Zhuzhou Kerui Cemented Carbide Co., Ltd.

Zhuzhou Kerui Cemented Carbide Co., Ltd.

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  • Analysis of the Current Situation of China's Tungsten Carbide Industry in 2024
    Analysis of the Current Situation of China's Tungsten Carbide Industry in 2024 With the technological progress of related industries such as petroleum, mining, automotive, and machinery, the upgrading and replacement of the domestic hard alloy market will be accelerated. The general low-end product market will gradually shrink, and the demand for precision wear-resistant hard alloy parts, CNC blades, integral cutting tools, ultrafine alloys, and large shaped products will continue to increase. Introduction to Tungsten Carbide Tungsten carbide is an alloy material made from hard compounds of refractory metals and bonded metals through powder metallurgy process. Hard alloy has a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance, corrosion resistance, etc. Especially its high hardness and wear resistance remain basically unchanged even at a temperature of 500 ℃, and still have a high hardness at 1000 ℃. With the development of downstream industries, the demand for cemented carbide market is constantly increasing. In the future, the manufacturing of high-tech weapons and equipment, the advancement of cutting-edge science and technology, and the rapid development of nuclear energy will greatly increase the demand for hard alloy products with high technological content and high quality stability. The current situation of the tungsten carbide industry Hard alloy, as an intermediate and consumable in industrial production, is known as the "teeth of industry". Its products are widely used in various industries such as mining, oil drilling, engineering machinery, metal cutting machine tools, automobile manufacturing, electronic information, and aerospace and military industry. In recent years, with the stable growth of the economy, the demand for hard alloys in downstream industries and domestic and foreign markets has been continuously increasing, leading to the continuous growth of China's hard alloy industry market. China has developed into the world's largest producer and consumer of hard alloys. China's manufacturing industry is in a recovery stage, which will drive the demand for hard alloy products. China is the country with the largest production of hard alloys, with an overall upward trend in production. The hard alloy industry in China is highly concentrated. The China Tungsten Industry Development Report points out that in 2023, the total production of hard alloys in China was about 51200 tons, a year-on-year increase of 1.4%. According to statistical data, the total revenue of 57 enterprises in China's hard alloy industry reached 37.4 billion yuan, a year-on-year increase of 9.68%; The total profit reached 3.2 billion yuan, a year-on-year increase of 2.1%. Among them, nine enterprises have profits exceeding 100 million yuan, including Xiamen Jinlu, Zhuzhou Oukeyi, Zhangyuan Tungsten Industry, Zhuzhou Huarui, Suzhou Xinrui, China Tungsten High tech and their four subsidiaries (Zhuzhou Hard Alloy Group, Zhuzhou Diamond Cutting, Shenzhen Jinzhou Precision Technology, and Zigong Hard Alloy). The total profit of nine companies is 2.13 billion yuan, accounting for 67% of the industry's total profit. Hard alloys are widely used as tool materials, such as turning tools, milling cutters, planers, drill bits, boring cutters, etc., for cutting cast iron, non-ferrous metals, plastics, chemical fibers, graphite, glass, stone and ordinary steel. They can also be used for cutting difficult to process materials such as heat-resistant steel, stainless steel, high manganese steel, tool steel, etc. They are widely used in military industry, aerospace, mechanical processing, metallurgy, petroleum drilling, mining tools, electronic communication, construction and other fields. According to relevant data from the China Tungsten Association, during 2023, the main demand for hard alloys in China comes from cutting tool alloys (accounting for 51%), wear-resistant tool alloys (accounting for 24%), mining tool alloys (accounting for 20%), and others (accounting for 5%). In addition, according to relevant data from the China Tungsten Association, the overall consumption of hard alloys in China showed a continuous growth trend from 2019 to 2023. As of the end of 2023, the consumption of hard alloys in China reached 37200 metal tons. It can be seen that in recent years, the demand for hard alloy in China has remained at a high level for a long time. According to the in-depth research report on the supply and demand layout and investment development strategy of China's hard alloy industry chain from 2024 to 2029 by China Academy of Industry Research In recent years, the Chinese tungsten carbide industry has made significant progress in material research and development, process innovation, and other aspects. A series of high-performance and high value-added hard alloy products have been launched, meeting the diversified needs of the market. The application of hard alloys in CNC machine tools, automotive manufacturing, aerospace and other fields is becoming increasingly widespread. Meanwhile, with the rise of the consumer electronics industry, hard alloy cutting tools are gradually being applied in these fields. In the future, with the continuous innovation of technology and the optimization and development of the industrial chain, the application fields of hard alloy materials will be further expanded.

    2024 06/12

  • Applications of Tungsten Carbide
    Applications of Tungsten Carbide Tungsten carbide has a series of excellent properties and a wide range of applications, and their application areas continue to expand over time. The main applications are as follows: Cutting tools: Hard alloy can be used as various cutting tools. The amount of cemented carbide used for cutting tools in our country accounts for about one-third of the total production of tungsten carbide, of which about 78% is used for welding tools and about 22% is used for rotating tools. However,the tungsten carbide used for CNC cutting tools only accounts for about 20% of the hard alloy used for rotary cutting tools. In addition, there are cutting tools such as integral carbide drill bits, integral carbide small circular saw blades, and micro tungsten carbide drill bits. Geological mining tools: Geological mining tools are also a major use of hard alloys.Tungsten carbide used in geology and mining in our country account for about 25% of the total production of hard alloys, mainly used for impact drilling bits, geological exploration bits, mining and oilfield down hole bits, cone bits, coal mining machine picks, and impact bits used in the building materials industry. Mold: Hard alloy used for various molds accounts for about 8% of the total production of hard alloy, including drawing dies, cold heading dies, cold extrusion dies, hot extrusion dies, forming dies, and drawing core rods, such as long core rods, spherical core rods,floating core rods, etc. In recent decades, the consumption of various tungsten carbiderollers used for rolling wire has rapidly increased, and cemented carbide used for rollers in China have accounted for 3% of the total production of hard alloys. Parts: There are many products that use tungsten carbide as structural components, such as rotary sealing rings, compressor pistons, lathe chucks,grinding machine spindles, bearing journals, etc. Wear resistant parts: Wear resistant parts made of hard alloy include nozzles,guide rails, plungers, ball bearings, tire anti slip strips, snow shovels, etc. High pressure and high temperature resistant cavity: The main purpose is to produce anvils and cylinders for artificial diamonds. Cemented carbide used for anvils and cylinders account for 9% of China's total hard alloy production. Other Applications: The use of tungsten carbide is becoming increasingly widespread, and in recent years, it has been continuously expanded in the civilian field, such as watch chains, watch cases, zippers for high-end bags, hard alloy trademarks, etc.

    2024 05/09

  • Price Adjustment of Tungsten Carbide Products
    Price Adjustment of Tungsten Carbide Products Hello dear valued customers,how are you? We Sincerely thank you for your long-term trust and strong support to our company! Kerui has always insisted on manufacturing high-performance tungsten carbide products, continuously improving in research and development, technology, and quality management, to bring customers higher cost-effective carbide products. But given the continuous rise in prices and scarce supply of tungsten carbide raw material , our company is now facing extremely severe cost pressures. In order to ensure consistent product quality standards and maintain the long-term healthy development of the company, based on the concept of mutual benefit and common development, and after careful research and consideration from multiple aspects, our company has decided to adjust the sales prices of all products starting from 22nd., April, 2024. The specific adjustment situation will be notified separately by the sales business managers according to the product category or re-quoted after receiving inquiries from your company. We deeply apologize for any inconvenience caused to your company by this price adjustment.

    2024 04/28

  • Brief Analysis of the Application of Hard Alloy Cutting Tools and Tool Materials
    Brief Analysis of the Application of Hard Alloy Cutting Tools and Tool Materials Turning is the main process of mechanical manufacturing processing technology. Especially in the heavy machinery processing and manufacturing industry, the structural dimensions of workpieces can be considered huge, weighing up to 60-80t, or even hundreds of tons. The processing equipment can rotate with a diameter of 6m for heavy-duty horizontal cars and 10m for heavy-duty vertical cars. Compared with ordinary machining, heavy-duty turning has higher cutting depth, lower cutting speed, and slower feed rate. The machining allowance can reach 35-50mm on one side, coupled with poor balance of the workpiece during the cutting process, uneven distribution of machining allowance, and vibration caused by imbalanced parts of the machine tool, resulting in a significant consumption of maneuvering and auxiliary time in the dynamic imbalanced machining process. Therefore, in order to process heavy parts and improve productivity or machine equipment utilization, it is necessary to start with increasing the thickness of the cutting layer and the amount of feed, focusing on the cutting amount and tool selection, improving the tool structure and geometric shape, taking into account the strength characteristics of the tool material, in order to increase the cutting amount and significantly reduce the maneuvering time. Selection of Tool Materials The commonly used cutting tool materials include high-speed steel, hard alloy or tungsten carbide or cemented carbide, cubic boron nitride (CBN), ceramics, etc. The depth of heavy cutting can generally reach 30-50mm, with uneven allowance and a hardened layer on the surface of the workpiece. The tool wear in the rough machining stage is mainly in the form of abrasive wear: the cutting speed is generally 15-20m/min, although the speed value is in the area where chip accumulation occurs, the high temperature of cutting is enough to make the contact point between the chip and the front cutting surface in liquid state, reducing friction and suppressing the generation of chip accumulation. The selection of cutting tool materials should be resistant to damage and impact. Ceramic cutting tools have high hardness, but low bending strength and poor impact toughness, making them unsuitable for heavy-duty turning with uneven margins. CBN also has the same problem. Hard alloy has a lower coefficient of friction, which can reduce cutting force and cutting temperature during cutting, greatly improving tool durability, and is suitable for rough machining of high hardness materials and heavy-duty turning. Hard alloys are divided into tungsten cobalt (YG), tungsten cobalt titanium (YT), and tungsten carbide (YW). When processing steel materials, G-type hard alloys have good strength and toughness, but poor high-temperature hardness and toughness. During heavy turning, the workpiece undergoes large plastic deformation, severe friction, and high cutting temperature. Therefore, YG type hard alloys are rarely used in heavy turning. YT type hard alloys have high hardness and wear resistance, high heat resistance, anti bonding diffusion ability, and oxidation resistance. They are commonly used tool materials for heavy-duty turning and are suitable for processing steel materials. However, during low-speed turning, the unstable cutting process can lead to poor toughness of YT type alloys, resulting in edge breakage, especially when processing high-strength alloy materials; The durability of YT type hard alloys decreases rapidly and cannot meet the usage requirements. In this case, use W-type cutting tools or fine-grained, ultrafine grain alloy cutting tools (such as 643). Fine grained alloys have good resistance and are more suitable for processing cold hard cast iron products. The efficiency can be increased by more than twice compared to YW type cutting tools. Improving the turning speed of heavy-duty machining with hard alloy cutting tools is one of the key factors in improving productivity and also a favorable factor in shortening the production cycle. In the process, there are several strokes to cut off large margins, and each cutting depth is very small, while using hard alloy cutting tools for cutting,but utilizing the cutting performance of tungsten carbide cutting tools, the cutting speed will be greatly improved.

    2024 03/01

  • How to Use Tungsten Carbide Buttons
    How to Use Tungsten Carbide Buttons Perhaps you are not aware that carbide buttons are also a common type of drill tool product, but everyone uses a device to extend its service life. Because only in this way can we bring more benefits. So how should tungsten carbide button drill bits be used to make them more reasonable and have a longer service life?Let's take a look together. The service life of cemented carbide button is determined by the inherent quality of the product, scientific selection, and accurate usage methods. During the use of drill bit products, it is necessary to observe the condition of the drill bit in a timely manner, especially for hard rocks. After using for a period of time, it is necessary to determine whether the product needs to be ground. The phenomenon of "snake skin" or cracking can be determined based on the hard alloy teeth; The rock drilling equipment is not disorderly, and the drilling speed has significantly decreased by 30%; The wear platform of carbide button teeth is judged based on three situations: the platform diameter has reached 1/3-1/2 of the teeth diameter. Ball toothed drill bits bear significant strain and stress during rock drilling, so they should not be used recklessly. Careful operation and use are necessary to achieve significant benefits. In addition, during the use of rock drilling, the driving force and impact energy should be reduced, and a large amount of flushing water should be used. Otherwise, without water, the temperature of the drill head will rise. Once the flushing water is opened, it will cause micro cracks in the drill head alloy, abnormal failure of the product, and dry drilling will create a risk of jamming and blockage of the drill head water hole. When one of the above three types of products is introduced, it indicates that the drill bit needs to be ground, otherwise the drilling efficiency will decrease, the rock's reaction force will increase, and the stress can increase by 50%. This not only causes alloy fracture, but also damages the drill bit body and even other supporting tools, accelerating the wear of rock drilling equipment.

    2024 02/02

  • Tungsten Carbide Gauge Protection for Stabilizers
    Diameter Preserving Carbide Strip/Carbide Gauge Protection Tungsten Carbide Inserts for Well Protection of Drill Bit The diameter retaining strip is a hard alloy strip embedded around the drill bit by drill bit manufacturers to improve the lifespan of the drill bit and protect the drill body. Generally, the material used is hard alloy or tungsten carbide or cemented carbide, and some manufacturers use polycrystalline or diamond composite sheets to ensure the diameter of the drill bit. Specifications Generally, it is a long strip shape, and the specifications are determined based on the size of the drill bit. The most commonly used models are 10.5X 5.6X2.5, 13X5X4, 15.5X5.6X2.5, 20X7X4, 20X4X2.5, 20X6X4, 20X4X3, 21x5.6x2.5, 25x5x4,25x7x4, 27X4X2.5, 27x5.8x2.5, 27X6X3, 30X6X3, 33X6X3, 33x5.8x2.5 and various manufacturers can process it into various shapes and sizes according to requirements. New Trends With the continuous progress of drill bit technology, the requirements for drill bits are also increasing. Many drill bits use diamond composite discs as diameter protectors. There are generally two types: one is to use half discs to place the cutting surface outside as diameter protectors, which have higher strength and wear resistance. Another method is to cut the composite piece into a circular arc shape and place it under the outer edge of the drill bit, tightly connecting it to fully protect the outer diameter of the drill bit. Zhuzhou Kerui manufacture various types of carbide gauge protection for stabilizers. Customized carbide bar for well protection of drill bit or other tungsten carbide products are also available. Should you have any need in this carbide stabilizer inserts or other carbide products,pls feel free to contact us for more details.

    2024 01/27

  • Cemented Carbide Brazed Tip for Turning Threading Lathe Cutting Tools
    Cemented Carbide Brazed Tip for Turning Threading Lathe Cutting Tools Tungsten carbide brazed tips are cutting tools made from a combination of tungsten carbide and a brazing material. The tungsten carbide is a hard and durable material known for its high resistance to wear, heat, and corrosion. It is formed by combining tungsten and carbon atoms through a chemical reaction. The brazing material, usually a silver-based alloy, is used to bond the tungsten carbide tip to a steel or other metal body. The brazing process involves heating the two materials to a high temperature and melting the brazing material, which then flows into the gaps between the tungsten carbide particles and the metal body. As the brazing material cools and solidifies, it forms a strong and durable bond. Carbide brazed tips are commonly used in various cutting applications, such as drilling, milling, turning, and threading. These carbide welding inserts are known for their excellent cutting performance, long tool life, and resistance to wear and heat. The hardness and toughness of tungsten carbide make it suitable for cutting a wide range of materials, including metals, plastics, wood, and composites. These welding tips are available in various shapes and sizes to suit different cutting requirements. They can be customized with different geometries, coatings, and edge preparations to optimize their performance for specific applications. Tungsten carbide welding tips are widely used in industries such as automotive, aerospace, construction, and manufacturing, where high-quality cutting tools are essential for efficient and precise machining operations. Different grades with different applications,for example: YG3,K05: Suitable for finishing of cast iron and nonferrous metal. YG6X, K10: Finishing & semi-finishing of cast iron and nonferrous metals and also for the machining of manganese steel and hardening steel. YG6,K15: Suitable for the roughing of cast iron and light alloys and also for the milling of cast iron and low-alloy steel. YG8,K20,YW1,M10: Suitable for finishing and semi-finishing of stainless steel and conventional alloy steel. YW2, M20: The grades can be used for the semi-finishing of stainless steel and low-alloy steel and it is mainly used for the machining of railway wheel hubs. YT15,P10: Suitable for the finishing and semi-finishing for steel and cast steel with a moderate feed rate and rather high cutting speed. YT14,P20: Suitable for the finishing and semi-finishing of steel and cast steel. YT5,P30: Suitable for the heavy duty rough turning of and cast steel with a big feed rate at a medium and low speed under unfavorable working conditions. Zhuzhou Kerui manufacture various types and grades of carbide brazed tips For lathe tool, turning threading tools. Should you have any need in tungsten carbide brazed tips/carbide welding tips/carbide brazed inserts or any other tungsten carbide products,pls feel free to contact us for more details. Contact: Cherry Mob./Wechat/WhatsApp: +86 13337235459 E-mail: export at krcarbide.cn

    2024 01/13

  • Shipment of SS10 Tips 15x10x5
    Shipment of SS10 Tips 15x10x5 for Circular Saw Blade Used for Cutting Stone SS10 tips are made from 100% virgin tungsten carbide.These ss10 tips are to be welded onto the seats on the blades for stone cutting machines which can be used for the processing of various kinds of stones, such as limestone, sandstone, tufa stone, granite etc. Zhuzhou Kerui produce various types of stone cutting tips such as SS10 tips with size 15x10x5, SS10 tips in regular shape with size 20x12x3, carbide chainsaw inserts, carbide saw tips, carbide tips in 5 points,10 points, 15 points for stone processing, etc. We sell lots of these stone cutting tips to many countries such as Kenya, Libya, Egypt, Italy, Turkey, Malta, etc. One of our customers order large quantity of SS10 tips, we just finished packing and the carbide stone cutting tips SS10 are waiting for shipment. Thank you very much for the customers' trust and support to us always! Hope to work with more customers. Should you have any need in carbide stone cutting tips or any other tungsten carbide products,pls feel free to contact us for more details.

    2023 12/04

  • Characteristics of Tungsten Carbide Strips Materials
    Characteristics of Tungsten Carbide Strips' Materials Tungsten carbide strips are known for their exceptional hardness and wear resistance. Here are some key characteristics of tungsten carbide strips materials: 1. Hardness: Tungsten carbide is one of the hardest materials available, with a hardness rating of around 9 on the Mohs scale. This makes it highly resistant to abrasion and wear. 2. Wear resistance: Cemented carbide strips are commonly used in applications where extreme wear resistance is required, such as cutting tools, mining tools, and wear parts. They can withstand high-speed machining and heavy-duty operations without significant wear. 3. Strength: Hard metal strips have high tensile strength, making them resistant to deformation and breakage under heavy loads or impact. This strength allows them to withstand extreme conditions and maintain their shape and performance. 4. Thermal stability: Tungsten carbide has a high melting point and excellent thermal stability. It can withstand high temperatures without softening or losing its hardness, making it suitable for use in high-temperature applications. 5. Corrosion resistance: Tungsten carbide is highly resistant to corrosion and oxidation, making it suitable for use in harsh environments or corrosive materials. 6. Chemical stability: Tungsten carbide strips are chemically inert and do not react with most chemicals or substances. This makes them suitable for use in a wide range of industrial applications. 7. Electrical conductivity: Tungsten carbide has low electrical conductivity, making it suitable for applications where electrical insulation is required. 8. Dimensional stability: Tungsten carbide strips have excellent dimensional stability, meaning they maintain their shape and size even under extreme conditions. This allows for precise and accurate machining and tooling. Overall, tungsten carbide strips offer a combination of hardness, wear resistance, strength, and stability that makes them highly suitable for a wide range of industrial applications.

    2023 12/02

  • Delivery of Tungsten Carbide Stone Cutting Inserts for Fantini Chainsaw Machine
    Delivery of Tungsten Carbide Stone Cutting Inserts for Fantini Chainsaw Machine Tungsten carbide stone cutting inserts are specifically designed for use with Fantini chainsaw machines. These square inserts are made from a combination of tungsten carbide, a hard and durable material, and other elements that enhance their cutting performance. The carbide inserts feature a sharp cutting edge that is capable of efficiently cutting through various types of stone, including granite, marble, and limestone. They are designed to withstand the high impact and abrasion that occurs during the cutting process, ensuring a long tool life and reducing the need for frequent replacements. Tungsten carbide stone cutting inserts are available in different shapes and sizes to suit the specific requirements of the Fantini chainsaw machine. They are typically inserted into the chain links of the machine, allowing for precise and accurate cutting of stone blocks or slabs. These inserts are known for their excellent cutting performance, providing clean and smooth cuts with minimal chipping or cracking of the stone. They are also resistant to heat and can withstand high temperatures generated during the cutting process, ensuring consistent performance even in demanding cutting conditions. Zhuzhou Kerui manufactures various types of stone cutting tips, square carbide chainsaw inserts are one of our stone marble cutting tips. Customized carbide chainsaw tips are also available.

    2023 11/18

  • Brief Introduction of Tungsten Carbide Rods
    Introduction Of Tungsten Carbide Round Rod Carbide round rod is one of the many hard alloy materials, named after its cylindrical shape. It has the characteristics of high hardness, good bending strength, corrosion resistance, and rust resistance. Tungsten carbide rods are mainly used to make high-speed carbide drill bits, carbide milling cutters and tungsten carbide gongs, tungsten carbide micro drills, carbide needle punches, and can be used to process materials such as copper aluminum alloy, PCB, fiberglass reinforced materials, brake materials, graphite, high-temperature alloys, stainless steel, titanium alloy, quenched steel, etc. Tungsten carbide rods, also known as carbide round rods, are produced by Zhuzhou Kerui, a professional manufacturer of hard alloy products and products in Zhuzhou. Based on Zhuzhou tungsten carbide production technology, we provide high-performance carbide rods. Our company uses high-quality ultra-fine tungsten carbide powder as raw material and adopts professional preparation technology to produce ultra-fine grained hard alloy round rods in bulk. They have high strength and hardness, excellent performance, and are the preferred high-quality material for overall CNC milling and hole processing tools, widely used in various production and processing fields. We also can customize the carbide rod according to your specifications to meet your usage needs for tungsten carbide round rods and bars. As a type of hard alloy material, carbide rods are mainly composed of tungsten carbide powder, cobalt powder, binder, and a small amount of other precious metals, which are sintered by powder metallurgy method at a high temperature of 1300 degrees Celsius. They have high hardness, high strength, high temperature resistance, high wear resistance, and good impact toughness. Hard alloy rods are mainly used to make high-quality tungsten steel drill bits and tungsten steel milling cutters, tungsten carbide gongs, etc. for processing black metals, wear resistant parts on drilling nozzles and industrial machinery equipment. The applicable performance and quality of hard alloy rods are mainly determined by the material formula (the material formula of hard alloy rods for various purposes is not consistent, and a specific formula must be selected according to the specific purpose) and sintering process. The formula of cemented carbide rods with different usage requirements must be specially prepared, which means that the performance of different grades of hard alloy rods varies. Customers should carefully select and purchase suitable carbide rods. Based on quality and focusing on brand, Zhuzhou Kerui Cemented Carbide Co., Ltd. relies on Zhuzhou Cemented Carbide production technology as the foundation, with Zhuzhou Cemented Carbide's complete industrial chain as a solid backing, guided by customer needs, focuses on every detail of cemented carbide production technology, and provides high-quality alloy products for customers. Customers in need are welcome to contact Kerui, We will wholeheartedly provide you with high-quality products and excellent services.

    2023 11/13

  • On the Widespread Application of Mining Downhole Drill Bits
    On the Widespread Application of Mining Downhole Drill Bits (Mining) DTH drill bits are divided into two major series of DTH drilling tools: high wind pressure DTH drill bits and low wind pressure DTH drill bits. Our drill bit products use high-quality raw materials and advanced production processes to produce high-quality series of submerged drilling tools. DTH drill bits are widely used in earthwork engineering, mining, water well drilling, construction engineering, etc. 1. Select a down-hole drill bit based on the rock conditions (hardness, abrasiveness) and the type of drilling rig (high wind pressure, low wind pressure). Different forms of tungsten carbide teeth and tooth arrangement methods are suitable for drilling different rocks. Choosing the correct DTH drill bit is a prerequisite for achieving the best usage effect; 2. When installing a down-hole drill bit, it is necessary to gently place the drill bit into the down-hole impactor clamp sleeve, and do not collide with force to avoid damaging the drill bit tail handle or clamp sleeve; 3. During the rock drilling process, it is necessary to ensure that the compressed air pressure of the down-hole drill is sufficient. If the impactor is working intermittently or the powder discharge from the borehole is not smooth, the compressed air system of the down-hole drilling rig should be checked to ensure that there is no rock debris in the borehole during the drilling process; 4. If metal objects are found to fall into the hole, they should be promptly sucked out with a magnet or removed by other methods to avoid damaging the drill bit; 5. When replacing the drill bit, pay attention to the size of the drilled hole. If the diameter of the drill bit is excessively worn, but the blast hole has not been drilled yet, a new drill bit cannot be replaced to avoid jamming. You can use old drill bits that have been used and have a roughly the same wear diameter to complete the operation. Zhuzhou Kerui Cemented Carbide produce various types and grades of carbide buttons which are used for drill bits,etc. Should you have any need for carbide buttons or drill bits,pls feel free to contact us for more details.

    2023 11/07

  • More than 500 global manufacturers participated in the China Advanced Hard Materials and Tools International Expo in Zhuzhou
    More than 500 global manufacturers participated in the China Advanced Hard Materials and Tools International Expo in Zhuzhou On October 20th, the China Advanced Hard Materials and Tools International Expo opened in Zhuzhou, attracting over 500 well-known manufacturers and brands from around the world to participate. Liu Guangyue, Director of the Standing Committee of the Zhuzhou Municipal People's Congress and Director of the Zhuzhou Advanced Hard Materials Industry Chain, and Wu Lingyun, Secretary of the Party Working Committee and Tianyuan District Committee of the Zhuzhou High tech Zone, as well as the First Deputy Director of the Zhuzhou Advanced Hard Materials Industry Chain, attended the event. The exhibition was held at the International Trade Center for Advanced Hard Materials and Tools Industry in Zhuzhou, China. More than 500 globally renowned manufacturers and brands participated in the exhibition, attracting over 200 application manufacturers and 10000 industry professionals to attend. The exhibition scope includes raw materials, hard alloys, metal ceramics and other superhard materials in the entire hard material industry chain, tools and products, molds, industrial supporting equipment, mechanical equipment, testing equipment and instruments, and industrial services. The International Expo brings together high-quality forces from both domestic and foreign advanced tungsten carbide materials and tool industries, forming a systematic docking pattern with the global advanced manufacturing industry cluster based on close cooperation between Hunan's advanced manufacturing industry clusters. The exhibition will continue until October 23rd. The International Trade Center is a global order processing center and international procurement and sales center for China's advanced hard materials and tool industry. It is also a core industry commercial circulation platform for the Changzhutan Advanced Hard Materials Industrial Park. With the holding of the first International Expo, the International Trade Center will achieve international procurement and sales, as well as system support in the fields of research and production of cutting tools, high-end equipment manufacturing, ultra precision machining, and mold manufacturing. After the first and second phases of the project reach full production capacity and the international trading center functions are fully realized, it is expected that the annual transaction volume will reach 10 to 20 billion yuan, with an increase of 300 million US dollars per year in foreign trade. Zhuzhou is the birthplace of the cemented carbide industry in New China. As early as the National "First Five Year Plan" period in 1954, Zhuzhou Cemented Carbide Factory was established. After nearly 70 years of hard work and entrepreneurship, Zhuzhou has developed into the largest cemented carbide production base in China, with 279 cemented carbide enterprises led by Zhujiang Group, accounting for 36% of the total number of enterprises in the same industry in China. Famous brands such as "Diamond", "Hard Stone", and "Ouke Yi" have emerged; Four national technological innovation platforms such as the State Key Laboratory of Cemented Carbides, two material analysis and testing centers and 21 provincial technological innovation platforms have been built. At present, the market share of Zhuzhou's hard alloy products ranks first globally, and the market share of high-end CNC blades ranks first nationwide. The "Capital of Hard Alloys" business card is renowned both domestically and internationally.

    2023 10/20

  • Types Of Tungsten Carbide Tips for Stone Cutting or Processing
    Types Of Tungsten Carbide Tips for Stone Cutting or Processing Carbide stone cutting tips are high-performance tools designed for cutting and shaping various types of stones and masonry materials. These carbide tips are made from a combination of tungsten carbide and other hard materials, resulting in a durable and long-lasting cutting edge. The carbide stone cutting tips feature a sharp and precision-engineered design, allowing for clean and accurate cuts. They are suitable for use with handheld stone cutting tools, such as chisels, hammers, or power tools like angle grinders or stone circular saw blades, chain saw machines, etc. These carbide cutting tips are ideal for professionals in the construction and masonry industries, as well as DIY enthusiasts looking to undertake stone-related projects. They are commonly used for tasks such as cutting bricks, tiles, concrete blocks, granite, marble, and other natural or artificial stones. The carbide material used in these cutting tips provides excellent resistance to wear and heat, ensuring a prolonged lifespan even when used in demanding cutting applications. Additionally, the carbide tips or inserts are designed to minimize chipping or splintering of the stone, resulting in a smooth and professional finish. Overall, carbide stone cutting tips are a reliable and efficient solution for anyone seeking to achieve precise and clean cuts in various stone materials. With their exceptional durability and cutting performance, these tungsten carbide tips are a valuable addition to any stone cutting toolkit. Zhuzhou Kerui produces various types and grades of carbide stone cutting tips. 1. SS10 tips: a. Carbide SS10 Tips in rectangular shape Size: 20x12x3, 20x12x3.3, 20x12x3.5, etc. b. Carbide SS10 Tips with clearance angle Size: 15x10x5, 14x10x4.7, etc. 2. Carbide Stone Cutting Inserts for Chain Saw Machine a. Star shape Size: 16.1x16.9x6.7, etc. b. square shape Size: 12.7x12.7x6.5, 13.1x13.1x7, etc. 3. Carbide Saw Tips for Stone cutting Size:12.5x4.0x14, 12.5x4.5x14, etc. 4. Carbide tips for stone processing a. five points carbide tips Size: Ф33xФ8.1x6.4-5Z, etc. b. ten points carbide tips Size: Ф33xФ8.1x6.3-10C,etc. c. fifteen points carbide tips Size: Ф49.2xФ20x6.0-15Z, etc.

    2023 10/14

  • Packing of Tungsten Carbide Thrust Blocks Used on Thrust Bearing
    Tungsten Carbide Thrust Blocks Used on Thrust Bearing Tungsten carbide thrust block used on thrust bearings is a highly durable and robust component designed to handle high loads and extreme conditions. It is often used in heavy machinery and industrial applications where high performance and reliability are critical. The tungsten carbide thrust block is typically a dense, hard material that is resistant to wear and tear. It is composed of tungsten carbide, a compound made from equal parts of tungsten and carbon atoms. This material is known for its incredible hardness and high melting point, which makes it ideal for use in environments with high temperatures and pressures. The thrust block itself is a critical part of a thrust bearing, designed to support the axial load or force along the shaft. It is typically flat and circular, with a hole in the center to accommodate the shaft. Its primary function is to prevent or reduce friction, allowing the machinery to operate more smoothly and efficiently. The use of tungsten carbide in the thrust block further enhances its performance. It provides superior resistance to wear, corrosion, and heat, ensuring that the thrust block can withstand the rigors of heavy-duty operations. This results in longer service life, less maintenance, and improved overall performance of the machinery. Zhuzhou Kerui produces various types of carbide thrust blocks. We can produce tungsten carbide thrust blocks or any other tungsten carbide products as per your drawing or sample. Should you are in need of cemented carbide thrust blocks or any other carbide products,pls feel free to contact us for more details.

    2023 10/06

  • Delivery of Tungsten Carbide Octagon Tips for Core Drill Bits
    Delivery of Tungsten Carbide Octagon Tips for Core Drill Bits Tungsten carbide octagon tips for core drill bits are specialized tools used in drilling applications. They are made from a compound of tungsten and carbon, making them extremely durable and resistant to wear, heat, and impact. This makes them ideal for heavy-duty drilling tasks, such as drilling into hard materials like concrete, stone, or metal. These octagon tips are shaped in an octagonal form. This unique shape provides multiple cutting edges, increasing the efficiency and precision of the drilling process. It also helps in reducing the heat produced during drilling, thereby extending the lifespan of the drill bit. The carbide octagon tips are typically brazed onto the core drill bits, providing a strong bond that can withstand high drilling pressures. They can be easily replaced once they wear out, making them a cost-effective choice for industrial drilling applications. Overall, tungsten carbide octagon tips for core drill bits are a vital component in drilling operations, offering high performance, durability, and longevity. They are suitable for both wet and dry drilling applications. Zhuzhou Kerui produce various types and grades of cemented carbide octagonal tips for your selection. We also produce many other kinds of tungsten carbide products such as carbide button, carbide rod, carbide bar for VSI crusher, carbide strip, carbide sheet, carbide brazed tips, carbide stone cutting tips, carbide gauge protection, carbide wear parts, etc. Customized carbide products are also available. Should you have any need in carbide octagon tips or any other tungsten carbide products,pls feel free to contact us for more details. Contact: Cherry Mob./whatsapp: +86 13337235459 E-mail: export@krcarbide.cn

    2023 09/25

  • What Factors Affect the Lifespan of Tungsten Carbide Tips/Inserts?
    What Factors Affect the Lifespan of Tungsten Carbide Tips/Inserts? Hard alloy tips are a commonly used tool for cutting materials, and their lifespan determines their effectiveness and economy. The lifespan of tungsten carbide blades are influenced by various factors, which will be explained in detail below. Firstly, the tip material. Tungsten carbide tips are mainly composed of cobalt based alloys and hard alloy particles, and different material ratios have a direct impact on the performance and lifespan of the blades. Generally speaking, the higher the content of cobalt based alloys, the better the toughness and impact resistance of the blade, but the hardness and wear resistance are relatively poor. The size and shape of hard alloy particles can also affect the service life of the blade. Generally speaking, the finer the particles and the more regular the shape, the better the cutting ability and wear resistance of the blade. Secondly, the tip structure. The structural design of the tip is also an important factor affecting its lifespan. A reasonable tip structure can improve the stability and stiffness of the blade, reduce the vibration and deformation of the blade. In addition, the selection of parameters such as the alloy layer thickness, back angle, and roll angle of the blade will directly affect the lifespan of the blade. Thirdly, cutting conditions. The cutting conditions mainly include parameters such as cutting speed, feed rate, and cutting depth. The cutting speed directly affects the friction and wear of the blade. Generally speaking, increasing the cutting speed can effectively improve the lifespan of the blade while ensuring processing quality. The feed rate and cutting depth can also affect the wear of the blade, and larger feed rates and cutting depths can accelerate the wear of the blade and reduce its lifespan. Fourthly, cutting materials. The hardness, plasticity, and thermal conductivity of cutting materials also directly affect the lifespan of the blade. Materials with higher hardness will increase the wear of the blade and reduce its lifespan; A material with good plasticity will reduce the stress and friction of the blade, and reduce the wear of the blade; Materials with high thermal conductivity will quickly remove the heat generated during the cutting process, reducing blade wear. Fifth, tool lubrication. Tool lubrication is crucial for reducing blade wear and improving cutting efficiency. Suitable lubricants can reduce friction and heat during the cutting process, reducing blade wear; At the same time, lubricants can also play a cooling and cleaning role, extending the service life of the tungsten carbide tips. Sixth, cutting method. Different cutting methods can also have an impact on the lifespan of the blade. For example, for certain materials, dry cutting is more beneficial for the lifespan of the blade than liquid cooling cutting, while liquid cooling cutting can improve cutting speed and surface quality. In addition to the above factors, there are other factors that may have an impact on the lifespan of hard alloy blades, such as the use and maintenance of cutting tools, and the way they come into contact with the workpiece. To improve the service life of hard alloy blades, it is necessary to comprehensively consider the above factors and select appropriate cutting tools and parameters based on specific processing needs and material characteristics. At the same time, regular inspection and maintenance of cutting tools, and timely replacement of severely worn blades are also important measures to extend the service life of blades.

    2023 09/16

  • Introduction of Tungsten Carbide Welding Tips
    Introduction of Tungsten Carbide Welding Tips Hard alloy welded tips or tungsten carbide brazed inserts/tips are a part of the tungsten carbide brazed turning tool, which is made by connecting the hard alloy welded tips and the ordinary structural steel cutter rod through welding. Its advantages are simple structure, convenient manufacturing, good tool rigidity, and flexible use, making it widely used. Application scope:tungsten carbide welding blade is a common metal cutting tool blade on cutting machine tools, usually used on turning and milling cutters. Suitable for processing various types of steel parts, cast iron, non-ferrous metals and alloys. Product properties: Hard alloy welded blades have high hardness, wear resistance, and heat resistance, and are made by high-temperature sintering of WC (tungsten carbide) and CO (cobalt) powders with high wear and heat resistance. Tungsten cobalt type blades, referred to as YG according to the national standard, correspond to the international nominal K class. This type of cemented carbide blade is used for processing and producing short chips of black metal, non-ferrous metal, and non-metallic materials, such as cast iron, aluminum alloy, copper alloy, plastic, adhesive wood, etc. Commonly used brands include YG6/YG8, etc. Characteristics of Cemented Carbide Brazed Tips : Tungsten carbide brazed tips have several characteristics that make them highly desirable for various applications: 1. Hardness: Tungsten carbide is one of the hardest materials known, with a hardness of around 9 on the Mohs scale. This makes tungsten carbide brazed tips extremely wear-resistant and able to withstand high temperatures and abrasive forces. 2. Heat resistance: Tungsten carbide has a high melting point of around 2,870°C (5,200°F), which allows tungsten carbide brazed tips to maintain their integrity even at high temperatures. This makes them suitable for use in high-speed cutting and drilling applications. 3. Toughness: Despite its hardness, tungsten carbide is also known for its toughness. It can withstand impacts and shocks without breaking or chipping, making tungsten carbide brazed tips highly durable and long-lasting. 4. Corrosion resistance: Tungsten carbide is highly resistant to corrosion, which makes tungsten carbide brazed tips suitable for use in harsh environments or with corrosive materials. 5. Versatility: Carbide brazed tips can be used in a wide range of applications, including cutting, drilling, milling, and turning. They can be brazed onto various tool bodies or holders, allowing for versatility in different machining operations. 6. Precision: Cemented carbide brazed tips can be manufactured with high precision, ensuring consistent and accurate machining results. This makes them suitable for applications that require tight tolerances and high-quality finishes. 7. Cost-effectiveness: While carbide welding inserts may have a higher initial cost compared to other cutting tool materials, their long lifespan and durability make them cost-effective in the long run. They can outperform and outlast other materials, reducing the need for frequent tool changes and increasing productivity.

    2023 09/04

  • Tungsten Carbide Buttons for Cone Drill Bits
    Tungsten Carbide Buttons for Cone Drill Bits Roller bit or cone drill bit is a commonly used drilling tool for oil and gas drilling, consisting of a drill body and many rollers. It has the characteristics of simple structure and high work efficiency, and is widely used in various drilling operations. When the cone bit is working, the cutting teeth alternately contact the bottom of the well, resulting in low rock breaking torque, small contact area between the cutting teeth and the bottom of the well, high specific pressure, and easy entry into the formation; The total length of the working blade is large, thus reducing wear to a certain extent. Hard alloy button teeth are one of the important components of roller drills. It is located on the tooth edge of the drill bit and is responsible for cutting rocks and breaking strata. Tungsten carbide buttons are a type of alloy material produced by powder metallurgy technology, based on one or several refractory metal carbides (such as tungsten carbide, titanium carbide, tantalum carbide, niobium carbide, etc.) powder, with cobalt, nickel, and other metal powders as binders. They have excellent thermodynamic and chemical properties.These carbide buttons comes with different shapes such as carbide spherical button, carbide conical button, carbide flat-top button, carbide wedge button, carbide parabolic button, etc. In drilling operations, cemented carbide button inserts bear enormous impact and friction forces, so they need to have high hardness, impact resistance, and wear resistance to maintain a long working life. At the same time, hard alloy button tips also need to have a certain degree of toughness to resist the strong impact and fracture risk of rocks. Such design and material requirements make tungsten carbide buttons a key component with excellent performance, which can stably carry out drilling operations under complex geological conditions. Image of Roller Drill Bit/ Cone Drill Bits The continuous innovation and improvement of hard alloy button teeth in drilling technology is of great significance for improving drilling efficiency and reducing costs. Continuously optimized carbide buttons can better adapt to different geological conditions and rock characteristics, improve drilling speed and penetration rate, and reduce the occurrence of bit sticking and drilling accidents. With the development of technology, the design and manufacturing of hard alloy buttonswill continue to develop towards higher performance and longer lifespan. Zhuzhou Kerui manufacture various types and grades of tungsten carbide buttons for cone drill bits or other types of drill bits, enclosed some types of our carbide buttons FYI. Should you need cemented carbide buttons or other tungsten carbide buttons,pls feel free to contact us for more details. Welcome to Contact Us: Contact: Cherry Mob./whatsapp: +86 13337235459 E-mail: export@krcarbide.cn

    2023 09/04

  • What`s the Function of Tungsten Carbide Bars in Sand Making Machines?
    What`s the Function of Tungsten Carbide Bars in Sand Making Machines? The cemented carbide bar of the sand making machine is a widely used hard alloy product in the market. So, what's carbide flat bar? What's the cemented carbide flat bar used for? The hard alloy bar of the sand making machine is the core accessory of a vertical impact crusher (sand making machine), used for crushing sand and gravel, and widely used in industries such as mining, sand and gravel, cement, metallurgy, and hydropower engineering. For these industries that need to withstand high-speed impact and strong wear resistance, the use of hard alloy materials is the ideal choice. Ordinary sand making machine accessories are usually made of high manganese steel, and better yet, high chromium alloy is used, And excellent sand making machine accessories are made of tungsten carbide strips. With the continuous development of the economy, the demand for sand and gravel in the construction industry and infrastructure projects has increased. Faced with the shortage of natural sand and the severity of the increasing demand for sand and gravel, our country has implemented environmental protection policies, and various manufacturers have launched new sand making machines. However, the wear resistance of the carbide strip on the throwing head, which is a key part of the sand making mechanism, determines the working efficiency of the machine. The carbide bars of the construction sand making machine are not only used for extremely hard materials, but also for fine and ultra fine crushing in industries such as artificial sand making, pre ground cement, mining, refractory materials, and other industries where material performance varies greatly. The sand making machine equipment using hard alloy strips has more wear-resistant vulnerable parts, and tungsten carbide strip material of the sand making machine is much better than ordinary ones, with a higher sand production rate. We specialize in researching and producing hard alloy bars for sand making machines. Based on different production intensity requirements, we use tungsten carbide materials with different hardness to effectively improve the efficiency of using tungsten carbide bars for sand making machines. Zhuzhou kerui produces various types and grades of tungsten carbide flat bars for VSI crusher. Just list some types FYI. Pls kindly note that customized carbide flat strip are also available. If you have any need in tungsten carbide bars,pls feel free to contact us for more details. Contact: Cherry Mob./whatsapp: +86 13337235459 E-mail: export@krcarbide.cn

    2023 08/26

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