What`s Tungsten Carbide or Cemented Carbide?
Tungsten carbide is a kind of alloy material made of hard compound of refractory metal and bonding metal by powder metallurgy process.
What`s the History of Tungsten Carbide or Cemented Carbide?
Tungsten Carbide was originally developed in Germany in the 1920`s, as there was an enormous requirement for die materials that were able to stand up to the high wear encountered in the drawing of tungsten filaments for light bulbs. As you know, the bulbs are used by everyone, so there needs lots of tungsten filaments for production. Afterwards, people developed many other applications of the cemented carbide.
What`s the Material Properties?
Cemented carbide is a kind of powder metallurgy products, which is mainly composed of carbide (WC, TiC) micron powder of hard refractory metals, and is sintered in vacuum furnace or hydrogen reduction furnace with cobalt (Co) or nickel (Ni), molybdenum (Mo) as the binder.
How is Tungsten Carbide or Cemented Made?
Cemented carbide is made by mixing tungsten carbide and cobalt in a certain proportion, pressing them into various shapes, and then semi sintering. This sintering process is usually carried out in a vacuum furnace. Put it in a vacuum furnace to complete sintering. The temperature at this time is about 1300 ℃ to 1500 ℃.
The sintering forming of cemented carbide is to press the powder into billets, heat them in the sintering furnace to a certain temperature (sintering temperature), keep them for a certain time (holding time), and then cool them down to obtain the cemented carbide materials with the required properties.
What`s the Performance Characteristics of Tungsten Carbide?
Cemented carbide has a series of excellent properties, such as high hardness, wear resistance, good strength and toughness, heat resistance and corrosion resistance. Especially its high hardness and wear resistance are basically unchanged even at 500 ℃, and still have high hardness at 1000 ℃.
The cutting speed of tungsten carbide tool is 4~7 times higher than that of high-speed steel, and the tool life is 5~80 times higher. The service life of molds and measuring tools is 20~150 times longer than that of alloy tool steel. It can cut hard materials of about 50HRC.
What`s the Application of Tungsten Carbide or Cemented Carbide?
With the development of tungsten carbide material, you can find the tungsten carbide is widely used in many industries such as cutting tools industry, aerospace industry, shipbuilding industry, agricultural and mining machinery industry, etc. Tungsten carbide is called the teeth of industry. Now matter which kind of applications you want, you are welcome to contact Zhuzhou Kerui or Cherry.