The Raw Material For Tungsten Carbide And Tungsten Carbide Hole Saws

Update:22 Jan 2021

Everyone knows that hole saws are very hard materials and can cut a lot of metals, so do you know Tungsten carbide hole saws ? Do you know the composition of tungsten carbide?

Tungsten carbide hole saws can cut wood, plastic, aluminum, steel, chemical fiberglass, drywall, fiberboard, plaster, ceramic tiles, and work surfaces without nails.

Tungsten carbide uses metallic tungsten and carbon as raw materials. Tungsten powder with an average particle size of 3 to 5 μm and carbon black of the same amount are dry mixed with a ball mill. After fully mixing, it is pressed and molded into a graphite plate. Heat to 1400~1700℃ in resistance furnace or induction furnace, preferably 1550~1650℃. In the hydrogen stream, W2C is initially produced and continues to react at high temperatures to produce WC. Or firstly, tungsten hexacarbonyl is thermally decomposed at 650~1000℃ in CO atmosphere to prepare tungsten powder, and then reacted with carbon monoxide at 1150℃ to obtain WC. Temperatures higher than this temperature can generate W2C.

In fact, the raw material diamond of the Diamond cup grinding wheel is also a mineral composed of carbon elements.