In our first installment, we learned why Tungsten Carbide, or Carbide, is ideal for wear solutions. Today, we will learn how it is made.
To produce Cemented Tungsten Carbide, tungsten ore is crushed, heated, and treated with chemicals, then mixed with carbon.
The Carbide grains are sorted by size and mixed with powdered cobalt metal, which acts as a glue to hold the materials together, as well as other materials that improve the wear-resistant properties.
Now in a powder form, the Carbide is pressed into molds. Once removed from the molds, the product is placed in a sintering furnace and heated in a low-pressure hydrogen atmosphere to 1100-1300 degrees Celsius (2000-2400 degrees F). The cobalt melts, and the molded form shrinks to a solid, smaller size.
Next: Part Three: The Good Earth Tools Difference