Tungsten carbide ball

Tungsten carbide , the formula WC. Called the Wolfram Carbide, black hexagonal crystals with metallic luster , hardness close to diamond , electricity, good heat conductor .
Melting point 2870 ℃, boiling point 6000 ℃, relative density of 15.63 (18 ℃). Tungsten does not dissolve in water , hydrochloric acid and sulfuric acid, and easy,Dissolved in nitric acid - hydrofluoric acid mixture . Pure Kekai tungsten & Molybdenum Technogy tungsten carbide rods carbide fragile, if mixed with a small amount of titanium, cobalt and other metals, can reduce brittleness. Tungsten carbide steel cutting tool is used , often by adding titanium carbide, tantalum, or mixtures thereof , to improve the antiknock capacity. Chemical stability of tungsten carbide . Tungsten carbide , the carbon atoms in the metal lattice embedded tungsten carbide rod gap , does not destroy the original metal lattice , interstitial solid solution is formed , it is also known as interstitial ( or insertion ) of the compound . High mixture of tungsten carbide and carbon can be prepared by heating , in the presence of hydrogen or hydrocarbons can accelerate the reaction. If the oxygen-containing compound was prepared using tungsten carbide ball , the final product must be subjected to vacuum treatment 1500 ℃, to remove the oxides of carbon . Suitable machined tungsten carbide at high temperature , the cutting tool can be produced , the material structure of the furnace , jet engine , gas turbine nozzles. Another is a compound of tungsten carbide and carbon two tungsten formula W2C, a melting point of 2860 ℃, boiling point 6000 ℃, relative density of 17.15 . Its nature, preparation method , use the same tungsten carbide steel , also known as carbide hardness second only to diamond , it is chemically stable , even in the case of heating , and no hydrochloric acid, sulfuric work, even in aqua regia can not be dissolved . Tungsten temperature, known as nature's most insoluble metal , melting point up to 3410 ℃; hardness also among the best in the metal , only heated to high temperatures, in order to pressure processing. Our production of tungsten balls are widely used in water meters , flow meters , pens and other fields !