In the previous article, we would like to share with you the use of tungsten.today，we will continue to talk about this topic.

    Tungsten carbide has high hardness, wear resistance and refractory. These alloys contain 85%~95% tungsten carbide and 5%~14% cobalt, and cobalt is used as binder metal, which makes the alloy have the necessary strength. It is mainly used in some alloys for processing steels, and also contains titanium, tantalum and niobium carbides. All these alloys are made by powder metallurgy. When heated to 1000~1100 C, they still have high hardness and wear resistance. The cutting speed of carbide tools far exceeds the cutting speed of the best tool steel tools. Cemented carbide is mainly used for cutting tools, mining tools and wire drawing dies.

      Hot and wear-resistant alloys are the most refractory metal tungsten alloys, such as 3%~15%'s tungsten, 25%~35% chromium, 45%~65% cobalt, and 0.5%~2.75% carbon, which are mainly used for strongly wearable parts, such as the valve of the aero engine, the working parts of the die hot cutting knife, turbine impeller, and excavating equipment. The surface coating of the plow.

     In aeronautical and rocket technology, and in other departments requiring high thermal strength of machine parts, engines and some instruments, tungsten and other alloys for molten metals (tantalum, niobium, molybdenum and rhenium) are used as hot materials.

     The tungsten - copper (10%~40%) and tungsten - silver alloys made by powder metallurgy of contact materials and high specific gravity alloys have good conductivity, thermal conductivity and wear resistance of tungsten. Therefore, it has become a very effective contact material for manufacturing switch parts, circuit breakers, spot welding electrodes and other working parts. The high specific gravity alloys of 90%~95%, 1%~6%, 1%~4%, and copper (~5%) are used to make gyro rotors, aircraft, balance hammers to control the rudder, radiation shields and baskets for radioisotopes.

     The tungsten - copper (10%~40%) and tungsten - silver alloys made by powder metallurgy of contact materials and high specific gravity alloys have good conductivity, thermal conductivity and wear resistance of tungsten. Therefore, it has become a very effective contact material for manufacturing switch parts, circuit breakers, spot welding electrodes and other working parts. The high specific gravity alloys of 90%~95%, 1%~6%, 1%~4%, and copper (~5%) are used to make gyro rotors, aircraft, balance hammers to control the rudder, radiation shields and baskets for radioisotopes.

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