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Billet production methods of preparation of molybdenum tungsten alloy powder metallurgy, vacuum arc melting and vacuum melting three electron bombardment method. The most widely used in powder metallurgy method, because the process is simple and can get a fine grain size of the alloy billets and is conducive to the plastic processing. Powder metallurgy main process is: molybdenum powder and tungsten powder mechanically mixed in proportion; through mechanical or isostatic press machine pressed into blanks; then pass hydrogen in high-temperature sintering furnace sintered alloy billets. With increasing sintering temperature and to improve the content of tungsten in the range between 2150 ~ 2300 ℃. Finally sintered billets rolled or forged timber. 

 

Molybdenum and tungsten alloys can be used in more than molybdenum or molybdenum alloy higher temperatures. Such as in the production of refractory ceramic fiber refractory furnace waves break as molybdenum tungsten alloy electrode, orifice and thimble parts, its life is much longer than that of pure molybdenum metal products. Mo a 30W higher than pure molybdenum anti-erosion performance liquid zinc, used in some parts of zinc liquid temperature corrosion pipe, pump rotors zinc and zinc smelting furnace. Due to the high melting point of tungsten molybdenum alloy, anti-erosion resistance and flame erosion of solid particles is good, can also be used for solid rocket motor shield gas rudder and other parts. Common nominal composition of molybdenum and tungsten alloys are: Mo a 30W, Mo Mo a 50W and a 85W and so on. Molybdenum tungsten alloy can be seen as a transition between tungsten molybdenum alloy. Therefore, the alloy can be applied in between the molybdenum and tungsten wide temperature range. 

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