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It is not effective to improve the high temperature strength of tungsten simply by solid solution strengthening. However, on the basis of solid solution strengthening, dispersion (or precipitation) strengthening can greatly improve the high temperature strength, ThO2 and precipitation of HfC dispersion particles have the best strengthening effect. Both the w-hf-c and w-tho2 alloys……
Read More »Sintering process The sintering molding of tungsten steel is to press the powder into the blank, then heat it into the sintering furnace to a certain temperature (sintering temperature), and maintain a certain time (holding time), and then cool down, so as to obtain the required properties of tungsten steel material.
Read More »Tungsten steel, also known as cemented carbide, refers to sintered composites containing at least one metal carbide composition. Tungsten carbide, cobalt carbide, niobium carbide, titanium carbide and tantalum carbide are common components of tungsten steel.
Read More »Filament industry tungsten was first used to make incandescent filament. Colegi (W.D.Coolidge) of the United States in 1909 using tungsten powder pressing, remelting, rotary forging, wire drawing process to make tungsten wire, since then tungsten wire production has been rapid development.
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