A tantalum increase the yield of tungsten alloy plate processing molding process, including the following steps, raw materials mixing, the average particle size of 3 mu m ~ 5 microns of tantalum powder and the average particle size of 3 mu m tungsten powder as a raw material, and then both at a certain proportion of required to mix, and tantalum points and tungsten powder into the mixture to mix within the high energy ball mill get mixed powder. The invention of high-energy ball mill to mix of tantalum powder, to fully broken mix of tantalum tungsten billets, and homogeneous structure is obtained by screening for billet particle filtering of billet particles, organization of tantalum tungsten alloy plate distribution more uniform, improving tantalum tungsten alloy plate processing molding yield, at the same time, hot pressing is close-grained, organization of tantalum tungsten alloy plate mechanical properties be improved, The yield point of the tantalum-tungsten alloy plate was increased by three cold rolling steps, and the residual stress was eliminated by four annealing steps to avoid deformation and crack in future cutting.
Tantalum-tungsten alloy is a kind of alloy with tantalum as matrix and some tungsten element added. Although both tantalum and tungsten can infinite solid solution, but when the tungsten content in more than 12-14 at % at % alloy plastic will be significantly reduced, when tungsten content is low, tantalum tungsten alloy as the pure tantalum low-temperature plastic, and has high strength, resistance to oxidation and corrosion resistant ability, so the lower content of tungsten tantalum tungsten alloy is widely used in aviation, aerospace, chemical industry, nuclear industry and other fields.
The preparation of tantalum-tungsten alloy billet usually needs to go through several processes, such as mixing, pressing, sintering and smelting. However, the tantalum-tungsten alloy sheet produced by tantalum at present has uneven structure, large grain size and poor mechanical properties, resulting in a low yield.
The scope of protection of the invention is not limited herein. Any technical personnel who are familiar with the technical field shall be covered by the scope of protection of the invention if they substitute or change the technology disclosed by the invention according to the technical scheme and invention idea of the invention.
