A Microwave Oven Magnetron Yttrium Rhenium Tungsten Electrode Preparation Process of The Invention and Innovation

Microwave oven magnetron rhenium tungsten electrode and preparation of yttrium process of the invention over the prior art , with the following innovations :

1, The alloys were prepared by the wet mixture , the yttrium , tungsten fully mixed to ensure uniformity of subsequent grains .

2, The alloy powder was purified using temperature programming process , taking advantage of the melting point of the impurity components sufficiently different makes gasification melting impurities , reducing the amount of impurities in the alloy powder to improve the material strength and ductility.

3 , With the second vertical melt , prior to crystallization of the alloy powder with a high temperature above 2000 ℃ to remove impurities in metals , reduce the impurities in the metal alloy powder content, improve the strength and ductility.

4,The alloy material for the cooling process using alumina powder insulation, the cooling process is slow , substantially reduce the stress of the material , thereby improving the strength of the alloy and plastic .

5 , Using a long process of drawing furnace , divided 3 temperature of the heating from low to high temperatures and then using a parabolic cooling process control , the purpose is to remove excessive stress due to metal
Large induced defects :

a, Deformation Poor ; b, Grain boundary Poor Adhesion ;

c, The deformation of poor stability thereby increasing the wire size and error , which also led to the rough material and ultra tolerances. Directly affect the yield and quality of materials , and now the drawing process can make the grain fiber uniformity within the product structure , seismic strengthening , re-processing performance, size tolerances .


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