Radiation-free multi-component rare earth tungsten electrode material and preparing method thereof

Abstract

The invention discloses a radiation-free multi-component rare earth tungsten electrode material and a preparing method thereof. The radiation-free multi-component rare earth tungsten electrode material contains lanthanum oxide, zirconia, yttrium oxide, lutecia, rhenium and tungsten. The mass percent of each rare earth oxide in the material is 0.5-1.5%, the mass percent of the total quantity of the rare earth oxide in the material is 2-3%, the mass percent of alloy element rhenium in the material is 1-4%, and the balance is tungsten. The preparing method for the radiation-free multi-component rare earth tungsten electrode material comprises the procedures of solution disposition, drying, reduction, isostatic cool pressing, sintering, vertical melting, medium frequency induction annealing, B202 rotary forging, B201 rotary forging, drawing, straightening, cutting, polishing and grinding. The prepared radiation-free multi-component rare earth tungsten electrode material is easy to machine and better in use performances.

Description

technical field [0001] The invention relates to a tungsten electrode material and a preparation method thereof, in particular to a radiation-free multi-element composite rare earth tungsten electrode material and a preparation method thereof. Background technique [0002] Non-melting electrode argon arc welding is also called tungsten argon arc welding or tungsten inert gas shielded welding, that is, under the protection of inert gas, an arc welding method is used to melt the base metal and filler metal by using the arc generated between the workpiece and the workpiece. . The non-melting tungsten electrode plays the role of emitting electrons to generate an arc, and the filler wire is fed from one side, and the filler metal and the workpiece are fused together under the action of the arc heat to form a weld. Tungsten has a high melting point, strong electron emission capability, low electron work function, high elastic modulus, and low vapor pressure, so it has been used as...

AI Technical Summary

Problems solved by technology

Whether it is adding a single oxide, or adding a ternary or multi-element oxide, it is a composite effect of components from the perspective of materials science. Each oxide particle exists in a separate phase in the tungsten matrix, and there is no tungsten involved. Alloying, still can not give full play to the performance, now there is an urgent need for a tungsten electrode material that is non-radiative, easy to process and has better performance

Images