Method and device for treating surface oxide of tungsten material at normal temperature

Abstract

The invention discloses a method for treating a surface oxide of a tungsten material at normal temperature. The method sequentially comprises the following steps of: preparing a soaking solution by ammonia water and oxydol at a mass volume percentage of (9:1)-(5:5); soaking the tungsten material to be treated in the soaking solution for 3-12h; taking out the soaked tungsten material and cleaning in clear water; and removing water on the surface of the treated tungsten material. The device for treating the surface oxide of the tungsten material at the normal temperature comprises a soaking tank, a cover plate and a supporting plate, wherein the soaking tank is of a reverse circular truncated cone structure with a larger upper part and a small lower part, the supporting plate is arranged at a middle horizontal position of the soaking tank and is provided with an axial through hole, a liquid outlet and a valve are arranged at the bottom of the soaking tank, and an observation window is arranged on the wall of the soaking tank. According to the method and device for treating the surface oxide of the tungsten material at normal temperature, disclosed by the invention, on the premise of ensuring an effect of removing the surface oxide, the size precision of following tungsten material treatment is further ensured.

Description

technical field [0001] The invention relates to the treatment of oxides on the surface of tungsten materials, in particular to a method and a device for treating oxides on the surface of tungsten materials at normal temperature. Background technique [0002] Due to the characteristics of tungsten material itself, its hardness is very high, and the plastic-brittle transition temperature is relatively high, so tungsten material processing is often a kind of thermal processing. During the thermal processing of tungsten materials, oxides are easily produced on the surface, which is a mixed oxide mainly composed of tungsten trioxide and tungsten dioxide. It affects the use effect and surface quality of tungsten materials, so it must be removed in time. The usual treatment method is to put the tungsten material into the molten alkali. However, this treatment method keeps the tungsten material in an environment of 500°C, and the processed tungsten material is prone to processing s...

AI Technical Summary

Problems solved by technology

However, this treatment method keeps the tungsten material in an environment of 500°C, and the processed tungsten material is prone to processing springback in this temperature environment, which greatly affects the processing dimensional accuracy of the tungsten material.

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