Liquid phase plasma surface cleaning method for tungsten-rhenium wire

Abstract

The invention discloses a liquid phase plasma surface cleaning method for a tungsten-rhenium wire. Equipment comprises a control power supply, an output power supply, a cleaning tank, a first electrode and a second electrode. According to the liquid phase plasma surface cleaning method, the tungsten-rhenium wire is taken as the first electrode, the tungsten-rhenium wire is matched with the second electrode and a neutral salt cleaning solution, plasma can be produced on the surface of the tungsten-rhenium wire after electrification, ultrasonic oscillation is taken as assistance for removing greasy dirt and impurities on the surfaces of parts, and the liquid phase plasma surface cleaning method has the characteristics of thorough and complete cleaning and bright and tidy smooth; the cleaning solution selects a sodium bicarbonate solution which does not contain acid and alkali, the treatment of the waste solution is not required, and the harm to an environment can also be avoided; and the tungsten-rhenium wire is rolled up for batch cleaning, the cleaning quantity is large, and the cleaning efficiency is high.

Description

Technical field [0001] The invention belongs to the technical field of metal cleaning, and specifically relates to a liquid-phase plasma surface cleaning method of tungsten rhenium wire. Background technique [0002] As a commonly used electric light source, tungsten wire becomes very brittle after being recrystallized after high temperature use, and it is very easy to break under impact or vibration. In some electric light source products that require high reliability, in order to prevent the filament from breaking, rhenium is often added to the doped tungsten wire, called tungsten rhenium wire. The alloy contains 1% to 5% (mass) of rhenium. Add silicon, aluminum, and potassium to improve the high temperature performance of the material. It can reduce the brittle transition temperature of tungsten to room temperature or below. Tungsten rhenium wire is currently used mainly in the following areas: [0003] (1) Production of tungsten filament lamps and chromatographic heat sensit...

AI Technical Summary

Problems solved by technology

Judging from the current domestic cleaning technology, pickling or alkaline cleaning is mainly used, coupled with ultrasonic composite cleaning. This cleaning technology cannot clean the surface brightly and cleanly enough, and the waste liquid will also bring environmental pollution and other problems.