A kind of surface treatment method of multi-needle glass-sealed optoelectronic tube case

Abstract

The invention discloses a surface treatment method for a multi-needle glass-sealed optoelectronic tube shell. First, an alkaline solution is used to soften the metal oxide layer on the surface of a workpiece to be treated, and after softening, an acidic solution is used to neutralize the alkalinity of the surface of the workpiece to be treated. The solution uses the sandblasting process to remove the softened metal oxide layer on the surface of the workpiece to be treated, which can effectively avoid scratching the surface of the workpiece to be treated, and then through ultrasonic and electrochemical polishing treatment, effectively and uniformly remove the oxide layer on the surface of the stainless steel shell At the same time, it is ensured that the glass surface can still maintain luster after the sandblasting is completed. The surface treatment of the multi-pin glass-sealed optoelectronic tube shell through the process of the present invention can effectively deal with the oxide skin on the surface of the tube shell, so that the surface of the tube shell can produce a mirror effect. , and does not damage the glass surface and the size of the entire device, has little harm to the environment and human body, and is suitable for large-scale industrial production.

Description

Technical field [0001] The present invention belongs to the surface treatment process of the glass sealing electronic tube shell, which involves a multi -needle glass sealing light electronic tube shell surface treatment method. Background technique [0002] Optical tube shells have a pivotal role in the development of optoelectronic technology. With the increasing development of optoelectronic application technology in the new century, the use of optoelectronic tube shells is increasing. The optoelectronic tube shell is a product with a high -tech and long use cycle, and has strict requirements on its quality and appearance during the preparation process. The production process of optoelectronic tube shells is more complicated. The materials often use stainless steel, corrosion -resistant alloy, high -temperature alloy, etc., and packaged through glass sealing. The substrate material will generate a large amount of scratches and polishing marks on the surface of the substrate du...

AI Technical Summary

Problems solved by technology

During the mechanical processing of the base material, a large number of scratches and polishing marks will be generated on the surface of the base material. At the same time, a large number of oxides will be generated on the surface of the base material during the high-temperature sealing process. These defects will affect the use of the shell. life, reducing the corrosion resistance of the shell, while the appearance of the shell is not beautiful

[0003] For the above-mentioned defects, although the existing treatment process can remove the surface defects and scale of the stainless steel substrate to a certain extent, a large amount of highly volatile HF will be used in the treatment process, which will cause damage to the operator and the environment. At the same time, the glass surface and the wire end will be damaged during the processing.

Patent CN 103132128 B discloses a stainless steel electrochemical polishing solution and its use method. The method uses electrochemical polishing to treat the surface of the stainless steel shell, and removes the burrs on the shell surface through the tip discharge effect, but the method takes a long time to process the workpiece , the processing is not uniform, which will have a negative impact on the key dimensions of the entire shell during the processing, making the wire end round and increasing the size error