Stripping device for preparing copper-plated tubes for air-conditioning compressor and stripping method thereof

Abstract

The invention relates to a stripping device for preparing copper-plated tubes for an air-conditioning compressor. According to the stripping device, a stripping pool is communicated with a stripping chemical liquid circulation system; stripping chemical liquid is circularly supplied and recovered between the stripping pool and the stripping chemical liquid circulation system in the stripping process; a base is arranged in the stripping pool in a mode that the height of the base is adjustable; multiple semi-finished tubes are vertically arranged on the base, and one to-be-stripped section of each tube faces down; the stripping height of the to-be-stripped section of each semi-finished tube is alpha1; the liquid level height of the stripping chemical liquid in the stripping pool is alpha2; the distance between a plane where the base is in contact with the semi-finished tubes and the bottom surface of the stripping pool is alpha3; and alpha1=alpha2-alpha3. The invention also discloses a method for stripping the copper-plated tubes for the air-conditioning compressor by utilizing the stripping device. The method comprises the following steps: chemically stripping, and locally stripping the semi-finished tubes. According to the invention, local stripping is finished by adopting a chipless machining mode, no scrap iron or burr is avoided, the machining processes are reduced, the production cost is effectively reduced, and the service life is prolonged.

Description

technical field [0001] The invention relates to the processing field of copper-plated pipes for air-conditioning compressors, in particular to a deplating device and a deplating method for preparing copper-plated pipes for air-conditioning compressors. . Background technique [0002] At present, the production process of copper-plated tubes for air-conditioning compressors is generally to perform full electroplating on the formed tube body, and then turn or grind one section of the copper-plated tube to remove the copper-plated layer on the surface, and the iron The surface of the pipe body is exposed again, so as to achieve the purpose of welding one end of the pipe body with the iron material or an interference tight fit seal with the cylinder, and welding the inner end of the compressor with the copper material, as disclosed in Chinese invention patent ZL201110389070.7. Although the structure can achieve the above purpose, there are some defects at the same time: 1) The ...

AI Technical Summary

Problems solved by technology

[0002] At present, the production process of copper-plated tubes for air-conditioning compressors is generally to perform full electroplating on the formed tube body, and then turn or grind one section of the copper-plated tube to remove the copper-plated layer on the surface, and the iron The surface of the pipe body is exposed again, so as to achieve the purpose of welding one end of the pipe body with the iron material or an interference tight fit seal with the cylinder, and welding the inner end of the compressor with the copper material, as disclosed in Chinese invention patent ZL201110389070.7. Although the structure can achieve the above purpose, there are some defects at the same time: 1) The step of turning the copper layer, otherwise the tube body will be covered with tiny iron powder, iron filings, burrs and other impurities, which will cause great trouble to the later cleaning , if the cleaning is not clean, the pipe body with residual impurities is directly installed on the compressor, which will cause the compressor to stall and seriously affect the work of the compressor; When the copper layer is cut off, the iron part is often cut off a little, resulting in a smaller thickness of the pipe body, a decrease in strength, and a decrease in service life; The manufacturing cost is high, and it is easy to produce poor processing, resulting in high scrap rate, and the surface of the tube body is damaged by multiple clamping of mechanical processing, which affects the assembly accuracy

Images