A cleaning method for high temperature components

Abstract

The invention discloses a cleaning method for a high-temperature component. The cleaning method comprises the following steps: first, performing high-temperature rinsing on the high-temperature component; second, performing ultrasonic cleaning on the component which is subjected to the high-temperature rinsing; third, rinsing the component which is subjected to the ultrasonic cleaning in the second step by water; fourth, performing rust prevention treatment on the component which is rinsed by the water in the third step, and then performing conventional high-temperature-resistant paint spraying on the component by using high-temperature-resistant paint. By adopting the cleaning method disclosed by the invention, oil and impurities on the surface of the high-temperature component can be removed thoroughly; the paint spraying quality after the paint is sprayed on the component can be improved remarkably; the integrity and the attractiveness of the appearance are maintained; moreover, the phenomena of discoloring, cracking, bubbling, falling and the like of a paint film are avoided; meanwhile, the high-temperature resistance and the rust prevention performance of the paint film after the paint is sprayed on the component are improved.

Description

technical field [0001] The invention relates to a cleaning method for high-temperature parts, in particular to a cleaning method for high-temperature parts such as engine exhaust pipes and exhaust pipes before spraying high-temperature-resistant paint. Background technique [0002] The high-temperature parts used in the industrial field today, in order to enhance their high-temperature resistance and anti-rust performance, usually spray high-temperature-resistant paint on the surface of the parts, and the parts must be cleaned before spraying the high-temperature-resistant paint to improve the resistance The adhesion of high-temperature paint on parts can increase the high-temperature resistance and anti-rust performance of the paint film. Therefore, the cleaning method before spraying high-temperature paint plays a key role in improving the performance of high-temperature parts coatings. However, in the industrial field, the traditional cleaning method for high-temperature ...

AI Technical Summary

Problems solved by technology

[0003] But adopt above-mentioned traditional cleaning method to have certain shortcoming

Since the surface of parts such as exhaust pipes and exhaust pipes is a casting surface, the surface roughness is poor and uneven, and the traditional cleaning process can only clean the oil and impurities on the outer layer of the parts, and cannot clean the rough parts. Deep cleaning of the surface

Therefore, the parts cleaned by the traditional cleaning method are not cleaned thoroughly, and after the high-temperature resistant paint is sprayed after cleaning, the quality of the sprayed paint is poor, the adhesion of the paint film is poor, and the paint film appears discolored and cracked after the test machine , blistering, falling off, etc., and the high temperature resistance and antirust performance cannot meet the requirements

Images