Corrosion evaluation method for scraped car disassembly

Abstract

The invention discloses a corrosion evaluation method for scraped car disassembly. The corrosion evaluation method comprises the following steps: (1) collecting basic information related to scraped car corrosion; (2) washing the scraped car, removing floating rust, mud ash and foreign matters on the surface of the scraped car, drying, and evaluating the corrosion state of the whole car before disassembly; (3) disassembling the scraped car, including pre-disassembling, final assembly disassembling and car body disassembling; and (4) carrying out corrosion rating on the disassembled metal finalassembly and the disassembled automobile body metal plate, and then carrying out corrosion evaluation, which comprises three aspects: the metal final assembly: corrosion type analysis, and anatomicalanalysis on parts with internal corrosion; vehicle body sheet metal: performing vehicle body manufacturing process corrosion evaluation, including electrophoretic film thickness, material, structure and manufacturing process; and testing: slicing the rusted area, and carrying out corrosion depth, corrosion area, corrosion morphology and XRD tests. Through qualitative corrosion evaluation and quantitative corrosion evaluation, reverse reference is provided for development and design of new products.

Description

technical field [0001] The invention belongs to the technical field of computer-aided design of automobiles, and in particular relates to a corrosion evaluation method for dismantling scrapped automobiles. Background technique [0002] Anti-corrosion of automobiles is a long-standing problem in the automobile industry. China has a vast territory and diverse corrosion environments. Complex climate environments such as hot and humid, cold, and plateau, and road corrosive media such as snowmelt and muddy water, lead to severe corrosion of cars, and even rust fractures and perforations lead to functional failures, which seriously affect the appearance of cars. And performance, it poses a serious challenge to the comprehensiveness of automobile anticorrosion. [0003] China produces millions of scrapped cars every year. Most of these cars are scrapped directly, and a few of them have been recycled, but no relevant research has been carried out before recycling and scrapping. Thi...

AI Technical Summary

Problems solved by technology

China has a vast territory and diverse corrosion environments. Complex climate environments such as hot and humid, cold, and plateau, and road corrosive media such as snowmelt and muddy water, lead to severe corrosion of cars, and even rust fractures and perforations lead to functional failures, which seriously affect the appearance of cars. and performance, it poses a serious challenge to the comprehensiveness of automobile anticorrosion

[0003] China produces millions of scrapped cars every year. Most of these cars are scrapped directly, and a few of them have been recycled, but no relevant research has been carried out before recycling and scrapping. This is a huge waste of resources

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