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.