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Factors affecting the surface rust of stamped parts

Views: 0     Author: hbkaishi     Publish Time: 2024-07-06      Origin: hbkaishi

Factors affecting the surface rust of stamped parts

Environmental factors:

The parts stamped on rainy days did not rust, but on sunny days they rusted. Environmental factors can be ruled out.

Uneven oil film on the original plate:

The uneven oil film on the original plate is generally strip-shaped or elliptical along the length of the steel coil, which is inconsistent with the rust law of the part.

Steel plate material:

Rust still occurs after stamping with other steel coils, and the morphology and position do not change.

Adding oil before stamping: Adding oil to the steel plate before stamping still causes rust at this location, but the degree is greatly reduced.

Adding oil after stamping:

Immediately after stamping, the parts are re-oiled, and no rust occurs at this location.

Part surface morphology:

There is slight roughness at the rusted location.

The oil film at this location is destroyed during the stamping process, resulting in rust.


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