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Causes and Countermeasures of Common Quality Defects in Color Coated Sheets

May,19,2021 << Return list

Color coated plate are unavoidably bumped during production, handling and use, which will cause damage to the product and affect normal use. In order to ensure the normal use of the product, here is a brief introduction to the cause and solution of the scratch on the surface of the color coated plate.

Surface scratches are a kind of product surface defects during the production of color coated plates. It not only affects the appearance of the color coated products, but also reduces the corrosion resistance of the scratched color-coated products. According to the source, it can be divided into raw material scratches and production process scratches.

1. The surface of the raw material is scratched

The scratch on the surface of the raw material refers to the quality defect of the substrate during the production of galvanizing. When using scratched substrates to produce color-coated panels, it is easy to produce color difference or even miss-coating quality defects on the surface of the color-coated panels produced.

Specific solution: The control measures are to check the production quality in the previous process and prevent the raw substrates with scratches from entering the factory.

Color coated plate