The surface roughness of the galvanized sheet mainly affects the properties such as the adhesion of the coating. For products with different uses, the requirements for the roughness are different. The galvanized sheet used for automotive shells requires a relatively high surface roughness, which generally requires a Ra of 1.5 μm. As a color coated sheet, the product of a household electrical appliance requires a relatively low roughness, and the general requirement is to reach Ra 1.5 μm.
In the stable operation of the machine, the surface roughness of the galvanized sheet mainly depends on the roughness of the work roll of the finishing machine, and generally can reach about 60% of the surface roughness of the work roll. After the new work roll is put into use, Wuxi Schnorrance Materials Co., Ltd., with the extension of time, the roughness of the roll surface will be reduced due to wear, so when the production is scheduled, the roughness may be required to be produced first, and when worn Reproduce products with lower roughness requirements to a certain degree.
Appropriate roughness of the work roll surface is generally obtained by sandblasting, etching, electric engraving, etc.
In the stable operation of the machine, the surface roughness of the galvanized sheet mainly depends on the roughness of the work roll of the finishing machine, and generally can reach about 60% of the surface roughness of the work roll. After the new work roll is put into use, Wuxi Schnorrance Materials Co., Ltd., with the extension of time, the roughness of the roll surface will be reduced due to wear, so when the production is scheduled, the roughness may be required to be produced first, and when worn Reproduce products with lower roughness requirements to a certain degree.
Appropriate roughness of the work roll surface is generally obtained by sandblasting, etching, electric engraving, etc.
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