Ppgi Steel Sheet Tin free steel sheet coil Electrolytic chromic acid treatment – Lu

Introduction

Chrome plated coil refers to a steel plate plated with a layer of chromium. To prevent corrosion of the surface of the steel plate and prolong its service life, a layer of metal chromium is coated on the surface of the steel plate. Chrome plating is a frequently used and effective anti-corrosion method. The concentration of chromium ions in the electrolyte needs to be maintained by regularly adding chromium compounds to the plating solution. The structure of the chromium coil has four layers: a steel substrate, a metal chromium layer, a hydrated chromium oxide layer and an oil film. Since the substrate is the same, the mechanical properties are the same as the tin plate, The chromium-plated coil adopts low-carbon structural thin steel plate, but the chromium-plated layer is very thin (<1.3μm), and the process is the same as that of tin-plated plate.etc.

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