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In theory, the chrome layer will not fade under most working conditions. The stability of chrome metal itself is extremely high, and the chromium oxide layer on its surface can effectively prevent the external environment from corroding the chrome layer. Therefore, the chrome layer can usually maintain its original luster and color for a long time and is not easy to fade.

The hardness of the chrome plating layer of industrial chrome-plated rollers is usually between 800 and 1000 Vickers hardness (HV). This hardness range depends on the specific conditions of the chrome plating process, including current density, temperature, plating solution composition, etc.

chrome-plated rollers are suitable for high-precision, high-load applications due to their high hardness, wear resistance and corrosion resistance, while rubber-laminated rollers are widely used in environments sensitive to surface pressure due to their softness, elasticity and material protection.

There are many methods for checking the thickness of chrome plating, which can be divided into two categories: non-destructive testing and destructive testing according to different equipment and occasions.

The process sequence of chrome-plated rollers: Raw material preparation Roller body processing 1. Rough processing 2. Finishing 3. Heat treatment Pretreatment 1. Cleaning 2. Pickling 3. Activation Electroplating process 1. Electroplating equipment preparation 2. Chrome plating solution preparation

Usually, industrial chrome-plated rollers are plated with a layer of chrome, and the thickness is adjusted according to the use requirements. Single-layer chrome plating can already provide quite strong wear resistance and corrosion resistance, which is suitable for most industrial applications.

During the electroplating process, if the thickness of the chrome layer is uneven, the weak part will become a stress concentration point, which is prone to cracks during use. This situation is particularly common at the edges or concave and convex parts of the roller.