What factors generally affect the quality of electro galvanizing? On this point, let's introduce the manufacturers of roll hanging plating production line and roll galvanizing production line to you!
The electroplating covering technology of electro galvanizing includes bath plating, roll plating, automatic plating and continuous plating. The main factors that can affect the results of electro galvanizing are:
1. The content of metallic zinc. If the content of metal zinc is too much, the bright field will become narrow, it is easy to get a thicker electroplating layer, and the content of iron in the electroplating layer will be reduced; If the content of metal zinc is too small, the bright field will become wide and can meet the required thickness demand. For a long time, the content of iron in the coating will become more.
2. Vulnerable to sodium hydroxide. If it contains more sodium hydroxide, it is easy to burn when operating at high temperature; If it contains less sodium hydroxide, the dispersion capacity will become worse.
3. Affected by metal iron content. If the content of metallic iron element is more, the content of iron element in the coating will be higher, and the passivation film is not bright; If the content of metallic iron is relatively small, the content of iron in the electrodeposited coating will be relatively small, the corrosion resistance will be reduced, and the color will be olive.
4. Affected by brightener. If zf-iooa is too high, the brittleness of galvanized coating will become larger; If the content is too small, there will be no coating in the low current range and the passivation color is uneven. In addition to the four influencing factors mentioned above, the results of electro galvanizing will also be affected by temperature and cathode movement. These factors must be paid attention to in the actual operation process.
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