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What is the cause of trachoma
writer：Wuxi Hongxinshun Metal Products Co., Ltd. Release time
What is the cause of trachoma? The following is our analysis.
1. During the welding process, the current of the welding gun is too small, and the capacitor time is too short. When the capacitor is not completely welded, it appears to be hardened outside the welding. So there are sand or bubbles that have not been welded.
2. When the strip steel enters the scimitar-shaped adjustment arc, it is not butted properly, so that the two sides of the strip are not tightly attached, so there is a lot of space between the butted strips.
3. When butt welding the strip steel, the rust or oxide scale on both sides of the steel strip was not cleaned up in time, which caused trachoma after welding.
4. The production equipment was not inspected and sorted out in time after finishing work. The dust on the workbench may be dirty and fall into the welding gap of the butt strip by mistake.
5. The temperature in the operating workshop is too low, or the humidity in the workshop is too humid at that time, which will affect the temperature and dryness of the soldering point.