ã€China Aluminum Network】 We welders need to know some things when they are doing aluminum tube welding. 1. The welding rod cannot be heated by the welding torch and then pick up the welding powder because the melting point of the electrode is too low.
2. The welding one-time successful effect is better, because the melting point of aluminum tube cutting tool is too low, the second reheat, the aluminum tube is easily deformed.
3. The inner towel must be placed with a wet towel to protect it. Because the welding space is very small, it is important to pay attention to the protection of the refrigerator.
4. The torch flame must not be too long and must be heated with a micro-fire, otherwise the dispersant aluminum tube can easily melt.
5. After the welding is completed, wait for the special slurry of nylon filament to cool the tube for two or three minutes before it contacts the cement reservoir. Otherwise, the solder joint is easy to leak.
6. The electrode must be evenly applied with flux to ensure the quality of the solder joint.
7. The welding time can not be too long, because the melting point is too low for too long time easily lead to melting or thinning of the aluminum tube wall, pressure can easily leak.
8. The welding rod cannot be used to heat the welding torch first, because the melting point of the welding rod is too low.
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