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Causes Of Bubbles Appearing When Welding Color-coated Plates

Nov 09, 2020

Color-coated boards sometimes have bubbles during welding due to external factors. This phenomenon will make the welding weak and affect the aesthetics. Therefore, we should try our best to avoid this situation during welding, which leads to this What is the cause of the phenomenon? Only by finding the cause can it be better solved. Let me explain to you.

1. If the surface of the welding seam of the color-coated plate is not cleaned, it is easy to cause the appearance of bubbles, such as the presence of oil, water and other ingredients. In this regard, we can solve this problem by cleaning the surface of the weld to be welded.

2. Impure shielding gas can also lead to the production of bubbles. For this, 99.99% argon can be used to deal with this problem.

3. If the end of the welding wire is exposed to the air, there will be bubbles. Therefore, we must keep the end of the welding wire under the protection of inert gas when welding the color-coated board.

The three methods introduced above can prevent bubbles from being generated during welding of color-coated plates. For bubbles that have already appeared, we can directly use an angle grinder to grind them away. You can refer to the content introduced in this article in the actual operation in the future, and I believe it can solve your problem well.