Reasons for Bubble Phenomenon in Color coated Plate Welding

Bubbles sometimes appear during the welding of color coated plates due to external factors. This phenomenon will make the welding unstable and also affect the aesthetic degree. So we should try to avoid this situation when welding. What is the cause of this phenomenon? Only by finding the reason can we solve it better. Now let's explain it to you.


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


2. The impure shielding gas will also cause bubbles. 99.99% argon can be used to solve this problem.


3. If the end of the welding wire is exposed to the air, bubbles will also appear. Therefore, when welding the color coated plate, we should keep the end of the welding wire under the protection of inert gas.


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