Because customers have different requirements for stainless steel pipes, the process requirements of stainless steel pipe making machine are also different when producing welded pipes. Is it necessary to add protective gas during the welding process of stainless steel pipe making machine? This depends on the needs of customers. Different requirements lead to different results.

If protective gas needs to be added during pipe welding of stainless steel pipe making machine, nitrogen is usually added. Argon needs to be added to the welded pipe with good conditions and high requirements. It is always necessary to add inert gas. The purpose of this is to prevent the oxidation reaction with oxygen in the air during welding, resulting in the decline of weld quality, Unable to meet or meet the specific requirements of the pipe. The protective gas is divided into internal gas protection and external gas protection. The internal gas protection is the protective gas flowing into the welded pipe to protect the internal weld. The external gas protection is the protective gas outside the welded pipe. When the external gas protection is adopted, it is necessary to weld and seal the protective box, so that the welding space can work without oxygen as much as possible.

If the welded pipe is protected by internal and external protective gas, generally, as long as the conditions are not very harsh, it can meet the welding requirements. The welding effect is very strict. At present, it is also done in this way. It seems that there is no particularly good way. If the stainless steel pipe making machine wants to make good pipes, it is a good choice to add protective gas in the process of pipe welding.

Key words:stainless steel pipe making machine

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