A key point in the quality of a welded pipe or its evaluation is whether the welding quality of the welded pipe meets the requirements or the welding standards. And if you want to produce a beautiful welded pipe, it is not technically simple. Next, let's take a look at the quality factors that affect the welding of welded pipes.

1、Way of Welding

Welded pipes are divided into spiral welded pipes and longitudinal welded pipes. Here we talk about longitudinal welded pipes, because our pipe welding equipment and welded pipe molds are used to produce this, and we have the right to speak. Welding methods for longitudinal welded pipes are divided into two types: high frequency welding and argon arc welding. Different welding methods have different welding effects;

2、The Coordination of TIG Gas

TIG argon arc welding requires the use of argon. The purity of argon is one of the affecting factors. In order to improve the welding effect, nitrogen is usually used for welding protection to reduce the oxidation reaction with oxygen in the air during welding. It is also an important premise to effectively isolate the air;

3、Cleanliness of the Steel Belt

Our longitudinal welded pipe is formed by coil welding under the joint action of pipe welding machinery and pipe making moulds. If there are impurities or dust on the surface of the steel belt, there will be situations that affect the welding effect, and even welding through may occur;

4、Control of the Welding Current

Different welded pipes use different pipe welding equipment and welders. The current of the welder directly determines whether the steel belt can be complete penetration. When the current is too large, the steel strip is welded through. When the current is too small, the steel belt is not penetrated. Adjust and control the current, which is also a science;

5、Control of Welding Position

Because the welded pipe is welded from the steel belt, the steel belt may be displaced in the pipe welding mold. The position of the welding torch is generally fixed, so how to keep the welding torch always directly above the weld of the steel belt is also one of the influencing factors.

There are still many factors that affect the welding quality of welded pipes. That's it for today. If you want to know more, remember to follow us.