Certified PEX Compression Fitting

Introduction：

PEX Compression Fitting refers to a type of pipe connection device that utilizes a metal compression sleeve to securely connect PEX pipes.

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When welding copper bushing, it is necessary to pay attention to the following key technical parameters to ensure the quality and stability of welding:

Welding voltage and current:

The selection of welding voltage and current should be determined according to the material, specification and thickness of the copper bushing. The right voltage and current can ensure the depth and width of the welding, thus ensuring the strength and tightness of the welded joint.

In the case of welding without wire filling, it may be necessary to use a larger current to form a stable weld pool, but care should be taken to avoid problems such as unfilled pits, welding holes or serious burning of the outer edge of the brass due to excessive current.

Welding speed and interoperability:

The control of welding speed has an important effect on welding quality. Too fast welding speed may lead to inadequate welding, while too slow welding speed may lead to overheating and deformation.
Interoperability refers to the uniform distribution of heat and materials during the welding process, and it is necessary to ensure that the heat transfer and material flow are uniform during the welding process to avoid defects such as pores and slag inclusion.

Welding gas type and flow control:

In the welding process, it is necessary to use protective gases (such as argon) to prevent the welding area from being polluted by harmful gases such as oxygen and nitrogen in the air.
The control of gas flow is also very important, too small flow may lead to poor protection effect, and too large flow may waste gas and affect welding stability.

Preheating and temperature control:

For some welding processes that require preheating, the selection of preheating temperature and time should be determined according to factors such as the material and thickness of the copper bushing.
Preheating can reduce the temperature gradient of the welding area, reduce stress and deformation, and improve the welding quality.

Welding torch Angle and tungsten electrode parameters:

The Angle of the torch (the Angle to the horizontal direction) should be selected to ensure that the welding flame can adequately cover the welding area.
Parameters such as the extension length of the tungsten electrode, the distance between the tungsten tip and the outer wall of the tube and the height of the tungsten electrode should also be determined according to the specific welding conditions to ensure the stability and quality of the welding.

Electrode selection:

For the welding of copper and copper, silver electrodes containing no silver or 5% silver should be selected, and no flux should be used.
For the welding of other materials, the appropriate electrode should be selected according to its technical instructions or requirements.

Insert depth and gap between pipe joint and copper pipe:

The control of insertion depth and clearance also has an important effect on welding quality. Too small a gap may lead to inadequate welding, while too large a gap may increase the difficulty of welding and the risk of defects.

To sum up, several key technical parameters need to be considered comprehensively when welding copper bushing to ensure the quality and stability of welding. In actual operation, it is also necessary to flexibly adjust and optimize according to the specific situation.

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