Weld method for copper tube of air conditioner

Welding copper tubes of air conditioner is one of the skills that must be mastered in installing air conditioner. Its function is to connect the main air conditioner with the indoor unit and let the refrigerant flow. Next, we will introduce the welding method of copper tube for air conditioning.

First of all, get ready for work. Need some tools, such as electric soldering iron, welding agent, copper tube and so on. There are also different types of welding agents, which can be selected as needed. The copper tube should be cut with a suitable cutting tool.

Secondly, the copper tube is cut to a certain thickness along the length direction. This is to make the copper tube flat and easy to connect with the joint. Then, using copper welding wire, the welding agent is coated on the copper tube and the joint.

Then, the copper pipes and joints are heated by oxidizing flame moxibustion. When inserting the copper tube into the joint, pay attention to the angle so that the two sides are completely flush. If the copper tube and joint are uneven, too much sunlight will enter the copper tube, which will affect the efficiency of air conditioning.

Flux should be selected according to the diameter and length of copper tube. In general, the welding time should not be too long, about 2-3 seconds. However, it is suggested that after the welding place is cooled for a period of time, the redundant welding wire should be cut off with a shearing device. This can ensure that the copper pipe is welded firmly and will not explode.

Finally, cool the copper tube. In the process of cooling, do not clean the welding place with water or other liquids, but wipe it clean with a soft cloth.

The above are the detailed steps of welding air-conditioning copper tubes. This work requires practice and experience, diligence and patience, and at the same time, it needs to follow the safety operation rules to ensure that the welding results meet the expectations.