香港正牌挂牌玄机图

Air conditioning in the use of the process of failure is a common thing, air conditioning pipe is composed of air conditioning refrigeration piping and drainage pipeline essential things. When the air conditioning failure, maintenance workers will be the first to check whether the 2 pipelines, because the 2 pipe system is the most widely used in the air conditioning, but also the largest. Said air-conditioning pipe, repair welding can not mention the air-conditioning pipe parts. So what are the points of attention in the welding of the copper pipe when the air conditioning copper pipe is in trouble?

Welding and need to prepare some welding and related process, such as welding electrodes, welding fuel use is generally natural gas or butane, welding using the auxiliary gas oxygen and welding torch.

When these things are ready, you can start the welding operation, welding time to note that the operation of the cylinder, the cylinder must be upright, oxygen bottles and natural gas cylinders from the distance to an open flame is greater than 5 meters, this is a safe distance. Torch and cylinder connection method is correct, brass and copper pieces directly to maintain a certain distance, at the time of the operation must wear protective glasses, in welding field must be put fire fighting equipment, welding note must maintain a smooth ventilation.