Copper tubes are commonly used in heat exchange equipment, and the cryogenic pipelines in oxygen production equipment can also be used in copper tubes. Today, the editor will explain to you the technological advantages, welding and connection firmness of copper pipes!

Process advantages of copper tube

1. Phosphorus deoxidized copper tube. Advantages of smelting and casting process: use power frequency cored induction electric furnace for smelting. At high temperature, pure copper has strong gas absorption. When smelting, the gas source should be minimized, and calcined charcoal is used as a flux, and phosphorus can also be used as a deoxidizer , And the casting process should be stopped under nitrogen maintenance or cover the soot; the advantages of forming performance: it has excellent cold and hot processing performance, can stop fine blanking, stretching, extrusion, deep drawing, bending and spinning, etc.; welding performance Advantages: It is easy to weld brazing and gas maintenance welding, but it is not suitable to stop resistance butt seam welding.

2. Pure copper tube. Melting and casting process advantages: adopt reverberatory furnace melting or power frequency cored induction furnace smelting; forming performance advantages: have excellent cold and hot processing performance, and can be processed by various traditional processing technologies, such as drawing, rolling, deep Welding performance advantages: easy to solder and braze, and can also stop gas maintenance welding, flash welding, electron beam welding and gas welding.

Welding of red copper pipes and how to improve their service life

The welding steps of red copper pipes are roughly the same as those of copper pipes. The difference is that the welding rod used for welding red copper pipes is required, and after the welding rod used meets the requirements, it also needs flux to assist. When the copper pipe is welded, the flame used is a carbonization flame. The welding sequence is as follows: first apply the flux to the position that needs to be soldered, and then heat; after heating, the flux has melted into a liquid, and at this time, the preheated electrode can be immediately placed at the solder joint.

In addition, taking the copper tube heat exchanger as an example, the general use time of the heat exchanger is 2 months. But if you want the copper pipe to live longer, you need professional equipment maintenance personnel to replace or correct the lead rod, adjust and replace the guide rail and the roller in time.

The connection firmness of the copper pipe

Nowadays, there are many kinds of pipes on the market, and the interface fittings are mainly copper pipes. Even if copper fittings are not required for some pipes, there is still a fitting where it interfaces with the faucet. However, it should be noted that if copper pipe fittings are connected to other pipes, the physical and mechanical properties of the pipes and fittings will be different due to the different materials of the pipes. Therefore, the firmness of the connection between the copper tube and the copper fittings will be greatly enhanced.