What is cold welding machine? What's the difference with ordinary welding?

Cold welding machine is a kind of electric welding machine. Cold welding machine and general electric welding machines have very good advantages: during welding, appropriate current and pulse time can be selected according to the thickness of the plate, and the heating temperature can be accurately controlled. But also instantly melts the workpiece. So the temperature is not high, and the workpiece to be welded will not overheat and deform.

1, cold welding machine has a wide range of applications. All kinds of steel (cast iron, cast steel) and aluminum (cast aluminum) can be repaired. It can also be used to strengthen the surface of cemented carbide. The length of solder can be used normally in the range of 10mm ~ 250mm, and it can also be bent to repair special bending parts. The matrix has no heating, deformation and undercut.

2. Stainless steel thin-wall welding machine is a scale for resistance welding, which is characterized by selecting appropriate current and pulse time according to the thickness of the plate and accurately controlling the heating temperature. But also instantly melts the workpiece. So the temperature is not high, and the workpiece to be welded will not overheat and deform.

3. The principle of the multifunctional cold welding machine is to use the charging capacitor to discharge in the period of 10-3 ~ 10- 1 second and in the ultra-short time of 10-6 ~ 10-5 seconds. The contact part between the electrode material and the workpiece will be instantly heated to 8000 C ~10000 C, and the molten metal in plasma state will be metallurgically transferred to the surface of the workpiece. The left figure 1 shows the schematic diagram and various characteristics of surfacing and coating. Area A is a coating or surfacing layer deposited on the surface of the workpiece, which is generated between the workpiece and the base metal.

4. Reasonable design and free adjustment. Different discharge frequencies can be selected according to different metal materials to achieve the best repair effect. Annealing, no need for re-heat treatment after repair. The influence of welding repair is minimal, and the welder overcomes the influence of ordinary argon arc welding on the periphery of the workpiece during welding repair. Even the machined surface of the workpiece without allowance can be repaired with confidence, and the repair accuracy is high: the thickness of surfacing varies from several microns to several millimeters, and it only needs to be polished, so the grinding welding strength is high; Because the material completely permeates the surface of the workpiece, a strong bonding force is generated. 6. Easy to carry: light weight (28-30 kg), 220V power supply, no working environment requirements.