来源：http://www.chinatvren.com/ 发布时间：2022-08-04 浏览次数：
There are many structural forms of cooler welding machine, which can be used in a wide range. It can complete all kinds of welding operations by cooperating with weldment displacement machinery. Do you know that the operators have some precautions when using the special machine for welding the cooler? Now, Shandong automatic welding equipment manufacturer will show you.
Features of special welding machine for cooler
① The welding fixture is usually a part of the secondary circuit of the welding power supply, so insulation and conduction are the problems to be paid attention to in the design.
② It is used for welding fixture, which mainly bears gravity welding, welding stress and clamping force. Some also bear the hammer during assembly, and the welding fixture also bears the forging force.
③ Welding fixture, the installation size of welding structure size increases, the weight increases, and the shape becomes complex, which increases the difficulty of fixture disassembly.
④ During welding, parts are heated or stretched or shortened by welding due to cooling. In order to reduce welding deformation, the fixture of some parts can be anti deformation or rigid clamping welding stress, and some parts are also allowed to stretch freely in a certain direction. Therefore, the welding fixture is not suitable for rigid clamping of all parts.
⑤ Since weldments are usually welded by multiple simple parts, and the assembly and positioning of these parts are carried out in turn in the welding fixture, their positioning and clamping are separated.
Matters needing attention when using a special welding machine for cooler
① Electric welding tongs cannot be used after being immersed in water and cooled after overheating;
② When loading and unloading acetylene cylinders or petroleum cylinders, pay attention to handle them with care, and do not throw, touch, slide, roll and other violent vibrations;
③ When carbon dioxide gas shielded welding is carried out, carbon dioxide gas shall be preheated for 15 minutes before operation;
④ The length of the secondary measuring line and ground wire of the welding machine shall not exceed 30 meters;
⑤ The no-load voltage of AC welding machine shall not exceed 80V;
⑥ After welding, cut off the power supply, separate the ground wire from the connecting wire, and ensure that the spark of molten slag is extinguished before leaving the site;
⑦ The length of the power line measured by the welder at one time shall not exceed 5 meters;
⑧ It is strictly forbidden to replace the ground wire with metal objects such as metal pipes, metal feet, tracks, structural reinforcement, etc.
This is what we should pay attention to when using the cooler welding machine. In order to be safe, we should pay more attention to the relevant operation and precautions. For more information, please visit our website http://www.chinatvren.com Consult and understand.