The current will crack...... The welding surface is free of impurities...
Temperature problem. Try preheating before welding and heat preservation after welding
Causes of weld joint cracking in argon arc welding at 304:1, no argon or gas leakage will lead to welding when the welding seam cracks, check the use of welding torch leak, do a good job of gas sealing measures.2, and 304 material problems, some small factories to do more impurities, welding process can see impurities, welding can obviously see the middle crack. Choose pure 304 wire, more soft is true. (like a wire), otherwise.3, welding angle is smaller and the workpiece is 45 degrees, so that more easily welding workpiece4, secondly, when welding the workpiece, the welding machine should be preheated first, the temperature is not enough, it is easy to weld cracks and heat preservation after welding.Technique and essentials of double sided welding of argon arc weldingOne side welding double face forming technology is an operation technique with great difficulty in welding electrode. It is necessary to master the operation essentials and techniques to guarantee the welding quality and quality.To arc welding, for example, to master welding arc welding, single-sided welding double-sided forming operation technology, must master the "five main points", specific content: see, listen, accurate, short, control. Should also learn to "Six Skills" specific content: solid, start, transport, arc, joint, closing.
