the spiral weld defects

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The solenoid in the welding process may occur welding defects, so that the welding defects affect the quality of the solenoid, resulting in reduced service life of the spiral tube, or can not be used.
Under normal circumstan ces, the solenoid of weld defects and porosity, undercut and crack phenomena.steel clip

The helical tube bubble defects: conducting spiral welded in the center of the weld bead, there will be the situation of bubble defects, will produce this situation? The main reason is that the form of bubbles of hydrogen in the welding process is residue inside the metal. How to solve this failure? Welding process, we need to clear weld the inside of the oil, water and other ingredients, but also need good drying and removing moisture, so that hydrogen does not remain inside the weld . Increasing the welding current in the welding process and the generation of the bubble can be avoided yet.stainless steel tube clamps

The spiral tube undercut: v-shaped groove weld edge, and along the weld centerline When said undercut. Usu ally undercut is inappropriate because of the current, voltage and welding speed, therefore, the need to control the welding process good speed, so as to effectively avoid the biting edge phenomenon.steel pipe clamp

Spiral crack: spiral cracks may be because of the direction of the spiral weld problems, in order to effectively avoid the spiral cracks in the welding process, it is necessary to strictly in accordance with the welding process to operate the job.