The appearance of gaps refers to the phenomenon that the welds are not bonded together. The length of the gaps is generally more than a few centimeters or even longer. The main reasons are as follows:(1) Pass wearAs the extrusion roll hole pattern wears, the hole pattern (R) size gradually becomes l

Sand-hole pipes are also a kind of quality accident caused by weld leakage, but their gaps are very small, some of them cannot be directly observed by human eyes, and must be found through testing equipment, so we call this kind of pipes sand-hole pipes. The main reasons for sand hole pipes are as f

First of all: in the process of use, we must strictly operate in accordance with the operating procedures in the instruction manual, let alone overload the machine and use it, and before complaining about the production, that is, the operation of the machine, we must check all aspects of the machine

The high-frequency welded pipe unit will be damaged during normal use, so you must take good care of it during use, otherwise the machine will be particularly difficult to use and the problem of jamming will occur. Check whether all parts of the machine can work normally and whether there is any fai