In the sprocking process of the sprocking machine equipment, if the steel coil is rolled in a loose state, then the internal layers of the steel coil will slide. In this way, it may lead to a variety of scratches on the surface of the steel plate, as well as scratches on the point of repeated friction.

In fact, in the operation process of the slabbing machine equipment, even the normally coiling steel coil will be scraped when it is coiling beyond the normal tension. According to the production experience to analyze, the first three conditions include:

The top, because the uncoiler setting is not reasonable formed by the abrasion. The first included conditions are: in the process of operating the senders, the uncoiler adds the reverse tension beyond the base material coiling tension, perhaps the lack of brake uncoiler, or the lack of pressure stop roll pressure uncoiler will cause the steel coil to relax, and then the attack of abrasion. In addition, when the coil is loosened, it will be tightened from head to head and then scratch. Once the uncoiler tension is too large, the steel plate is spread loose suddenly rolled tight, will also attack abrasion. So when the job is finished, we should take measures to reduce the brake force.

Second, because the winding machine is not set properly, and then the formation of the winding abrasion. After the splitter is aborted, there is a simple looseness in the process of relaunching. The loosening of the shear outer ring, the transverse dislocation of the steel coil when unwinding and so on will attack the abrasion. In addition, straightening shear, loose steel coil inserted into the mandrel from the beginning of the coiling will occur when the scratch.

The third condition is affected by the hand expansion and contraction of the seizure of the wound. In the situation of the lack of tension in the splicer copper winding lax winding, with the hand expansion and contraction device tenseness, dislocation of the winding and then the attack of abrasion. In addition, the lateral swinging and stacking of the steel strip in the looper will also scratch.