Screws produced by screw manufacturers are likely to cause screw quality problems due to unreasonable production. In production, many screw quality problems may be found on delivery. Now let us talk about the quality problems that the screws often encounter and what causes the quality problems. Finally, we propose some solutions.
1. The screw head is deformed and the head is snoring. The possible cause is a poor flush installation of the screw die and improper adjustment.
2. The head of the screw is not round. The reason is that the choice of a die of the screw die is improper or the punching die is not full.
3. Screws have burrs or burrs. The reason for this is a poor stamping, which is mainly caused by excessive clearance between punch and die holes or short punches.
4. The head of the screw is cracked and the head of the screw is cracked. The reason may be that the quality of the screw wire itself is inconvenient. Therefore, before the heading of this screw wire, it must be checked by the quality department, and the potion should be tapped. Especially the stainless steel screw wire, to check that it is stainless steel 201, that is 304 stainless steel. It may also be due to mistakes in the use of a die or die (for example, a die with a hexagonal head for a pan head) and the failure of the viscosity of the lubricant.