There are many factors that affect the quality of a pro […]
There are many factors that affect the quality of a product, but the cause of the problem is different for each different component, so we cannot say that it is directly determined by a factor, such as a small screw The quality of the screw head and tail are different. We have to solve the problem, the first thing is to find the factors that cause the problem. So, let's find out what causes the quality of the screw head?
1. The head of the screw is not round. The reason is that the choice of a die for the screw mold is not appropriate or the full shape of the die is not sufficient.
2. The screw has burrs or burrs. The reason is that the forming of a punch is bad, which is mainly caused by the gap between the punch and the die hole is too large or the punch is too short.
3. The head of the screw is crooked. The reason for this is the poor installation of the screw mold and the incorrect adjustment of the machine.
4. The screw head is cracked, and the screw head is cracked. The reason may be that the quality of the screw wire itself is defective, so before the screw wire is headed, it must be inspected by the quality department and used with a potion. Especially for stainless steel screw wire, it is necessary to check that it is stainless steel 201 and that is stainless steel 304. It may also be due to the wrong use of a die and the failure of the viscosity of the lubricant.