There are many factors that affect the quality of a pro […]
There are many factors that affect the quality of a product, but the reason for the problem is different for each different component, so we can't say that it is directly determined that it is a factor affecting the quality, such as a small screw. The quality reasons for the screw head and the tail are different. To solve the problem, the first thing is to find the factors that cause the problem. So, let's take a look at the reasons that affect the quality of the screw head.
1. The head of the screw is not round. The reason is that the selection of the die of the screw die is not proper or the punching is not full enough.
2. The screws have burrs or burrs. The reason is that the die is poorly formed, mainly because 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 smashed. The reason is that the installation of the screw mold is poor and the adjustment is not proper.
4. The screw head is cracked and the screw head has cracks. The reason may be that the quality of the screw wire itself is problematic, so the screw wire must be inspected by the quality department before starting the test. Especially for stainless steel screw wire, it is necessary to check out that it is stainless steel 201, which is stainless steel 304. It is also possible that either a die is used or not, and the viscosity of the lubricant is invalid.