Xinhengjie tell you: what are the reasons why defects will appear on the surface of the screws?

In the metal manufacturing industry, for the manufacturing surface requirements are very high, some are a little defective is not possible, there are provisions and requirements for its production, Xin Hengjie is such a product, so what are the reasons for defects in the surface of the screw?

  Head link: 1. eccentric, this failure is usually a problem with the installation of the second punch or is the mechanical adjustment error; 2. crooked head, such a problem is the most headache for us, a punch installation error, unfavorable adjustment; 3. head is not round, it must be a problem with our punching and grinding tools; 4. cracks, double layer, that is, the molding is our work is not done; 5. hairy edge, in addition to The problem of forming may also be the fine seam of the punching and grinding tool is not well mastered; 6. Cracking of the head, which is an indication that we have made a mistake in the selection of materials. 

 The process of forming teeth: 1. processing cracks, in addition to the problem of adjustment, there are problems with the teeth plate; 2. fire, the spacing is too large, the time is not well mastered; 3. crooked tail or broken tail, debugging machinery is too tight or too loose, such operations are problematic; 4. crooked rod or rough bottom of the teeth, we are worth to see if the problem is the correction or the distance between the teeth is not well adjusted.