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2) SMT patch processing production precautions
A certain type of machine has been mass-produced several times in the same manufacturer. The process and process are familiar. At some point, you should pay attention to the following items:
1. Test fixture confirmation: Confirm the test fixture and test accessories before production; collect the previous problem points;
2. Confirmation of special materials: confirmation of materials that have occurred abnormally before production, confirmation of a material;
3. Confirmation of the first piece: A. Make a simple understanding and test of the first piece, check the relevant first piece record; B. Check whether the problem before the problem occurs again, whether the hand is improved; C. Confirm the previous SMT patch processing flow and Whether the process needs improvement;
4. Analysis of defective products: Simple analysis of defective products, understanding of major adverse distributions and major adverse causes, and improvement as much as possible;
5. Information feedback: A.SMT patch processing production point feedback back to the biotechnology model responsible person, reminding attention; B. In-plant assembly problem point collection; feedback to the person in charge; request for improvement.