Blue-green fluorescence appears in sintered parts

Blue-green fluorescent spots appear on PTFE sintered parts under ultraviolet lamp. This problem is relatively common in sintering molding production and requires comprehensive analysis and solution from multiple aspects of material, process, and equipment.

(1) Temperature parameter aspect: Certain organic impurities or silicone oil contaminants fluoresce at sintering temperature, Temperature deviation directly affects the physicochemical state of the material and the reaction progress. (2) Material aspect: Fluctuations in raw material performance indicators or insufficient pretreatment affect molding quality. (3) Process aspect: Control deviation of key process parameters causes the '2079851475616104453 to deviate from optimal conditions. (4) Equipment aspect: Equipment precision and maintenance status affect the stable execution of process parameters.

(1) Implementation measure: Investigate and eliminate powder contamination sources, Develop a specific operation plan based on actual production conditions, and verify the implementation effect. (2) Process control: Use optical inspection to control the cleanliness of products, Establish an online monitoring mechanism, set upper and lower parameter limits, and implement alarm management. (3) Implementation measure: Store high-cleanliness-grade raw materials separately., Develop a specific operation plan based on actual production conditions, and verify the implementation effect. (4) Preventive measure: Establish sound process control standards and a quality inspection system, and regularly review process data for continuous optimization.

This problem requires comprehensive analysis from multiple dimensions of material, process, equipment, and operation, and should be solved by systematically optimizing process parameters and the quality control system.