Polymer degradation catalysis during metal powder-polymer co-sintering

Degradation accelerates during co-sintering of PTFE containing metal fillers (such as copper powder). This problem is relatively common in sintering molding production and requires comprehensive analysis and solution from multiple aspects of material, process, and equipment.

(1) Process factor: Certain metals (especially copper, This factor affects the '2079851475616104453 and final quality of the product. (2) Material stability aspect: iron) catalyze the thermal decomposition reaction of PTFE, Molecular chain scission causes an irreversible decline in material properties. (3) Material aspect: Fluctuations in raw material performance indicators or insufficient pretreatment affect molding quality. (4) Process aspect: Control deviation of key process parameters causes the '2079851475616104453 to deviate from optimal conditions. (5) Equipment aspect: Equipment precision and maintenance status affect the stable execution of process parameters.

(1) Material selection: Avoid using metal fillers with strong catalytic activity, Establish material selection evaluation criteria, and determine the optimal solution through comparative tests. (2) Implementation measure: Passivate the surface of metal fillers, Develop a specific operation plan based on actual production conditions, and verify the implementation effect. (3) Parameter adjustment: Reduce the sintering temperature to compensate for the catalytic effect., Note that after lowering the temperature, it is still necessary to ensure the material fully reacts or melts; adjust step by step and observe the 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.