Over-sintering/thermal degradation

Product color darkens or blackens, and mechanical properties drop sharply. This problem is relatively common in sintering molding production and requires comprehensive analysis and solution from multiple aspects of materials, processes, and equipment.

(1) Temperature parameter aspect: sintering temperature exceeding the material thermal degradation temperature (PTFE>400°C, temperature deviation directly affects the physicochemical state and reaction progress of the material. (2) Process factor: UHMWPE>200°C), this factor affects the '2079851475616104453 and final quality of the product. (3) Process time aspect: holding time too long; improper time control causes the reaction or cooling process to fail to meet process requirements, affecting the final performance of the product. (4) Temperature parameter aspect: oven temperature display inaccurate causing actual temperature to be high, which may trigger thermal degradation of the material or runaway reaction rate, damaging the internal structure of the product.

(1) Process control: precisely control the upper limit of sintering temperature; establish an online monitoring mechanism, set parameter upper and lower limits and implement alarm management. (2) Implementation measures: use temperature measurement rings or thermometers to verify oven temperature accuracy; formulate specific operation plans based on actual production conditions and verify implementation effects. (3) Implementation measures: set the shortest necessary holding time according to the process., formulate specific operation plans based on actual production conditions and verify implementation effects. (4) Preventive measures: establish a sound process control standard and quality inspection system, and regularly review process data for continuous optimization.

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