Mold fitting clearance problem

During preforming, powder overflows from the mold clearance or the product produces flash. This problem is relatively common in sintering molding production and needs to be comprehensively analyzed and solved from multiple aspects of material, process, and equipment.

(1) Mold aspect: The fitting clearance between the mold punch and the mold cavity is too large; the mold structure or state directly affects the flow and molding of the material in the cavity. (2) Mold aspect: Mold wear causes the clearance to increase; the mold structure or state directly affects the flow and molding of the material in the cavity. (3) Material aspect: Fluctuations in raw material performance indicators or insufficient pretreatment affect molding quality. (4) Process aspect: Deviations in the control of key process parameters cause the '2079851475616104453 to deviate from optimal conditions. (5) Equipment aspect: Equipment accuracy and maintenance status affect the stable execution of process parameters.

(1) Implementation measure: Keep the punch-cavity fitting clearance within the design range (usually 0.02-0.08mm), formulate specific operation plans in combination with actual production conditions, and verify the implementation effect. (2) Equipment maintenance: Repair or replace worn molds, formulate regular inspection and maintenance plans to ensure the equipment is in the best working condition. (3) Formulation adjustment: Use sealing rings to reduce powder overflow., adjust gradually and verify the effect to ensure that other performance indicators of the product are not affected. (4) Preventive measure: Establish a sound process control standard and quality inspection system, and regularly review process data for continuous optimization.

This problem needs to be comprehensively analyzed from multiple dimensions of material, process, equipment, and operation, and solved by systematically optimizing process parameters and the quality control system.