Sand hole chain appears in centrifugal casting

Continuous small holes distributed along the circumference appear in the radial cross-section of the product. This problem is relatively common in casting molding production and requires comprehensive analysis and solution from multiple aspects of material, process, and equipment.

(1) Mold aspect: There are continuous tiny pits or contamination points on the mold inner wall, The mold structure or condition directly affects the flow and molding of the material in the cavity. (2) Process factor: Bubbles are arranged along the circumferential direction, This factor affects the '2079851475616104453 and final quality of the product. (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) Implementation measure: Restore the finish of the mold inner wall, Develop a specific operation plan based on actual production conditions, and verify the implementation effect. (2) Operation specification: Clean the mold surface, Develop standard work instructions for cleaning operations, and perform inspection before each production run. (3) Implementation measure: Increase the centrifugal speed to increase the bubble removal force., 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.