Cell burst appears in foamed products at low temperature

Cells of foamed products rupture during low-temperature storage or transportation. This problem is relatively common in foam molding production and requires comprehensive analysis and solution from multiple aspects of material, process, and equipment.

(1) Gas removal aspect: Residual blowing gas in the cells liquefies at low temperature, forming a vacuum, Gas retention forms internal defects, affecting the compactness of the product. (2) Process factor: Atmospheric pressure difference ruptures the cell walls, 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) Process optimization: Extend the air replacement time after foaming so that the cells are filled with air, Determine a reasonable time according to product wall thickness and material characteristics, balancing production efficiency and quality. (2) Material selection: Use formulations with high cell wall strength to resist pressure differences., Establish material selection evaluation criteria, and determine the optimal solution through comparative tests. (3) Process optimization: Determine the optimal process parameter window through systematic tests and establish standardized operating procedures. (4) Quality control: Strengthen process monitoring and product inspection, Establish a defect early-warning and traceability mechanism. (5) 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.