Casting Liquid Gelation Time Too Short

The casting liquid starts to gel before filling is completed, causing poor filling. This problem is relatively common in casting molding production and requires comprehensive analysis and solution from multiple aspects of materials, processes, and equipment.

(1) In terms of formula control: excessive amount of accelerator in the formula, component ratios deviating from design values lead to abnormal chemical reactions or physical states. (2) In terms of temperature parameters: the material temperature or mold temperature is too high, it may cause thermal degradation of the material or loss of control of the reaction rate, destroying the internal structure of the product. (3) In terms of temperature parameters: high ambient temperature accelerates the reaction, it may cause thermal degradation of the material or loss of control of the reaction rate, destroying the internal structure of the product.

(1) Implementation measures: adjust the amount of accelerator according to the casting amount and working time, formulate a specific operation plan based on actual production conditions and verify the implementation effect. (2) Process control: control the material temperature at the lower limit of the allowable range, establish an online monitoring mechanism, set upper and lower parameter limits, and implement alarm management. (3) Implementation measures: avoid long-time operation in high-temperature environments., formulate a specific operation plan based on actual production conditions and verify the implementation effect. (4) Preventive measures: establish a complete 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.