Runaway Exotherm/Explosive Polymerization

During the casting process, the temperature at the center of the product rises sharply, causing scorching and cracking. This problem is relatively common in casting molding production and requires comprehensive analysis and solution from multiple aspects of materials, processes, and equipment.

(1) Process factors: concentrated curing exotherm and poor heat dissipation in thick-walled products, this factor affects the product's '2079851475616104453 and final quality. (2) In terms of formula control: excessive amount of catalyst/accelerator, component ratios deviating from design values lead to abnormal chemical reactions or physical states. (3) In terms of temperature parameters: the casting liquid temperature is too high, triggering too fast a 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) Process control: control the single casting amount, establish an online monitoring mechanism, set upper and lower parameter limits, and implement alarm management. (2) Formula adjustment: use multiple castings to reduce the exothermic peak, adjust gradually and verify the effect, ensuring that other performance indicators of the product are not affected. (3) Formula optimization: add inert fillers to increase heat capacity, determine the optimal addition amount through small-batch tests and verify its impact on the comprehensive performance of the product. (4) Formula adjustment: reduce the amount of accelerator., adjust gradually and verify the effect, ensuring that other performance indicators of the product are not affected. (5) 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.