Foam bottom scorching/core burning (internal overheating)

The interior of thick foam products appears scorched yellow or even black. This problem is relatively common in foam molding production and requires comprehensive analysis and solution from multiple aspects of materials, processes, and equipment.

(1) Process factor: reaction heat release is concentrated and foam has poor thermal conductivity, causing heat accumulation; this factor affects the '2079851475616104453 and final quality of the product. (2) Process factor: product thickness too large making heat dissipation difficult; this factor affects the '2079851475616104453 and final quality of the product. (3) Formulation control aspect: catalyst dosage too high accelerating heat release; component ratio deviating from the design value causes abnormal chemical reaction or physical state.

(1) Formulation adjustment: pour in multiple pours to reduce single-pour thickness, adjust gradually and verify the effect, ensuring that other performance indicators of the product are not affected. (2) Process control: reduce catalyst dosage to control reaction heat release; establish an online monitoring mechanism, set parameter upper and lower limits and implement alarm management. (3) Implementation measures: use fillers to increase heat capacity and thermal conductivity., formulate specific operation plans based on actual production conditions and verify implementation effects. (4) Preventive measures: establish a sound 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.