Excessive demolding force of the preforming mold

The force required for demolding the blank exceeds the capacity of the demolding equipment. This problem is particularly prominent when the production cycle is fast or the mold temperature is abnormal, and in severe cases causes product damage.

(1) Pressure parameter aspect: The friction between the powder and the mold wall under pressure is large; improper pressure control directly affects the compactness and molding quality of the product. (2) Mold aspect: Insufficient mold draft angle; the mold structure or state directly affects the flow and molding of the material in the cavity. (3) Process factor: Lack of demolding lubrication; this factor affects the '2079851475616104453 and final quality of the product.

(1) Implementation measure: Spray release agent on the inner wall of the mold, formulate specific operation plans in combination with actual production conditions, and verify the implementation effect. (2) Formulation optimization: Increase the draft angle, determine the optimal addition amount through small-batch tests, and verify the impact on the comprehensive performance of the product. (3) Material selection: Use an inner liner with a demolding groove for demolding, establish material selection evaluation standards, and determine the optimal plan through comparative tests. (4) Parameter adjustment: Reasonably reduce the preforming pressure., appropriately reduce the pressure on the premise of ensuring the compactness of the product, avoiding defects caused by insufficient pressure. (5) Preventive measure: Formulate a mold maintenance plan, and regularly check the release agent coating and the mold surface state.

Demolding problems need to be comprehensively solved from three aspects: mold surface treatment, release agent selection, and curing degree control.