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Topic: The Most Likely Defects in Mold Injection Molding Process

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The Most Likely Defects in Mold Injection Molding Process
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Mold injection molding process may encounter this and that problem, the most likely to encounter defects will be what? The author tells you that the most likely defects encountered in the mold injection molding process are as follows 1. The characteristics of the defective injection molded parts injection molding process is incomplete because the mold cavity is not filled with plastic or the injection molding process lacks certain details.To get more news about 2k injection moulding, you can visit asm-mold.com official website.
Possible reasons for the problem, (1). Insufficient injection speed. (2). Plastic is missing (3). The screw did not leave the screw bedding at the end of the stroke. (4). Running time variation. (5). Injection cylinder temperature too low. (6). Insufficient injection pressure. (7). Nozzle is partially sealed. (8). Heater outside the nozzle or injection cylinder does not operate. (9). Injection time is too short. (10). Plastic is stuck to the hopper throat wall. (11). Injection machine capacity is too small (i.e., injection weight or plasticizing capacity). (12). Mold temperature is too low. (13). The mold is not cleaned of anti-corrosion oil. (14). The stop ring is damaged and the melt has backflow

Solution: (1). Increase the injection speed. (2). Check the amount of plastic in the hopper. (3). Check if the injection stroke is set correctly, and change it if necessary. (4). Check that the check valve is not worn or cracked. (5). Check that the operation is stable. (6). Increase the melt temperature. (7). Increase the back pressure. (8). Increase the injection speed. (9). Check the injection nozzle hole for foreign objects or unplasticized plastic. (10). Check all the outer layers of the heater with an amperometer to make sure the energy output is correct. (11). Increase the screw forward time. (12). Increase the amount of cooling in the hopper throat area or reduce the temperature in the rear area of the injection cylinder. (13). Use a larger injection molding machine. (14). Increase the mold temperature appropriately. (15). Clean up the rust inhibitor inside the mold. (16). Check or replace the stop ring.



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