Injection molded parts deforms
Description
Injection molded parts that cannot be copied exactly as cavity size, some parts are torn, bent or deformed.
Preview
Causes
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Possible causes
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Suggested solution
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| Injection molding machine |
Parts eject while they are too hot. |
1. Increase cooldown.
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2. Reduce melt temperature.
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3. Increase the total cycle time.
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4. Reduce mold temperature.
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| Mold |
1. Mold sinks too deeply. |
Reduce the depth of the depression, and RADIUS.
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2. Apex PIN number is too small or too little.
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Increasre the number of top pin diameter or.
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3. The movement of the machinery is not uniform.
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Check out balance and smooth nature of mechanical movement.
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| 4. The ribs use in injection molding line or the wheel design was incorrect. |
Rib used on lines, hubs and networks, such as the maximum allowable slope.
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| 5. Mold surface finish difference. |
Polish mold surface.
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