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Kenplas Forum ==> Injection Molding (Machine) ==> Splay Marks
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Cause: Hot material spraying into the mould and subsequently material flown
1. Manifold tip temperature too high;
2. Hold pressure/time too high;
3. Improper decompression time (too long or too short);
4. Injection speed too high. (But residence time of resin should be minimized)
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This forum published since July 03, 2002.
Renewed on June 22, 2005. |
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