Injection Molding
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Glass Fibre injection molded product has oil spots
Fenómeno del problema
Glass Fibre injection molded product after demolding surface shows oil spots, release agent residue or lubricant exudation
Análisis de la causa
Release agent sprayed too much or unevenly distributed; Glass Fibre internal lubricant stearic acid type exudes to surface; mold lubricating oil seeps into cavity
Solución
1) Reduce release agent dosage or switch to dry-film release agent; 2) use internal lubricant instead of external release agent; 3) seal mold lubrication parts to prevent oil seeping into cavity; 4) clean product surface to remove oil spots then detect source
Conclusión clave
Oil spots are caused by external sources of release agent and lubricant; reducing release agent and sealing mold lubrication are key
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