Injection Molding
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CEF injection molded part has oil spots
Fenómeno del problema
After demolding, oil spots appear on the surface of the CEF injection molded part, release agent residue or lubricant exudation
Análisis de la causa
Too much release agent sprayed or unevenly distributed; the internal lubricant of CEF, stearic acid type, exudes to the surface; mold lubricating oil seeps into the cavity
Solución
1) Reduce the amount of release agent or switch to dry film release agent; 2) Use internal lubricant instead of external release agent; 3) Seal the lubricated parts of the mold to prevent oil from seeping into the cavity; 4) Clean the surface of the part to remove oil spots and then detect the source
Conclusión clave
Oil spots are caused by external sources of release agent and lubricant; reducing release agent and sealing mold lubrication are the key
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