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Dense Surface Pits of CMC
Fenómeno del problema
Dense pits of 0.1-0.3mm on the surface of CMC products affect appearance and coating adhesion
Análisis de la causa
Raw material contains impurity particles >0.05%; mold cavity surface is damaged or has corrosion pits
Solución
1)Replace with pure raw material with impurities <0.01%; 2)Repair and polish mold cavity to Ra<0.2μm; 3)Filter raw material to remove particles
Conclusión clave
Pits are caused by raw material impurities and mold damage; pure raw material and mold maintenance are the key
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