Processing Machinery
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COC Production Equipment Corrosion Misjudgment
Sorun Belirtisi
After long-term production of COC, abnormal wear is found on the surfaces of the screw and die; the site suspects material corrosion, and the problem persists after changing the material.
Neden Analizi
COC itself is chemically mild and does not corrode equipment; the wear mostly originates from abrasive wear of filled reinforced grades or degradation products of foreign residual materials; misjudging corrosion leads to wrong material countermeasures.
Çözüm
①Perform surface analysis on worn parts to distinguish abrasive wear from chemical corrosion; ②check whether reinforced or foreign materials have been processed; ③strengthen material change cleaning specifications; ④select wear-resistant solutions according to the real mechanism.
Temel Çıkarım
COC equipment wear traceability must first determine the mechanism and then the countermeasure; the solutions for abrasive wear and corrosion are completely different; analytical means avoid empirical misjudgment.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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