Molds & Tooling
5 görüntüleme
PVC Mold Anti-Corrosion
Sorun Belirtisi
The mold cavity surface gradually rusts and roughens, and product surface quality continuously deteriorates
Neden Analizi
HCl gas combines with condensed water on the mold surface to corrode ordinary mold steel; the parting line and runners bear the brunt; the roughened surface after corrosion aggravates retention and shear, creating a vicious cycle of defects
Çözüm
①Use stainless steel or chrome-nickel plating for the mold; ②focus protection on the parting line and runners; ③rust-prevention maintenance of the mold during production gaps; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Temel Çıkarım
Anti-corrosion of PVC molds is a design-stage decision; stainless steel or plating treatment is far more economical than repairing the mold afterward; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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