Molds & Tooling
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PPS Mold Wear and Corrosion
문제 현상
Mold wear accelerates, and cavity surface corrodes.
원인 분석
PPS is processed at high temperature and contains sulfur, which is corrosive to the mold to a certain extent; glass fiber reinforced grades wear more severely.; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
해결 방법
①Select corrosion-resistant and wear-resistant mold steel (such as S136H); ②surface treatment to increase hardness; ③regularly detect cavity condition; ④maintain according to life cycle.; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
핵심 요약
PPS molds must be resistant to high temperature, corrosion and wear; mold steel selection is a long-term investment.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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