Processing Machinery
3 조회수
PVC Transparent Products
문제 현상
Transparent PVC parts turned yellow and hazy, transparency failed the standard, and gel particles and impurities were visible
원인 분석
Transparent PVC has the highest requirements for formulation and process: the organotin stabilization system preserves transparency; even trace degradation shows yellow; impurities and gel particles have nowhere to hide on transparent parts; during on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience
해결 방법
①Select organotin-stabilized high-transparency grades for transparent parts; ②strictly control temperature to prevent slight degradation; ③high-efficiency filtration and clean production; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
핵심 요약
Transparent PVC is the touchstone of process cleanliness; only excellence in formulation, temperature, and cleanliness can produce high transparency; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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