Processing Machinery
3 조회수
PP Random Copolymer Transparent Processing
문제 현상
[Problem Phenomenon] Random copolymer PP transparent parts are hazy; optics not up to standard
원인 분석
Random copolymer PP has good transparency but is sensitive to crystallization and shear; nucleating agents improve transparency; the process controls crystallinity to ensure optics; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based on experience alone
해결 방법
Use random copolymer plus nucleating agent for transparent parts; mold temperature controls crystallization; low shear prevents haze; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
핵심 요약
PP random copolymer plus nucleating agent; transparency relies on crystallization control; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar future problems
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