Blow Molding
4 조회수
PET bottle failing stress cracking test
문제 현상
Bottom or neck cracking appears in the PET bottle alkaline solution stress cracking test.
원인 분석
Improper bottle bottom design (no petaloid bottom); excessive orientation of material at the bottom injection point; unreasonable '2079851475616104457 parameters cause local over-stretching.
해결 방법
Optimize bottle bottom design by adding reinforcing ribs or a petaloid bottom; adjust '2079851475616104457 to reduce bottom over-stretching; select bottle-grade PET with IV≥0.80.
핵심 요약
PET bottle stress cracking is closely related to bottle design, material selection and process parameters.
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