Molding Process
7 조회수
PPO High-Temperature Steam Sterilization Part Deformation
문제 현상
PPO medical tableware shows deformation and performance decline after high-temperature steam sterilization, and deterioration accelerates as the number of repeated sterilizations increases.
원인 분석
Although PPO is steam resistant, long-term repeated high-temperature sterilization still has cumulative effects; product internal stress is released and deforms during thermal cycling; uneven wall thickness aggravates the degree of deformation; the heat resistance grade of the material grade is insufficient.
해결 방법
①Select a grade with matching heat resistance grade; ②low-stress molding and uniform wall thickness design; ③conduct accelerated verification according to the number of sterilizations; ④include deformation amount in acceptance criteria.; After adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
핵심 요약
PPO steam sterilization applications must be verified according to the number of cycles; internal stress management is the core of deformation control; grade selection matches the temperature grade.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
이 정보가 도움이 되었나요?
0 명이 도움이 되었다고 합니다
의견 주셔서 감사합니다!