Extrusion & Post
4 조회수
EVA Photovoltaic Module Broken Cells
문제 현상
After lamination, the cells show microcracks or fragments.
원인 분석
Improper soldering with tin buildup or tin slag crushes the cells during vacuuming; the cells have original hidden damage, lamination is too early while the EVA has good fluidity; improper board-lifting gestures also cause crush injuries.
해결 방법
①Check the soldering quality and strengthen employee training; ②adjust the lamination process, increase the vacuuming time and reduce the lamination pressure; ③standardize the board-lifting operation; ④inspect incoming cells.
핵심 요약
Broken cells are a typical problem of the superposition of human factors and process; soldering quality and operation specifications are the focus of prevention and control.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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