Material Drying
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Insufficient Welding/Fusion Strength of Biaxially Oriented Polypropylene Film Products
문제 현상
After the product is joined by hot plate welding, ultrasonic welding, etc., the welding strength is insufficient, and it breaks at the weld when stressed.
원인 분석
(1) The welding temperature is too low, and the material is not fully melted and fused
(2) The welding pressure is insufficient or the time is too short
(3) The welding surface is contaminated (oil, dust, etc.)
(4) The material contains moisture or additives affect welding
(5) The welding surface is uneven, and the contact area is insufficient
해결 방법
(1) Optimize the welding temperature to a suitable range for ABS variant
(2) Increase the welding pressure and time
(3) Clean the welding surface before welding
(4) Fully dry the raw material and reduce the amount of additives
(5) Ensure the welding surface is flat
핵심 요약
The welding strength is determined by the quality of melt fusion.
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