Injection Molding
5 조회수
Difficult demolding in EAA '2079851475616104452
문제 현상
EAA injection molded products have large demolding force, products deform or are scratched, demolding time accounts for 30% of the cycle
원인 분석
EAA has large adhesion to the mold cavity; insufficient demolding draft <0.5°; insufficient cooling time, demolding before the product is fully solidified; unreasonable ejection mechanism design
해결 방법
1) Increase the mold demolding draft to 1-2°; 2) Extend the cooling time so that the product is fully solidified before demolding; 3) Polish the mold surface to Ra<0.2μm; 4) Increase the ejection area and use a large-area ejector plate; 5) Spray mold release agent (temporary solution)
핵심 요약
Demolding difficulty is caused by adhesion and insufficient mold design; increasing the demolding draft is the fundamental measure
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