Molds & Tooling
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LCP Hot Runner System Adaptation Problems
문제 현상
【Problem Phenomenon】When LCP uses a hot runner, stringing, carbonized spots or cold slugs repeatedly appear at the gate
원인 분석
LCP melt temperature is high and viscosity is extremely low; hot runner temperature control deviation immediately causes degradation and carbonization or drool and stringing; the large temperature gradient in the gate area forms cold slugs; high-temperature low-viscosity materials have high requirements for hot runner precision
해결 방법
Select a high-temperature precision temperature-controlled hot runner model, with independent closed-loop gate temperature; enlarge the gate cooling zone isolation to prevent drool; regularly clean the hot nozzle to prevent carbonization accumulation; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
핵심 요약
The success or failure of LCP hot runners lies in temperature control precision; both carbonization and stringing originate from temperature loss of control; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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