Needle-Free Injector Cap: Mold Solution for Small Precision Parts with Undercuts
Customer Demands
Material: Medical-grade PC2805;Dimensions:?17mm×30mm(D×H); Surface:Optical polish(Ra≤0.02μm).
Three micro snap-?t features with 0.15mm undercut depth, requiring non-standard demolding strategies due to tight tolerances (IT8).
Solution
Mold Flow Simulation Analysis: Conduct meticulous mold ?ow analysis before tooling to determine the optimal gate position and ensure uniform melt ?ow distribution.
Dual-Stage Ejection System: Design a sequential ejection mechanism to maintain mold integrity while enabling snap-?t feature release without structural compromise.
Mold Manufacturing: Select high-hardness polished steel as the mold material to meet the mirror ?nish requirements of the PC2805 material.
Customer Value
XuanSheng has perfectly solved the problem of demolding the snap-?t positions through mold ?ow analysis and the design of the secondary ejection mechanism, helping us reduce the mold cost by 20%.
Application Scenarios
Needle-Free Drug Delivery: Hermetic caps for injectors, ensuring aseptic handling and tool-free assembly.
Medical Devices: Snap-?t components for equipment, enhancing functional reliability and user safety. Pharmaceutical Systems: Critical for dose-controlled devices, guaranteeing ±1% dosing accuracy and 10,000-cycle lifespan.
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