Detailed Introduction

This multi-cavity injection mold is customized for integrated transparent plastic components of laboratory diagnostic fluid circulation modules, fully optimized for medical transparent plastic’s high light transmission and biocompatibility to eliminate typical defects including long cylinder uneven shrinkage, multi-way valve weld lines and transparent surface haze.

The split fixed-moving two-plate mold adopts symmetrical modular multi-row cavity layout to simultaneously produce all diagnostic fluid parts shown in the image: large cylindrical liquid storage housing with central needle tube, multi-channel T-type flow control valve, vertical multi-port flow divider and square positioning base housing. Each complex multi-channel transparent component cavity is an independent embedded insert for quick disassembly, replacement and deep residue-free cleaning. All molding surfaces adopt multi-stage high-gloss mirror polishing matched with transparent medical plastic melt characteristics, ensuring ultra-smooth internal fluid channels without micro burrs that may affect diagnostic liquid purity.

Independent distributed cooling pipelines are laid out for every single cavity to precisely stabilize mold temperature during injection molding, effectively restraining long cylinder axial bending, thin wall uneven shrinkage and multi-port branch deformation. Built-in precision interlock slide locking blocks maintain stable clamping force under long-cycle cleanroom mass production, preventing micro flash on thin-wall cylinder edges and micro flow port structures, and extending mold service life under cyclic medical transparent plastic molding.

Complete Precision Machining Workflow

1. 5-axis CNC CNC rough milling for mold base outline and mixed complex multi-channel cavity rough forming
2. Vacuum stress relief heat treatment to stabilize steel hardness and reduce thermal deformation under continuous medical transparent plastic molding
3. Precision surface grinding to control mold plate flatness & parallelism within ±0.002mm
4. Sinker EDM & Wire Cut WEDM for ultra-fine central needle tube, threaded port and multi-way branch contour features
5. Multi-stage particle-free high-gloss polishing optimized for transparent medical plastic
6. Optional anti-corrosion surface coating compatible with high-purity diagnostic grade transparent raw materials

All mold core, cavity and structural components complete full 3D coordinate measuring inspection to satisfy strict laboratory diagnostic equipment drawing tolerance standards. Full customization is supported based on diagnostic flow module samples or engineering drawings: cavity quantity, mold steel grade, cooling circuit layout and polishing grade can be adjusted according to medical plastic purity grade, biosafety laboratory requirements and daily production capacity. The modular multi-cavity layout greatly improves molding efficiency while unifying channel smoothness, wall thickness consistency and optical transparency of complete diagnostic fluid circulation module assemblies.

Specification Table