Detailed Introduction

This two-plate fan gear integrated mold is customized for simultaneous molding of fan impeller and matching plastic gear parts, solving the assembly consistency problem of paired plastic components.

The mold is divided into front fixed mold plate and rear moving mold plate; the fixed half contains smooth fan impeller cavity insert, while the moving half holds toothed gear cavity insert. Four thick positioning guide pins ensure precise mold closing alignment, and built-in yellow disc springs form a stable ejection structure to smoothly push finished plastic parts out after molding. Each cavity adopts independent insert design for convenient disassembly, replacement and maintenance when gear teeth or fan surface wear occurs.

Complete Precision Machining Workflow

1. 5-axis CNC rough milling for mold base overall outline and cavity rough forming
2. Vacuum heat treatment to homogenize steel hardness, improve structural rigidity and reduce high-temperature deformation
3. Precision surface grinding to control mold plate flatness and parallelism within ±0.002mm
4. Sinker EDM & wire cut WEDM for intricate gear tooth profiles and fan blade micro contours
5. Multi-stage mirror polishing to lower plastic melt adhesion and eliminate surface burrs on finished parts
6. Optional PVD anti-wear coating for inserts producing glass-fiber reinforced plastics

All mold components pass full 3D coordinate measuring inspection to meet strict drawing tolerance standards. Custom development is fully supported based on customer samples or engineering drawings: mold steel grade, cavity shape, ejection spring configuration and surface treatment can be adjusted according to plastic material, production cycle and service life demands. The split dual-plate layout simplifies mold installation and daily maintenance, effectively lowering reject rates of matched fan and gear plastic parts.

Specification Table