Detailed Introduction

This full automotive plastic component series adopts two core high-temperature engineering plastics to adapt to diverse vehicle operating environments.

LCP material features ultra-low thermal expansion and excellent high-frequency insulation performance, applied to miniature dense multi-pin inner cores, thin positioning strips and tiny locking inserts inside engine compartments, effectively avoiding terminal offset caused by long-term high-temperature heating. V0 flame-retardant glass-filled PBT delivers outstanding mechanical rigidity, impact resistance and flame suppression capability, ideal for large multi-circuit junction boxes, cylindrical high-voltage plugs and thick-wall mounting brackets bearing heavy mechanical load and circuit heating risks.

The product lineup includes all core matching parts of automotive electrical systems: oversized grid fuse relay distribution housings, long multi-row signal terminal strips, orange high-current power plugs, multi-color modular signal connectors, circular waterproof sealing rings, multi-spec locking auxiliary pieces and green integrated locking operation covers. Multi-color differentiation (black, orange, red, yellow, blue, green, white) is adopted to distinguish power, signal, ground and high-voltage circuits for rapid assembly inspection. Each main housing and auxiliary accessory adopts matched precision clearance to form dual anti-loosening protection, eliminating poor contact induced by vehicle vibration. Optimized thin-wall melt flow mold design solves shrinkage, warpage and flash defects during molding high-temperature flame-retardant plastics.

Complete Production Workflow

1. Custom precision mold core processing: 5-axis CNC rough & finish milling, micro sinker EDM for complex curved contours and tiny grid pin slots
2. Vacuum stress relief heat treatment for mold steel to stabilize cavity dimensions under continuous high-temperature injection cycles
3. Multi-stage mirror polishing to reduce melt adhesion of LCP/PBT flame-retardant plastic and lower demolding resistance
4. Segmented temperature-controlled precision injection molding with customizable color masterbatch blending
5. Post-molding full 3D coordinate dimensional inspection, burr trimming, high-temperature aging and flame retardancy safety testing

All finished plastic components pass thermal stability and vibration anti-loosening aging verification. Custom development is fully supported based on customer circuit layout drawings: pin grid quantity, shell wall thickness, plastic flame retardant grade, locking mechanism and color scheme can be adjusted according to operating temperature, current load and vehicle assembly requirements. The full diversified specification series realizes one-stop supporting supply from miniature sensor signal connectors to new energy vehicle high-voltage power distribution assemblies.

Specification Table