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Precision injection molding parts are high-precision plastic components produced via advanced injection molding processes, designed to meet strict dimensional, structural, and performance requirements. Widely used in automotive electronics, medical devices, aerospace, and consumer electronics, these parts typically require tolerances as tight as ±0.005mm—far exceeding standard injection molding standards. Our precision manufacturing process integrates material science, mold engineering, and real-time parameter control to ensure each part delivers consistent quality, reliability, and compatibility with high-end assemblies.
1. Material Selection for Performance
We prioritize high-grade engineering plastics tailored to application needs: medical parts use biocompatible PP/PE (meeting ISO 10993), automotive under-hood parts adopt heat-resistant PA66+GF30 (withstanding -40℃ to 150℃), and electronic components use flame-retardant ABS/PC (UL94 V-0 rating). Each material undergoes pre-drying (moisture content ≤0.02%) to prevent bubbles in finished parts.
2. High-Precision Mold Engineering
Molds for precision parts use S136/H13 mold steel, processed via 5-axis CNC machining (accuracy ±0.003mm) and mirror polishing (Ra ≤0.02μm). We integrate mold flow simulation (MoldFlow) to optimize cavity filling—avoiding weld lines in stress-bearing areas—and design conformal cooling circuits to reduce part warpage (deformation ≤0.1mm/m).
3. Real-Time Injection Parameter Monitoring
Injection machines are equipped with servo control systems to regulate key parameters: melt temperature (fluctuation ±2℃), injection pressure (precision ±0.1MPa), and holding time (adjustable in 0.01s increments). Post-molding, parts undergo 100% inspection via coordinate measuring machines (CMM) and automated optical sorting (AOS) to ensure dimensional compliance.
• Ultra-Tight Tolerances: Dimensional accuracy up to ±0.005mm, suitable for precision fits (e.g., sensor housings, connector terminals).
• Consistent Quality: CPK (process capability index) ≥1.33, ensuring batch-to-batch uniformity for mass production (50k–1M units/month).
• Enhanced Durability: Material-mold matching reduces internal stress, extending part lifespan (e.g., automotive parts withstand 10k+ vibration cycles).
• Automotive: ADAS sensor housings, fuel system components.
• Medical: Syringe plungers, diagnostic device components.
• Electronics: 5G connector terminals, microchip carriers.
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Main Product:
Plastic Mold,
Die Casting Mold ,
overmoulding,
Automobile mold,
Outdoor sports mold,
Precision part processing
