Electrical appliances Injection Plastic Frame Shell

Core Design & Performance Specifications

• Structural and dimensional accuracy
  • Tolerance: Key dimensions (bosses, snaps, mating surfaces) ±0.05–±0.1 mm; large components ±0.1–±0.8 mm; tolerance for fitting 0.05–0.1 mm for tight fit.
  • Wall thickness: Consistent 1.5–3.0 mm (tolerance not exceeding 15%); ribs are at 60%–70% of wall thickness to prevent warping/shrinkage.
  • Draft angle: 0.5°–3° for easier demolding; fillet R≥0.5 mm for reducing stress.
  • Reinforcements: ribs, bosses, and gussets for enhancing rigidity but with minimum thickening.
• Safety and compliance requirements
  • Fire resistance: meet UL94 V0/V1/V2 or GB/T 2408 standards; utilize fire-resistant grades (PC+FR, PC/ABS+FR).
  • Electrical insulation: volume resistivity is 10¹² Ω·cm or more; CTI ≥6

Key Advantages of Custom Injection Molding

• Design freedom: Geometrical intricacies, undercuts, and functional parts (clips, hinges) minimize assembly requirements.
• Economic viability: Economies of scale; low cost per unit and minimal scrap rate (<5%) compared to subtractive techniques.
• Precision: Batch consistency due to automated manufacture, viable for volumes in excess of 10,000 per year.
• Personalization: Textured, colored, and branded through in-mold decoration or post-processing

• Home Appliance Plastic Accessories
• Automotive Plastic Accessories
• Furniture Plastic Fittings
• Daily Plastic Parts
• Other Plastic Parts
• Industrial Plastic Injection