Product Overview
This is a high-precision single-cavity injection mold specially designed for manufacturing right-side decorative housings. Built for premium PC material molding, the mold adopts a 3-point pin valve hot runner system to ensure clean, residue-free gating and uniform melt distribution. Constructed with high-quality 718H steel for the cavity and P20 steel for the core, both heat-treated for durability, the mold delivers consistent dimensional accuracy and a flawless high-gloss surface finish. Ideal for producing decorative plastic shells with strict appearance and assembly requirements.
Technical Specifications
| Specification | Details |
|---|
| Mold Cavity | 1*1 Single Cavity |
| Molding Material | PC (Polycarbonate) |
| Shrinkage Rate | 0.5% (1.005) |
| Gating System | 3-Point Pin Valve Hot Runner |
| Cavity Steel | 718H Mold Steel |
| Core Steel | P20 Mold Steel |
| Surface Treatment | High Gloss Finish |
| Molded Product | Right-Side Decorative Housing |
| Standard Mold Life | 300,000–500,000 Stable Shots |
Core Advantages
1. 1×1 Single-Cavity Precision Molding
The single-cavity design is optimized for high-precision production of the decorative housing, ensuring every cycle delivers consistent size, wall thickness, and surface quality. This configuration is ideal for small-batch, high-quality orders where dimensional stability and appearance are critical.
2. 3-Point Pin Valve Hot Runner System
Balanced Filling: Three synchronously controlled pin valve gates ensure uniform melt flow across the entire housing, eliminating weld lines, flow marks, and short shots.
Clean Gating: The pin valve system leaves no visible gate marks on the finished part, preserving the high-gloss surface integrity.
Material Savings: Hot runner design eliminates cold runner waste, reducing raw material costs and cycle time.
3. Premium Mold Steel Construction
Cavity (718H Steel): Pre-hardened to ~HRC 28–32, 718H offers excellent polishability, wear resistance, and dimensional stability—perfect for high-gloss PC parts.
Core (P20 Steel): With a hardness of ~HRC 28–32, P20 provides reliable structural support, good toughness, and easy maintenance, making it a cost-effective choice for core applications.
4. High Gloss Finish for Premium Appearance
The mold cavity is finely polished to a mirror-like finish, resulting in a flawless, scratch-free surface on the finished PC housing. No secondary painting, buffing, or trimming is required, reducing post-production costs and lead times.
Finished Decorative Housing Features
Flawless High-Gloss Surface: Mirror finish with no weld lines, flow marks, or gate residue
Stable Dimensional Accuracy: Strict tolerance control ensures perfect fit and assembly
Durable PC Material Performance: Excellent impact resistance, heat resistance, and anti-aging properties
Lightweight & Robust: Balanced wall thickness design ensures structural integrity without excess weight
Application Scenarios
Automotive interior decorative housings
Consumer electronics cosmetic covers
Household appliance decorative shells
Industrial equipment aesthetic enclosures
FAQ
Q1: What are the benefits of a 3-point pin valve hot runner system?
A: It provides balanced filling, eliminates gate marks, reduces material waste, and shortens cycle times, making it ideal for high-gloss, appearance-critical parts like decorative housings.
Q2: Why use 718H for the cavity and P20 for the core?
A: 718H offers superior polishability and wear resistance, which is essential for achieving a high-gloss finish on the visible surface. P20 provides reliable structural support and toughness for the core, balancing performance and cost-effectiveness.
Q3: Can this mold produce transparent PC housings?
A: Yes. The combination of high-gloss polishing and the pin valve hot runner system eliminates surface defects, making it suitable for both transparent and colored high-gloss PC parts.
Q4: Is custom modification available for the housing design?
A: Absolutely. We support full customization of shape, size, hole positions, texture, and logo engraving based on your drawings or samples.
