| Quantity: | |
|---|---|
21274
YIXUN mold
8480419090
Custom 1*2 cavity balanced structure for synchronous dual-part molding
Premium 1.2344 mold steel with HRC48-52 hardness for high durability
Optimized for PP & TPE dual-material overmolding with strong bonding
Standard VDI24 matte texture on front & back mold surfaces
Strict dimensional control for low defective rate and stable mass production
| General Product Specifications | |
|---|---|
| Product Name | 1*2 Cavity PP & TPE Dual Material Injection Mold |
| Mold Cavity | 1*2 cavity (2-cavity balanced layout) |
| Mold Steel | 1.2344 hot work mold steel (DIN standard) |
| Mold Hardness | HRC48-52 (after vacuum heat treatment) |
| Surface Finish | Front & back VDI24 uniform matte texture |
| Molding Materials | PP (polypropylene) + TPE (thermoplastic elastomer) |
| Molding Process | Double injection overmolding (two-shot molding) |
| Cavity Tolerance | ±0.03mm (precision CNC machining) |
| Mold Base | Standard LKM/HASCO/DME (customizable) |
| Runner System | Cold runner (hot runner optional) |
| Cooling System | Optimized water channel for balanced cooling |
| Mold Lifespan | 800,000 – 1,200,000 shots |
| Shrinkage Compensation | PP: 1.5%–2.0%; TPE: 0.8%–1.2% |
| Application | Soft-touch grips, anti-slip parts, household appliances, electronic accessories |
| Injection Process Parameter (PP+TPE Example) | Specification & Purpose |
| PP Melt Temperature | 210–230°C (Ensures rigid part fluidity, no short shots) |
| TPE Melt Temperature | 180–200°C (Prevents TPE degradation, maintains softness) |
| Mold Temperature | 40–60°C (Balances PP crystallization and TPE bonding strength) |
| Injection Pressure | 800–1000 bar (Fills PP/TPE cavities completely, no flash) |
| Cycle Time | 25–35s (Efficient production with full curing) |
Balanced 1*2 Cavity Design: The 1-in-2 cavity layout ensures synchronous filling and cooling for two parts per cycle. Optimized runner and cooling systems eliminate size deviation between cavities, improving production efficiency by 100% compared to single-cavity molds.
High-Hardness 1.2344 Steel Construction: Imported 1.2344 hot work steel with HRC48-52 hardness offers exceptional thermal stability, wear resistance, and deformation resistance. It withstands long-term high-pressure PP+TPE molding, reducing maintenance frequency and extending mold life.
Professional PP & TPE Compatibility: The mold is optimized for the distinct shrinkage rates and fluidity of PP and TPE. Precision gate positioning and pressure control ensure tight bonding without delamination, combining PP’s rigidity with TPE’s soft touch.
Uniform VDI24 Texture Finish: Both front and back mold surfaces feature standard VDI24 matte texture, providing a fine, uniform surface on plastic parts. It hides minor flow lines, increases surface friction, and ensures consistent appearance across mass production batches.
Low Defect & Stable Production: Strict ±0.03mm cavity tolerance and balanced cooling system reduce shrinkage, warpage, and flash. 100% mold trial inspection guarantees batch-to-batch consistency for long-term mass production.
Outstanding thermal stability: Resists deformation under high-temperature PP+TPE injection (180–230°C), maintaining dimensional precision.
Superior wear resistance: Withstands repeated TPE soft material friction and PP high-pressure filling, reducing cavity wear and extending service life.
High toughness: Prevents cracking under cyclic heating/cooling and high injection pressure, ensuring long-term structural integrity.
This high-hardness steel eliminates the risk of mold deformation during mass production, ensuring consistent part dimensions and reducing scrap rates.
PP Rigid Layer: Provides structural strength, dimensional stability, and chemical resistance. The mold optimizes PP melt flow to ensure full cavity filling and minimal shrinkage (1.5%–2.0%).
TPE Soft Layer: Delivers soft touch, anti-slip performance, and shock absorption. Precision gate design ensures TPE adheres tightly to PP without delamination or peeling.
Bonding Optimization: The mold’s surface texture and injection pressure parameters enhance PP-TPE interfacial adhesion, solving common dual-material defects like poor bonding and edge lifting.
Shrinkage Compensation: Separate shrinkage allowances for PP and TPE eliminate differential shrinkage, ensuring composite parts maintain shape and size stability.
Uniform Matte Appearance: VDI24 texture creates a fine, consistent matte surface on plastic parts, improving product grade and hiding minor molding imperfections (flow lines, weld marks).
Enhanced Friction: The textured surface increases part friction, ideal for anti-slip grips and handle components.
Consistent Batch Appearance: Unified VDI24 texture on front and back molds ensures zero color/appearance difference in mass production, avoiding inconsistent gloss caused by uneven polishing.
Easy Demolding: The matte texture reduces vacuum adsorption between mold and part, enabling smooth demolding without scratching the surface.
Micro-Precision Machining: Cavities are CNC-machined to ±0.03mm tolerance, ensuring accurate replication of part geometries and tight PP-TPE bonding.
Balanced Runner System: Precision-designed runners and gates ensure uniform melt distribution for both cavities, eliminating pressure imbalance and shrinkage deviation.
Optimized Cooling Channels: Scientifically arranged water channels provide balanced cooling for PP and TPE layers, reducing cycle time and preventing warpage from uneven cooling.
Surface Texture Consistency: Professional texturing equipment ensures uniform VDI24 texture depth and distribution on all mold surfaces, avoiding local texture abnormalities.
Household Products: Soft-touch grips for kitchen utensils, anti-slip handles for cleaning tools, and comfortable grip parts for daily appliances.
Electronic Accessories: Protective cases with soft edges, anti-slip buttons, and ergonomic grips for consumer electronics.
Automotive Interior: Soft-touch control buttons, anti-slip door handles, and ergonomic interior trim components.
Medical Devices: Non-slip handles for medical instruments and soft-grip components for portable diagnostic equipment.
Sports Equipment: Anti-slip grips for fitness tools and soft-touch components for outdoor gear.
Custom Cavity Sizes: Modify cavity dimensions to match proprietary part designs, with precision tolerance down to ±0.02mm.
Adjustable Texture Standards: Switch to VDI18/VDI30 or SPI polish grades (mirror/high-gloss) for specific appearance needs.
Runner System Customization: Upgrade to hot runner systems for high-volume production, reducing material waste and cycle time.
Material Optimization: Adjust mold steel (e.g., 1.2343, S136) or coating (nitriding, PVD) for special TPE/PP blends or high-wear applications.
Special Function Integration: Add sliding cores, lifters, or side actions for complex part geometries (e.g., undercuts, side holes).
CMM Dimensional Verification: Coordinate Measuring Machines confirm cavity dimensions are within ±0.03mm tolerance, ensuring batch-to-batch uniformity.
100% Mold Trial Testing: Each mold undergoes full PP+TPE trial production to inspect bonding strength, surface appearance, and dimensional stability.
Hardness Testing: Rockwell hardness tests verify HRC48-52 hardness across all mold steel surfaces, ensuring consistent material performance.
Texture Uniformity Inspection: Optical microscopy checks VDI24 texture depth and distribution, ensuring uniform surface finish on all cavities.
Production Simulation: Long-cycle molding simulations validate mold durability, cooling efficiency, and defect resistance under mass production conditions.
Extended Mold Lifespan: 1.2344 HRC48-52 steel ensures 800,000–1,200,000 shots of stable production, outperforming standard P20 molds by 30–50%.
Low Maintenance Costs: High wear resistance reduces cavity repair frequency, while balanced cooling prevents thermal fatigue and cracking.
Reduced Scrap Rates: Precision cavity design and dual-material optimization minimize shrinkage, delamination, and surface defects, cutting scrap costs by 20–40%.
Efficient Production: Balanced 1*2 cavity design and optimized cooling reduce cycle time by 15–25%, increasing daily output and lowering per-unit production costs.
Direct Manufacturer Advantage: No intermediaries, offering competitive pricing and shorter lead times (25–35 days for mold fabrication).
Dual-Material Expertise: 10+ years of PP+TPE dual-material mold design and manufacturing experience, solving complex bonding and shrinkage challenges.
Premium Material Sourcing: Imported 1.2344 steel and standardized components ensure consistent mold quality and performance.
Full Technical Support: Dedicated engineering team provides DFM analysis, mold trial guidance, and process optimization for your production line.
Reliable After-Sales Service: Global technical support and 12-month warranty ensure prompt resolution of mold issues, minimizing production downtime.
