Four-hole Coaxial ±0.003mm Semiconductor Packaging Dedicated Positioning Base With Zero Magnetic Interference
When precision injection molding encounters challenges with magnetic interference and positioning accuracy, the four-hole injection molding seat, precisely manufactured from WC-Ni non-magnetic carbide, completely resolves the pain points of magnetic attraction and thermal deformation associated with traditional mold parts through its overall non-magnetic structure combined with four-hole coaxial precision machining technology. This enables superior performance in semiconductor packaging and precision medical device injection molding, with zero magnetic interference, high-precision positioning, and an extremely long life.
Material Analysis:
▸ Matrix Composition: 90% WC + 10% Ni, Special Non-Magnetic Formula
▸ Magnetic Properties: Permeability <1.002, Remanence <0.05 mT
▸ Physical Properties:
- Hardness: 91.5 HRA
- Density: 14.9 g/cm³
- Thermal Conductivity: 85 W/(m·K)
- Coefficient of Thermal Expansion: 5.5×10⁻⁶/K
▸ Non-Magnetic Principle: A nickel-based binder phase replaces the cobalt phase, completely eliminating ferromagnetism.
Structural Design:
▸ Hole Layout (Customizable based on drawings):
- 4 x 2.0 ± 0.003 mm Φ precision through-holes
- Square, symmetrical layout, spacing 10 ± 0.005 mm
- Hole depth 15 mm, straightness ≤ 0.005 mm
Performance comparison table:
| Performance Specifications | Non-magnetic Four-Way Hole Base | Stainless Steel Hole Base | Advantages |
| Magnetic Permeability | <1.002 | 1.02-1.05 | Completely Eliminates Magnetic Adsorption |
| Hole Position Accuracy | ±0.003mm | ±0.01mm | Positioning Accuracy Improved by 166% |
| Thermal Deflection | 0.002mm/100°C | 0.015mm/100°C | Excellent Thermal Stability |
| Service Life | 5 million cycles | 500,000 cycles | 10x Longer Life |
| Corrosion Resistance | Excellent | Moderate | Suitable for Corrosive Environments |
Applications:
Semiconductor packaging
Chip packaging precision positioning seat
LED bracket injection mold
Microelectronic connector injection molding
Medical devices
Surgical instrument precision injection molding
Implantable device packaging mold
Medical sensor injection molding seat
Electronic components
Connector precision injection molding
Micro transformer packaging
Circuit board component injection molding
Precision instruments
Optical device injection molding
Sensor housing injection molding
Precision gear injection mold
Customized Services:
Customized hole layouts
Quick response to non-standard dimensions
Specialized surface treatment solutions
Small-batch trial production services
Product Tags:
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Four-hole Coaxial ±0.003mm Precision Positioning Base with Zero Magnetic Interference for Semiconductor Packaging Images
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