μ-grade non-magnetic tungsten carbide core ring with a magnetic permeability of <1.002 · Special anti-interference material for precision instruments
When precision measurement encounters magnetic field interference—
This non-magnetic core ring, precision-manufactured using nickel-bonded tungsten carbide (WC-Ni), undergoes a special demagnetization process to completely eliminate the magnetic interference issues associated with traditional tungsten steel parts. This ensures zero magnetic interference, high precision, and long-life stable operation in magnetic field-sensitive environments such as MRI medical equipment and semiconductor manufacturing.
Non-Magnetic Principle: A Breakthrough in Materials Science
▸ Non-Magnetic Mechanism:
- Nickel-based binder phase replaces the traditional cobalt phase
- Magnetic permeability controlled to <1.002
- Residual magnetization <0.05 mT
▸ Matrix material: 90% WC + 10% Ni, non-magnetic formula
▸ Hardness: 92 HRA (Vickers hardness 1800 HV)
▸ Density: 14.8-15.1 g/cm³
▸ Resistivity: 0.8-1.2 μΩ·m
Applications:
Consumer electronics manufacturing
Mobile phone camera module soldering
Micro connector soldering
TWS earphone component soldering
Semiconductor packaging
BGA chip packaging soldering
CSP chip-scale packaging
Wafer-level soldering
Automotive electronics
Automotive sensor soldering
ECU control unit soldering
In-vehicle camera modules
Medical electronics
Medical sensor soldering
Implantable device packaging
Diagnostic device manufacturing
Product Specifications:
| Parameter Type |
Specification Value |
Accuracy Standard |
| Nominal Aperture |
450µm |
±1µm |
| Aperture Circularity |
≤0.5µm |
(inspected by industrial endoscope) |
| Flow Channel Roughness |
Ra ≤0.1µm |
(certified by white light interferometry) |
| Material Hardness |
91.5 HRA |
(Rockwell hardness tester) |
| Heat Deflection |
≤0.001mm/100°C |
(tested by thermal expansion tester) |
The above data is for reference only. Customization is possible upon request.
Product Tags:
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Non-magnetic Tungsten Carbide Core Ring with Magnetic Permeability <1.002 and Residual Magnetization <0.05 mT Made from 100% Virgin Material Images
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