Zhuzhou Sanxin Cemented Carbide Manufacturing Co., Ltd
Zhuzhou Sanxin Cemented Carbide Manufacturing Co., Ltd
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WC-Ni Zero-magnetic-interference Non-magnetic Tungsten Steel Slider For Semiconductors And Medical Devices
— Magnetic permeability <1.002 · Mirror polished Ra0.2μm · High-precision linear motion solution. This non-magnetic tungsten steel slider, specifically developed for high-precision applications such as semiconductor equipment and medical instruments, utilizes a special WC-Ni non-magnetic formula combined with precision grinding and mirror polishing technology. It achieves stable linear motion with zero magnetic interference, low friction, and high precision in sensitive working environments, completely solving the industry pain points of magnetic adsorption and precision decay in traditional sliders.
Breakthrough Applications of Non-Magnetic Materials:
▸ Material Composition: WC-10Ni Non-Magnetic Hard Alloy
▸ Magnetic Properties:
- Permeability: <1.002
- Remanence: <0.05 mT
- Coercivity: <10 A/m
▸ Physical Properties:
- Hardness: 90-92 HRA
- Density: 14.8-15.0 g/cm³
- Coefficient of Thermal Expansion: 5.5×10⁻⁶/K
- Coefficient of Friction: 0.15-0.18 (with chrome-plated rails)
Manufacturing Excellence:
▸ Machining Process:
- Five-sided precision grinding
- CNC machining
- Diamond grinding mirror finish
▸ Precision Specifications:
- Flatness: ≤0.003mm/100mm
- Parallelism: ≤0.005mm
- Surface Roughness: Ra 0.2-0.4μm
- Dimensional Tolerance: ±0.002mm
Performance comparison analysis:
| Performance Indicators | Non-magnetic tungsten carbide slider | Stainless steel slider | Traditional tungsten carbide slider | Core Advantages |
| Magnetic Permeability | <1.002 | 1.02-1.05 | 1.5-2.0 | Completely eliminates magnetic interference |
| Hardness | 90-92 HRA | 70-90 HRB | 89-91 HRA | 3 times better wear resistance |
| Service Life | >1000km | 200km | 800km | 5 times longer service life |
| Coefficient of Friction | 0.15-0.18 | 0.25-0.35 | 0.18-0.22 | Smoother operation |
| Corrosion Resistance | Excellent | Good | Good | Suitable for harsh environments |
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