Zhuzhou Sanxin Cemented Carbide Manufacturing Co., Ltd
Zhuzhou Sanxin Cemented Carbide Manufacturing Co., Ltd
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Precision Blank Density ≥14.8g/cm³ Core Material For Manufacturing Special Motor Rotors
The rotor cavity blank prepared using WC-Ni-based non-magnetic tungsten carbide material, through isostatic pressing and non-magnetic formulation technology, provides a high-quality base material with zero magnetic interference, high density, and near-net-shape forming for subsequent processing of rotors of high-speed motors and precision instruments, solving the problems of magnetic loss and processing deformation in the manufacturing of precision rotors using traditional materials.
Material-science:
▸ Material Composition: 90% WC + 10% Ni (Non-magnetic formula)
▸ Magnetic Properties: Permeability < 1.001, Remanence < 0.02 mT
▸ Physical Properties:
- Density: 14.8-15.1 g/cm³
- Hardness: 90-92 HRA (Sintered State)
- Coefficient of Thermal Expansion: 5.3 × 10⁻⁶/K
▸ Processing Characteristics:
- Isostatic Pressing Density Uniformity > 99%
- Controllable Sintering Shrinkage: 12.5 ± 0.3%
- Machining Allowance: 0.5-1.0 mm per side
Blank-specifications:
▸ Cavity Types:
- Cylindrical Cavity: Φ10-100mm
- Stepped Cavity: Multi-level complex structure
- Irregular Cavity: Custom-made according to drawings
▸ Dimensional Accuracy:
- External Tolerance: ±0.1mm
- Cavity Position Accuracy: ±0.05mm
- Blank Weight: 50-2000g
Product Specifications Table:
| Parameter Type | Standard Range | Accuracy Class | Inspection Method |
| Outer Diameter of Blank | Φ20-150mm | ±0.1mm | Digital Calibrator |
| Cavity Diameter | Φ10-120mm | ±0.15mm | Coordinate Measuring |
| Height of Blank | 20-100mm | ±0.2mm | Height Gauge Inspection |
| Weight Deviation | ±1% | ±0.5% | Precision Balance |
| Density Uniformity | >99% | >99.5% | Water Immersion Test |
The data in the table is for reference only; custom drawings are available upon request.
Application:
Aerospace:
Satellite attitude control flywheel rotors;
High-speed rotors for aircraft motors;
Gyro rotors for navigation systems
Medical Equipment:
MRI equipment drive rotors;
Centrifuge core rotors;
Special rotors for medical pumps
Precision Industry:
High-speed electric spindle rotors;
Precision instrument balancing rotors;
Core rotors for special motors
High-end Scientific Research:
Low-temperature experimental equipment rotors;
High-vacuum environment rotors;
Precision measuring instrument rotors
