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:

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