High hardness: Mohs hardness ≥9.5, strong wear resistance.
Corrosion resistance: Resistant to acid, alkali and chemical media erosion.
High temperature resistance: the working temperature can reach 1600℃.
Low friction: low friction coefficient, reducing wear.
High strength: high mechanical strength and can withstand large loads.
Thermal stability: low thermal expansion coefficient (about 4.4×10⁻⁶/℃).
Ⅰ.
Silicon carbide bushing product introduction:
Silicon carbide bushing is a high-performance ceramic component made of silicon carbide (SiC) material, which has excellent wear resistance, corrosion resistance and high temperature stability. Its main purpose is to reduce friction and wear during shaft movement, and is suitable for mechanical products with high precision and sealing requirements, such as high-pressure pumps, magnetic pumps, etc.
Ⅱ.
Application fields.
Grinding silicon carbide bushings are widely used in the following harsh working conditions:
1. Chemical industry: strong acid, strong alkali, corrosive fluid environment.
2. Mechanical seal: high-speed, high-load pump valve system.
3. High temperature environment: metallurgy, ceramics, energy equipment.
4. High wear conditions: mortar pumps, mining machinery, etc.
5. Special industries: food, pharmaceuticals, nuclear industry, etc.
Ⅲ.
Compared with other material bushings, silicon carbide bushings have the following advantages:
vs. alumina ceramic: better thermal shock resistance and less prone to radial cracks.
vs silicon nitride ceramic: stronger oxidation resistance, suitable for long-term high temperature environment.
vs zirconia ceramic: higher hardness, more suitable for high-speed sliding parts.
vs metal material: wear resistance is increased by 5-20 times, and corrosion resistance is significantly improved.
Ⅰ.Technical parameters
Parameter name | reaction sintering type | Pressureless sintering type |
hardness(HS) | ≥110 | ≥115 |
apparent porosity(%) | <0.3 | <0.2 |
Bulk density(g/cm³) | 3.00-3.05 | >3.10 |
Compressive strength(Mpa) | >2200 | >2500 |
Bending strength(Mpa) | >350 | >380 |
Use temperature(℃) | 1300 | 1400 |
Silicon carbide content(%) | ≥90 | ≥98 |
Free silicon content(%) | ≤10 | ≤1 |
elastic modulus(Gpa) | ≥400 | ≥410 |
Supports custom specifications.
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