 Mechanical seals |
| Permanent magnets |
| Rare-earth magnet |
| Non rare-earth magnet |
| Motor Industry |
| Magnetic Assembly |
| Die Casting Aluminium |
| Our Patent Products |
|
Established in 1998, China Ningbo LIHE INC. is a professional manufacturer and exporter of all kinds magnets, alpha silicon carbide and mechanical seals, dedicated to satisfying customers by providing wide range magnetic products and relative services. Through years of endeavors, the company has already become a leading manufacturer in magnets, alpha silicon carbides and mechanical seals. |
| Silicon carbide |
 |
| Silicon carbide has good corrosion resistance, high hardness, excellent thermal conductivity properties and resistance to temperature flucturation. It can be used wildly in chemical industry, shipping, automobile and other fields. Lihe provide both the reachion silicone carbide and pressureless silicone carbide. All the rings which outer diameter from 8mm to 400mm is doable. |
| Main Performance Index of Sintered Reaction Silicon Carbide |
Item |
|
Reaction sintered SiC |
Pressureless sintered SiC |
|
|
Value |
Value |
Purity |
% |
>=90 |
>97 |
Density |
G/cm3 |
3.05 |
3.05-3.15 |
Hardness |
|
110-125(HS) |
>92(HRA) |
Elastic Modulus |
Gpa |
420 |
400 |
Poisson Ratio |
|
0.15 |
0.14 |
Bending Strength |
Mpa |
350-450 |
400-580 |
Compressive Strength |
Mpa |
3000 |
3900 |
Thermal Conductivity |
Wm/k |
35-110 |
125.6 |
Coefficient of Heat Expansion |
J/oC |
4.3x10-6 |
4.02x10-6 |
Heat Resistance |
oC |
1300 |
1650 |
mechanical seal
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