Cemented carbide has excellent characteristics such as high hardness, high strength, wear resistance, heat resistance and corrosion resistance, especially the hardness of cemented carbide is extremely high. Even at a high temperature of 500 degrees Celsius, the hardness remains basically unchanged, and it can also maintain a high hardness at a high temperature of 1000 degrees Celsius.Therefore, cemented carbide has become the best material for making sealing rings.Tungsten carbide sealing ring has the characteristics of wear resistance and corrosion resistance, and has good sealing performance. It is widely used in mechanical seals in oil, chemical and other industries.
The processing process of the mechanical seal ring:
1. Using high-purity raw materials, using a full hydrogen reduction furnace to reduce tungsten oxide to produce high-purity tungsten powder.
2. Low-pressure sintering eliminates the internal voids of the alloy, thereby obtaining a high-hardness and high-strength blank with good compactness.
3. Extruded by equipment.
4. Grinding and polishing the hard alloy sealing ring.
Features of Cemented carbide sealing ring:
1. High precision, superior sealing
2. High corrosion resistance, longer service life, more durable sealing performance
3. High strength, high hardness, strong compression resistance
4. Good wear resistance, impact resistance and toughness
Cobalt Binder Grades
Grade | Binder (Wt %) | Density (g/cm3) | Hardness (HRA) | TRS (>N/mm²) |
YG6 | 6 | 14.8 | 90.0 | 1520 |
YG6X | 6 | 14.9 | 91.0 | 1450 |
YG6A | 6 | 14.9 | 92.0 | 1540 |
YG8 | 8 | 14.7 | 89.5 | 1750 |
YG12 | 12 | 14.2 | 88.0 | 1810 |
YG15 | 15 | 14.0 | 87.0 | 2050 |
YG20 | 20 | 13.5 | 85.5 | 2450 |
YG25 | 25 | 12.1 | 84.0 | 2550 |
Nickel Binder Grades
Grade | Binder (Wt %) | Density (g/cm3) | Hardness (HRA) | TRS (>N/mm²) |
YN6 | 6 | 14.7 | 89.5 | 1460 |
YN6X | 6 | 14.8 | 90.5 | 1400 |
YN6A | 6 | 14.8 | 91.0 | 1480 |
YN8 | 8 | 14.6 | 88.5 | 1710 |
