Silicon Nitride Forming Rollers Description
Due to the even performance in high temperature, Si3N4 is a commonly used ceramic material in the metallurgical industry. It has excellent thermal shock resistance due to the microstructure. The creep and oxidation resistance of Si3N4 is also superior, its low thermal conductivity and high wear resistance also make it an outstanding material that can withstand conditions of most industrial applications.
These Si3N4 Forming Rollers have already been applied in roll forming machines which allow complex variable sections to be manufactured, and performance a high profit. Si3N4 Forming Rollers for plastic forming result in lower metal adhesion to the rollers, enhancing product quality.
There are 5 different methods to produce Silicon Nitride including SRBSN, GPSN, HPSN, HIP-SN and RBSN, make the application and working material different slightly. In these 5 methods of production, GPSN is most commonly used to produce Si3N4 components.
Silicon Nitride Forming Rollers Specifications
GPSN
Property
|
Unit
|
|
Color
|
|
Grey
|
Mechanical Properties
|
|
|
Density
|
g/cm3
|
3.21
|
Compressive Strength
|
MPa
|
3000
|
Flexural Strength
|
MPa
|
800
|
Weibull-Modulus m
|
|
15
|
Fracture Toughness KIc
|
MPa m^1/2
|
6.5
|
Young‘s Modulus E
|
GPa
|
320
|
Poisson Ratio
|
|
0.28
|
Hardness Vickers (HV 1)
|
GPa
|
16
|
Thermal Properties
|
Maximum Temperature
|
Inert Gas
|
°C
|
1200
|
Air
|
°C
|
1100
|
Thermal Conductivity
|
|
25
|
@ 20°C
|
W/mK
|
28
|
@ 1000
|
W/mK
|
16
|
Thermal Expansion
|
20–100°C
|
10-6/K
|
2
|
20–1000°C
|
10-6/K
|
3.5
|
Thermal Shock parameter R1
|
K
|
600
|
Thermal Shock parameter R2
|
W/mm
|
15
|
Electrical Properties
|
Resistivity at 20°C
|
Ωcm
|
10^12
|
Resistivity at 800°C
|
Ωcm
|
10^7
|
Dielectric constant
|
1 MHz
|
6
|
Silicon Nitride Forming Rollers Applications
Silicon Nitride can make products including:
- Advanced ceramic tubes
- Bearing rollers
- Ceramic cutting materials
- Cyrol bearing rollers
- Nozzles
- Seal rings
- Tube forming tools
- Mechanical engineering special applications
Silicon Nitride Forming Roller Packing
Our Silicon Nitride Forming Roller is carefully handled during storage and transportation to preserve the quality of our product in its original condition.