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Ceramic welding roller

Date time: 2016-9-12 16:41:04

ceramic welding rollers are made of silicon nitride,which has excellent wear resistance,outstanding fracture toughness and good thermal stability.


Silicon nitride ceramic have excellent wear resistance, outstanding fracture toughness and good thermal stability.It's there features that make it suitable for applications as following: Light bearings; high-speed bearings, high precision bearings, tools for heavy-type ceramic forming, automotive components subject to high stress. And the good thermal shock resistance and high temperature resistance is exploited in welding processes.
1. High thermal conductivity
2. High mechanical strength
3. Thermal shock resistance
4. Creep resistance
5. High temperature resistance

 

Characteristic of Silicon nitride ceramic:

Si3N4

XY Grade

SN-200

SN-300

SN-1000

Component

Si3N4

Si3N4

Si3N4

Color

gray, black

gray, black

yellow

Density (g/cm3)

3.2

3.2

3.2

Hardness(HRA)

91.5

92

92

Compressive strength (MPa)

3000

3800

3000

Flexural strength (MPa)

850

1050

750

Young's modulus

290

300

300

Thermal expansion coefficient (x10-6/)

3.2

3.2

3.2

Coefficient of Thermal conductivity (W/m.k)

30

30

70

Main performance

High temperature strength,excellent wear resistant. Low thermal expansion and light weight.

 

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