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Si3N4 Degassing Rotor

Si3N4 Degassing Rotor Introduction Si3N4 material is suitable for molten aluminum liquid degassing pipe and rotor. According to actual working condition, our company is able to make optimized design of rotor impeller structure to achieve better degassing effect. Charcteristics of silicon nitride...

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Product Details

Si3N4 Degassing Rotor Introduction

Si3N4 material is suitable for molten aluminum liquid degassing pipe and rotor. According to actual working condition, our company is able to make optimized design of rotor impeller structure to achieve better degassing effect.

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Charcteristics of silicon nitride riser tube


Unit

Silicon Nitride

Bulk density

g/cm3

3.2

Water absorption

%

0

Flexural strength

MPa

750

Young's Modulus of Elasticity

Gpa

280

Fracture Toughness

MPa・m 1/2

6.5

Poisson's Ratio

_

0.28

Vickers Hardness

Gpa

13

Coefficient of Linear Thermal Expansion

×10-6/℃

3.4

Thermal Conductivity

W/(m・k)

30

Specific Heat

J/(g・k)

0.65

Volume Resistivity

Ω・cm

>1014

Heat Shock Resistance

800

Maximum Available Temperature

1200

Silicon nitride degassing rotor and shaft Features

1.In order to remove hydrogen from molten aluminum, a silicon nitride pipe is used to feed nitrogen or argon, while silicon nitride rotor is used to stir up and disperse the gas bubble, and then take the Nitrogen out with the bubble throughout the molten bath, thus get the result of hydrogen remove.

2.The high-temperature mechanical strength and resistance to contact fatigue of Si3N4 material assures reliable, stable and long operation of rotor in high speed rotation.

3.Unlike graphite, silicon nitride is hardly volatilized by oxygen at elevated temperature. This permits long operating life. And this character is most popular in the casting industry of aluminum alloy.

4.High thermal shock performance allows the pipe and rotor to insert in and pull out repeatedly from molten aluminum in operation. Pipes and rotors will not be cracked and damaged. Therefore, operation and maintenance become very convenient.

FAQ

1, How about your QC system?

We have ISO9001 certification,we do quality control after goods is finished.

2, What’s the MOQ?

1piece or 1set.

3, What’s the delivery time?

15~30days, it depends on your quantity.

4, Can you provide sample?

Yes!

5, Are you manufacturer or trading company?

We are manufacturer in Zibo city, China. Welcome to visit our factory!


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