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Si3N4 Riser Stalk

Si3N4 Riser Stalk

Si3N4 Silicon Nitride Riser Stalk introduction Sialon,silicon nitride,alumina and silicon carbide are known as engineering ceramics. Among them, silicon nitride has the highest thermal shock resistance. Thus, it makes handling and preheating control easier.Silicon nitride riser tube/stalk has...

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Si3N4 Silicon Nitride Riser Stalk introduction

Sialon,silicon nitride,alumina and silicon carbide are known as engineering ceramics. Among them, silicon nitride has the highest thermal shock resistance. Thus, it makes handling and preheating control easier.Silicon nitride riser tube/stalk has been in use instead of cast iron and old ceramics in molten aluminum.

Si3N4 Silicon Nitride Riser Tube Stalk Features:

1.Corrosion resistance
Outstanding corrosion resistance to molten aluminum alloys and flux contamination free.
2.Oxidation resistance
Oxidation rarely accurs at operating temperature(up to 800 C), which allows hi-cera to maintain stable performance for a long service life.
3.Thermal shock resistance
Superior thermal shock resistance allows hi-cera protection tubes to be inserted in molten aluminum directly with simple preheating.
4.Mechanical strength
The highest strength among ceramics allows a thin wall thickness.
5.Wear resistance
Excellent wear resistance gives degassing rotor shafts a long service life at a high speed revolution.
6.Acid ressitance
Exceptional acid resistance against acids such as hydrochloric acid and sulfuric acid permits removal of sticking matter on the surface with such acids.

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Silicon Nitride Thermocouple Protection Tube

Production process

A:)Raw materials

B:) deironing

C:)Mould

D:)Pressing

E:)drying

F:)Sintering

G:)Coating

H:)Checking

I:)Assambling

J:)Checking again

K:)Packing

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QUALITY ASSURANCCE

Strict contract auditing invloved all departments to assure the feasibility of each order.

Process design and validation before bulk production.

Strictly control on all raw and auxiliary materials, All raw materials reach the world advanced level.

On-site inspection to all processes, inspection record keep traceable for 3 years.

All inspectors are skilled with international certificates.

Qualified WPS and professional welders guarantee welding quality.

100% inspection of finished sprouts before shipment.

Advanced and complete testing and inspection equipment: NDT, metal Microscope, impact tester, hardness tester...

Regular training for inspection staff

Our services

Pre-sale services:

1.Providing professional technical support.
2.Send the product catalog and instruction manual.
3.If you have any question PLS contact us online or send us email, we promise we will give you a reply at the first time!

4.Personal call or visit are warmly welcome.
Sale of services:

1.We promise honest and fair, it's our pleasure to serve you as your purchasing consultant.
2.We guarantee punctuality, quality and quantities strictly implement the terms of contract...
After-sales service:
1.Where to buy our products for one year warranty and life long maintenance.

2.24-hour telephone service.
3.A large stock of components and parts, easily-worn parts.

Customer questions

1. 24-hour Online service

Please feel free to contact us. Our sales team will provide you with 24 hours better pre-sale,

2. Competitive price

All of our products are supplied directly from factory. So the price is very competitive.

3. Warranty

All products have a one-two years warranty.

4. Distributor

The company now recruit distributor and agent all over the world. Prompt delivery and professional after-sales service are our priority, which makes us to be your reliable partner.


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