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Si3N4 Stopper Tube

Si3N4 Ceramic Stopper Tube introduction silicon nitride ceramic has high density and abrasion resistance, it is most suitable material used for low pressure die casting. The stopper pipe has the most favorable properties of protectiveness, impermeability and excellent precision. The life time of...

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Product Details

Si3N4 Ceramic Stopper Tube introduction

silicon nitride ceramic has high density and abrasion resistance, it is most suitable material used for low pressure die casting. The stopper pipe has the most favorable properties of protectiveness, impermeability and excellent precision.
The life time of the stopper pipe can be used for many years if keeping regular maintenance. Otherwise, incorrect operation and less attention to a maintenance will reduce the life time.

Charcteristics of silicon nitride riser tube

Item

Material

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・m1/2

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

Heart Shock Resistance

800

Maximum Available Tempereture

1200 

Si3N4 ceramic stopper pipe for Aluminium Casting applications

With the popularization of continuous casting process, the importance of stopper pipe is recognized by foundry industry. The impermeability is very important when used for low pressure die casting. Our silicon nitride ceramic has high density and abrasion resistance, it is most suitable material used for low pressure die casting. Our silicon nitride stopper pipe has excellent ability to keep up the pressure, at the same time, it also has good accuracy and impermeability.

FAQ

1. Q:As the shipping period will take long time, how can you make sure the product won’t be broken?

A:Our product is film wrapped, to make sure our product can be delivered to our customer smoothly, we will use the steel wire to fix the package ,

2. Q: May i know which payment will be accepted by your company?

A:So far 100%T/T before shipment, and 50% deposit paid by T/T, balance paid by L/C are available.

3. Q:About the after-sale service, how can you solve the problems occurred of your overseas customer in time?

A:The warranty of our products is normally 3 months, during this period, we will arrange the international express immediately, to make sure the replace parts to be delivered as soon as possible.

Packaging

We ensure to offer safe package and fast delivery for all our customers .

1.for big size cylinders : plastic pallet

2.for small size cylinders :polywood case with inner foam

Shipping

1.By sea / By air / By courier (DHL, UPS, TNT, FEDEX, EMS express are available )

2.As customized requirements

 


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