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Si3N4 Stopper Pipe

Si3N4 Stopper Pipe Introduction 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. Huajing silicon nitride ceramic has high density and abrasion...

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Si3N4 Stopper Pipe Introduction

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. Huajing silicon nitride ceramic has high density and abrasion resistance, it is most suitable material used for low pressure die casting. Huajing silicon nitride stopper pipe has excellent ability to keep up the pressure, at the same time, it also has good accuracy and impermeability.

Advantage of Silicon Nitride Stopper Pipe

eaturing high density and abrasion resistance, fine silicon nitride ceramic is suitable material used for low pressure die casting. silicon nitride (Si3N4) sealing pipe/stopper pipe has the most favorable properties of protectiveness, impermeability and excellent precision. 
The life time of silicon nitride (Si3N4) sealing pipe/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. 
Si3N4 ceramic stopper pipe for Aluminium Casting Main 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 resistance 
Exceptional acid resistance against acids such as hydrochloric acid and sulfuric acid permits removal of sticking matter on the surface with such acids. 
Our Advantage

1.We has two factories of 50000 square meters and totally 300 employees to promise the Silicon Carbide and Silicon Nitride Ceramics In Stock best quality control;

2.According customers’ demand to design special size;

3.Our motivation is --- customers’ satisfaction smile;

4.Our believing is --- pay attention to every detail;

5.Our wish is ----perfect co-operation.

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