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Home / Products / SG-28 Silicon Nitride Ceramic Material / SG-28 Silicon Nitride Ceramic Heater Protection Tube Supplier
  • SG-28 Silicon Nitride Ceramic Heater Protection Tube

SG-28 Silicon Nitride Ceramic Heater Protection Tube

SG-28 silicon nitride ceramic heater protection tube has strong resistance to high temperature, corrosion, and thermal shock in molten aluminum. It can withstand the heat load of heating elements or burners for a long time and has a service life of more than one year. Silicon nitride does not react with molten aluminum, so can guarantee its purity.

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  • SG-28 Silicon Nitride Ceramic Heater Protection Tube
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Advantages And Features

1. Long service life and low maintenance cost
Due to the advantages of silicon nitride ceramics, such as high-temperature strength, strong heat shock resistance, and good corrosion resistance, the service life is generally more than one year, thereby reducing the replacement and maintenance cost.

2. Easier installation and maintenance
Silicon nitride ceramics can maintain flexural strength above 500MPa and good heat shock performance below 800 ° C, so the wall thickness of the product can be thinner, coupled with its low infiltration with molten metal, so there is no need to brush the surface coating, but also make the installation and maintenance of porcelain parts easier.

3. No pollution to liquid aluminum
The infiltration of silicon nitride to molten metal is low, and it will hardly react with liquid aluminum, so it will not cause secondary pollution to liquid aluminum, which is of great help to stabilize the quality of casting products.

Details Parameters

Performance Parameter Si3N4
Density（g/cm3) Density 3.2-3.4
Porosity（%） Porosity <0.5
Vickers hardness Vickers Hardness 15
Fracture toughness(Mpa•m1/2) Fracture Toughness 8.04
Bending strength(Mpa) Bending Strength 791
Young's modulus Young's Modulus 290
Thermal conductivity(W/m•K) Thermal Conductivity 29.9
Coefficient of thermal expansion(10-6K-1） Thermal Expansion Coefficient 3.2
Maximum operating temperature（℃） Max Operation Temperature 1200
Thermal shock resistance Thermal shock resistance Excellent
Non-stick property Non-stick performance Excellent

Precautions For Use

Zhejiang Shangguijuli Special Material Technology Co., Ltd is professional China Silicon Nitride Heater Protection Tube supplier and wholesaler in China, We focus on silicon nitride ceramic material and aluminum titanate material products. We also provide consulting services on ceramic materials for the aluminum processing industry, based on long-term experience, development work and information obtained from customer interactions. Welcome to visit our Silicon Nitride Ceramic Heater Protection Tube company.

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About Us
Zhejiang Shangguijuli Special Material Technology Co., Ltd.
Zhejiang Shangguijuli Special Material Technology Co., Ltd.
Founded in 2018, Zhejiang Shangguijuli Special Material Technology Co., Ltd.（SGJL for short) is a high-tech Industrial Silicon Nitride Heater Protection Tube Supplier and company which specializing in R&D and production of special ceramic materials. After five years of rapid development, SGJL has become a high-end material backbone supplier specializing in serving the global aluminum processing industry. We offer and wholesale Silicon nitride ceramic Heater Protection Tube because Silicon nitride does not react with molten aluminum, so can guarantee its purity which mainly serve the global aluminum processing industry.

SGJL’s mission is to provide various high-end material solutions for the global aluminium processing industry and even the non-ferrous metal processing industry. And we will rely on our outstanding technological research and development capabilities to continuously create an advanced material foundation for the upgrading of the entire industry.
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