Silicon Nitride (Si3N4) has good high temperature strength, creep resistance and oxidation resistance.In addition, its low thermal expansion coefficient gives excellent thermal shock resistance compared with most ceramic materials.
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precision tolerance silicon nitride Si3N4 ceramic bearing sleeve bush
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Meorient Import & Export Co.LTD
China - Hangzhou
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Hangzhou,Shanghai
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5-10人
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USD,CNY
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45 Day(s)
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--Product Description
Product Description
silicon nitride Si3N4 ceramic bearing sleeve bush
项目 Item | 气压烧结 gas pressure sintering | 热压烧结 hot pressing sintering |
洛氏硬度 Rockwell hardness (HRA) | ≥75 | |
体积密度 volume density(g/cm3) | 3.25 | ＞3.25 |
介电常数 Dielectric constant (ε r20℃，1MHZ) | 8.0(1MHz) | |
电阻率 electric volume resistivity(Ω.cm) | 1014 | 108 |
断裂韧性 breaking tenacity（Mpa m1/2） | 6-9 | 6-8 |
弹性模量 Elasticity modulus （GPa） | 300-320 | 300-320 |
热膨胀系数 thermal expansivity （m/K *10-6/℃） | 3.1-3.3 | 3.4 |
热导率 thermal conductivity (W/MK) | 15-20 | 34 |
韦伯模数 weibull modulus（m） | 12-15 | 15-20 |
The fact that this ceramic material is an extremely low-friction and non-magnetic material with a very low specific weight,
excellent dry running properties and therefore superior emergency operating features is what makes it the material of choice for demanding applications, like ceramic bearing.
Silicon nitride is produced in three main ways; Gas Pressure Sintering silicon nitride (GPSSN) , Hot Isostatic Pressing silicon nitride (HIPSN) and Hot Pressed silicon nitride (HPSN). Three way can pore-free densified compacts with low amounts of sintering additives can be obtained. So they present high strength with high reliability and good heat resistance. These properties make them one of the best candidate materials for heat engine component as well as other industrial fields application.
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Baibo is a modern enterprise management company, who devote themselves to the service of product research and development, construction and maintenance.
Our company has a long history. We own the advanced equipment, a young, energetic, proficient and experienced team of professionals which with leading technology strength, excellent operational management and high-quality services what made us be recognized by customers of the chemical, petroleum, electric power, metallurgy, building material, aerospace, machinery and other industries.
Our company has a long history. We own the advanced equipment, a young, energetic, proficient and experienced team of professionals which with leading technology strength, excellent operational management and high-quality services what made us be recognized by customers of the chemical, petroleum, electric power, metallurgy, building material, aerospace, machinery and other industries.
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FAQ
1.What is your payment term?
We mainly accept T/T, West Union, Credit card and L/C.
Paypal will be available in the near future.
2.Where is your main market?
We have been exported to USA, Korea, UK, France, Russia, Germany, India, Spain, Brazil etc, so far, there is about 94 countries we have been exported, we also get good reputation from our customers.
3.How soon can we get the detailed quotation?
Firstly please kindly tell us the size, material and demand quantity, your drawing with technical requirements is best.
If you only have samples, you can also send us.
We will quote our best price in 24 hours, for simple items, we will quote in 1 hour.
4.What about the package?
We pack with plastic bubble paper, carton box, then safe wooden box outside, we can control the breakage less than 1%.
5.Do you support OEM?
Sure! We offer OEM for many customers all over the world.
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