Si3N4 Ceramic Ball Manufacture

Si3N4: 1, corrosion-resistant strong acid, alkali, seawater can also be used. 2, high temperature, ultra-wear-resistant, silicon nitride ceramic ball at 8000C, the strength, hardness almost unchanged. 3, non-magnetic, insulation, magnetic field can also be used, non-conductive. 4, light weight, lighter than the average material bearing 1/4, the density of 3.20g / cm3. 5, high rigidity, high strength, the hardness of the bearing than the double, elastic modulus of about 1/3. 6, high-speed rotation, rotating body (ball) light weight, small centrifugal rotation. 7, silicon nitride ceramic ball linear expansion coefficient of 3.2 Ã? 10-6 / K, almost 1/4 of bearing steel. 8, silicon nitride ceramic ball bearing self-lubricating can solve the lubrication caused by pollution and add inconvenience. 9, drug resistance, mechanical strength, damage toughness, low thermal conductivity. Application areas: composite bearings, mechanical seals, chemical pumps, nozzles, auto parts, heat exchanger parts, vacuum equipment and other harsh environments. PRODUCT SILICON NITRIDE BALLS(Si3N4) DIAMETER Φ0.5mmâ??Φ80.0mm GRADE G5-G25 PERFORMANCE 1,59% lighter than the ball, which means less centrifugal force and wear less groove at high speed and acceleration. 2, 44% of the modulus of elasticity, which means less load deformation. 3, Rockwell hardness 92 4, the smaller the coefficient of friction 5, only 1/4 of the thermal expansion coefficient of steel, you can tolerate high temperatures. 6, can achieve excellent surface finish, Ra can be 4 to 6. 7, can withstand high temperature and high hardness and strength up to 1050 ° C 8, never rust, can be no lubricant. The 9, more resistant to corrosion than steel. APPLICATION Silicon nitride ceramic ball can be used for a variety of bearing performance requirements: high-speed / ultra-high-speed bearings, high precision bearings, vacuum bearings, high / low temperature bearings, non-magnetic bearings, high precision ball screw; , High temperature pump, metering pump used as a ball, measuring the ball. Silicon nitride ceramic ball is generally assembled into a hybrid bearing, can be used in high-tech industries such as aviation, defense and other industries, can also be widely used in chemical, metallurgical, medical, food, oil, electronics and other industries.

Silicon nitride balls for bearings.

Si3N4 Ceramic Substrate Manufacturer,Silicon Nitride Ceramic For IGBT,Power Module Substrates,LED Substrate Product Description Silicon Nitrides (Si3N4) Feature An Excellent Combination Of Material Properties. They Are Nearly As Light As Silicon Carbide (SiC), But Their Microstructure Gives Them Excellent Thermal Shock Resistance And Their High Fracture Toughness Makes Them Resistant To Impacts And Shocks. Properties Of Silicon Nitride (Si3N4) Very Low Density (3.21 G/Cm3) Very High Fracture Toughness (7 MPam1/2) Good Flexural Strength (850 MPa) Very Good Thermal Shock Resistance: High Thermal Stress Parameters (569 K) Maximum Operating Temperature In An Oxidizing Atmosphere: 1,300°C Maximum Operating Temperature In A Neutral Atmosphere: 1,600°C Feature High Strength (High Reliability) Similar To The Thermal Expansion Coefficient Of Semiconductors Such As Si, SiC, And GaN High Dielectric Strength High Bending Strength Main Use Of Precision Ceramics For Electronics (Si3N4=Silicon Nitride) Power Module Substrates LED Substrates Submount For Optical Pick-Up Heat Dissipation Substrates The porous silicon nitride ceramic material combines the excellent properties of both the silicon nitride ceramic and the porous ceramic and is a ceramic material having a communicating or closed pore in the body. Porous silicon nitride ceramics have been widely used in aerospace and environmental chemicals due to their special structure and properties, such as low density, high porosity, moderate dielectric properties, high specific surface area, high hardness, and high fracture toughness. Important fields such as biomedicine, national defense, and military.

Zro2: Product, zirconia ceramic balls (zro2 ) Diameter, , 0.5mm80.0mm Grade, g5-g25 Hardeness, >83 Performace, zirconia ceramics have a good range of characteristics, such as high strength, good fracture toughness, high density, good wear resistance, high hardness, and so on. Zirconia ceramic can be used as a good grinding and efficient grinding media. Application, it is widely used in aviation, aerospace, navigation, petroleum, chemical, metallurgy, electric power, automobile, textile, machinery, water pump, medical equipment and so on. Composition, zro2: 95% y2o3: 5% Faq: Q1. Can i have a sample order ? A: yes, we welcome sample order to test and check quality. Mixed samples are acceptable. Q2. What about the production time? A:sample needs 3-5 days, mass production time needs 2-3 weeks for order quantity more than Q3. How do you ship the goods and how long does it take to arrive? A: we usually ship by dhl, ups, fedex or tnt. It usually takes 3-5 days to arrive. Airline and sea shipping also optional. Q4. How to proceed an order ? Firstly let us know your requirements or application. Secondly we quote according to your requirements or our suggestions. Thirdly customer confirms the samples and places deposit for formal order. Fourthly we arrange the production.

Alumina ceramic (Aluminum Oxide or Al2O3) is an excellent electrical insulator and one of the most widely used advanced ceramic materials. Additionally, it is extremely resistant to wear and corrosion. Alumina components are used in a wide range of applications such as electronics, pump components and automotive sensors. UNIPRETEC offers a variety of alumina compositions, including 92% Alumina, 95% Alumina, 96% Alumina, 99% Alumina, 99.5% Alumina and 99.8% Alumina, but the 95% Alumina and 99% are the most widely used materials. Alumina components can be formed by a variety of manufacturing techniques such as uniaxial pressing, isostatic pressing, injection molding and extrusion. Finishing can be accomplished by precision grinding and lapping, laser machining and a variety of other processes.Silicon nitrides (Si3N4) feature an excellent combination of material properties. They are nearly as light as silicon carbide (SiC), but their microstructure gives them excellent thermal shock resistance and their high fracture toughness makes them resistant to impacts and shocks.Unlike traditional ceramics that tend to be hard and brittle, Zirconia offers high strength, wear resistance, and flexibility far beyond those of most other technical ceramics. Zirconia is a very strong technical ceramic with excellent properties in hardness, fracture toughness, and corrosion resistance; all without the most common property of ceramics high brittleness. Its unique resistance to crack propagation and high thermal expansion make it an excellent material for joining ceramics with metals like steel. Due to Zirconias unique properties it is sometimes referred to as the ceramic steel.

Silicon Nitride (Si3N4) is a man made compound synthesized through several different chemical reaction methods. Parts made of Si3N4 are pressed and sintered by well developed methods to produce a ceramic with a unique set of outstanding properties. Silicon Nitride Ceramic is dark gray to black in color and can be polished to a very smooth reflective surface, giving parts with a striking appearance. The very high quality bodies developed for these demanding high reliability applications are available today and can be used in many severe mechanical, thermal and wear applications.What's more, Silicon Nitride Si3N4 is an electrical insulator and is not wet by nonferrous alloys. Silicon nitride is a rather expensive material, but its performance to cost benefit ratio is excellent in the applications where it can outperform the normally utilized materials with long life and very reliable low maintenance operation.Zirconium oxide (Zirconia) is an extremely tough ceramic with a hardness of >9 Mohs which makes it and excellent material for extreme wear, high temperature and harsh environment applications. Zirconia ceramics have remarkable properties of strength, hardness and wear resistance in addition to withstanding attack from molten metal, organic solvents, acids and alkalis. They can also withstand high temperatures for long periods even under severe mechanical stress. Typical Applications include: volatile chemical solutions transportation, jet and diesel engine components, containers for molten metals, high speed cutting tools, high wear components, transistor insulators, dental implants, bearing balls, pump seals, and ball valves. Contact us for more info!

Alumina Oxide ceramic balls may be used at temperatures up to 3180 'F. Ceramic balls are extremely hard, resistant to abrasion, and immune to all furnace atmospheres. Applications, where alumina oxide balls are used, include chemical pumps, down-hole pumps, valves, bearings, gauges, flowmeters, etc.

Bio ceramic for water treatment are mainly used as fillers for water filters. They are proven effective in the reduction of impurities including carcinogens like chloroform and heavy metals in water supplies.