polished round head Silicon Nitride Si3N4 ceramic bearing roller
Reputation depends on quality, quality comes from Hard!
Silicon Nitride Ceramic:
In the forming of high-strength steel at high temperatures, EP Good Chemical Stability Insulating Ceramic Substrate Board oil-based lubricants lose their properties and cannot provide a physical mold protection diaphragm in extreme temperature applications. The extreme temperature IRMCO high solid polymer lubricant can provide the necessary protection. As the metal deforms in the stamping die and the temperature continues to rise, EP oil-based lubricants will become thinner, and in some cases will reach the flash point or burn (smoke). IRMCO water-based stamping lubricants generally have Good Chemical Stability Insulating Ceramic Substrate Board a much lower consistency when sprayed on. As the temperature rises during the forming process, it becomes thicker and tougher. In fact, high molecular polymer extreme temperature lubricants are "heat-seeking" and will stick to the metal, forming a diaphragm that can reduce friction. This protective barrier allows the workpiece to be stretched without cracking and bonding when the most demanding workpiece is formed, thereby controlling friction and metal flow. It effectively protects the mold, prolongs the service life of the mold, and improves the strength of stamping. Stamping is mainly classified by Good Chemical Stability Insulating Ceramic Substrate Board process, which can be divided into two categories: separation process and forming process. The separation process is also called punching, and its purpose is to separate the stamping part from the sheet along a certain contour line while ensuring the quality requirements of the separated section. The purpose of the forming process is to make the sheet metal plastically deform without breaking the billet to make a workpiece of the required shape and size. In actual production, multiple processes are often applied to one workpiece. Blanking, bending, shearing, stretching, bulging, spinning, and correction are the main stamping processes.
properties:
High hardness, high strength, wear resistance, corrosion resistance, high temperature(1200°), good thermal diffusivity, good thermal shock resistance(avoid the temperature changing rapidly), good insulativity, low density. The comprehensive properties are best in most of structure ceramic.
Data Sheet↓
Color: Black Grey
Density: ＞3.2g/cm3
Hardness: HRA90
Vickers Hardness (Hv50): ＞1550 HV0.5
Modulus of Elasticity: 290Gpa
Flexural Strength: ＞600Mpa
Compressive Strength: 2500Mpa
Modulus of Elasticity(25°C): 65Gpa
Fracture toughness:＞6.0 Mpam1/2
Maximum Use Temperature: 1200°C
Thermal Conductivity:15-20 W(m.K)
Thermal Expansion Coefficient: ＞3.1 10-6/°C
Thermal Shock Resistance: 500 △T°C
Special Heat Capacity: 700 KJ/kg.K
Dielectric Strength: 1 KV/mm
Dielectric Constant: er
Volume Resistivity(20°C): 1.0*10(12)Ω.cm
Application industry:
Machinery, electronic, semiconductor, chemical, petroleum, smelt.
Specific application:
Welding shaft, electronic substrate, plunger, nozzle, slide guide, diesel parts, metal molding, shaft wheels etc.
Why Choose Us? 1.12 years of professional production industrial ceramics factory 2.High quality products with low price 3.High precision parts with lowest tolerance 4.Short time for production 5.Has a group of experienced, professional and efficient R&D team 6.Has a good reputation in China and abroad. 7.MOQ is not limited, small quantity is welcome.
8.Vigorous team and good after-sales service
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FAQ
Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-30 days if the goods are not in stock, it is according to quantity.
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A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
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A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
