smooth Silicon Nitride ceramic bearing rollers rods plungers
Reputation depends on quality, quality comes from Hard!
Silicon Nitride Ceramic:
The chemical composition must meet the performance requirements of ceramic products. The raw materials should be fully analyzed and compared in terms of chemical composition to find out the performance characteristics of each raw material, depending on whether it has or is close to the required performance of the product. The properties and ratio of the raw materials used should be able to meet the final physical performance requirements of the production process and products. The purity of the raw materials, formability, firing performance, color after firing, strength, transparency, and thermal stability after firing should be considered. Sometimes, certain changes are made to the chemical composition of the blank to meet the physical performance requirements of the product. Fully consider the scale of existing factories and specific production conditions. Can not change the existing production process parameters and invest a lot of money to purchase equipment and technical transformation due to the use of formulas. When designing blank formulations, the process parameters should be investigated from the aspects of raw material preparation, forming and firing, and use this as the fundamental condition. Only such a formulation has practical and scientific value. To consider economic rationality. The raw materials should be taken locally, used in a quantity, rather than near and far away, and make the best use of the material.
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.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
