insulating wear resistant Silicon Nitride ceramic washer gasket spacer
Reputation depends on quality, quality comes from Hard!
Silicon Nitride Ceramic:
In the Neolithic Age, my country already had painted pottery and black pottery in rough and simple style. In the Shang Dynasty (16th century BC-11th century BC) glazed pottery and hard glazed pottery with the characteristics of porcelain had appeared. In the Wei and Jin dynasties (220-420 AD), my country had completed the great invention of firing solid porcelain with high heat. The production technology and artistic creation of ceramics in the Tang Dynasty (618-907 AD) reached a very high level. It is sold to Japan in the east and India, Persia and Egypt in the west. They have played an important role in international cultural exchanges and won the title of "Porcelain Country". The ceramics of the Ming and Qing Dynasties (1368-1911 AD) surpassed the previous generations technically from billet making, decoration, glazing to firing. The history of the development of Chinese ceramics is long. From the firing of the most primitive pottery in the early Neolithic Age, to the invention of porcelain and its widespread application, technology and art have been continuously advancing; in the process of adapting to the needs of people's survival and life, the types of ceramics fired are increasing, and the styles In changes, the internal quality is constantly improving. The handicraft manufacturing technology of ceramics contains rich scientific and artistic connotation, and its manifestation is mainly displayed through modeling and decoration, texture and color. The transformation process of ceramic production from raw materials to finished utensils must be completed by the use of corresponding technology. This is the process of people producing material materials and the process of creatively developing and gradually forming traditional crafts.
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
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A: We are factory.
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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.