Wear Resistant Alumina Ceramic threaded bush sleeve
Reputation depends on quality, quality comes from Hard!
Alumina Ceramics:
Many properties of ceramics obviously depend on the number, size and distribution of pores. Pores in ceramics are divided into open pores and closed pores. Before the sintering of the billet, most of the open pores are reduced, disappeared or turned into closed pores after sintering. Opening the pores reduces the airtightness of the ceramic and increases the chemical corrosion resistance. The pores reduce the thermal conductivity of the ceramic material, increase the dielectric loss, and reduce the breakdown strength. Stomata can also scatter light and reduce the transparency of ceramics. Stomata are also places where stress is concentrated, which may directly become cracks when exposed to external loads, which significantly reduces the strength properties of ceramic materials. When sintering in a hydrogen atmosphere, the hydrogen atom radius is small, which facilitates diffusion and facilitates the elimination of closed pores. Adding 0.25 mg of magnesium oxide to alumina and sintering in a hydrogen atmosphere can obtain a sintered body close to the theoretical density. At present, the most popular products of Alumina Ceramic bushings are the high hardness, abrasion resistance and heat resistance. However, not all environments need these advantages, so they should be targeted. select. The correct installation of alumina ceramic bushings should be closely linked to the equipment. Bearings should be products that can bear the pressure in an all-round way, so that the various parts can cooperate and achieve the ideal working effect. If the ceramic bearing has local contact, it means that there is an error in the installation of this product. If foreign objects intrude during the operation, the bearing will be damaged accordingly. During the use of alumina ceramic bushings, there are related parts needed to support the operation of the bearing. Generally, a layer of synthetic rubber is added between the bearing seat and the outer shell of the bearing. This form can effectively reduce the vibration generated during use, and is very helpful for ensuring the smooth operation of the Ceramic Bushing. In addition, in order to make the structure of the bearing compact and better inspection and maintenance, a flanged connecting sleeve bearing sleeve is more convenient to apply.
properties: High hardness, high strength, wear resistance, corrosion resistance, high temperacture (1600°), good thermal diffusivity, good insulativity, low cost etc.
Data Sheet↓
Color: White/Ivory Density: 3.9g/cm3 Alumina Content: 96% 99% 99.5% Gas permeability: 0 Water Absorption: 0 MONS' Hardness: 82 Vickers Hardness (Hv50): 15.7(1600) Gpa(Kg/mm²) Flexural Strength(20°C): 330Mpa Compressive Strength(20°C): 2000Mpa Fracture Toughness (20°C): 4 MPam1/2 Thermal Conductivity(20°C): 27.5W(m.K) Thermal Expansion Coefficient: 7.6 10-6/°C Thermal Shock Resistance: 200 △T°C
Maximum use temperature 1650°C
Dielectric Strength: ＞10 KV/mm
Dielectric Constant: 9.1er
Dielectric Loss Angle(1MHz): 0.0002-0.0003
Volume Resistivity(20°C): ＞1014Ω.cm
Application industry: Machinery, electronic, chemical, petroleum etc. Specific application: Electrical ceramic substrate, plunger, sealing ring 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
Products Show
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.
