insulated 96 Alumina Ceramic laser cutting strip substrate
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Alumina Ceramics:
Main factors affecting the adsorption performance of activated alumina
(1) Particle size: The smaller the particle size, the higher the adsorption capacity, but the smaller the particle size, the lower the particle strength, which affects its service life.
(2) PH value of raw water: When the pH value is greater than 5, the lower the pH value, the higher the adsorption capacity of activated alumina. (3) Initial fluorine concentration of raw water: The higher the initial fluorine concentration, the larger the adsorption capacity.
(3) Raw water alkalinity: The concentration of bicarbonate in raw water is high, and the adsorption capacity will decrease.
(4) Chloride and sulfate ions.
(5) Effect of arsenic: Activated alumina has an adsorption effect on arsenic in water. The accumulation of arsenic on activated alumina causes a decrease in the adsorption capacity of fluoride ions, and it is difficult to elute arsenic ions during regeneration.
How to regenerate activated alumina
The regenerant is a sodium hydroxide solution, and an aluminum sulfate solution can also be used. The solution concentration of sodium hydroxide regenerant is 0.75%-1%, and the consumption of sodium hydroxide can be calculated as 8-10g solid sodium hydroxide required for removing 1g of fluoride. The amount of regeneration liquid is 3-6 times of the volume of filter material. . The solution concentration of the aluminum sulfate regenerant is 2-3%, and the consumption of aluminum sulfate can be calculated by using 60-80 g of solid aluminum sulfate per 1 g of fluoride removed.
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
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