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Shanghai Vital Industry Co., Ltd.
VITAL
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Ceramic Seal Ring

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Shanghai Vital Industry Co., Ltd.
Shanghai Vital Industry Co., Ltd.

Ceramic Seal Ring

Place of Origin : China
Brand Name : VITAL
Delivery Time : 14 days
Payment Terms : FOB
MOQ : 1 TON
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Have the excellent performance of Good sealing, Excellent Resistant-Corrosion, High-Temperature Resistance , High Mechanical Strength, High hardness,Stable chemical property,Wear Resistant, High Thermal Conductivity, Good Self-Lubrication,High purity alpha alumina and low silica content, Small Tolerance Range , Long Time Warranty, Stably and Professional Quality Control.

Surface Treatment: Polished, Alumina Purity: 95% to 99.5%, Color: White, Creamy.

Sizes: Various sizes available


Packaging: Standard carton boxes and pallets .


(The Alumina Ceramic seal ring is sintered into the friction material after high temperature.

Alumina can resist the general corrosion medium except hydrofluoric acid and dense alkali. But fragility of Alumina is very high, so it can be fractured with great changing temperature.

Have the property of good sealing, excellent resistant-corrosion, resistant-high-temperature, high mechanical strength, wear resistant, high thermal conductivity, good self-lubrication,used as seal faces, bearings and tubes in spacecraft, machinery, metallurgy, printing and dyeing, foodstuff, pharmaceutical, auto industry and so on. When the sic faces are combined with graphite faces the friction is the smallest and they can be made into mechanical seals which are able to work in highest working requirements. )

Technology Spec.:


95%, 96%, 99%, 99.5%, 99.6% Alumina Ceramic Ring

Density

g/cm3

≥3.68

Water absorption

%

O

Sintering temperature

°C

1600-1800

Hardness

HV

≥1500

Flexural strength

Kgf/cm2

3000

Compressive strength

Kgf/cm2

25000

Fracture toughness

Map.m3/2

3~4

Maximum temperature

°C

1800

Coefficient of thermal expansion

/°C

8*10-6

Heat shock

T(°C)

220

Thermal conductivity

W/m.k(25-300°C)

25 14


20°C


>1012

Volume resistivity

100°C

>.cm

1012-1013


300°C

>1010

Insulation breakdown strength

KV/mm

18

dielectric constant

100MHz(E)

9.5


Product Tags:

seal

      

ceramic ring

      

alumina ceramic

      
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