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Wear Resistance Industrial Ceramic Coated Pistons Alumina Plunger Yellow Color

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Wear Resistance Industrial Ceramic Coated Pistons Alumina Plunger Yellow Color

Wear Resistance Industrial Ceramic Coated Pistons Alumina Plunger Yellow Color
Wear Resistance Industrial Ceramic Coated Pistons Alumina Plunger Yellow Color

Large Image :  Wear Resistance Industrial Ceramic Coated Pistons Alumina Plunger Yellow Color

Product Details:
Place of Origin: CHINA
Brand Name: KAMTAI
Certification: SGS
Model Number: KTALP17
Payment & Shipping Terms:
Minimum Order Quantity: 10PCS
Price: Negotiable
Packaging Details: CARTON BOX AND PLYWOOD PALLET
Delivery Time: 25 DAYS AFTER PAYMENT
Payment Terms: L/C, T/T, Western Union, MoneyGram,PAYPAL
Supply Ability: 1000PCS/ MONTH

Wear Resistance Industrial Ceramic Coated Pistons Alumina Plunger Yellow Color

Description
Bulk Density: ≥3.7 G/cm3 Compressive Strength @ 25 C: 2229
Size: Customize Coefficient Of Thermal Expansion @ 25-1000 C: 7.9
Shape: Tube Type: Ceramic Tube
High Light:

porous ceramic disc

,

alumina ceramic tube

 

1. Description 

Al2O3 is an electrical insulator but has a relatively high thermal conductivity (30 Wm−1K−1) for a ceramic material. Aluminium oxide is insoluble in water. In its most commonly occurring crystalline form, called corundum or α-aluminium oxide, its hardness makes it suitable for use as an abrasive and as a component in cutting tools.

Aluminium oxide is responsible for the resistance of metallic aluminium to weathering. Metallic aluminium is very reactive with atmospheric oxygen, and a thin passivation layer of aluminium oxide (4 nm thickness) forms on any exposed aluminium surface. This layer protects the metal from further oxidation. The thickness and properties of this oxide layer can be enhanced using a process called anodising. A number of alloys, such as aluminium bronzes, exploit this property by including a proportion of aluminium in the alloy to enhance corrosion resistance. The aluminium oxide generated by anodising is typically amorphous, but discharge assisted oxidation processes such as plasma electrolytic oxidation result in a significant proportion of crystalline aluminium oxide in the coating, enhancing its hardness.

Aluminium oxide was taken off the United States Environmental Protection Agency's chemicals lists in 1988. Aluminium oxide is on EPA's Toxics Release Inventory list if it is a fibrous form.

 

The applications for alumina advanced ceramics are heavy-duty forming tools, substrates and resistor cores in the electronics industry, tiles for wear protection and ballistics, thread guides in textile engineering, seal and regulator discs for valves, heat-sinks for lighting systems, protection tubes in thermal processes or catalyst carriers for the chemicals industry.

 

2. Technical Property 

Property Units  
Al2O3 Content % 96 98 99.5 99.7
Density g / cm3 3.70 3.80 3.90 3.92
Color - White White Ivory Ivory
Compressive Strength @ 25 C Mpa 2229 2091 2512 2350
Tensile Strength @ 25 C MPa 200 200 248 252
Flexural Strength @ 25 C MPa 331 276 324 320
Elastic Modulus @ 25 C GPa 290 331 366 380
Hardness : Knoop Rockwell (Gpa) Kg/mm2
R45N
(11.7) 1196
79
(12.5) 1276
77
(14) 1428
85
(15) 1510 90
Thermal Conductivity @ 25 C W / m-Deg K 20.8 28.1

 

30.7

31.6
Coefficient of Thermal Expansion @ 25-1000 C 1 X 10-6 /
Deg C
7.9 8.5 8.1 8.0
Specific Heat @ 25 C cal / g / Deg C .184 .184 .182 .180
Maximum Working Temp. Deg C 1650 1650 1700 1700
VolumeResitivity @25C @700 C ohm-cm
ohm-cm
1 X 10-13
1 X 10-8
1X 10-13
2.2 X 10-9
1 X 10-13
6 x 10-7
1 X 10-13
6 x 10-7
Dielectric Strength
(@Thickness) 100Mils
ac volts
per mil
350
340
335 330
Dielectric Constant 1Mhz
@25C
e' / eo 8.6 9.4 9.7 10.0
Dissipation Factor 1 Mhz
@25C
Tan Delta .0004

 

.0003

 

.0003

.0002

 
 
 
 

 

 

 

 

 
 
 
 
 

Contact Details
Yixing City Kam Tai Refractories Co.,ltd

Contact Person: tao

Tel: +8618351508304

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