Pingxiang Jinhui Special Ceramics Co., Ltd

Uniform Social Credit Code (USCC):913603225662841615 Pingxiang, Jiangxi, China www.jhceramics.com
Alumina ceramic foam
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Powder preparation
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Molding
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Sintering process
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processing technology
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Alumina ceramic foam

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Product Details

Ceramic foam is a low bulk density (0.25-0.65) g/cm3, the high porosity (60-90)% with a three-dimensional network skeleton structure of the new industrial ceramics. As these products have a high temperature resistance, chemical corrosion and interconnected pore cavity has a large specific surface area, has been widely used in molten metal filtration, high-temperature flue gas purification, chemical filtration, carrier, and solar thermal conversion and other fields. 
Especially in the metal melt filtration in a number of domestic and foreign enterprises in the gating system from the screen clean, straight-hole honeycomb ceramic tiles purification, to the current ceramic foam filters, filtration products using this proven to reduce the rate of casting scrap improve the mechanical properties of casting to extend the metal cutting tool life increases, reducing overall costs significant role. 
First, the use of Performance Introduction 
1: filter casting inclusions to reduce the casting of the gas, reduce the flow of metal during the process of filling degree, reducing casting defects in the surface, significantly reducing the rate of casting scrap. 
2: Increase casting compression seal, to enhance the elongation and tensile strength, improve casting surface finish. To improve the flow of molten metal, increasing the casting filling ability and feeding ability. 
3: simplifies the pouring system design. Reducing the length of the horizontal runner improved casting handicraft production rate. 
4: reduce processing time and tool damage, improved casting surface quality. 
5: Work with a very high temperature strength and chemical stability, thermal shock resistance and resistance to metal flow shocks. No dregs at work or broken, for ensuring the wing melt metal filtration quality and chemical stability. 
6: with a large metal flow rate, and the flow rate stability (not used for straight-hole ceramic filter were captured with a flow rate of increase in the number of inclusions gradually decrease). The filtering effect will be far higher than the other filter elements filtering effect. Even in the molten metal inclusion content in many cases, the normal use will not cause filter plugging. 
7: high chemical stability, will not be affected by the impact of acid-base properties of liquid metal, does not change the chemical composition of liquid metal. 
8: a very high dimensional accuracy can be used for the filter is automatically placed into the production line. 
2, the company is now producing alumina, zirconia alumina ceramic foam material its physical properties are as follows 
The average pore size :1-3mm 
Bulk density :0.5-0 .6 (g/cm3)) 
Crushing Strength MPa :1.5-2 .5 
Creep rate%: "0.3% 
Specifications shapes for use in accordance with the provisions of a specific manufacturer

 

Product parameters

 

  1. Physical and chemical performance parameter of(理化指标)

item

Units

Material

Alumina

Corundum

Silicon carbide

I high-temperature zirconia

High Temperature Zirconia II

SiC

%

 

≥60

ZRO2≥66

ZRO2≥95

AL2O3

%

≥85

≥30

≤30

 

SiO2

%

≤1

≤10

≤4

 

channel destiny

PPi

 

54-60

4-60

4-60

4-60


porosity

%

 

80-90

80-90

80-90

80-90

Max service temperature

 

1100

1500

1600

1700

compression resistance strength

MPa

 

0.6

0.8

0.8-1.0

1.8-1.0

 

Times /11℃

 

0.8

0.9

1.0-1.2

0.8-1.0

Application

 

 

Non-ferrous Alumina

iron

steel

steel

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