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| Product Name: |
α-β corundum product
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| Specifications |
α-β corundum product |
| Price Term: |
FOB,CFR |
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Cast Alumina (Corundum) goods
Cast alumina (corundum) product is produced by melting and casting high purity alumina in electric furnace at 2000°C. &©|945;-&©|946; corundum goods is formed when a-alumina and b-alumina inter-combine during their crystallization stage. A very co***ct structure is then formed; it has excellent endurance to strong alkali. Under 1350°C, the corrosion resistance to glass melt is the same as AZS products. Because it does not contain impurities such as Fe2O3 and TiO2, when comes into contact with liquefied glass, air bubbles are rarely found. Therefore, this product has the special characteristic of minimizing contamination to glass liquor. So it is very suitable for sidewalls, pond bottoms, fore-hearth feeders of slap-up glass kiln.
Physical and Chemical properties
Chemical Composition(%)
RA-M
SiO2
0.80-1.2
Al2O3
&©|8805;94
Na2O
3.6-4.5
Fe2O3
Tiny
TiO2
Tiny
Physical Properties
?
True density(g/cm3)
3.54
Cold crushing strength (***)
200
Thermal expansion rate(%) 1000&©|8451;
0.7
Thermal expansion rate(%) 1500&©|8451;
1.09
Bubble formation index
0-2(1100&©|8451;)
Brack impurity index
0(1450&©|8451;)
Bulk density (g/cm3)
PT
&©|8805;3.10
WS
&©|8805;3.30
Crystalline hpase composition(%)
?
Glass phase
&©|8804;2
&©|945;-Corundum
40-50
&©|946;-Corundum
50-60
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| Company: |
Zhengzhou Zhenzhong Fused Zirconia Co.Ltd
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| Contact: |
Mr. miao oscar |
| Address: |
NO.77 Daxue Road,Zhengzhou City,Henan Province,China |
| Postcode: |
450052 |
| Tel: |
86-371-67947836 |
| Fax: |
86-371-87947836 |
| E-mail: |
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