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Industrial-Grade CrO Content 0.1%-0.3% Refractory Brick for Temperature Operations

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Industrial-Grade CrO Content 0.1%-0.3% Refractory Brick for Temperature Operations

Country/Region	china
City & Province	zhengzhou henan
Categories	Ventilation Fans

Product Details

Product Description

Fused Casting Zirconia Electrocast S3 ER1681 Refractory Blocks AZS Block Zircon Corundum Brick

Fused Casting Zirconia Electrocast S3 ER1681 Refractory Blocks AZS Block Zircon Corundum Brickwith 33% of ZrO2 are produced by batching well-chosen zircon sand and industrial alumina powder with a certain ratio, adding with a small amount of sodium carbonate as Na2O source and boric acid or borax as B2O flux source, mixing well,melting and casting under 1800ºC~1900ºC. Based on above process, High Erosion Resistance Fused AZS Refractory Blocks with 36%~41% of ZrO2 are supposed to be produced by adjusting formula and adding some desilication zirconia as raw material. Their petrographic structure is composed of eutectoid and glass phase of corundum and baddeleyite. From the perspective of phase, High Erosion Resistance Fused AZS Refractory Blocks is the eutectoid of corundum phase and baddeleyite phase, and vitreous phase is filled among their crystals.

Features of AZS Brick
* High refractoriness
* Great resistance to high temperature and melt glass corrosion
* High bulk density and High intensity
* Great performance on saving energy

Specification

Item					Unit	Index
							Unit	AZS-33			AZS-36			AZS-41
								Y	H	Y	H	Y	H
Al2O3				%	remainder
ZrO2			≥			32			35			40
SiO2			≤			1.6	1.7	13.5	14.5	13	14
Na2O			≥			1.5			1.4			1.3
Fe2O3+TiO2+CaO+Mgo+Na2O+K2O+B2O3						2.5	3.0	2.5	3.0	2.5	3.0
Glass phase seepage temperature seepage temperature			≥	℃	1400	1080	1400	1100	1400	1150
Glass phase seepage temperature					1000℃	0.8
Glass phase seepage temperature						1500℃	0.8
Bulk Density/cm3	PT、QX	≥	kg/dm3	3.40	3.30	3.45	3.4	3.55	3.50
				MS			3.50	3.45	3.60	3.55	3.70	3.65
				WS			3.60	3.55	3.70	3.65	3.80	3.75
Ture Density,g/m3			3.8-3.9

Application

Application of AZS Brick
AZS Brick is mostly used in glass industrial furnace, glass electrical furnace, slideway kiln of iron and steel industry, sodium
metasilicate industrial furnace for resisting the chemical and mechanical erosion at high temperature.

Manufacturing Process of AZS brick
There are four steps for manufacturing process of AZS brick including melting of raw materials, casting, cooling and cutting.
* Prefer proportions of 1:1 zircon sand and industrial alumina powder and add few volume of NaZO, B20 agent of fusion after mix perfectly through smelting and pouring into mould at high temperature of 1900~2000℃ resulting the fused cast brick contained 33% ZrO2 content. On the base, adopt part of desilicication zircon sand as the raw material to make the fused cast brick with 36%~41% ZrO2 content.
* If the casting speed is too fast and the temperature is too high, the air in the mold will not be exhausted and the bottom of the mold will be broken, which will waste the casting time. So it is very important to control the casting temperature and
speed.
* The quality of AZS brick is subjected by the quality of raw materials and manufacturing technology. Rongsheng Refractory as a professional fused cast AZS block manufacturer can provide customers with high quality AZS brick at low price based on our professional engineers, advanced technology and equipment.

Packing & Delivery

Packing &Shipping Details of Fused AZS Blocks

1.International standard seaworthy exporttable packing.
2.Wooden pallet.
3.Wooden/bamboo case(box).
4.Further packing information will be based on customer"s requirements.

Shipping Details of Fused AZS Block:

1.The sample will be send by International sxpress FEDEX/DHL/UPS/TNT.

2.The goods are transport by shipping.

Contact Us

Henan Hongtai Kiln Refractory Co.,Ltd.

Industrial-Grade CrO Content 0.1%-0.3% Refractory Brick for Temperature Operations

Product Details

Packing &Shipping Details of Fused AZS Blocks

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