Professional processing and production of three-level high aluminum retail refractory bricks

fire resistance temperature	1580 ~ 1770 ℃ (℃)
Origin	Xinmi City, Zhengzhou, Henan
Product category	refractory bricks
Material	aluminum silicate
thermal conductivity (normal temperature)	0 056
Grade	clay grade III

Characteristics of high alumina refractory bricks:
Aluminum silicate refractory products with aluminum oxide (Al2O3) content higher than 48%

According to the Al2O3 content in high alumina bricks, it is usually divided into three grades:
Class I - Al2O3 content> 75%; Class II - Al2O3 content is 60 ~ 75%; Class III - the content of Al2O3 is 48 ~ 60%

Features: 1 Good thermal stability;
2
High fire resistance and load softening temperature;
3
It is divided into standard shaped, ordinary shaped, shaped and special shaped bricks

Purpose of high alumina brick:
It is mainly used for building ceramic frit kilns, bubble alkali kilns, glass kilns, blast furnaces, hot blast furnaces, electric furnace roofs, blast furnaces, reverberatory furnaces, and rotary kilns
Lining
In addition, high alumina bricks are also widely used as open hearth regenerative lattice bricks, plugs for gating systems, nozzle bricks, etc

project indicators		LZ-75	LZ-65	LZ-55
alumina content	%	75	65	55
apparent porosity	%	23	23	22
normal temperature compressive strength	Mpa	50	45	40
0 2mpa load softening start temperature	℃	1520	1500	1450
permanent line change of heating%	1500℃ 2h	0 1-0 4
	1450℃ 2h	0

price description generally: crossed price: the crossed price may be the sales guide price of the commodity or the previously displayed sales price of the commodity, etc
, which is not the original price and is for reference only

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The specific transaction price may change due to the user's use of coupons, etc
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Unmarked price: the unmarked price may be the activity price of the commodity to participate in the event, which is for reference only
The transaction price at the specific event may change due to the user's use of coupons, etc
, and the final price shall be subject to the price on the settlement page of the order* Note: the above description is only valid when there is price comparison
If the merchant explains the crossed price separately, the statement of the merchant shall prevail