$High Alumina Brick for Kiln Refractory Fire Bricks$

$High Alumina Brick for Kiln Refractory Fire Bricks System 1$

$High Alumina Brick for Kiln Refractory Fire Bricks System 2$

High Alumina Brick for Kiln Refractory Fire Bricks

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Products	High Alumina refractory firebricks for furnaces and Kilns
Applications	furnaces and Kilns
Features	1,Good performance of anti alkali erosion resulted from raw material and fuel
	2,Good thermal shock resistance
	3,High mechanical resistance
	4,Low porosity
	5,low thermal conductivity

Technical Data

Index Products		Spalling Resistant High Alumina Bricks
Al2O3	%	≥70
Fe2o3	%	/
Bulk Density	g/cm3	≥2.5
Apparent Porosity	%	≥23
Refractoriness under Load(0.2MPa)	℃	≥1470
Cold Crushing Strength	Mpa	≥70
Thermal Shock(1100℃,water cooling)	times	≥25

Apperance Control Item	Method	Sampling Size	Specification
1,Crack	Visual Check	100%	Crack Width<0.5mm< span=""> Crack length<20mm< span="">
2,Chip,Lost corner	Visual Check	100%	A+B+C<30mm< span="">
3,Lamination	Visual Check	100%	No Lamination
4,Spot	Visual Check	100%	A+B<10mm< span=""> Or <3spot/piece
5,Fin	Visual Check	100%	No Fin
Size &Dimension
1,Shape	ASTM C134	Follow ISO5022	Conform to drawing
2,Dimension	ASTM C134	Follow ISO5022	As size tolerance in drawing For General Brick << span="">100mm drawing±1.5mm >100mm drawing±1.5% For Sk38 Brick All side:drawing ±1mm For Rotary Kiln Brick L,a,b:drawing±1.0mm H:drawing±2.0mm
3,Squareness	ASTM C134	Follow ISO5022	<< span="">100mm drawing±1.0mm >100mm drawing±1.0%
4, Warpage	ASTM C134	Follow ISO5022	For General Brick << span="">0.4%from diagonal line For Basic Brick used in Rotary Kiln << span="">0.2%from diagonal line
5,Slope	ASTM C134	Follow ISO5022	Drawing ±1mm
6,Taper	ASTM C134	Follow ISO5022	<< span="">1.5mm

$High Alumina refractory fire bricks for kilns$

Q: Is there a big difference between two high alumina brick and one high alumina brick?: According to my experience, two kinds of high alumina bricks from the index, there is a big difference between the content of AL2O3, a high aluminum brick in 75%, two grade high alumina bricks in 65%, so the content is not the same, also decided that the use of temperature difference, the difference is very big.

Q: What is the standard classification of high alumina bricks and high alumina bricks?: High alumina brick is a kind of refractory material in refractory brick products. It is made of refractory clay or other refractory material. It belongs to the product of Si Al System

Q: What are the reasons for the decline in the performance of high alumina bricks when we use high alumina refractory bricks?: Quality requirements for aluminium bricks of different grade. 2, high aluminum powder and high alumina aggregate and other materials of reasonable proportion, to reach the production requirements.

Q: Difference between low creep high alumina brick and ordinary high alumina brick: The emphasis is on the physical and chemical indexes of low creep and high alumina bricks. The physical and chemical indexes of the high alumina bricks are different, too. They are DRL-1550And LZ-75 perform GB GB/T2988-2012

Q: How to reduce porosity of high alumina brick: In order to reduce the porosity of high alumina brick, the corresponding measures should be taken from the selection of raw materials, batching, mixing, molding and firing.The water absorption rate of the first grade high alumina bauxite clinker should be less than 5%, and the water absorption rate of two grade high alumina material should be less than 7%. Fine grinding of soft clay and bauxite clinker with less than 4% water content. Mixed fine milling ingredients with this, can reduce the porosity of bricks.

Q: What kinds of minerals are there in the five major categories of ore crystal chemistry?: Natural element minerals. Of minerals produced by an element (elementary substance). There are about 90 natural elements in the earth's crust, accounting for 0.1% of the total weight of the earth's crust. Can be divided into metal elements, mainly platinum and copper, silver, gold, etc., non-metallic elements, carbon, sulfur, etc., half metallic elements, arsenic, bismuth and so on.

Q: What is spalling resistant high alumina brick?: Using bauxite as main raw materials, the introduction of a small amount of ZrO2 (ZrO2 is due to phase transition, between monoclinic and tetragonal type can improve the thermal stability of the products), adding a certain amount of binder and additives, the particle size distribution control mud, forming and sintering of refractory products produced, called anti stripping high alumina brick.

Q: What are ordinary bricks, refractory bricks, hollow bricks?: Referred to as refractory brick. Refractory wood made from refractory clay or other refractory material

Q: Refractory brick, high alumina brick, magnesia chrome brick, magnesia brick, clay brick, which type of high temperature refractory brick?: High alumina brick clay brick up to 1700 degrees above 1500 degrees -1750 degrees of magnesia brick and magnesia chrome brick 1500-1650 degrees, I is the production of clay brick, brick my temperature at 1500-1700 degrees. Specific depends on what kiln, brick is only part of it

Q: What is the difference between fireclay bricks and high alumina refractory bricks?: High alumina brick is one of refractory materials. The main component of this kind of refractory brick is AL2O3.

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