$High Alumina Brick for Kiln Refractory Fire Bricks$

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

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

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: What are the main components of high alumina bricks?: High alumina brick materials according to the main mineral phase can be divided into: aluminum silicate minerals, such as sillimanite, kyanite, andalusite, and synthetic mullite.

Q: What are the grades of high alumina bricks?: According to the size of high aluminum brick is divided into: standard brick, special-shaped brick.

Q: How much is one ton of high alumina refractory brick?: High alumina refractory brick according to the different content of AL2O3 is divided into grade, grade one and grade two, and grade three high aluminum brick, Zhengzhou Kang Hui refractories factory price in 800-1900 yuan / ton, stable quality, are exported to the domestic and foreign markets.

Q: What refractory material does cupola lining use?: It's made of high quality refractory material: 1770 ~ 2000 centigrade.

Q: What is the price of the latest thermal insulation material?: There are many kinds of insulation materials, and the price will fluctuate with the market. Small quantities of inquiry or procurement, then go directly to the local thermal insulation market, a wide variety of prices are basically the market price.

Q: Which is better, the soft core or the hard core?: When the current through the wire, it will produce a magnetic field in the vertical plane space of the wire, if there is a current two wire close by in the same direction, because they produce a magnetic field in the direction is opposite, it will produce a repulsive force is due to the magnetic field force. They will mutually inhibit current intensity of the other party, caused by the reduction of current in the wire, this inhibition of each current intensity, we called wire inductance. When the AC current line frequency is high, the inductance is stronger.

Q: What are ordinary bricks, refractory bricks, hollow bricks?: Hollow brick is divided into cement hollow brick, clay hollow brick, shale hollow brick. In March 2011 Yunnan Yingjiang earthquake occurred in 5.8, the use of cement hollow brick houses collapsed and killed several people, due to safety concerns that Yunnan intends to disable the cement brick, Shandong Qingdao in the construction of real estate has also been halted the use of cement hollow brick. Professional claims in the construction industry argue that the prohibition of the use of such statements is unscientific and unprofessional. Misleading the public, it must be corrected. Hollow brick is only a kind of building material, and it is no problem to use it in scientific way. Hollow brick in use is very scientific, high quality requirements, the investigation of the foundation is suitable for the use of hollow bricks, how to design, construction, cement and other related ingredients, there are no problems. According to strict procedures, scientific use, strict implementation of relevant national standards, the use of qualified hollow bricks, there is no problem. Similarly, if the use of solid bricks does not strictly comply with the relevant standards of the state, the same will be a problem.

Q: How are the grades of high alumina bricks differentiated?: High alumina brick: aluminium silicate refractory product with a content of three Al2O3 (two) and more than 48%

Q: How to reduce the harm caused by two times mullite in high alumina refractory material: Two times mullite refers to the content of aluminum is about 70%, in high temperature sintering, the expansion coefficient is large, the thermal expansion rate is high.

Q: What is the high temperature limit of refractory bricks and refractory soil?: According to the preparation process can be divided into bricks, brick, electric melting brick (Rong Zhuzhuan), the refractory insulating bricks; according to the shape and size can be divided into standard brick, ordinary brick, specific rotation. It can be used as high temperature building materials and structural materials for construction kilns and various thermal equipments, and can undergo various physical, chemical and mechanical changes at high temperature.

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