High Alumina Insulating Fire Brick - Refractory

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Place of Origin:	(Mainland)	Shape:	Brick	Material:	Mullite
SiO2 Content (%):	57%	Al2O3 Content (%):	40%	MgO Content (%):	0.4%
CaO Content (%):	0.4%	Refractoriness (Degree):	Common (1580°< Refractoriness< 1770°)	CrO Content (%):	0.4%
SiC Content (%):	0.4%	Model Number:	high alumina insulating fire brick	Brand Name:	CCEFIRE
Density::	0.6g/cm3	thermal shock resistance times:	20	rpture strength:	1.0 Mpa
Classification temperature::	1260c	Common size:	230x114x65/75mm	The third party inspection:	SGS, BV
Quality standard:	ASTM, JIS	Fe2O3:	1%

Packaging Detail:	wooden pallet with thermal shrinkage
Delivery Detail:	within 15 Days

high alumina insulating fire brick
1.Cover JM23, JM26,JM28,JM30,JM32
2.Manufacturer of 43 years experience
3.JIS, ASTM

Description of product

Certified by ISO 9001:2008 Certificate, Mullite insulating brick is made by the most innovative technology in China. insulating brick, using high pure mullite as raw material, is made by adding alumina powder according to different type and then sintering in high temperature. JM insulating brick is the new energy saving material for insulation. More details about insulating brick: Product Namehigh alumina insulating fire brickStandard Size23011465mmApplicationethylene cracking furnace, synthetic ammonia conversion furnace, tubular heater, coal-gas generator and other of petrochemical industrial furnacesCharacteristicslow density,low conductivity,great resistance to thermal shock, low linear shrinkage, high contain of mullite crystal,accurate in demensionProduct RangeIncluding JM23,JM26,JM28,JM30,JM32payment termsT/T , L/C acceptablePackingpallet

Technical data

Type No.g/cm3≤DensityMPa≥Compressive StrengthMPa≥Rupture Strength%≤Linear Change on ReheatingThermal Shock Resistance, TimesHeat Conductive Cofficientw/m.kAl2O3≥%Fe2O3≤%DJM-230.601.31.01230×12-0.5≥20400°C 0.151000°C 0.2400.70DJM-260.801.81.41400×12-0.5>20600°C 0.25800°C0.27550.70DJM-280.902.21.71510×12-1.0>20600°C 0.341000°C0.347650.60DJM-301.02.502.101600×12-1.0>20600°C 0.431000°C0.45740.50DJM-321.23.502.501650×12-1.0>20600°C 0.501000°C0.53760.40

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Professional sales: We value every inquiry sent to us, ensure quick competitive offer. We are a sales team, with all techinical support from engineer team We are not only provide products, but also provide the solutions and technical support from our Tech Team. Our company and our customers feed upon each other and develop jointly together.

Q:The cloth blowing is not uniform on the lime kiln refractory brick is damaged it: People with the shaft kiln cement clinker kiln, because of small size, low calcination temperature, using only Al2O3 containing a single clay brick is 30 ~ 40%, the rotary kiln was improved in the early Yuan faith this experience, use of high alumina brick and clay brick, from 60s onwards, due to large scale kiln and to strengthen the operation of the high temperature parts of kiln lining, alkaline brick masonry is widely used, the main varieties are: magnesia chrome brick, magnesia spinel brick and dolomite brick.

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?: Halide. A few species, about 120 species, accounting for only 0.1% of the earth's crust. Most of them formed in the surface conditions, forming a salt mineral, containing less pigment ions, light color, low hardness, generally less than 3.5. Common mineral halite (NaCl), potassium (KCl), fluorite (CaF2) etc..

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

Q:What are the reasons for the decline in the performance of high alumina bricks when we use high alumina refractory bricks?: All the raw materials adding order, mixing time, material and material moisture trapped. 4, the pressure and the volume density of Pei brick and brick Pei size etc..

Q:High alumina brick 80 with which high aluminum cement?: Which kind should be chosen should be determined according to the conditions of use, life expectancy and cost control. By the way, the quality of masonry is also very influential.

Q:What are the categories of bricks?: Ordinary brick size of 240 mm * 115 mm * 53 mm, according to compressive strength (Newton / square millimeter, N / mm2) size is divided into MU30, MU25, MU20, MU15, MU10, MU7.5, these intensity levels.

Q:Introduction of high alumina brick: High alumina brick is one of refractory materials. The main component of this kind of refractory brick is AL2O3. If the content of Al2O3 is higher than 90%, it is called corundum brick. Because of the different resources, the standards of different countries are not identical. For example, European countries limit the content of Al2O3 to high alumina refractories by 42%. In China, the content of Al2O3 in high alumina brick is usually divided into three parts: I, etc. - Al2O3 content, >75%, II, etc. - Al2O3 content is 60 ~ 75%, and the content of Al2O3 is 48 ~ 60%.

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 materials are used for roof insulation?: There are two kinds: one is a kind of cotton insulation board, such as rock wool board, aluminum silicate cotton board, but this is not environmental protection, harmful to life, foam board (this fire safety factor minimum), these relatively cheap.

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