High Alumina Brick NT-26 Lightweight Insulating Firebrick for Industrial Oven

High Alumina Brick NT-26 Lightweight Insulating Firebrick for Industrial Oven

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 1000 pc

Supply Capability:: 1000000 pc/month

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Quick Details

Place of Origin:	Shandong, China (Mainland)	Shape:	Brick	Material:	Mullite
SiO2 Content (%):	50%~65%	Al2O3 Content (%):	54%	MgO Content (%):	0.8-1.2
CaO Content (%):	0.01	CrO Content (%):	0.1~0.3%	SiC Content (%):	1.2-1.4
Model Number:	NT-26	Brand Name:	CNBM	color:	white
Dimension:	23011465 mm	Density:	800kg/m3

Packaging & Delivery

Packaging Details:

carton+pallet/pallet

Introduction

NATI Insulating Firebrick own light weight, with mini-pore equally distributed, compared with common firebricks, so NATI IFB keep furnace wall low heat loss and save the cost of fuels, NATI IFB also means lower heat storage, heating and cooling more fast, easy for discontinuous operation. NATI IFB is suitable among the range 900℃~1650℃.

Characteristics

*Low thermal conductivity

*Low impurity content

*High strength

*Excellent resistance to thermal shock

*Resistance to erosion

*High accuracy of dimension

Typical Application

*Lining for hot-surface of industrial furnaces, such as carbon furnace, cracking heater, heating furnace for oil refining, annealing furnace, roller kiln, tunnel kilns etc

*Back-up lining of industrial furnaces, such as glass tank kiln

*Deoxidizing atmosphere furnace

Physical & Chemical Data

Description		NT-23	NT-26	NT-28	NT-30	NT-32
Classification temperature (℃)		1300	1400	1500	1550	1600
Density (kg/ m3)		650	800	900	1000	1100
Rupture Strength (Mpa)		0.8	1.2	1.4	1.6	1.8
Thermal conductivity rate W/m.k		0.15	0.26	0.33	0.38	0.42
Pressure strength (ASTM C93,Mpa)		1.1	1.8	2.5	2.8	3.0
Shrinkage after heavy firing at (℃×8h)(%) JIS R26		0.3 (1230)	0.4 (1300)	0.6 (1500)	0.6 (1550)	0.6 (1600)
Chemical composition(%)	AI2O3	40	54	62	74	80
Chemical composition(%)	Fe2O3	1.2	0.9	0.8	0.7	0.5
Matching refractory mortar		NT-1300 mortar	NT-1400 mortar	NT-1500 mortar	NT-1500 mortar	NT-1600 mortar

NT-26 Light Weight Insulating Firebrick for industrial oven

Q: How much is the bending temperature aluminum silicon carbide brick for torpedo car: The product has the advantages of high temperature, little creep, strong corrosion resistance and good thermal shock resistance, and is suitable for large and medium-sized hot blast stoves.

Q: What is fireproof concrete?: Silicate fireproof heat-resistant concrete using temperature can reach 700 DEG ~800 DEG, the main mechanism of its heat is dehydrated calcium hydroxide silicate hydrates series of cement clinker under high temperature, the calcium oxide and slag and mixing activated silica material in the three and two aluminum oxide and the reaction of anhydrous calcium silicate and anhydrous aluminum acid calcium has strong heat resistance, the fire resistance of concrete is a certain. Such as the use of high alumina bauxite and broken bricks, magnesia brick and magnesia for fireproof heat-resistant concrete materials with the highest using temperature can reach 1100 DEG C.

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 heat preservation material used in a laboratory furnace?: Asbestos, high alumina brick, or carbonized silicon are often used.Thermal insulation materials are generally used to guide heat coefficient less than or equal to 0.2 of the material. Thermal insulation material development is very fast, and in industry and building the use of good insulation technology and materials, often can get twice the result with half the effort. Each ton of mineral cotton insulation used in the building saves one ton of oil a year.

Q: What are the main components of high alumina bricks?: Sweat is like water mineral alumina bauxite, aluminum ore, magnesite, waves of gibbsite. Anhydrous alumina raw material, such as corundum, alumina, fused corundum. High alumina brick Zhengzhou gold company specializing in the production of various specifications, you can directly ask their technical staff.

Q: What is the difference between corundum and high alumina??: The main component of high purity 99 corundum brick is corundum sand,90 corundum brick is mainly composed of corundum sand and a small amount of Suzhou soil, mullite.

Q: What's the difference between a well type annealing furnace and a box type annealing furnace?: 1. The shell of the furnace is welded by section steel and steel plate. 2, the furnace cover support adopts steel and guide rail combination mobile type. 3. The heating element is made of high resistance alloy 0Cr25Al5 produced by Beijing Shougang Group and arranged on the furnace side. 4, because the bottom bearing adopts high aluminum bricks, the circle center of the furnace set small, inside and outside heating. 5 、 furnace cover adopts hydraulic lifting, motor control, automatic walking. 6 、 temperature control system adopts PID SCR control, high accuracy.

Q: What are the characteristics of high alumina bricks?: A neutral refractory with an alumina content of more than 48%. Made from alumina or other raw materials of high alumina content; formed and calcined.

Q: How to distinguish the good or bad of the high aluminum brick?: The general high alumina bricks used in the steel, steelmaking, hot blast furnace, electric furnace, blast furnace, reverberatory furnace, rotary kiln lining of industrial furnace in China, mainly composed of a bauxite; sillimanite minerals (including kyanite, andalusite, sillimanite etc.); synthetic material, such as alumina synthesis of mullite, corundum, etc.. High aluminum brick has good quality, high refractoriness, long life and other characteristics, is the main use of refractory brick kiln products, commonly used units can not distinguish the quality and grade of high aluminum brick right in the procurement time, caused by the high prices to buy low grade products, thereby reducing the furnace life therefore, Zhengzhou's Sindh yuan refractory material factory in here is simple to introduce how to identify the quality when purchasing brick high alumina brick.Color: in the purchase of high alumina brick, first of all to see the color, high quality aluminum brick surface smooth, yellow color white, four sides smooth, no broken angle, no cracksWeight: the weight of a block of bricks to be called, according to the standard weight level, high aluminum brick weight of 4.5 kg. Two grade high alumina brick weighs 4.2 kg, three high aluminum brick weighs 3.9 kg, the same level, the same parameters can reach this standard can be regarded as high-quality high aluminum bricks, the opposite is not up to the weight that the quality is good, if there is a crack, four angle uneven, off angle phenomenon, then substandard products, some of the above points to help to the purchaser

Q: Does the chimney have high acid resistance?: The chimney particles and gases, mostly coal tar products, material acidic, therefore, take good acid resistance, acid proof brick, Grouts also used potassium silicate clay acid is preferred.

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