Magnesite zirconia fire clay brick for foundry

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
30 m.t.
Supply Capability:
5000 m.t./month

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Product Description:

CNBM conforms strictly to the requirements of ISO 9000 quality control system during the production. MSDS is also available if you want. The thermal insulation fire clay brick meet with the requirements of ASTM & JIS standards. So pls stay cool with our quality.

Insulating Fire Brick Technical index

Product No.

IFB70

IFB60

IFB50

IFB40

Al2O3

68%-72%

58%-62%

48%-52%

38%-40%

Refractoriness (°C )

≥1790

≥1790

≥1790

≥1790

Bulk density (g/cm3)

2.50-2.60

2.35-2.45

2.20-2.30

2.10-2.20

Apparent porosity (%)

22

19-22

17-20

17-20

Cold Crushing strength (kg)

480-510

450-480

430-450

390-430

Application

Insulating Fire Brick are used for the lining of converter, alternating current arc furnace, direct Current arc furnace and the ladle slag line, etc.

Equipment 

1 unit of Ceramic Abrasive (SG Abrasive) pilot production line

2 units of Compact grain Abrasive pilot production lines

1 unit of high-end coated abrasives (abrasive cloth) production line

2 units of Boron Carbide production lines

3 large flexible crushing and sieving lines for grit production lines

2 units of 2000KVA furnaces for Boron Carbide fusion

6 units of 5000KVA-10000KVA dumping type electric arc furnaces for Brown Fused Alumina fusion

Company Advantage

(1)Long Insulating Fire Brick manufacture history: 25 years manufacturer 

(2)Advanced equipment

(3)Diversification of production standards: ISO ANSI FEPA JIS ASTM

(4)Flexible payment: T/T L/C D/P D/A

(5)Professional marketing team and after-sale service

(6)Free sample

 

FAQs

 

Q1

 

What’s the transport method?

 

A1

FCL delivery goods with wooden pallet or   wooden case by sea; If LCL delivery, must with wooden case; Sometimes need   open top, flat rack or bulk cargo.

 

Q2

 

What’s the required payment term?

 

A2

Generally 30% TT as the prepayment, 70% TT   before delivery. If need, 100% Irrevocable Letter of Credit or negotiation.

 

Q3

 

Which country are our products exported to?

 

A3

Apart from entire Chinese market, the US,   Russia, Japan, Korea, Australia and some Southeast Asian Nations.

 


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Q:Zirconium corundum 25 content and 40 content, how to distinguish in appearance?
Fused zirconia corundum brick is pure alumina and zirconia containing silica 65%, about 34% of the zircon sand in electric furnace melting after internalization into moulds cooling and the formation of the white solid, the petrographic structure by zirconium corundum and plagioclase eutectoid and glass phases, from the phase is eutectoid zirconium corundum and plagioclase phase, glass phase filling between their crystallization.
Q:What problems should we pay attention to in the use of fused zirconia corundum brick (fused zirconia corundum brick) in glass furnace?
Cast brick and clay brick masonry contact, eutectic phenomenon will occur at 1300 degrees Celsius, the selection of refractory materials, should avoid eutectic phenomenon serious two kinds of refractory materials such as brick masonry contact, in the following cast brick, the most vulnerable to erosion fused zirconium corundum brick.
Q:What is the hardness of corundum refractory bricks?
Such as zirconium corundum refractory brick, chrome corundum refractory titanium corundum refractory brick.
Q:How much is a refractory brick?
There are many kinds of refractory bricks, you have to look at what is material, the material is not the same, the price is not the same, clay brick is the cheapest, probably hundreds of dollars a ton, and corundum brick a ton of several money, silicon carbide, silicon nitride, and more expensive. And this thing is generally on t sell, the price is by a single block after conversion.
Q:High temperature refractory material
Acid refractory with silicon oxide (SiO2) as the main ingredient, commonly used are silica brick and clay brick is siliceous. Products containing more than 93% SiO2, the use of raw materials with silica, silica and other waste brick. Acid slag erosion ability is strong, but vulnerable to the erosion of basic slag, its softening temperature is very high that is close to the refractory, the volume does not shrink after repeated burning, or even a slight swelling, but the thermal shock stability. Silica is mainly used for thermal equipment of coke oven, glass furnace, furnace and other acidic silica brick, according to the physicochemical indexes and SiO2 content can be divided into several levels, mainly brick for glass furnaces and used for coke oven two kinds of brick clay brick. With refractory clay or bauxite clinker as main raw material, containing 30% to 46% of alumina, refractory degrees 1580 to 1770 DEG C, weak acid refractory material, heat shock resistance, resistance to acid slag, wide application Pan, clay brick with refractory clay as main raw material is called ordinary clay brick, made with bauxite clinker as main raw material, the porosity in the clay brick below 17% is called low porosity clay brick. Two kinds of clay brick and according to the physicochemical indexes which were divided into several grades, the price difference between ordinary clay brick and low porosity clay brick greatly.
Q:What refractory materials are adopted in each part of the blast furnace
The lower part of the shaft due to high temperature and dust by scouring and alkali metal vapor erosion, so the requirements for the slag resistance, alkali resistance and high temperature resistance, wear resistance of high quality clay brick, high alumina brick, carborundum brick or corundum brick. Belly temperature reaches 1400~1600, and slag, steam erosion, erosion and corrosion is strong, therefore, the silicon carbide reaction bonded silicon carbide brick.
Q:Expansion ratio of lightweight corundum refractory bricks
Now with the production of lightweight foam corundum brick, basically still meters with molding casting, moulding after together with die in the drying room drying in 60~70 C 4 days of release, then the appropriate drying, finally after 1300 and 1550 C firing, the total burning time: 50~60h. Light corundum brick after firing is usually not the size and shape of accurate, so that products after the kiln to mechanical or manual cutting, can be made into a density of 0.8 - 1.3g/cm3, 4MPa compressive strength and porosity, the thermal conductivity of 70%~80% 0.17W/ (M - K), light-weight corundum brick use temperature of 1500~1700 DEG C.
Q:How to improve the induction furnace campaign, from the promotion of refractory life start
According to the workpiece, choose the appropriate hardware castable, corundum brick or refractory bricks, etc.
Q:What is the standard classification of high alumina bricks and high alumina bricks?
Refractory brick is non-metallic materials can be classified according to a kind of inorganic material, high aluminum brick, clay brick, magnesia brick, corundum brick, mullite bricks, silicon carbide materials such as brick, high alumina brick is used as a relatively wide range of products in accordance with the refractory brick high alumina refractory materials by high aluminum brick is generally divided into Al2O3 content three: I - II - >75% Al2O3 content; the content of Al2O3 is 60 ~ 75%; III - Al2O3 content from 48 to 60%.
Q:How much is a thermal brick?
If you really want to buy thermal insulation brick, do not simply look at the price, but also to consider the quality of the product. (a piece of brick in the market basically in 6 yuan, if there is a floating price if it is because of the size of the insulation brick or distance, but floating slightly.)

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