High Alumina Bricks for Nonferrous Metals
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- Loading Port:
- Qingdao
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- Min Order Qty:
- 1 pallet
- Supply Capability:
- 5000 pallet/month
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Brief discription for Refractories bricks for Nonferrours Metals
CMAX Refractories bricks for Nonferrours Metals are classified according to alumina content ranging from 48% to 90%.
CMAX Refractories bricks for Nonferrours Metals are commonly used in blast furnace, hot blast furnace, the roof of electric furnace, teeming ladle, rotary kiln,regenerator, etc.
Brief features for Refractories bricks for Nonferrours Metals
◆Low thermal conductivity
◆Excellent acid and base slagging resistance
◆High refractoriness
◆Excellent thermal shock resistance
◆Excellent mechanical strength
◆Good spalling resistance and wear resistance.
◆Good corrosion resistance.
◆High-temperature creep rate is quite low.
◆Good volume stability at high temperature.
◆Low bulk density, low thermal conductivity, good thermal insulation performance.
Technical data for refractories bricks for Refractories bricks for Nonferrours Metals
ITEM | UAL48 | UAL55 | UAL65 | UAL75 | UAL80 | UAL85 | ALP80 |
Refractoriness, ℃ | 1750 | 1770 | 1790 | 1790 | 1810 | 1810 | 1810 |
Apparent Porosity,% | 22 | 22 | 23 | 23 | 20 | 20 | 18 |
C.C.S, Mpa | 39 | 44 | 49 | 53 | 55 | 60 | 100 |
Refractories Under Load (0.2Mpa)，℃ | 1420 | 1470 | 1500 | 1520 | 1500 | 1520 | 1550 |
Reheating Linear Change,% | 1450℃x2h 0.1～-0.4 | 1500℃x2h 0.1～-0.4 | 1500℃x2h 0.1～-0.4 | 1500℃x2h 0.1～-0.4 | 1550℃x2h -0.5～+0.5 | 1550℃x2h -0.5～+0.5 | 1550℃x2h -0.5～+0.5 |
Al2O3 Content , % | 48 | 55 | 65 | 75 | 80 | 85 | 82 |
FAQ
Q1:Are you a manufacture or trader?
A:Factory+trade(mainly factories,at the same time,we operates other related products).
Q2:Can we visit your factory?
A:Sure,welcome at any time,seeing is believing.
Q3:What's the MOQ of trial order?
A:No limit,We can offer the best suggestions and solutions according to your condition.
Q4:Which payment terms can you accept?
A:T/T,L/C are available for us.
Q5:After an order is confirmed,when to deliver?
A:15-25days after deposit.
Q6:Can you offers samples?
A:Of coures,samples are free but freight paid by the buyers.
- Q:What does refractory consist of?
- Refractory materials can be divided into main raw materials and auxiliary raw materials according to their function in the production process of refractory materials.The main raw material is the main body of refractory. Auxiliary raw materials can be divided into binders and additives. The role of bonding agent is to make the refractory body in the production and use process has enough strength. There are commonly used lignin, phenolic resin, asphalt, cement, water glass, phosphoric acid and phosphate, sulfate, some main raw material itself has the effect of binder, such as clay; additive is to improve the production of refractory materials and construction technology, or strengthen the refractory material of some properties, such as stabilizer, water reducing agent, inhibitor, plasticizer, foaming agent, dispersing agent, bulking agent, antioxidant.
- Q:Corundum, high alumina and fireclay refractory difference is what
- Corundum is unknown. The high alumina brick has higher aluminum content than the clay brick, and the temperature resistance is higher than 300 degrees. It is more durable and durable than the clay brick. The production process of high alumina brick is better than that of clay brick. For example, the weight of good clay brick is 3.7kg, and that of high alumina is 4.2kg. Good density. But the price of high aluminum is too high: ordinary clay brick (standard brick example) in 1.1--2.5 yuan / block, high aluminum to 4.5 yuan / block, or even more expensive. The extra high aluminum has reached 5000 tons. Say straight white point is: under the same conditions, clay brick for a period of one year, then the high aluminum for more than three years.
- 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:The difference between light high alumina brick and heavy aluminum brick
- Lightweight high alumina bricks, commonly called insulating refractory bricks, also known as insulating refractory bricks. First of all, literally, lightweight aluminum bricks and heavy aluminum bricks are very different in weight. Lightweight high alumina bricks, also called insulated high alumina bricks, are designed for insulation and heat preservation. In normal use, the utility model is not directly contacted with the furnace temperature, and is a refractory brick product which is close to the furnace wall and has the function of heat insulation and heat preservation.
- Q:Aluminum content 38, silicon content 55 What refractory bricks?
- High alumina brick:The mineral composition of the high alumina brick is determined by the bauxite used. The mineral composition of the clinker is usually mullite, corundum and glass. The theoretical composition of mullite is Al2O371.8%, SiO2 28.2%, and its melting decomposition temperature is 1840 DEG C. With acicular crystal, network cross structure, high temperature state showed better strength. Corundum in the form of alpha -Al2O3, melting point of 2050 degrees, hardness of Mohs 9, showing a granular and columnar crystal, has good chemical stability, acid, alkaline slag have a certain resistance. Based on the composition of mullite minerals, the phase composition of high alumina brick can be judged according to the content of Al2O3. When the bricks are below Al2O3 71.8%, the base of the composition is mullite and SiO2, such as grade LZ-48 bricks. Because it contains a large number of SiO2 formed in the liquid phase under high temperature is 20% ~ 30%; brick in Al2O3 more than 71.8%, the excess Al2O3 formed corundum crystal under high temperature, while generating 2 high temperature phase, eutectic temperature rise by the low content of Al2O3 brick 1595 C to 1840 C, such as grade LZ-75 brick. In fact, it is impossible to produce a complete phase equilibrium in the process of production, but the glass phase is very small, and there is no more than 10% in the partial gap of the Yu Jing phase
- Q:What is the density of a super high alumina brick and what is the price?
- Super high alumina brick, alumina content of 80% bricks, bulk density of 2.7g/cm3 or more, the factory price of about 1900 yuan
- Q:How can the refractory brick blast furnace be pulverized and pulverized enough not to be taken away by the wind?
- The gas will directly lead the dome combustion, in order to ensure good mixing, complete combustion of gas and air in a short time, the combustion capacity of short flame or flameless combustion burner, commonly used for semi jet short flame burner.
- Q:What are the requirements for Rubble backfill height?
- Backfill should be filled with large stones, big face, small face upward, the decoration is stable, and then use small stones leveling, the gap between the stones can be swept into the slag, gravel, so that the gap filled.
- 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:In 2016, a few of the traditional refractory materials will be able to survive
- The other is in large enterprises and individual has the unique advantage of the small enterprises, with independent technology system, production equipment advanced, there are certain funds set up to deal with risk, timely reform, such enterprises compared to a few years ago the productivity and sales or have declined, but overall is still in the stage of production increased steadily.
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High Alumina Bricks for Nonferrous Metals
- Ref Price:
-
- Loading Port:
- Qingdao
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 pallet
- Supply Capability:
- 5000 pallet/month
OKorder Service Pledge
OKorder Financial Service
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