Why is crystalline flake graphite a raw material of magnesia carbon brick？

1.The melting point of high temperature resistant graphit is 3850℃±50℃, and boiling point 4250℃, after burnt by ultrahigh temperature arc, the mass loss is small, and the coefficient of linear expansion is small. The strength of graphit will get higher with the increase of temperature, it will be doubled at 2000℃; If you need any refractory products, such as fire brick for sale, refractory raw materials, refractory nozzle and other refractory products.

2.Electrical conductivity and thermal conductivity. The electrical conductivity of graphit is one time higher than normal nonmetallic ore. Its thermal conductivity is even higher than some metals like steel, iron, lead, etc.. Thermal conductivity goes lower as temperature increase. Graphit can become thermal insulator at superhigh temperature;

3.Lubricating property. The lubricating property of graphit depends on the size of flake, the biger the flake, the smaller the friction coefficient, the better the lubricating property;

4.Chemical stability. Graphit has excellent chemical stability under normal temperature, it is resistant to the erosion of acid, alklai and organic solvent;

5.Plasticity. Graphit has good plasticity, can be grinded very thin;

6.Thermal shock resistance. Graphit is able to endure the drastic changes of temperature, volume change is small and there will be no crack.There have many kinds of refractory products in our factory. Such as fire brick, Magnesia Carbon brick, refractory raw materials, refractory nozzle and other refractory products.

Article source: Why is crystalline flake graphite a raw material of magnesia carbon brick

The main raw material of domestic powder metallurgy is no longer single

In the refractory raw materials, the current domestic powder metallurgy main raw material has not a single reduction of iron powder, electrolytic copper powder, the domestic has been able to produce atomized iron powder, stainless steel powder, high-speed steel powder, coated powder and various elements of metal powder, Powder, etc., can basically meet the needs of domestic production of high-strength parts, but also the production of special-purpose raw material powder, greatly expanding the powder metallurgy product varieties, but in quality and variety and abroad there is still a big gap.
In the powder metallurgy equipment, through the introduction of enterprises, the purchase of foreign powder molding presses, sintering furnace, mold processing and testing equipment and digestion and absorption, transformation of equipment used to improve product quality and shorten the gap with foreign production level provides a guarantee.
In the powder metallurgy products, has been able to produce high strength, complex shape of the powder metallurgy parts, such as passenger matching timing pulley, motorcycle supporting the use of primary driven gear and other structural parts. However, some, high-grade powder metallurgy parts (such as Buick cars powder metallurgy parts) need to import.
Enterprises to reorganize, cultivate large enterprises, large groups, to achieve scale of operation. Increase technical innovation and scientific research and innovation investment, speed up the new technology, new product development. Improve the mold design and manufacturing level, the application of computer-aided design and manufacturing. Products to high strength, complex shape and special performance of powder metallurgy parts direction. There have many kinds of refractory products in our factory. Such as fire brick for sale, refractory raw material, refractory nozzle, refractory fire brick for sale and other refractory products.
Article souce: The refractory raw material of domestic powder metallurgy is no longer single

The properties and applications of silicon carbide

On the domestic 34 black silicon carbide production enterprises to investigate statistics, in March China's black silicon carbide business average operating rate of 49%, compared with February increased by 6.58%. Changxing refractory offers many kinds of refractory products for you. Such as fire brick for sale, refractory nozzle ,refractory raw materila and other refractory products. March, Gansu Province, environmental protection efforts to reduce the number of enterprises have been normal production, coupled with the output of Ningxia region has also been restored, so in March China's black silicon carbide production continued to rise. Ningxia area operating rate from 51.89% to 62.81%; Gansu region operating rate from 29.86% to 36.49%.

China's black silicon carbide inventories rose in March, slightly lower downstream purchases, but after entering in April, the downstream inventory is insufficient, coupled with the export market exports will increase, taking into account some of the green silicon carbide production enterprises have Converting black silicon carbide in the plan, it is expected in April China's black silicon carbide production will continue to rise.

Changxing always offer best products and top servic for you all the time. Such as magnesia carbon brick, fire brick, refravtory raw material and other refractory products. Welcome to view our factory anytime.
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Tips in the use of ladle steel flow initiator

Tips in the use of ladle steel flow initiator:
1. Due to the ladle steel flow initiator in the ladle nozzle for a long time high temperature state, requiring a high degree of refractory sintering.

2. Due to ladle steel flow initiator filled into the outlet directly after contact with molten steel, the initial sintering temperature should not be too high.

3. Ladle steel flow initiator in the use of the process to withstand the large static pressure of molten steel, in order to prevent the collapse of the material, requiring raw materials with very good mobility, ladle steel flow initiator particles between the friction should be as low as possible.

4. Under the action of high temperature, control the appropriate drainage of raw materials, the volume effect of raw materials to prevent the use of the process in the production of ladle steel flow initiator can not automatically fall or can not effectively support the upper material.
The article source: http://www.chinafirebrick.com/Company_News_121.html

The application of chromite ore fines

Chromite ore fines has good increasing friction effect in low and high temperature, plays a dual role too. Added to rubber can play a good role of increasing friction, and do not scratch the duality and noise. In the friction material commonly used in chromite fines Cr203, content of 25%-40%, the higher Cr203 content, increasing friction effect is bigger. Use should pay attention to controlling the amount and particle size. Proper dosage should not exceed 7%, particle fineness more than 200 projects. Excessive dosage and coarse grain size can improve the friction coefficient but also will cause friction increases obviously.
The basic direction of the development of refractory fire brick technology is based on independent innovation as the basic starting point, take the refractory material design and application of scientific, production, application of fine and green, consumption reduction and resource conservation of the integration of the road to promote research and development On a new level. The innovative direction of the refractory for the cement industry is chrome-free and energy-saving.
There have many kinds of refractory products in our factory. Such as fire brick ,magnesia carbon brick, refractory raw material, refractory nozzle and other refractory products. When you want to know more kinds of refractory products, welcome to view our factory anytime.
The article source: http://www.chinafirebrick.com/Company_News_120.html

The development trend of green refractory materials

The future expansion of cement kilns in refractory materials can benefit from the promotion of similar energy conservation policies in the cement kiln, developed by the magnesium aluminum spinel, mafic spinel and mafic aluminum spinel brick in large new dry cement Brick kiln sintering belt and transition zone used to meet or exceed the magnesium chrome brick life, can replace magnesium chrome brick, significantly reduced the chromium pollution.
In the increasingly scarce national resources today, the new green and energy saving has become the purpose of the development of refractories. At present, Europe, Japan, the United States and other countries and regions due to government regulations, has been basically no chromium refractories, the use of green refractory has become an inevitable trend.There have many kinds of refractory products. Such as fire brick for sale, refractory nozzle, refractory raw material and other refractory products.

Should focus from the big, small start, face the reality, have focused, vigorously promote the user side, the production side, the R & D side, the design side of the co-operation and coordination. As a business, should strengthen cooperation with scientific research institutions and user units, increase production and research cooperation efforts, in the green refractory technology to achieve new breakthroughs.

China's refractory industry, the overall level of development from the advanced green there is a certain distance. Green refractories have attracted the attention of refractories and related industries. Relevant government departments and trade associations have also developed corresponding policies and measures to encourage and promote the fire-resistant green work. China Refractories Association also believes that the second five during the development of refractory materials will show new features, its basis is to improve product quality and application level, the focus is to increase or strengthen the new content, that is, energy saving and low carbon.

The basic direction of the development of refractory fire brick technology is based on independent innovation as the basic starting point, take the refractory material design and application of scientific, production, application of fine and green, consumption reduction and resource conservation of the integration of the road to promote research and development On a new level. The innovative direction of the refractory for the cement industry is chrome-free and energy-saving.
For the understanding of green refractory materials and behavior, should be under the guidance of the concept of systematic, balanced. For the refractory industry, should be from the preparation of raw materials to the production, construction, application and post-processing in all aspects of scientific and systematic considerations, to avoid thinking and vision confined to a point or face and trade-off.

Strengthen the energy-saving emission reduction, the development of green, low-carbon refractory products, is the global green economic strategy on the refractory industry's fundamental requirements. To further promote the refractory industry, technological innovation, product structure adjustment and application of technology to enhance and vigorously develop longevity energy-saving, environmentally friendly new type of green refractory products, refractory materials industry has become a megatrends.
There have many kinds of refractory products in our factory.Such as fire brick ,magnesia carbon brick, refractory raw material, refractory nozzle and other refractory products.
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Welcome to know the factors that affect the use of slide gate plate

1.Breakage around the hole caused by thermal shock. Small crack could appear when high temperature molten steel and refractory material get in touch, so it is crutial to improve the termal shock resistance and take measures to prevent the cracks from expanding.There have many kinds of refractory products in our factory. Such as magnesia carbon brick, fire brick for sale, refractory nozzle, refractory raw material.

2.The erosion and impact from molten steel and slags. The erosion and impact resistance abilities of slide gate plate has a big influence on its service life. The erosion is mainly from the Mn, MnO, FeO, CaO in the molten steel and SiO2 from slide gate plate, erosion resistance ability can be improved if the SiO2 content in slide gate plate is reduced. By improving carbon content, the permeation and reaction from molten steel and oxide can be effectively prevented, by adding antioxygen, the oxidation of carbon can be effectively prevented;

3.The abrasion during sliding. Especially when there is already damage on the ladle slide gate plate, the abrasion from the concrete steel will be more serious. So the strength should be improved, meanwhile keep low apparent porosity and smooth surface to reduce the penetration from molten steel. The main effective ways of improving strength and lowering apparent porosity are high pressure forming and vacuum oil immersing.There have many kinds of refractory products in our factory. Such as magnesia carbon brick, fire brick for sale, refractory nozzle, refractory raw material. When you need any refractory products, welcome to view our factory anytime.
Article source: http://www.chinafirebrick.com/Company_News_119.html

The features of magnesite for producing magnesia carbon brick

Magnesite is the main raw material for magnesia carbon brick, normally there are two kinds, sintered magnesite and fused magnesite. But comparing this two kinds, fused magnesite has the advantages of lager periclase crystal, bigger bulk density, etc. It is the priority raw material for producing magnesia carbon brick. When producing normal magnesia based refractory material, the requirements on megnesite are high temperature resistance and erosion resistance, thus the purity of magnesite, C/S ratio and B2O3 content are important. With the development of metallurgy industry, the smelting condition is becoming harder, the requirement of megnesite used for producing magnesia carbon bricks used in smelting equipment(such as Converter, EAF, Ladle) is not only on the chemical composition, but also on structure like high density and large crystal.
There have many kinds of refractory products in our factory. Such as magnesia carbon brick, fire brick for sale, refractory nozzle, refractory raw material. When you need any refractory products, welcome to view our factory anytime.
Article source: http://www.chinafirebrick.com/Company_News_118.html

Classification of unshaped refractory material

Compared with shaped refractory material, and unshaped refractory material have many advantages. For example, easy manufacturing process, short manufacturing period, saving energy, good integrity when using, widely application, and convenient for installation.

Though all with same shape, unshaped refractory products have different type. Generally, it is divided into following types:

1. According to porosity, there are compact unshaped material and insulating unshaped material.Compact unshaped material is common product. While insulating unshaped material is light weight castable, which is made according to ISO1927-75 standard. After frying, whose porosity cannot less than 45%.

2. According to different binder, castable is divided into two big molds, which are Inorganic binder castable and organic binder castable. According to Hardening mode , there are air hardening castable, hydraulicity castable, hot hardness castable and others kinds castable.

3. According to Construction characteristics, there are refractory castable, gunning mix, plastic castable, ramming mass, coating material , refractory mortar, vibration material and others.

Even with same specification, different function with different manufacturing method, if you need this kind products, please confirm application in advance. Welcome to view our website to know more kinds of refractory products. Such as fire brick for sale, refractory nozzle, refractory raw material and Magnesia Carbon Brick. Welcome to view our factory to know more details about refractory products.
Article source: http://www.chinafirebrick.com/Company_News_117.html

The sintering of tundish with dry vibration mix lining

1.For tundish with dry vibration mix lining, tundish should be cleaned before sintering, tundish cover should be changed if it is damaged. Under normal working condition, the sintering time for tundish should be more than 2.5 hours but less than 3.5 hours. Please follow the below procedures:
Small fire: Not less than 50 minutes;
Medium fire: Not less than 50 minutes;
Strong fire: Not less than 50 minutes;
Make sure sintering temperature is above 900 Deg.C, tundish in red hot condition.

2.Under abnormal working condition(time is not enough), the sintering time for tundish should be more than 2 hours, 60 minutes with medium fire and 60 minutes for strong fire. There have many kinds of refractory products in our factory. Such as fire brick for sale, Magnesia Carbon Brick, refractory nozzle, refractory raw materials and other refractory products.
Artilce source: http://www.chinafirebrick.com/Company_News_116.html

How can i know the application of corundum castable?

Corundum castable is a kind of high-grade unshaped refractories based on fused corundum as the main raw material, adding binder and other materials.

According to different parts and temperature, there is different choice of corundum castable: Chrome corundum castable, zirconia corundum castable, brown corundum castable, composite corundum castables and so on.

Chrome corundum castable is mainly used for carbon black reaction furnace, coal slurry gasifier lining, which the temperature is generally above 1700 degrees. Zirconia corundum castable is mainly used for glass industry furnace, it has strong anti-glass erosion ability. Brown corundum castable has good wear resistance, generally used for power plant coal injection pipe, boiler lining, rolling furnace slide rails.
Composite corundum castable is based on different temperature and environment, adds specific material and get composite corundum castable, it is generally used for cement rotary kiln, nonferrous metal melting furnace, steel and other industries. There have many kinds of refractory products in our factory. Such as Magnesia Carbon Brick, fire brick for sale, refractory raw material and other refractory products.
Article source:http://www.chinafirebrick.com/Company_News_115.html

How can i know the application of corundum castable?

Corundum castable is a kind of high-grade unshaped refractories based on fused corundum as the main raw material, adding binder and other materials.

According to different parts and temperature, there is different choice of corundum castable: Chrome corundum castable, zirconia corundum castable, brown corundum castable, composite corundum castables and so on.

Chrome corundum castable is mainly used for carbon black reaction furnace, coal slurry gasifier lining, which the temperature is generally above 1700 degrees. Zirconia corundum castable is mainly used for glass industry furnace, it has strong anti-glass erosion ability. Brown corundum castable has good wear resistance, generally used for power plant coal injection pipe, boiler lining, rolling furnace slide rails.
Composite corundum castable is based on different temperature and environment, adds specific material and get composite corundum castable, it is generally used for cement rotary kiln, nonferrous metal melting furnace, steel and other industries. There have many kinds of refractory products in our factory. Such as Magnesia Carbon Brick, fire brick for sale, refractory raw material and other refractory products.
Article source:http://www.chinafirebrick.com/Company_News_115.html

The application of Al2O3-C submerged entry nozzle

Al2O3-C submerged entry nozzles, take corundum and graphite as the basic raw materials, add metal silicon, silicon carbide, molding in the isostatic press, and then sintering.

This nozzle, with uniform structure, low infiltration to molten steel, strong erosion resistance, so it could be used for casting of most types of steel. A12O3-C submerged entry nozzle must be preheated to use, otherwise, the nozzle has the risk of cracking. In the preheating process, there will be graphite burning (decarburization), the nozzle surface layer apparent porosity increases, reducing its anti-erosion.

Another disadvantage of the submerged entry nozzle is poor slag resistance, good thermal conductivity, and thus the slag line is serious erosion and the inner wall of the nozzle is easy to condensate steel. It is necessary to take effective measures to protect submerged entry nozzle: such as add refractory fiber protective cover outside of the submerged entry nozzle, smear anti-oxidation layer on the surface, slag line with composite ZrO2-c material to improve slag erosion resistance and blow argon gas into the porous refractory layer on the inner wall of the nozzle.
There have many kinds of refractory products in our factory, such as refractory fire brick, refractory nozzle, refractory raw material and other refractory products. Welcome to view our website to know more information about refractory products.
Article source: http://www.chinafirebrick.com/Company_News_114.html

The requirements of refractory materials in cement rotary kiln burning zone

1. When the cement rotary kiln rotating lap, the refractory in the kiln will be exposed to the gas in the kiln once. In addition to the time, the refractory materials are covered by the material, so the kiln refractories hot surface temperature will be subject to periodic thermal shock, which requires the refractory materials in the burning zone have good thermal shock stability.

2. Cement rotary kiln in normal operation, there must have stable burning zone lining brick. And the “kiln skin” can not be too thick or too thin. When the “kiln skin” is too thick, it will affect the normal calcination, affecting production; if the “kiln skin” is too thin, the meting loss of refractory materials is large. So the refractory materials need a good hang "kiln skin" ability.

3. Cement clinker will form silicate liquid phase at high temperature and silicate liquid phase easily penetrate into the refractory fire bricks, resulting in refractory chemical composition and mineral composition changes or even damage. Therefore, refractory materials need have strong resistance to erosion. There have many kinds of refractory products in our factory, such as fire brick for sale, refractory nozzle, refractory raw material, refractory nozzle. Welcome to view our factory to know more refractory products.
Article source: http://www.chinafirebrick.com/Company_News_113.html

Would u like to know effect of raw materials on properties of magnesia carbon bricks?

Magnesia, the main raw material of magnesia carbon brick, its quality has a very important influence on the performance of magnesia carbon brick. How to choose magnesia is the key to produce magnesia carbon brick. There is fused magnesia and sintered magnesia, they have different characteristics. Fused magnesia: large grain, less impurities and silicate phase, high direct combination of grain with less grain boundary. Sintered magnesia: fine grain, more impurity and silicate phase, poor direct combination.

For the raw materials of magnesia, in addition to the chemical composition, in the organizational structure, also requires high-density and large crystallization. Therefore, as the main raw material of magnesia carbon brick, magnesia quality indicators should consider the following content: 1. Magnesium oxide content (purity); 2. Types of impurities, particularly C/S and B2O3 content; 3. Magnesia density, stomatal aperture, stomatal morphology, etc. (sinterability).

The purity of magnesia has a great impact on the slag resistance of magnesia carbon brick. The higher the content of MgO, the less the impurity, the lower the division degree of silicate phase, the higher the direct binding degree of periclase, the increase the resistance to slag penetration and melting loss. The impurities of magnesia are mainly calcium oxide, silicon dioxide, iron oxide. If the impurities content is high, especially boron oxide compounds, will adversely affected the refractoriness and high temperature performance of magnesia. There have many kinds of refractory products in our factory. Such as fire brick for sale, refractory nozzle, refractory firebrick and other refractory products. Welcome to view our website to know more kinds of refractory products.
Article source: http://www.chinafirebrick.com/Company_News_111.html

Come to know the classification of refractory material

According to different chemical composition, refractory material can be divided into 3 types: alkaline, acid and neutral refractory material.

Alkaline refractory material: Generally refers to MgO or MgO and CaO as the main composition of refractory material. These refractory raw material have high refractoriness, with strong resistance to basic slag, and main are magnesia and dolomitic. Alkaline refractory materials are used in alkaline steel furnace, non-ferrous metal smelting furnace, cement industrial kiln, converter and electric arc furnace.

Acid refractory material: Usually refer to SiO2 content more than 93%. Its main feather is that it could resist the erosion of acidic slag at high temperature, but it is easy to react with alkaline slag, and it has poor thermal shock resistance. Main are siliceous, semi-siliceous, clay. Acid refractory material are mainly used in coke oven, glass kiln, acid steel furnace, etc.
Neutral refractory material: Refer to the refractory material which is not easy to react with acidic or basic slag, such as clay, high aluminum, carbon, chrome, mullite or corundum refractory material. Neutral refractory material are mainly used in blast furnace, aluminium cell, ferroalloy furnace, molten steel ladle, plating tank, autoclave and so on. There have many kinds of refractory products in our factory. Such as fire brick for sale, refractory nozzle, refractory castable, and so on. When you need any refractory products, welcome to view our website to know more.
Artilce source: http://www.chinafirebrick.com/Company_News_110.html

Come to know the introduction of magnesia-calcium bricks in chinafirebrick

The magnesia-calcium brick, also known as high calcium magnesite brick, is a kind of magnesial refractory material with periclase as principal crystalline phase and tricalcium silicate as secondary phase.It contains 80 % ~ 87% MgO, 6 % ~ 9% CaO, CaO/SiO2 ratio is between 2.2 ~ 3.0.Its significant structural feature is periclase directly contact with dicalcium silicate and tricalcium silicate,making eutectic solution-4 Cao Al2O3 Fe2O3 fill into crystal gap between dicalcium silicate and tricalcium silicate. Its porosity is low, the refractoriness under load is higher than 1700 ℃. It has good alkaline slag resistance ability, but with poor thermal shock resistance.There have many kinds of refractory products in our factory. Such as furnace drying tamp mass, fire brick, refractory nozzle, raw material. When you need any refractory products, welcome to view our website anytime.

Made by calcium magnesia sand as refractory raw material, it will be made by firing at 1550~1600 ℃ after crushing, burdening, mixing and molding. It will be used at eye place of side-blown converter, top place of open-hearth furnace and oxygen-blown converter etc.

Magnesia-calcium brick has seven properties: High temperature resistance, slag resistance, spalling resistance, wear resistance, purifying molten steel and hydration resistance performance.

With the increasing production of stainless steel and all kinds of clean steel products, the demand of various magnesia calcium brick are increasing accordingly. For better production and using correctly, detailed understanding and learning of working performance and influencing factors of magnesia calcium bricks are very necessary.There have many kinds of refractory products in our factory, such as fire brick for sale, refractory nozzle, raw materials. Welcome to view our website anytime.
Article source: http://www.chinafirebrick.com/Company_News_109.html

would u like to know the precautions of using castable?

Refractory castable are divided into shaped refractory refractories and unshaped refractories. Unshaped refractory usually refers to the castable, which is composed of a variety of aggregate or aggregate and one or more kinds of adhesive and agent. Unshaped castable must be mixed with one or more kinds of liquids, it has strong liquidity and plasticity.

Refractory castable is a refractory material made of granular and powdered, and adding a certain amount of binder and water together. Pouring method is suitable for refractory castable because of its strong liquidity, and no need to heat hardening. Refractory castable is composed of refractory aggregate, powder, binder, additive, water or other liquid materials. Refractory castable is generally use of pouring method, vibrating method or discovering method, and can also be made into a preform.

Refractory castable is classified according to the porosity, bond and aggregate. Actually refractory castable is often classified by using temperature or functional features. According to the porosity refractory castable was divided into dense refractory castables and porosity of not less than 45% of heat insulation refractory material. According to binding agent refractory castable was divided into hydrsulic bond, chemical combination and coagulating binding.

Refractory castable is mainly used for various heating furnace liner and other overall structure. There have many kinds of refractory products in our factory. Such as refractroy nozzle ,refractoy raw materials, ceramic fiber felt. Some of refractory castable also can used for smelting furnace. For example, aluminate cement refractory castable widely used in all kinds of heating furnace, non-slag and no acid-base erosion of thermal equipment. In the molten steel, iron, slag erosion and high working temperature positions, such as steel tank, molten steel ladle, blast furnace stack, iron runner, etc. It can be used by the low calcium and high pure alumina cement containing with granular and powdered materials of refractory castables. What's more, phosphate bondedcastable refractories are not only widely used for heating furnace and soaking pit furnace but also can used for coke oven and cement kiln. Phosphate bondedcastable refractory also has excellent effect in direct contact with molten slag and molten metal furnace and some parts of the other container.
Article source: http://www.chinafirebrick.com/Company_News_106.html

Come to know refractory castable defination

Refractory castable are divided into shaped refractory refractories and unshaped refractories. Unshaped refractory usually refers to the castable, which is composed of a variety of aggregate or aggregate and one or more kinds of adhesive and agent. Unshaped castable must be mixed with one or more kinds of liquids, it has strong liquidity and plasticity.

Refractory castable is a refractory material made of granular and powdered, and adding a certain amount of binder and water together. Pouring method is suitable for refractory castable because of its strong liquidity, and no need to heat hardening. Refractory castable is composed of refractory aggregate, powder, binder, additive, water or other liquid materials. Refractory castable is generally use of pouring method, vibrating method or discovering method, and can also be made into a preform.

Refractory castable is classified according to the porosity, bond and aggregate. Actually refractory castable is often classified by using temperature or functional features. According to the porosity refractory castable was divided into dense refractory castables and porosity of not less than 45% of heat insulation refractory material. According to binding agent refractory castable was divided into hydrsulic bond, chemical combination and coagulating binding.

Refractory castable is mainly used for various heating furnace liner and other overall structure. There have many kinds of refractory products in our factory. Such as refractroy nozzle ,refractoy raw materials, ceramic fiber felt. Some of refractory castable also can used for smelting furnace. For example, aluminate cement refractory castable widely used in all kinds of heating furnace, non-slag and no acid-base erosion of thermal equipment. In the molten steel, iron, slag erosion and high working temperature positions, such as steel tank, molten steel ladle, blast furnace stack, iron runner, etc. It can be used by the low calcium and high pure alumina cement containing with granular and powdered materials of refractory castables. What's more, phosphate bondedcastable refractories are not only widely used for heating furnace and soaking pit furnace but also can used for coke oven and cement kiln. Phosphate bondedcastable refractory also has excellent effect in direct contact with molten slag and molten metal furnace and some parts of the other container.
Article source: http://www.chinafirebrick.com/Company_News_106.html

Come to know how to improve the service life of refractory bricks

Refractory bricks are refractory materials with certain shapes and sizes. In the premise of guaranteeing the service life, in addition to the design of reasonable size firebrick, but also have the correct shape and accurate size. This is to ensure product compliance, reduce scrap rate, improve the efficiency of the key manufacturers. The correctness of the shape shall include the verticality of the intersecting sides and the distortion of the brick surface for the straight fire bricks, and for the wedge-shaped refractory bricks, the distortion of the brick surface, the symmetry and the difference in the size of the head. The dimensional accuracy, ie the dimensional tolerances.

Size of brick tolerances and distortion based on two main: First, meet the requirements of the thickness of brickwork brickwork; Second, the possibility of refractory production. Refractory fire brick seam thickness, is the specification of industrial furnace refractory brick thickness. The meaning of the possibility of the production of refractory bricks includes not only the possibility of producing such bricks, but also to ensure a very high yield. In general, the size of permissible deviation and distortion of refractory bricks should meet the requirements of the thickness of brickwork joints. When the size of brick tolerance and distortion can not directly meet the brickwork brick thickness requirements, can be selected by brick or brick to reduce bias and distortion.There have many kinds of refractory products in our factory. Such as fire brick for sale, Ceramic fiber felt, refractory nozzle, refractory raw material, etc. Welcome to view our website to know more.
Article source: http://www.chinafirebrick.com/Company_News_105.html