#alumina magnesia carbon brick

[cxrefractories]

The Development of Refractory Ramming Mass

The ramming mass refers to ramming (manual or mechanical) method of construction, and hardened in the heating effect is higher than normal temperature under the unshaped refractory materials.

By refractory aggregate, with certain gradation of powder, binder, additive water or other liquid after mixing.According to the material classification with high alumina, clay, magnesite, dolomite, zirconium and silicon carbide carbon refractory ramming material.

Refractory Ramming Mass Function:

ramming material is made of silicon carbide, graphite, electric calcined anthracite as raw material, mixed with a variety of ultra-fine powder additives, fused cement or composite resin as the binder made of bulk cement.To fill the gap or stack cooling equipment and masonry masonry filler.

Refractory Ramming Mass Types:

The leveling layer with acidic, neutral and alkaline ramming material widely used in intermediate frequency coreless furnace core induction furnace, as if furnace ramming material used for melting aluminum and its alloys, melting of copper, brass, copper and bronze and copper alloy etc.

The carbon ramming mass as an example: according to the different type of blast furnace and the material design requirements of different carbon ramming material is mainly used for blast furnace carbon brick and bottom sealing gaps between plates and carbon bricks and the cooling wall, and filling the furnace bottom water cooling tube over the central line of the leveling and cooling wall, all parts are required by ramming carbon ramming after ramming mass has a certain strength and density, and filled every corner of a small gap, to achieve no leakage of hot metal and gas demand,Classification and construction: all ceramic ramming material consisting of material is divided into: clay, high alumina, carbon, magnesium and dolomite.

Refractory Ramming Mass Advantages:

High erosion resistance.

High bonding strength.

Short lead time.

Free engineering services to guarantee service life.

Ramming mass is used in various industrial places for manufacturing of many refractory materials. It is prepared with great precision using modern techniques and quality materials. Corrosion resistant with a high level of thermal stability, it offers maximum output and last longer. It can be used in lining of iron, lining the trough of blast furnaces, lining of induction furnaces, used as insulation for rapid drying. Also, available in a premixed form allows lesser wastage, consistent and longer lining and patching life.  Ramming mass is prepared using quality components and other raw material as per the industrial set standards and norms with great precision. The even and regular granule of the powder are appreciated by the clientele.

Neutral Ramming Mass VS Silica Linings

Silica ramming mass can safely be used up to an operating temperature of 1600 deg C. Since it expands very little, it is superior to both alumina and magnesia refractories to resist thermal shocks. Though silica lining has good endurance against thermal shock, it has poor resistance against steelmaking slags. Temperature control is very necessary for a satisfactory lining life.

The addition of right quantity of boric acid is very important for optimum life of lining.

The quantity depends upon (i) temperature of liquid metal bath, (ii) chemical composition of quartzite mass, and (iii) thickness of crucible wall.

Silica linings are the conventional lining solution widely used in both ferrous and non-ferrous foundries. Mainly made of crystalline silica and commonly known as acidic ramming mass, the typical binding agents that aid in the sintering of silica linings are boron-based. This refractory lining exhibits mainly low thermal expansion and have excellent thermal shock resistance.

Neutral ramming mass are a unique, chemically neutral foundry solution that form joint-less linings. The in-situ spinels synthesise at high temperatures inside the refractory lining, creating a unique 3-layer structure. The outermost layer in contact with the molten metal is a hard, sintered surface, followed by an intermediate fritted layer. The innermost layer stays in a powdery form.

Neutral ramming mass

Lining wear and the causes of wear

The lining life of induction furnace lined with silica ramming mass depends upon the lining practice and operating practice of the furnace besides quality of the silica ramming mass. It is quite common to get inconsistent lining life of the furnace. There are cases when sudden failure of lining takes place.

The main factors which affects the lining life of the induction furnace are

(i) incorrect granulometry of the ramming mass,

(ii) non-uniform distribution of the binding agent,

(iii) superheating of the metal bath in the furnace,

(iv) penetration of metal,

(v) minimum slag free metal resulting in minimum erosion at slag line,

(vi) loss of refractory powder, and (vii) topping/lining interface cracking

For the proper failure analysis in case of pre-mature failure of the refractory lining, it is important that proper records about output, working temperature, and other parameters are maintained. These records not only help in finding the cause of failure but also help in the continuous performance of the lining life.

Article Source: The Development of Refractory Ramming Mass Company name: Henan Changxing Refractory Materials Co.,Ltd More refractory products:https://www.cxrefractories.com/en-all-refractory-products Email:info@cxrefractories.com Website:https://www.cxrefractories.com

[zhenjin-refractory0211]

Which is better for magnesia alumina bricks

 Magnesia chrome brick is a high-quality refractory material composed of magnesium oxide (MgO) and chromium trioxide (Cr2O3). It has excellent performance in high temperature environment and is widely used in many fields. The following are the main uses of magnesia chrome bricks:

1、Metallurgical industry: Magnesia-chrome bricks are widely used in high-temperature equipment in the metallurgical industry, such as steel converters, electric furnaces, and smelting furnaces. They can be used in areas such as linings, furnace floors, furnace walls and furnace roofs to provide refractory protection and withstand erosion and wear under high temperature conditions.

2、Chlor-alkali industry: Equipment such as electrolyzers and evaporators in the production process of the chlor-alkali industry need materials that can withstand high temperatures and corrosion. Magnesia-chrome bricks are widely used in these equipment, providing excellent fire resistance and corrosion resistance, ensuring long-term stable operation of the equipment.

3、Oil refining and chemical industry: In the oil refining and chemical industry, magnesia-chrome bricks are often used in high-temperature equipment such as catalytic cracking units, hydrogenation units, reforming units and furnaces. They withstand high temperatures, corrosive gases and chemicals and provide reliable fire protection.

4、Glass industry: Glass furnaces are the core equipment in the glass industry, which are required to withstand extremely high temperatures and chemical erosion. Magnesia-chrome bricks are widely used in the inner lining, cooling zone and melting area of glass furnaces to maintain stable refractory performance and long service life.

5、Power industry: In the power industry, magnesia-chrome bricks are often used in high-temperature equipment such as boilers, burners, chimneys and hot blast stoves. They can withstand high temperature and flue gas erosion, and provide effective fire protection to ensure the normal operation and safety performance of equipment.

6、Other industries: In addition, magnesia-chrome bricks are also widely used in cement kilns, ceramic kilns, welding furnaces, carbonization furnaces, aluminum electrolytic cells and other fields. Its excellent fire resistance and corrosion resistance make it an important high temperature refractory material.

In conclusion, magnesia chrome bricks are widely used in several industries due to their high temperature resistance, erosion resistance and mechanical strength. Whether it is metallurgy, chlor-alkali, oil refining and chemical industry, glass or electric power and other fields, magnesia-chrome bricks can provide reliable fire-resistant protection to ensure long-term stable operation of equipment.

[yuyuangroup]

The Yuyuan Group is a professional magnesia carbon bricks supplier and manufacturer with a wide range of products to offer customers. Alumina Magnesia carbon bricks, High alumina bricks, Purging plug, metering nozzle, slide gate, Ceramic fibre gasket, and a variety of other products are available. We can provide the most competitive price and delivery time. Please contact us right away! https://www.ladleref.com/

[chinarefractorymaterial]

Application range of magnesia carbon bricks

Magnesia carbon bricks are made of magnesia, dead-burned magnesia, fused magnesia, high-purity magnesia, high-quality graphite and bauxite additives. The performance of alumina magnesia carbon bricks has a great relationship with the graphite content in the bricks. As the graphite content increases, the strength of the brick decreases, the thermal expansion rate decreases, and the residual…

[hy-abrasives]

White Fused Alumina for Refractory

https://www.hy-abrasives.com/products/white-fused-alumina-for-refractory/

As a kind of refractory materials, white fused alumina is generally used for aggregate and fine powder, because it has the characteristics of high refractoriness, wear resistance, corrosion resistance, etc., and it also has the characteristics of high load temperature and high temperature volume stability when making products. The products of white fused alumina refractories include iron making castables, corundum bricks, magnesia-alumina-carbon bricks, etc.

 Description of White Fused Alumina for Refractory

Items

Unit

Index

Typical

Chemical Composition

Al2O3

%

99.00min

99.32

SiO2

%

0.20max

0.09

Fe2O3

%

0.10max

0.03

Na2O

%

0.40max

0.23

Refractoriness

℃

1850min

Bulk Density

g/cm3

3.50min

Mohs Hardness

---

9.00min

Principal Crystalline Phase

---

α-Al2O3

Refractory Grade

Grain

mm

0-50, 0-1, 1-3, 3-5, 5-8

Fines

mesh

-200, -325

Grit (F Grade and P Grade)

FEPA

8, 14, 16, 20, 22,24, 30, 36, 40, 46, 60, 70, 80, 90, 100, 120, 150, 180, 220, 240

 Typical Physical Properties of White Fused Alumina for Refractory

01

High Purity

02

High Thermal Stability

03

Stable Chemicals

[xinmichangxingrefractory-blog]

Development of ladle lining refractory materials

20th Century 50--70 years, China's steel plants mainly used aluminosilicate refractory materials, including clay, high alumina brick and so on. Since the 1980s, China has successively developed the aluminum-magnesium carbon, coal quality calcium and magnesium and other several series of new steel package refractories. Wherein the aluminum-magnesium carbon refractory materials are of varieties, all specifications, is China's major ladle refractories.

In earliest 20th Century 50--60 years, a variety of clay bricks were mainly used in our country. Due to low cost, until the 1980s, some steel plants were using clay bricks as ladle lining material. Although clay bricks is no longer used as ladle material so far, it had made a great countribution for recovery and future development of China's steel industry in the early days.

With the continuous development of steelmaking technology, steel quatity and quantity, clay bricks was no longer used because of short service life. Some of our mills started using a variety of high alumina bricks as ladle lining material, in which way the ladle life got a greatly improvement.

With the continuous improvement of steelmaking technology, high aluminum ramming mass, wax brick, alumina magnesia, aluminum-magnesium casting material, aluminum-magnesium unfired brick, aluminum-magnesium spinel castable, aluminum MgO-C, magnesium aluminate spinel brick, aluminum-magnesium unfired brick and a series of high-grade refractory materials appeared to adapt to higher demand.

Changxing refractory provides refractory products, calcium silicate products, castable & mortar, china refractory brick, ceramic fiber felt, ladle & tundish nozzle, ceramic fiber with high quality for you. Such as high alumina refractory bricks, magnesia carbon brick, clay refractory bricks and other refractory products.

Article Source:Development of ladle lining refractory materials Company name:?Henan Xinmi Changxing Refractory Materials Co.,Ltd Email: sales1@chinafirebrick.com Website:http://www.chinafirebrick.com/

[rewellrefractoryuniverse-blog]

How much is one refractory brick ?

　There are always a lot of users ask about the price of refractory bricks, some users will ask how much is refractory brick per ton?How much is one refractory brick? This question is too vague, because the factor that affects the price of refractory brick is too much, such as material , index, shape and size of refractory brick.Some refractory brick cost 3-5 yuan per piece, some refractory brick cost more than 10 yuan per piece, some refractory brick cost several hundred yuan a piece, and also have precast refractory brick, the price is also different.

　　Among the common types of refractory bricks, we have introduced a lot of refractory bricks.Such as clay refractory brick, high alumina refractory brick, mullite refractory brick, corundum refractory brick, magnesia brick, carbon brick and so on.

　　1. Different materials of refractory bricks, the raw materials used in the production and the formula are also different, so in the procurement of refractory bricks, it is necessary to understand what materials used for the refractory brick, is it high aluminum or clay, for refractory with different materials, the prices are also different. For example, the price of clay refractory brick and high alumina refractory brick are different.

　　2. There are also differences in refractory bricks used in different environments.For example, there are dozens of kinds of refractory bricks for blast furnace, with carbon brick in the bottom of blast furnace and ceramic cup of blast furnace can be used as compound brown corundum brick, corundum mullite brick, and microporous corundum brick can be used.There are so many kinds of refractory bricks that can be used in only the bottom of the blast furnace, and there are many kinds of refractory bricks used in the furnace body, the furnace wall and the throat of the furnace. Therefore, it is necessary to understand the kiln environment that the refractory bricks are used for.

　　3. the same material refractory bricks used in different kilns are different, such as high aluminum brick for blast furnace and hot air stove, although the same is high aluminum brick, but different kiln environment, the requirements for refractory bricks are also different.

　　4. Due to the refractory brick as a kiln lining is needed, the building up of complex industrial kiln, so for environment when purchasing refractory brick type, some still need to design production mold and processing production of refractory brick.

　　5. The number of refractory brick, such as purchasing 1 ton and purchase 100 tons of refractory brick, refractory brick also have certain difference, the price of the average output, the greater the refractory brick manufacturer in refractory raw materials procurement, the price is more favorable, the production of refractory brick, the price also is more favorable.

　　Therefore, when you want to know how much is the refractory brick, it is necessary for the refractory brick manufacturers to provide detailed specifications, the environment and the number of refractory bricks. Only in this way can we understand the real price of the bricks. If you want to know how much a refractory brick is, it can be calculated by the density of bricks and the quantity of bricks.

　　The above is the basic introduction of how much is one piece of refractory brick. To know more about the price information of refractory brick, please contact REWELL, and we will provide you with the most suitable refractory brick quotation according to the information you provide.

[rajceramics9]

Boosting Industrial Efficiency: The Role of High Alumina Bricks in Durability and Performance

High alumina bricks are a crucial component in modern industrial applications, known for their exceptional durability and performance. These bricks, composed primarily of alumina (Al2O3), offer superior resistance to high temperatures, mechanical wear, and chemical corrosion, making them ideal for use in furnaces, kilns, incinerators, and reactors. By withstanding extreme conditions and maintaining structural integrity, high alumina bricks enhance the efficiency and longevity of industrial processes. Their ability to improve thermal stability and energy efficiency translates to reduced maintenance costs and downtime, ultimately boosting overall productivity. For More info call +91 7808775566

[cxrefractories]

Alumina magnesia carbon brick is composed of high grade bauxite, corundum, spinel, high purity magnesite and graphite. Alumina magnesia carbon bricks have the advantages of corrosion resistance, spalling resistance, balanced erosion, safe use, less staining of steel and slag, and easy unpacking.

[eddyandale]

The hydraulic ram features

The hydraulic ram features a cylinder mounted to the decrease plunger meeting and a ram housed in the cylinder and tailored to selectively drive the higher plunger assembly downwardly. As a number one authority in electrical contact applied sciences, together with contact tips, our multidisciplinary team ensures that our electrical contact assemblies deliver the very best value and trade-main performance and reliability. ZRCI Supplies might be machined to tight tolerance with customary instruments. Insulating refractories include calcium silicate supplies, kaolin, and zirconia. The amount of CaZrO3 didn't increase with the rise of nano-ZrO2 concentration, because the CaO was an impurity (1 wt. %) of the uncooked material, and at greater focus of ZrO2, the CaO particles had been consumed to form CaZrO3. Our new web site permits artists to buy a variety of products together with scorching glass casting mould mixes, ceramic papers, ceramic boards and shapes, thermal blankets and coatings. 

Mentioned means for sensing further press machines for sale including a second rack and pinion position encoder together with a pinion, a rack, and means for producing an electrical signal in response to relative movement of mentioned second rack and pinion, certainly one of stated rack and pinion of mentioned second rack and pinion being linked to stated higher plunger assembly and the opposite of stated rack and pinion of mentioned second rack and pinion place encoder being linked to stated hydraulic cylinder. You can also submit shopping for request for the abs sensor and specify your requirement on , and we'll help you find the quality hydraulic press for refractory bricks suppliers. Determine 5 (viii) reveals the SEM image of the polished floor of a pattern MgO-5 wt. % ZrO2 nanoparticles. An higher plunger meeting is positioned above the mould box and features a plunger tailored to increase downwardly into the mould cavity, and means are additionally supplied for inflicting selective vertical movement of the upper plunger assembly with respect to the mould box and the lower plunger meeting, this implies together with a ram and a cylinder. After changing a correct mildew, this electrical srew press can even producing steel wares. The main raw materials belong to the RO group, of which magnesia (MgO) is a typical instance. 7. A method in line with declare 1 the place, after urgent, the combination is conserved below stress for 0.5-1.zero hour for hardening and formation of a protecting layer between the body and the electrode material. The corrosion of the samples was evaluated using granulated blast furnace slag in specimens pressed uniaxially and isostatically and sintered at 1550 °C ( Figure 6 ) and in specimens pressed uniaxially and isostatically and sintered at 1650 °C ( Determine 7 ). The specimens comprise MgO with totally different additions of ZrO2 nanopowders (0, 1, three, and 5 wt. % of nano-ZrO2).

Over the recent years, Graphite market has been witnessing appreciable progress on the again of rapid demand of graphite for varied applications together with lithium ion and hybrid and electric autos and in addition increasing demand for high-purity graphite in fuel-cell and battery functions. The charger fifty four is then moved from its retracted position to a mold charging position by actuation of the charger cylinder 56. When the charger fifty four is properly positioned over the mould cavity 20, the ejection cylinders 28 are actuated to cause downward movement of the lower plungers 26 and filling of the mould cavities with the required amount of refractory material. All kinds of refractory electric screw press choices can be found to you, There are 7 suppliers who sells refractory electrical screw press on , primarily located in Asia. Alibaba offers 18,478 coal press machine merchandise. It is ready to produce concrete bricks, high alumina bricks, excessive alumina corundum bricks, magnesia bricks, SiC bricks, acid resistance bricks, acid proof bricks, particular shapped bricks, carbon bricks, carbon graphite bricks, magnesite carbon bricks, alumina carbon bricks, silicon carbide bricks, diatomite bricks, moler bricks, zircon corundum bricks, alkali resistant bricks, cyanite bricks, magnesite calcium carbon bricks, magnesia alumina bricks, magnesite chromite bricks, monolithic refractory bricks, refractory nozzle, zircon mollite bricks, chemically bonded magnesite chrome bricks, magnesite spinel bricks, mullite bricks, multi function refractories, superduty bricks, excessive responsibility bricks and and many others. Electrical storm recurred in 3 sufferers (37%) throughout the first 24hours after the cessation of sympathetic blockade. 1, where 1-materials of electrode, 2-disposable plastic frame, three-metallic puncheon-contact, 4-metallic nozzle, 5-metallic screw for pressure software, 6-metallic bush-contact, 7-insulating plastic washer, eight-metallic matrix, 9-ohmmeter. When the press calls for prime pressure and low volume, one pump can provide hydraulic fluid to one function of the press and the other pump could be coasting. Determine 3 a (5,6) show the XRD patterns of samples with 100% MgO and 1 wt. % ZrO2 nanoparticles respectively (IP), where MgO part and brucite part had been recognized. In operation of the above described equipment and assuming that it's desired to supply a brick having a thickness of 3.000 inches and wherein the density of the brick is to be inside predetermined limits, when the lower plunger 26 is within the raised place such that its upper floor is flush with the upper floor of the mould box and with the higher plunger assembly in its upper position, the charger fifty four is moved forwardly by the charger cylinder 56. It should be famous that in this place the two place encoders ninety and 100 will each register a zero reference place.

A novel technique for preparation of electrodes at a low temperature from electroconducting refractory powder supplies. If too little refractory materials is added, then the resultant brick will not have the required density. 13. A hydraulic press as set forth in declare 12 wherein mentioned means for sensing additional features a second rack and pinion position encoder together with a pinion, a rack, and means for producing an electrical signal in response to relative motion of stated rack and pinion, one in all said rack and pinion of stated second rack and pinion being connected to mentioned upper plunger meeting and the other of said rack and pinion of mentioned second rack and pinion place encoder being linked to stated lower plunger meeting. The oxides of aluminium ( alumina ), silicon ( silica ) and magnesium ( magnesia ) are crucial supplies used in the manufacturing of refractories. Subsequently, the primary ram 45 can power the higher crosshead forty two downwardly till the second place encoder signifies that the lower plunger 26 and the upper plunger forty four are spaced apart by a distance of three.000 inches, and a brick having a thickness of three.000 inches will likely be fashioned. In the pattern with 3 wt. % of ZrO2 nanoparticles, the slag penetrated within the refractory via the open porosity and the advance was stopped when it founded the CaZrO3 and ZrO2, see Figure 6 (7). 4 is an enlarged elevation view of a vertical place sensing device embodied in the hydraulic press shown in FIG. Our merchandise covers HLDS series electric screw press, fully automatic refractory brick manufacturing line, computerized materials weighing&feeding system, brick selecting&stacking robotic, intensive mixer and grinder, and many others. 4. A hydraulic press as set forth in claim 3 whereby stated means for sensing the pressure in stated cylinder features a pressure transducer including means for producing an electrical signal proportional to the stress in mentioned cylinder. One machine want 1 to 2 operators, it's with auto material feeding,saving labors 2. Electricity saving, only 11~18.5 Kw consumption 3. This machine with auto materials feeding, auto urgent and lifting which can guarantee employees life security. While various means could possibly be offered for sensing the relative positions of the lower plunger assembly with respect to the mould table, in the illustrated association, the position sensing device comprises a traditional rack and pinion position encoder 90 (FIG.

[yuyuangroup]

We are the Refractory manufacturer and integral contractor of ladle and offer a range of products including includes Magnesia Carbon bricks, Alumina Magnesia carbon bricks, High alumina bricks, Purging plug, metering nozzle, slide gate, along with Monolithic, like Ramming mix, Gunning and Spraying mixes, castable, mortar and ceramic fiber gasket. Visit us at https://www.ladleref.com/

[chinarefractorymaterial]

Converter magnesia carbon brick

magnesia carbon brick for converter Magnesite and graphite as the main raw material for the converter lining made of magnesium carbon refractory products. Performance converter MgO-C bricks with high temperature, slag resistance, good thermal shock resistance, high temperature strength and so on. But its disadvantage is easy to oxidize in use, can be improved by adding antioxidants. Its physical and chemical properties see table. The main refractory raw material for the production process is fused magnesia or high purity sintered magnesite and high purity graphite. Generally, MgO is larger than or equal to 95%, and the c content in graphite is more than or equal to 94%. With phenolic resin or asphalt as a binder, according to the use of conditions to select the appropriate additives, by ingredients, kneading, molding, heat treatment made after the finished product. (See magnesia carbon brick) used in the smelting process, due to the use of various parts of the converter conditions and damage are different. In order to achieve a balanced corrosion, for different conditions of use of the converter parts, the choice of magnesia carbon refractory brick for sale grades and quality are also different. Furnace mouth, furnace cap parts of the temperature changes drastically, by the slag corrosion is more serious, should use good thermal shock resistance, slag resistance of refractory material  magnesia carbon brick. Trunnions on both sides in addition to the role of damage when blowing, the surface without covered with slag layer, easy to repair, easy to oxidize the brick. Should be masonry good slag resistance, good oxidation resistance of high quality magnesia carbon brick. Slag line parts and slag long-term contact, by slag corrosion serious, to be masonry and into the direct impact of scrap and molten iron and erosion. Should be used with a strong anti-slag, high temperature strength, good thermal shock resistance of magnesia carbon brick. Hearth, the bottom of the furnace compared with other parts of the erosion of light, the choice of ordinary magnesia carbon brick, when the top and bottom composite blowing technology, especially at the end of CO2, O2 and other gases, the damage is more serious. Should use good oxidation resistance, good thermal shock resistance, high temperature strength, high slag resistance of high-grade magnesia carbon brick. According to the different parts of the converter, the corresponding performance of magnesia carbon brick is to improve the technical indicators of the converter and effective method.

[xinmichangxingrefractory-blog]

Sliding gate damage theory and meaning of conjunction

Ladle slide gate plate mainly contains two types, alumina carbon and alumina zirconium carbon. With steel production increasing and steel quality improving, calcium treatment process is applied, therefore, calcium content in the melton steel increased. Using alumina carbon and alumina zirconium carbon slide gate plate when casting steel, SiO2 and Al2O3 in the slide gate plate would mixed with [Ca], [CaO] in the melton steel or slag and get into low-melting point materials and feldspar, which would cause damage of slide gate plate. This type low-melting point materials would be easy to crushed down by erosion, new low-melting point material would re-appear. This progress would cause the erosion heavier, in which way the slide gate plate would be damaged gradually. Conjunction of slide gate plate can reduce the number of turnover ladle, low down ladle serves and turnover pressure. In addition, slide gate plate conjunction can low down labor working, improve ladle lining temperature, thus low down casting temperature and bring a number of benefit for production and reducing cost. 

From Year 2008, our factory succeed to develop double conjunction and from Year 2010, triple conjunction is developed. With the triple slide got into the normal production, on-site production, reduce labor intensity, the effect of reducing the cost of generation is very obvious.

Changxing refractory provides refractory products, calcium silicate products, castable & mortar, china refractory brick, ceramic fiber felt, ladle & tundish nozzle, ceramic fiber with high quality for you. Such as high alumina refractory bricks, magnesia carbon brick, clay refractory bricks and other refractory products.

Article Source:Sliding gate damage theory and meaning of conjunction Company name:Henan Xinmi Changxing Refractory Materials Co.,Ltd Email: sales1@chinafirebrick.com Website:http://www.chinafirebrick.com/

[ruizhirefractory]

The performance and main use of magnesia carbon brick

Magnesia carbon brick made of high purity refractories Supplier  magnesia, high quality graphite and some additives. Its performance and brick graphite content has a great relationship. With the increase of the graphite content, the strength of the refractory brick decreases, the coefficient of thermal expansion decreases and the residual expansion rate increases.

So should control the graphite content of brick in about 20%. MgO-C bricks on the slag wetting, with excellent resistance to peeling, corrosion resistance, suitable for ladle slag line parts, especially the occasion of multi-furnace even pouring. In order to meet the needs of the production of clean steel, refined in the ladle, the application of magnesia carbon refractory bricks parts from the slag line to the side of the wall to expand.

Refractory material magnesia carbon refractory brick is mainly used for steel-making oxidation converter furnace lining, tapping port, high-power electric furnace wall hot spot parts, as well as furnace refining furnace lining, Sheng Gangzai slag line parts.

[ricehusk]

Non-Clay-Based Refractories

Non-clay refractories like the one described below are manufactured almost exclusively as bricks and pressed forms, although some materials of magnesite chrome and alumina are fused into molds. For such items the typical starting ingredients are carbonates or metal oxides such as magnesium, aluminum, and zirconium.

Basic refractories of these materials include magnesia, dolomite, chromium and combinations. Magnesia brick is made from the mineral type of magnesia (MgO), periclase. Periclase is produced either from magnesite (a magnesium carbonate, MgCO3), or from magnesium hydroxide (Mg[OH]2), which in turn comes from seawater or underground brine solutions. Magnesia bricks can be chemically bonded, pitch-bonded, burned, or burned, then impregnated with pitch.

Dolomite refractories derive their name from the dolomite ore from which they are made, a mixture of calcium and magnesium carbonates (CaCO3 · MgCO3). They must be impregnated with tar or pitch after burning, in order to avoid lime rehydration (CaO). Chrome brick is made of chromium ores, which are complex solid spinel type solutions (a series of oxide minerals like chromite and magnetite) and silicate gangue, or phases of impurity.

 All the basic refractories show exceptional resistance to iron oxides and the basic slags associated with steelmaking — especially when incorporating carbon additions either as flakes or as residual carbon from pitch-bonding or tar-impregnating. For this cause the linings of basic oxygen furnaces, electric furnaces, and open-hearth furnaces find broad jobs. They're also used to line the copper converters insides.

Global Recycling is one of the topmost rice husk ash manufacturers & suppliers of India. We offer rice hull ash, rice husk ash. We are one of the most reliable and well-known manufacturers of the high-grade thermal insulating and covering compounds too. Our products are made of high-quality raw materials. This is the reason why our products contain high insulating power, spread ability, and expandability. Products provided by us spreads quickly and easily to cover the whole surface of the steel. Rice husk has lots of utilities as a covering compound.