Refractory Materials for AOD
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AOD Bricks are dense, strengthened matrix structure stabilised bricks, which possess superior oxidation resistance besides enhancing the abrasion resistance. The product is a paraffin impregnating, high temperature performance and excellence slag resistance.
Application Area : These are high quality calcined dolomite with high purity electro fused magnesia composite refractory bricks suitable for use in the working lining Bottom, lower & upper cone Area of AOD Converter.
Refractory Materials for BOF
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Manufacturing process: High-quality fused magnesia and flake graphite as the main raw material, organics as the binder, adding anti-oxidants, pressing through cold hydrostatic pressure, and heat treatment.
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Main application: Masonry for working lining for BOF
Manufacturing Process: With Magnesia and synthetic Dolomite as the main raw material, adding a variety of complex additives and mixing. Due to high-purity magnesia and complex additives, the adhesive rate is 95% higher, and with better corrosion resistance and thermal stability, it’s the optimum gunning material for impact and slag position.
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Main Application: BOS working lining repair (commonly slagline and trunnion)
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Application Method: Will fit any kind of gunning material equipment with 12-16% water addition. With an average of 20-30mm applied thickness, extensive lining protection could be 5-12 times.
Manufacturing Process: Based on high-purity fused magnesite and environmental protection organics as a binder, adding a certain number of agglutinants, pressing by hot mixing and high-pressure foaming.
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Main Application: Used for working side, patching Magnesia Carbon Bricks and Dolomite Carbon Bricks.
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Application Method: It can be thrown into the tank. The actual area of erosion and depth be determined the amount of fettling method. There is a difference for performance and sintering time according to the number of bricks, normally the sintering time is less than 30 minutes, and the service time is between 25-45 hours
Manufacturing process: Magnesite and synthetic dolomite as the main raw material, adding a sintering agent and pressed by heat mixing.
Application Method: For a large area patching, charge to the position that needs to be repaired between 300 to 2000kg (according to the furnace size, erosion degree, and area to increase or decrease the quantity) of patching, material by using chute and allow for 10-30 minutes (decided by the thickness of gunning materials) of sintering. For small areas, throw in the hot patching materials pre-packed into 5-10kg bags as per the requirements of different plants.
Manufacturing Process: High-quality caustic calcined magnesite as the main raw material, adding binders and briquetting after mixing & high-pressure briquetting.
Main Application: For slag splashing in order to improve the life of a furnace lining
Manufacturing process: High-quality caustic calcined magnesite and caustic calcined dolomite powder as raw material, adding water and binder and briquetting after mixing & high-pressure briquetting.
Main Application: Can be used as a steel-making slag agent, and also can be used for slag splashing
Manufacturing process: High-quality fused magnesia and purity flake graphite as the main raw material, organics as a binder, adding anti-oxidants, molding through cold hydrostatic pressure molding machine, and heat treatment.
Main application: Used for bottom blowing for large vessels.
Manufacturing process: High-quality fused magnesia and purity flake graphite as the main raw material, organics as a binder, adding anti-oxidants, after heat mixing, cold hydrostatic pressure molding, and heat treatment to get the product..
Main application: Tape hole for BOF
Manufacturing process: High-quality sintered magnesia or fused magnesia as the main raw material, molding with high pressure and high-temperature sintering, with better high-temperature strength, better erosion resistance, better abrasion resistance, and better thermal shock resistance.
Main application: Permanent lining for BOF
Manufacturing process: A certain percentage binder of ceramic fiber as raw material, through pressure, curing qualitative, and vertical and horizontal cutting processes to get the product.
Main application: Industrial furnace wall lining, door and roof sealing, marine, aviation, precision industrial equipment, heating equipment, etc.
Manufacturing process: High-purity magnesite and bauxite as the main raw material, through resistance vibration molding and heat treatment process to obtain the product, the slag efficiency reached 96%.
Main application: BOF slag tapping
Manufacturing Process: With Magnesia and synthetic Dolomite as the main raw material, adding a variety of complex additives and mixing. Due to high-purity magnesia and complex additives, the adhesive rate is 95% higher, and with better corrosion resistance and thermal stability, it’s the optimum gunning material for impact and slag position.
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Main Application: BOS working lining repair (commonly slagline and trunnion)
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Application Method: Will fit any kind of gunning material equipment with 12-16% water addition. With an average of 20-30mm applied thickness, extensive lining protection could be 5-12 times.
Manufacturing process: Magnesite and synthetic dolomite as the main raw material, adding a sintering agent and pressed by heat mixing.
Application Method: For a large area patching, charge to the position that needs to be repaired between 300 to 2000kg (according to the furnace size, erosion degree, and area to increase or decrease the quantity) of patching, material by using chute and allow for 10-30 minutes (decided by the thickness of gunning materials) of sintering. For small areas, throw in the hot patching materials pre-packed into 5-10kg bags as per the requirements of different plants.
Refractory Materials for EAF
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Manufacturing process: High-quality fused magnesia and flake graphite as the main raw material, organics as a binder, adding anti-oxidants, pressed by h mixing and high pressure.
Main application: For masonry ordinary electric furnace and high power electric furnace working lining.
Manufacturing process: Synthetic dolomite sand and high purity magnesite sand as the main raw material, adding a certain amount of binder and pressed by mixing.
Main application: For AC and DC EAF hearth ramming.
Application Method: The application method is very simple, covering 100~150mm thickness ramming mass in the bottom. After the vibration compacting, scrap the surface and then cover another layer and so on. After bottom installation, cover a thin steel plate to avoid damage the surface when load the scrap steel or hot metal.
Manufacturing process: High-quality magnesite or magnesium olivine as the main raw material, adding a variety of complex binders and additives in combination and pressing by mixing.
Main application: Mainly used for gunning for entire furnace wall including hot wall areas, it fits any type of gunning equipment. Adding water 13-16%, gunning thickness 20-30mm, it can be used 3-15 times
Manufacturing process: Synthetic dolomite sand as raw material, adding binder and agglutinant, pressed by heating mixing.
Main application: For slope area hot repair, the method can be thrown by manpower.
Manufacturing process: Synthetic magnesia as main raw materials, strictly control the particle size ratio and adding a certain amount of binder and pressed by mixing.
Main application: Filling for a variety for EAF taphole, open casting rate is more than 95%
Manufacturing process: High quality fused magnesia and flake graphite as the main raw material, organics as the binders, adding anti-oxidants, pressed by heat mixing, high pressure molding and heat treatment process.
Main application: Taphole for EAF
Manufacturing process: High quality fused magnesia and flake graphite as the main raw material, organics as the binders, adding anti-oxidants, pressed by the cold hydrostatic pressure molding and heat treatment.
Main application: Bottom blowing for EAF
Manufacturing process: High quality sintered magnesia or fused magnesia as main raw material, pressing by high pressure and high temperature sintering, with better high temperature strength, better erosion resistance, better abrasion resistance and better thermal shock resistance.
Main application: Permanent lining for EAF
Manufacturing Process: High-quality caustic calcined magnesite as the main raw material, adding binders and briquetting after mixing & high-pressure briquetting.
Main application: For adjusting furnace slag composition in order to improve the life of furnace lining.
Manufacturing process: High quality caustic calcined magnesite and caustic calcined dolomite powder as raw material, adding water and binders and briquetting after mixing & high pressure briquetting.
Main application: For adjusting furnace slag composition in order to improve the life of furnace lining.
Manufacturing process: Amorphous Graphite as main raw material, pressing through smash, sorting, drying and sieving.
Main application: Carbon Steel, oxygen heating agent, deoxy, purification of molten steel and increasing the metal yield.
Manufacturing process: Anthracite or amorphous graphite as the main raw material, adding water and other binders, briquetting after mixing & high pressure briquetting.
Main application: Carbon steel, oxygen heating agent, deoxy, purification of molten steel and increasing the metal yield.
Manufacturing Process: With Magnesia and synthetic Dolomite as the main raw material, adding a variety of complex additives and mixing. Due to high-purity magnesia and complex additives, the adhesive rate is 95% higher, and with better corrosion resistance and thermal stability, it’s the optimum gunning material for impact and slag position.
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Main Application: BOS working lining repair (commonly slagline and trunnion)
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Application Method: Will fit any kind of gunning material equipment with 12-16% water addition. With an average of 20-30mm applied thickness, extensive lining protection could be 5-12 times.
Manufacturing process: Magnesite and synthetic dolomite as the main raw material, adding a sintering agent and pressed by heat mixing.
Application Method: For a large area patching, charge to the position that needs to be repaired between 300 to 2000kg (according to the furnace size, erosion degree, and area to increase or decrease the quantity) of patching, material by using chute and allow for 10-30 minutes (decided by the thickness of gunning materials) of sintering. For small areas, throw in the hot patching materials pre-packed into 5-10kg bags as per the requirements of different plants.
Refractory Materials for Ladle
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Manufacturing process: To withstand various elements within modern LMF steel making process. Only the highest grades of raw materials have been selected to undergo an arduous process and quality control measures throughout the entire production process.
Carefully selected and controlled high purity magnesia and ultra high purity flake graphite have been utilized with special metallic and/or non metallic additives.
Main application: To provide optimum performance as the ultimate ladle working lining.
Manufacturing process: Based on high purity silica and chromite sand.
Main application: Ladle taphole filler have been in wide usage in various steel making shops with good opening rate, beyond 98%.
Manufacturing process: With high alumina bauxite, corundum, high quality fused magnesia and flake graphite as the main raw material, using phenolic resin for binder and adding antioxidants after hot mixing and high-pressure forming and heat treatment technology were made.
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Main application: To provide optimum performance as the ultimate ladle working lining.
Manufacturing process: Based on high purity bauxite and fused Alumina with special proprietary binding system.
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Main application: Effective and time-saving monolithic material has been developed for those steel—making shops opting for monolithic ladle linings.
Manufacturing Process: Magnesia Calcia Carbon Bricks in construction of calcium as the main raw material, with special organic binder and with special made of hydration treatment.
Main application: It is mainly used in refining ladle, can absorb molten steel of non matellic inculsion in the process of using and achive the purpose of purifying molten steel.
Utilizing corundum as main raw material using organics binder and adding antioxidants after hot mixing and high-pressure forming and heat treatment technology were made.
Main application: Tapping Area of Ladle
Manufacturing process: Utilizing synthetic MgO—CaO clinker asraw material. Being fired in high temperature tunnel kiln, and undergo vaccum pressure and paraffin impregnated process.
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Main application: Be utilized on AOD, VOD furnaces. The bricks have good performance in slag resistance and good ability in purifying the steel, It is the best option to utilize these bricks on working lining of super clean steel furnace
Manufacturing process: Utilizing on high purity bauxite and fused Alumina with special proprietary binding system. Coagulant and water reducing agent is made by mixing
Main application: Around wellblock and Purging Plug Area.
Manufacturing process: Utilizing corundum as main raw material, using organic binder and adding antioxidants after hot mixing and high pressure forming and heat treatment technology were made.
Main application: Nozzle well block for ladle
Manufacturing process: Utilizing Alumina and chromium oxide green as the main by powder mixing, adding water mixing, moulding. demoulding, drying, sintering, steel assembly. Inspection of finished product and flow inspection.
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Main application: The Purging Well Block series products works as a key element of the ladle low blowing system. According to the installation, it can be divided into well block and assembly to integral purging well block. The same material. Using chrome corundum spinel materials. the production process is the difference.
Manufacturing process: Utilizing Ceramic fiber felt to contain a certain proportion Of adhesives the raw material, after pressure, solidification and shaping, cutting and other processes are made.
Main application: Insulating Area of Ladle
Manufacturing process: Utilizing corundum as main raw material, using organic binder and adding antioxidants after hot mixing and high—pressure forming and heat treatment technology were made.
Main application: Tapping Area of Ladle
Manufacturing process: Optimizing fused magnesia chrome clinker, sintereted magnesia chrome clinker, high grade chromite and high grade sintered magnesite as raw material. The brick have good strength,good slag resistance and thermal resistance
Main application: Magnesia chrome bricks for VOD,AOD,RH Refining furnace.
Manufacturing process: Utilizing tabular corundum as main raw material, using organics binder and adding antioxidants after hot mixing and high—pressure
forming and heat treatment technology were made.
Main application: For Continuous Tapping Area of Ladle
Manufacturing Process: With Magnesia and synthetic Dolomite as the main raw material, adding a variety of complex additives and mixing. Due to high-purity magnesia and complex additives, the adhesive rate is 95% higher, and with better corrosion resistance and thermal stability, it’s the optimum gunning material for impact and slag position.
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Main Application: BOS working lining repair (commonly slagline and trunnion)
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Application Method: Will fit any kind of gunning material equipment with 12-16% water addition. With an average of 20-30mm applied thickness, extensive lining protection could be 5-12 times.
Manufacturing process: Magnesite and synthetic dolomite as the main raw material, adding a sintering agent and pressed by heat mixing.
Application Method: For a large area patching, charge to the position that needs to be repaired between 300 to 2000kg (according to the furnace size, erosion degree, and area to increase or decrease the quantity) of patching, material by using chute and allow for 10-30 minutes (decided by the thickness of gunning materials) of sintering. For small areas, throw in the hot patching materials pre-packed into 5-10kg bags as per the requirements of different plants.
Refractory Materials for Tundish
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Manufacturing process: Utilizing high purity magnesite and calcined olivine as raw material. adding binding agent, water reducing agent and antiknock agent and mixing the material
Main application Be utilized gunning the working lining of tundish.
Manufacturing process: Utilizing high purity magnesite and calcined olivine as raw material adding binding agent, dispersing agent and antiknock agent and mixing the material.
Main application: Be utilized in manual coating the working lining of tundish.
Manufacturing process: Utilizing high purity magnesite and calcined olivine as raw material adding binding agent, dispersing agent and antiknock agent and mixing the material.
Main application: Be utilized in manual coating the working lining of tundish.
Manufacturing process: Utilizing Bauxite as main raw material. using organic binder and adding antioxidants after hot mixing and high-pressure forming and heat treatment technology were made.
Main application: Using in safety lining of Tundish, with insulation, heat preservation and the role Of the security.
Manufacturing process: Utilizing corundum as main raw material, using organic binder and adding antioxidants after hot mixing and high—pressure forming and heat treatment technology were made.
Main application: Tundish upper nozzles along with stopper rods are able to improve the casting sequence significantly
Manufacturing process: Utilizing corundum as main raw material, using organic binder and adding antioxidants after hot mixing and high pressure forming and heat treatment technology were made.
Main application: The connection between molten steel to crystallizer of tundish
Shrouds are applied to connect ladle to tundish. They stabilize molten steel streams and protect molten steel from being oxidized and splashing, PN series of shrouds feature superior thermal resistance to slag erosion, wear resistance, thermal shock resistance, etc.
The stopper rods control the molten steel from to mould flow. Series of stopper rods feature good resistance to erosion and corrosion, steady flow and tight closure.
Submerged entry nozzle has good reputation for excellent slag resistance, anti-clogging, long service life and low accident rate
The application of slag dam could change molten-steel flows in tundishes makes the impurities float up and purify molten steel.
The fixed diameter nozzles in mosaics form, it includes regular type and quick-change type. The inner core of the nozzle principal component of Zirconium dioxide has characteristics of high refractoriness, good thermal shock resistance, erosion resistance and sourcing resistance, small hole enlargement, long service life etc.
Quick change type fixed diameter nozzle with the aid of quick-change system, it can change multiple bottom nozzles during a casting time of tundish and used to match the long life of tundish lining.
The SM TSM-85 is a ceramic/chemical-bonded basic spray mass specifically designed for use as a wear lining material in direct contact with the steel bath within a tundish.
This product exhibits exceptional attributes, including high density, superior strength, outstanding resistance to corrosion, and remarkable thermo mechanical strength, all while maintaining excellent volume stability.
Manufacturing Process: With Magnesia and synthetic Dolomite as the main raw material, adding a variety of complex additives and mixing. Due to high-purity magnesia and complex additives, the adhesive rate is 95% higher, and with better corrosion resistance and thermal stability, it’s the optimum gunning material for impact and slag position.
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Main Application: BOS working lining repair (commonly slagline and trunnion)
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Application Method: Will fit any kind of gunning material equipment with 12-16% water addition. With an average of 20-30mm applied thickness, extensive lining protection could be 5-12 times.
Manufacturing process: Magnesite and synthetic dolomite as the main raw material, adding a sintering agent and pressed by heat mixing.
Application Method: For a large area patching, charge to the position that needs to be repaired between 300 to 2000kg (according to the furnace size, erosion degree, and area to increase or decrease the quantity) of patching, material by using chute and allow for 10-30 minutes (decided by the thickness of gunning materials) of sintering. For small areas, throw in the hot patching materials pre-packed into 5-10kg bags as per the requirements of different plants.
Refractory Materials for Secondary Steel Making
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Main application in super clean steel and ultralow carbon steel lining
Main application at the easily eroded area around the lance
Manufacturing process: The AOD furnace refractory material mainly are magnesia calcium bricks and half combining magnesia chrome bricks. the product with high quality synthetic calcium magnesia sand as raw material, according to different needs, choose MgO-CaO ratio, high temperature firing, vacuum pressure impregnating pitch or paraffin. High temperature performance and excellent slag resistance.
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Main application: Apply to refining furnace of AOD, VOD
Manufacturing process: Use high quality sintered or fused magnesia as main materials, through high pressure forming and high temperature sintered, good high temperature strength, erosion resistance, and strong abrasion resistance and good thermal shock resistance.
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Main application: Applicable to permanent lining of converter and electric furnace, ferroalloy electric furnace working lining and regenerator of glass kiln whose upper and middle checker work part. It has such a good and excellent performance.
Manufacturing process: The product with high quality fused magnesia, fused magnesia chrome sand as main raw material, through high pressure moulding, high temperature sintering. Its characteristic is strong erosion resistance
Main application: Mainly used for VOD/AOD/SKF/LF/RH furnace outside of refining furnace.
Refractory Materials for Iron Making
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Environmental protecting type anhydrous tap hole clay choose Al2O3 – SiC – C, use bauxite, fused alumina, mullite, coke, silicon carbide, etc as main raw material, according to the different needs of blast furnace provide high quality tap hole clay with different aggregate combination.
Product have advantages of easy close and open nozzle, abrasion resistance, environmental friendly, it is suitable for different type of blast furnace’s tap hole.
Manufacturing process: Use bauxite, corundum, pyrophyllite silicon carbide and flake graphite as main raw material, it made from phenolic resin as binder after mixing and high pressure hot forming and heat treatment process.
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Main application: Install the torpedo tank and hot metal ladle’s working lining
Refractory Materials for Building Material
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The product use high purity magnesia, sintered magnesia alumina spinel as main raw material, after reasonable grade mixing, high pressure forming, high temperature firing, It is characterized by excellent volume stability at high temperature and thermal shock resistance. It is special products for large and medium-sized cement rotary kiln’ s transition zone.
The product high purity magnesia and hercynite spinel as main materials, strictly control of firing stability and firing atmosphere, make the product has good flexibility and thermal shock resistance. Adhering coating and erosion resistance better than the high quality magnesia chrome bricks. It is a new generation product of large dry process cement kiln lining,
These bricks use sintered magnesia, high purity chrome ore as raw materials, after reasonable ingredients, high pressure molding and high temperature firing. According to the using conditions and requirements of cement kiln, choose different brand of magnesia chrome bricks.
The product uses raw materials which after reasonable distribution, high pressure forming and high sintering. The product has strong ability of resistance erosion of slag. Mainly used in glass kiln’ s regenerator’ s checkers.
The product use high quality sintered magnesia, sintered synthetic magnesia chrome sand, high purity of chromium concentrate as main raw material, after reasonable distribution, high pressure forming, and high temperature sintering. Products with excellent erosion resistance and thermal shock resistance. Mainly used for glass kiln regenerator’ s checkers.
The product use fused magnesia, zircon sand as main raw material, synthetic magnesia-zircon sand as main raw material, after high perssure forming, high tempreature sintering. Its main mineral phases are periclase, magnesia olivine and baddeleyite. It has excellent resistance to erosion of alkali metal oxcide and sulfide, it is used in glass kiln regenerator checkers’s upper-middle body part, no blockage and collapse phenomenon, the service life can reach more than 8 years.
Manufacturing process: Use high purity magnesia, synthetic magnesia-alumina spinel as main raw materials, after high pressure forming, high temperature refining, it has excellent thermal shock resistance, high tempreature stability and the ability to resist erosion volume.
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Main application: Glass kiln regenerator grid in upper-medium part, large areas such as the transition zone of cement rotary kiln, it has excellent perfomance.
The products use fused magnesia as main raw material, after reasonable distribution, high pressure forming and temperature sintering. The product has strong resistance to slag erosion and high volume stability at high temperatures. Mainly used in glass kiln in the regenerator’ s middle-upper part.
Manufacturing process: The mullite bricks is made from hogh quality, high purity mullite stone, according to the proportion of products requirement, join the organic composite fillers, after vaccum extrusion forming, after high temperature sintered to form this lightweight synthetic mullite product.
Main application: Maily used in glass kiln, non alkali woven kiln, blast furnace hot blast stove, the key part of refractory tunnel kiln and other kilns.
Magnesia alumina spinel bricks find extensive applications across various industrial settings, including non-ferrous metal smelting furnaces, steel-nickel furnaces, aluminum-smelting furnace linings, electric furnace covers, steel drum linings, high-temperature zones within cement kilns, and the kiln walls of glass furnaces.
It's important to note that the specifications for these bricks should be tailored to the specific requirements of each furnace or kiln.
The product use high purity sintered magnesia as the main raw material, after reasonable matching, high pressure forming and high temperature sintering. The product has strong ability to slag erosion resistance.
Refractory Materials for Non-Ferrous
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Manufacturing Process : In high purity magnesia, high quality chrome concentrate and sintered magnesia chrome sand of fused synthetic magnesia chrome sand as the main raw material, through high pressure and molding and high temperature sintering
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Main Application : Used in nonferrous smelting furnace
Manufacturing process : In high purity magnesia, high quality chrome ore and fused synthetic magnesia chrome sand as the main raw material, through high pressure molding and high temperature sintering.
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Main application : For a blast furnace, reverberatory furnace, silver smelting copper furnace, mineral hot furnace and flash smelting furnace, BOF and continuous melting copper furnace
Manufacturing process: In high purity magnesia, high quality chrome ore and fused synthetic magnesia chrome sand as the main raw material, through high pressure molding and sintering.
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Main application:For a blast furnace, closed blast furnace smelting, oxygen bottom blown smelting furnace (QSL) and KIVCET method be used for the direct lead smelting furnace.
Manufacturing process: It is made of high quality magnesia , fused magnesia chrome sand as the main raw material, through reasonable size distribution, high pressure forming and sintering Naicheng
Main application: Used in alloy furnace
Main Application : It is mainly used in metallurgical industry, such as for
building open-hearth furnace top, electric furnace top, finery out of furnace
and all kinds of non-ferrous metal metallurgy furnace
Manufacturing process : The product with high quality magnesite as main raw material, through reasonable size distribution, high pressure forming and sintering .
Main application: Used ore smelting furnace.
Raw Refractory Materials
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Manufacturing process : Be utilized to produce filling material for taphole of Ladle and EAF Insulation Board for Tundish and gunning material, etc.
Manufacturing process : Be utilized to produce filling material for taphole of Ladle and EAF, insulation board for Tundish
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Main application : For a blast furnace, reverberatory furnace, silver smelting copper furnace, mineral hot furnace and flash smelting furnace, BOF and continuous melting copper furnace
Manufacturing process: Carbon powder mainly raw material, is amorphous graphite, after crushing flotation drying and screening then make the finished product.
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Main application: The heating agent molten steel carburetion and furnace blowing, deoxidization and purifying molten steel and increase the rate of metal
Manufacturing process: Base on amorphous graphite as mainly raw material, mix with water and additive, through high pressure into briquette
Main application: The heating agent molten steel carburetion and furnace blowing, deoxidization and purifying molten steel, increase the rate of metal
Manufacturing process : Be utilized to produce ramming material, hot patching material and Dolomite bricks for converter and ladle refining furnace, etc
Manufacturing process: Be utilized to produce magnesia carbon bricks, aluminia magnesia carbon bricks, gunning material and hot patching material for BOF, EAF and Ladle
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​Manufacturing process:Be utilized to produce magnesia carbon bricks and monolithic materials
@ AKARI Works
