Dense Silica Refractory Brick
High Alumina Bricks Series
High alumina brick is a kind of refractory the main component of which is Al 2 O 3 If Al 2 O 3 content is higher than 90 it is called corundum brick Due to different resources the standards of different countries are not completely consistent For example in European countries the lower limit of Al 2 O 3 content for high alumina
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process of making of silica bricks
Process for making silica stone materialHermann Salmang This invention relates to a method of treating a crude silica mass to convert the same into tridymite or if desired into silica bricks in which the quartz is not entirely converted into tridymite
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Silica Brick
Silica refractory brick is fused silica refractory a acid refractory brick which mainly consisting of tridymite cristobalite and a small amount of residual quartz and glass phases The silicon content is 94 or more True density of the silicon brick is 2 35g/cm3
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PDF Manufacturing Refractory Silica Bricks From Silica Sand
Silica bricks are acid refractory capable of carrying a load 3 5 Kg/cm 2 t o a fe w d eg re e of fusion points 1710 1730 o C and which can safely be used in structures up to 1650 o C It
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HARD BRICKS Firebrick
Dense Fire Bricks are also known simply as hard brick These bricks are very heavy at about 8 pounds each They are highly refractory with high service operating temperatures The color varies some but are all yellow tan to light orange in color
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ASTM C27
3 1 Alumina silica refractory brick is produced from various combinations of alumina and silica containing materials These bricks can vary in chemical composition from almost 100 alumina and little silica to almost 100 silica and little alumina It is therefore useful to establish a classification scheme based on physical properties and chemical analysis
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Why coke oven must use silica bricks
Jun 10 2015 Silica brick belongs to acidic refractory material has good acid resistance erosion ability its good thermal conductivity high refractoriness under load general in 1620 DEG C above only than the low refractoriness of 70 to 80
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As a wall material for a coke oven a fired silica refractory material having a bulk density of at least 1 90 grams/cm 3 a total porosity less than 20 percent and a thermal conductivity of at least 2 0 Kilocal per m hr C at a test temperature of 1 200 C made from a batch consisting essentially of at least 95 percent by weight SiO 2
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China Refractory Silica Brick for Oven
Refractory Silica Brick for Oven Features 1 High refractoriness 2 Have a good fight acid slag erosion ability 3 High volume stability Application Silica brick is mainly used for Coke oven glass kiln hot blast stove tunnel kiln Acidic furnace non ferrous metal smelting and some other thermotechnical equipment in good furnace building
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Silica Brick
Silica brick is a kind of refractory products with SiO2 content no less than 93 Silica brick s main raw material is silica ore containing more than 96 of SiO2 additives such as mineralizer and bonder are added into raw material during production The production processes of silica brick are mixing molding drying and sintering
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Refractory Brick
Silica brick is an acid refractory material composed of tridymite cristobalite and a small amount of residual quartz and glass phase Silica bricks have good resistance to acid slag erosion The refractoriness under load is as high as 1640 1670℃ and the volume is relatively stable under high temperature for long term use
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Light Weight Silica Insulation Brick
Light Weight Silica Insulation Brick is an insulating refractory product made of silica as a main raw material and having a SiO2 content of not less than 91 The main mineral composition is phosphorus quartz and cristobalite It is suitable for industrial furnaces such as coke ovens hot blast stoves glass melting furnaces and carbon
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Refractory Wood Stove Silica Insulating Fire Bricks High
Refractory Manufacturer fireplace silica brick refractory for wood stove high density silica insulating fire bricks generally use crystalline quartzite or silica sand as raw materials and the mineral composition is phosphorite 78 to 86 cristobalite 13 to 15 and quartz 4 to 7 Add combustible materials to the ingredients such as coke
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Silica Refractory Brick
Silica Brick is a kind of acid refractory with over 93 SiO2 content and 2 35g/cm3 true density which has various features of low volume expansion excellent high temperature strength strong acid slag erosion resistance And the refractoriness is 1690 1710 C RUL is beyond 1620 C
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Silica Brick
Silica is a refractory ceramic which is widely used in the steel and glass industries Silica bricks are prepared by kiln firing quartz of low impurity content at a temperature of 1450 C thereby converting at least 98 5 of it into a mixture of the more
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China Dense Alumina Zirconia Silica Bricks for Glass
Azs Refractory Brick Bonded Azs Bricks Glass Melting Furnace manufacturer supplier in China offering Dense Alumina Zirconia Silica Bricks for Glass Industrial Furnaces Refractory Aluminate Cement A900 A600 A700 Thermal Insulation Ceramic Fiber Blanket for Industrial Furnace and so on
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Refractory Bricks
Refractory Bricks Alumina Silicate High Alumina Silicate Mag Chrome Magenesite Mag Carbon Silicon Carbide Carbon Graphite Mag Spinell Refraline South Africa is a stockist of a wide range of refractory bricks which include normal duty ND regular duty RD super duty SD 60 to 90 Alumina The bricks are sourced from quality
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ISO
ISO 21079 3 2008 Chemical analysis of refractories containing alumina zirconia and silica Refractories containing 5 percent to 45 percent of ZrO2 alternative to the X ray fluorescence method Part 3 Flame atomic absorption spectrophotometry FAAS and inductively coupled plasma emission spectrometry ICP AES 90 93 ISO/TC 33
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Silica Bricks
Silica bricks consist of > 90 percent by weight of SiO₂ In general the SiO₂ content is 95 to 97 weight Silica products are divided into dense and light Depending on the requirements and demands they find application in a variety of aggregates
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Silica Bricks For Sale in RS Refractory Company adopt silica as the raw material and lime milk iron phosphorus and sulfite lye as the binding agent and mineralizer are manufactured through firing in the high temperature and go through strong chemical and mechanical erosion Silica Brick is a kind of acid refractory with over 93 SiO2 content and 2 35g/cm3 true density
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What is the Unit Weight of Refractory Bricks RS Kiln
Mar 03 2021 Therefore the weight standard of refractory bricks must first be determined whether it is heavy refractory bricks or light refractory bricks If you follow the high alumina refractory GB/T2988 2012 physical and chemical index constant weight standard you can refer to the density index and then estimate the weight
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Dense refractory bricks THERMObrick presents high grade dense refractory bricks with extended mechanical strength and resistance against aggressive components The bricks are well sintered and designed for the hot face layer application Beside standard straights and arches/wedges a various number of shape sizes and special shapes are available
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China Dense Alumina Zirconia Silica Bricks for Glass
China Dense Alumina Zirconia Silica Bricks for Glass Melting Furnace for Sale Find details about China Azs Refractory Brick Bonded Azs Bricks from Dense Alumina Zirconia Silica Bricks for Glass Melting Furnace for SaleZibo Hitech Material Co Ltd
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Silica Brick
Silica Brick for Coke Oven Application Silica brick for coke oven is made of siliceous material with over 93 of silicon to build coke oven It has strong acid slag corrosion resistance and high loading softening temperature and doesn t shrink after reheating
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Products
Dense Refractory Brick are used in applications with extreme mechanical erosive chemical or thermal stresses Insulating Brick are more porous lightweight bricks primarily used to insulate furnaces kilns and process equipment They are generally weaker but much lighter easier to form and insulate far better than dense bricks
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China Refractory Bricks Fire Bricks Silica Bricks for
Silica brick is a kind of basic refractory and has good corrosion resistance to acid slags It is mainly made from natural silica sand whose SiO2 content should be more than 96 The higher SiO2 content in silica sand the higher temperature silica bricks resist
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Dense microstructure of Fused cast AZS 33# bricks to glass corrosion resistant performance is good not easy to produce slag and other defects in glass kiln It is the most widely used in the products of glass furnace the upper part of the structure is mainly applicable to the molten pool pool wall brick and tile work pool material etc
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The Red Silica Mullite Bricks are made of andalusite brown corundum high alumina bauxite clinker silicon carbide and a binder After granulating and powdering the mixture is mixed in a certain proportion and then pressed and formed at high temperature This Refractory Brick Product with high softness high strength low thermal
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Thermal conductivity of refractory bricks
As the temperature rises although the difference between the thermal conductivity of various refractory bricks tends to decrease but the difference is still large Such as 1000 degrees centigrade the thermal conductivity of lightweight silica is only about 0 35W recrystallized silicon carbide products is about 17 5W m℃ graphite can
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China Silica Brick Silica Brick Manufacturers Suppliers
A9 Silica Brick for Glass Blowing Furnace Sio2 94 95 Superduty Silica Brick for Nonferrous Metal Furnace 230X114X60/50/40/30mm Silicon Brick Quartzite Brick FOB Price US 250 600 Ton Min Order 1 Ton Refractoriness ℃ 1580< Refractoriness< 1770
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Quality Clay Refractory Brick High Alumina Refractory
Refractory Manufacturer fireplace silica brick refractory for wood stove high density silica insulating fire bricks High Cold Crushing Strength 72 Al2O3 Mullite Insulating Brick Gunning Material Spray Paint 0 5 CaO2 Steel Making Refractories
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Alumina Silicate Fire Brick for Sale Aluminum Silicate Brick is a kind of refractory with Al 2 O 3 and SiO 2 as main components According to the content of alumina it can be divided into silica bricks 15 30 alumina clay bricks 30 alumina 48 high aluminum bricks alumina content more than 48 This product is widely used in steel industry ceramic glass
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It can be divided into shaped and unshaped refractory materials The main variety is silicon brick Using silica as the raw material and firing at 1350 1 430℃ the main phases in the silica brick are transformed into scale quartz cristobalite and glass The true density must be in the range of 2 31 to 2 42 grams per cubic centimeter
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Light Weight Silica Insulation Brick
Light weight silica brick is classifed in group 30 by ASTM standards which is also known as siliceous silica insulating brick over 91 volume density under 1 2 g/cm3 lightweight refractory materials Refractoriness and refractoriness under load and the composition of the same common silica brick But due to the porosity so the compression
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Tabcast 94 manufactured by Caldreys India Refractories Limited is 94 alumina hydraulic setting dense Castable which is suitable for service temperature up to 3270 F 1800 C It is premixed refractory compositions which can cast into any require shape and size It has good mechanical strength with excellent resistance to chemical attack for having purity chemical
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Silica insulation bricks are one kind of light weight insulation bricks with over 91 silica content and less than 1 2g/cm3 density silica insulation brick can service in the high temperature between 1500 1550℃ for long term and silicon insulation brick is wildly used for the insulation of industrial furnace such as glass plant furnace and other furnace boilers with
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