English name: High-alumina Brick neutral is fireproof material: Alumina content is in a kind of neuter and fireproof material of 48% above. By alumina or other alumina content taller raw material classics shapes to be become with to calcine. Thermal stability is tall, fireproof degree in 1770 ℃ above. The sex that fight broken bits is better. The liner that is used at build by laying bricks or stones to build furnace of circumgyrate of forge of steel-making electric stove, glass, cement to wait. Advanced and fireproof material: Gao He is soft. Brick of low creep tall aluminium is with fancy alumina. Mo Laishi of frit of electric frit corundum, report is the advanced and fireproof material that main raw material makes. This product has decrescent of high temperature squirm. Fight aggressivity strong. Thermal shock stability is good wait for an advantage, apply to big, medium-sized hot-blast stove, it imports fireproof material to what our country new-style hot-blast stove needs high quality, high quality scales homebred the way that changes a success, already was included spark of national level “ to plan ” project.
Tall aluminous brick is one of fundamental material of industry of whole and fireproof data, its application is very wide, the furnace of kiln of much industry industry such as smelt of iron of usable Yu Gang, cement, glass, nonferrous metal. Ground of common tall aluminous brick combines the classification such as means, function application to be able to be divided for a variety of, for example: Common tall aluminous brick, fight flake tall aluminous brick, chemical union pledges tall aluminous brick is waited a moment tall aluminous brick, gently, purchase in tall aluminous brick in, the user needs according to standard to undertake the technology asks.
The active national level that concerns tall aluminous brick, black metallurgy standard, and building materials occupation standard has the following 6:
1, impervious of YB ∕ T 4577-2016 appears tall aluminous brick
Program of assess of method of requirement of the term that this standard set to impervious appears tall aluminous brick and definition, brand and shape size, technology, experiment, quality, pack, mark, carry, store and quality certificate.
This standard basically is used at liner of the frit aluminous furnace of aluminous industry, holding furnace.
2, brick of GB/T 2988-2012 tall aluminium
Program of assess of method of requirement of size of the classification that this standard provided tall aluminous brick, shape, technology, experiment, quality, pack, mark, carry, store reach quality certificate.
This standard applies to furnace of high temperature kiln to use common brick of tall aluminium of tall aluminous brick and low creep.
3, kiln of JC/T 1063-2007 cement is used fight flake tall aluminous brick
This standard stipulated cement kiln is used fight flake method of requirement of the term of tall aluminous brick and definition, classification and mark, technology, experiment, test gauge criterion, pack, mark, carry with store and quality certificate.
This standard applies to cement kiln to use fight flake tall aluminous brick.
4, YB/T 4439-2014 heating furnace uses brick of high aluminous qualitative anchorage firm
Program of assess of method of requirement of size of the term that this standard set to heating furnace uses brick of solid of tall aluminous qualitative anchor and definition, brand, shape, technology, experiment, quality, pack, mark, carry, store reach quality certificate.
This standard applies to boiler of kiln of type of heating furnace, shuttle and circular fluid-bed to wait for industrial kiln furnace to pledge with tall aluminium anchor originallies brick.
Brick of high aluminous qualitative anchorage firm is to point to have specific figure to be installed on furnace casing of industrial kiln furnace or the steel structure of the lining that prop up, and solid of the break ground in system of fireproof material line mixes embedded the tall aluminium qualitative firebrick of join action.
5, JC/T 350-2013 phosphate combines tall aluminous qualitative brick
This standard replaced JC/T 350-1993 " cement kiln combines tall aluminous qualitative brick with phosphate " .
Method of requirement of the term that this standard set to phosphate combines tall aluminous qualitative brick and definition, code name and classification, technology, experiment, test gauge criterion and the mark is packed, carry, keep in storage and quality certificate.
The phosphate that this standard applies to furnace of kiln of cement etc industry to use combines tall aluminous qualitative brick.
This standard is active standard.
6, firebrick of qualitative heat insolation of GB/T 3995-2014 tall aluminium
This standard replaced GB/T 3995-2006 " tall aluminous qualitative adiabatic firebrick "
Program of assess of method of requirement of the classification that GB/T 3995-2014 standard provided tall aluminous qualitative adiabatic firebrick and shape size, technology, experiment, quality, pack, mark, carry, store reach quality certificate.
The firebrick of tall aluminous qualitative heat insolation that this standard applies to layer of work of stock of thermal insulation of furnace of hot project kiln or melt of direct contact high temperature.
Tall aluminous brick classifies: Brick of brick of brick of one class tall aluminium, 2 class tall aluminium, 3 class tall aluminium, Mo Laishi brick, corundum is Mo Laishi brick, magnesia brick, magnesian chromic brick, silica brick.
The brick that accepts all sorts of norms material to pledge kind, board piece custom-built,
Firebrick kind to finalize the design fireproof material,
Its appearance has standard regulation, when also can be being cut according to needing to build, machine temporarily.
Differentiate by preparation technique can divide for firing brick, do not bake bricks, electric frit brick (founding brick) etc; Can divide by appearance and dimension for standard type brick, common brick, distinctive model the brick.
The raw material of firebrick
Firebrick raw material is a lot of more phyletic, include aluminous every land, kaolin, clay, diatomite, jade-like stone stone, cyanite, andalusite, magnesian olivine, vermiculite, mo Laishi, pyrophyllite, chlorite, dolomite, silicon line stone, magnalium pointed spar, silica, black lead, phenolic aldehyde colophony, pearlite, float bead, contest grand, corundum, vitriolic silicon, carborundum, water glass, silicon collosol, carbonization boron, aluminous acerbity calcic cement, nitrogen turns material, shaly ceramists, alumina, aluminous collosol, zirconia.
Argillaceous brick, tall aluminous brick:
General with 3 oxidation 2 aluminium (Al2O3) content is divisional dot, it is argillaceous brick under the end of 48% , the end of 48 ％ is prep above tall aluminous brick. Normally by content of the Al2O3 in tall aluminous brick cent becomes 3 form: One class tall aluminium- - 75 ％ of aluminous content ＞ ; 2 class tall aluminium- - aluminous content is 60 ～ 3 level of 75 ％ ; are high aluminous- - aluminous content is 48 ～ 60 ％ . Be like Al2O3 content prep above 90 ％ , call corundum brick.
Is tall aluminous brick built in build by laying bricks or stones with the brick proportional how many? Pledge according to different capable person and decide, some firebrick do build by laying bricks or stones partly, used amount is little, and neuter product is wet build by laying bricks or stones, used scale meets a little bit big. So, how much is specific scale?
Tall aluminous brick, clay brick matchs fireclay proportion is 5-8% commonly. Usually, slop is used when firebrick build by laying bricks or stones is built must the chemistry with firebrick is identical.
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