Mo Laishi firebrick uses temperature intensity and index

Mo Laishi firebrick

Namely: LGM180 one 1.5, LGM one 1.3, LGM150 one 1, LGM150 one 0.8, LGM140 one 0.7, LGM125 one 0.5 in all 6 brands, among them: LGM125 one 0.5 to be equivalent to Mo Laishi goods, basically be low ironwork, already distinction and common tall aluminous qualitative adiabatic firebrick, the American standard JM that uses generally with the market again one 23 brands comparative, set this brand, basically concern with market demand,

The one manage of 1983 changes GB/T3995 the requirement that index basically can satisfy the market castigatory content is not much, yes

Revise and enlarge undertook on the base that already had manufacturing experience, divide certainly to index by me the factory examines index and absorb partial enterprise to reach in domestic and internationally already standard foundation goes up, sample again undertook detecting.

Bricky permissible variation in dimension and exterior decide really:

 Bricky permissible variation in dimension has in two products classification apparently different,

Considering have already grind goods, shape once again production methods, with shaping accordingly the method gives priority to methodological deviation: Qualitative adiabatic firebrick uses Mo Laishi all the time grind the method that formulate, dimension deviation is relatively accordingly strict.

Of the brick sample with check and accept:

 According to GB/T10325 the one requirement of 2001, dimension and exterior are taken outside examine ruinously sample, press a number to more or less undertake, certain reject allows to exist in every batches of amounts that selective examination,

 Manage changed the ruinous test gauge such as index to decide bulk density, normal temperature is able to bear or endure to intensity of pressure is spent and burn a line to change again 3 index are check and accept a project, gave out tolerance.

So say Mo Laishi firebrick its are fireproof function is really all wool and a yard wide still. Superhigh is high temperature resistant the first selection material that function also yields Mo Laishi firebrick to become kiln of high temperature furnace to build. And of Mo Laishi firebrick detect national level GB/T 35845-2018 " firebrick of Mo Laishi qualitative heat insolation " just carried out formally January 1 in 19 years. To what set in new standard each detect index, everybody still is not too familiar for certain, below small make up introduce in detail for everybody.

Mo Laishi firebrick is to show the tall aluminium that gives priority to brilliant photograph with Molaishi is qualitative fireproof material. General alumina content is in 65% ～ 75% between. Mineral composition divides Molaishi outside, contain alumina among them inferior person still contain a few glass photographs and Fang Shiying; Contain alumina taller person still contain a few corundum. Basically use at lining of blind angle of system of splitting decomposition of kiln of agglomeration of regenerator of kiln of frit of shaft of hot-blast stove roof, blast furnace and hearth, glass, pottery and porcelain, oil to wait.

Above all, the name brand appraisal of Mo Laishi firebrick basically assigns a grade, basically be MG-23, MG-25, MG-26, MG-27, MG-28, MG-30, MG-32. Its add ratio of hot line change correspondingly to not be more than the experiment temperature of 2% to be 1230 ℃ , 1350 ℃ , 1400 ℃ , 1450 ℃ , 1510 ℃ , 1620 ℃ , 1730 ℃ . Next, firebrick manage changes Mo Laishi detect index basically has strength of compression of density of alumina content, ferric oxide content, bulk, normal temperature, heat permanent line changes temperature of bate of loading of rate, coefficient of thermal conductivity, 0.05MPa, fight flake the index such as function. The property of high temperature creep that needs the Mo Laishi firebrick that point out and density measure the key of its quality performance to be in, and its detect correspondingly index is namely heat ratio of permanent line change and bulk density these two index.

Next, exterior of Mo Laishi firebrick and tolerance detect index is measure of main and visible account, permissible variation in dimension, screwy diameter of length of deviation, vertex damage, edge damage length, cave, grain cracks length, opposite side to differ. Notable is, to a few distinctive model its allow Mo Laishi firebrick it is OK that grain cracks length according to supply and demand two decide come from an agreement.

Mo Laishi brick makes a method

1, agglomeration Mo Laishi brick is grain to expect with agglomeration Mo Laishi, fine pink is synthetic Mo Laishi, join a few clay or unripe alumina to make bond, via shaping, firing and make. Mo Laishi brick uses agglomeration makings deserve to compare: Stone of line of 5-40% of agglomeration Mo Laishi, silicon 5? 30% , andalusite 5? 30% , board shape corundum 5? 30% , tenacity accretion 4? 15% with combinative clay 3? 10% make.

2, electric frit Mo Laishi brick has burden with tall alumina or industrial alumina, silica or saggar, in the melt inside electric arc furnace, note again irrigate shape reach anneal to be made.

Affect the property of Mo Laishi firebrick and structural factor

1, Al of raw material of Mo Laishi brick

2

3

2

2, the sort of the impurity in raw material and content.

3, Molaishi is the granuality of raw material, firing temperature and heat preservation time.

Mo Laishi brick uses a note

1, prohibit be being contacted with basic material below high temperature environment.

2, unfavorable use below the environment of tall vapor content.

Firebrick manage changes Mo Laishi index: