Tall aluminous brick implements standard and groovy measure

Tall aluminous brick serves as commonly used firebrick, in applying daily our call a law to have a lot of, detailed common standard was summed up to call a law correspondence for everybody below.

    The chemical composition tall aluminium of tall aluminous alumina is aluminous and chemical in composition, bases is Al2O3 and SiO2, its typical chemical composition, the chemical composition that presses bauxite and utility classification.

Taste to 6 class apply to 7 class of; of one water duralumin ore to taste apply to aluminium ore.

Al2O3 is the bases in bauxite, its content has been jumped over higher, does at present manufacturing industry alumina ask aluminous silicon is compared not under 3? 3.5. Other oxide treats foreign matter, siO2 is the harmful impurity of alumina of alkaline law production, the SiO2 content in bauxite is high, manufacture those who make smelt palm corundum perhaps produces industrial alumina loss of efficiency.

The TiO2 in tall aluminous alumina and Fe2O3 are two kinds of main impurity. The content of TiO2 often as the heighten of Al2O3 synchronism increases. Consider to make clear: TiO2 is in alumina of 2 class tall aluminium, basically fashion solid solution with Molaishi, enter vitreous phase the quantity is little, adverse to goods agglomeration, but the high temperature that is helpful for improving product is mechanical function; and in fancy, Ⅰ , Ⅲ in tall aluminous alumina, tiO2 enters vitreous phase more, can increase fluid photograph amount consequently, reduce fluid photograph viscosity, be helpful for agglomeration, but go against the high temperature capability that improves product.

The K2O of alkali metal oxide of tall aluminous alumina, Na2O is a kind of very strong flux, they produce fluid photograph below inferior temperature. When its content on the high side, can affect the photograph composition of clinker and goods and content, bring adverse effect to the function of goods.

The CaO content in tall aluminous alumina is general and inferior, about 0.2% . Its existence is adverse to the high temperature capability of goods, to its in technical condition content also has restriction.

1, date of tall aluminous brick is T - the firebrick dimension of 46 is A275 B230 C150 E80 D15α60°Bulk 6565 weight (argillaceous brick) 13.5 weight (half silica brick) 13.1 weight (half silica brick) 12.5;

2, date of tall aluminous brick is T - the firebrick dimension of 47 is A275 B230 C450 E80 D15α60°Bulk 19695 weight (argillaceous brick) 40.4 weight (half silica brick) 39.4 weight (half silica brick) 37.5;

3, date of tall aluminous brick is T - the firebrick dimension of 48 is A275 B275 C150 E65 D65 α45°Bulk 8040 weight (argillaceous brick) 16.5 weight (half silica brick) 16.1 weight (half silica brick)

4, general firebrick dimension namely T - 3 firebrick dimension is 230 ＊ 113 ＊ 65, GB and ministry mark dimension grow thick T of X wide X almost - 1: 114 ＊ of 172 ＊ 65 T - 2: 114 ＊ of 230 ＊ 32 T - 3: 114 ＊ of 230 ＊ 65 T - 4, it suits to be not special architectural building for the most part.

Executive standard of tall aluminous brick is GB/T 2992——1982 " general

Firebrick

Shape size " , GB/T 1590——1979 " magnesia brick and appearance of magnesian silica brick and dimension " with GB/T 2074——1980 " refine copper furnace uses measure of appearance of magnesian chromic brick " edit, incorporate its for a standard.

This standard is not equivalent to use international standard ISO 5019-1: 1984 " firebrick - dimension - the first part: Straight form brick " ; ISO 5019-2: 1984 " firebrick - dimension - the 2nd part: Wedge brick " ; ISO 5019-5: 1984 " firebrick - dimension - the 5th part: Arch foot brick " . Length of the brick in this standard reachs 345mm except the 230mm that uses international level outside, still withheld our country 300mm, 380mm and 460mm, bricky width uses the 114mm of international standard and 150mm. Bricky ply withheld 65mm and 75mm.

This standard made to 3 afore-mentioned original standards following edit:
—— made a written language to bricky name and main measure parameter definition, express with attached drawing or formula.
—— was done to bricky date revise, cancelled code name.
—— is calculated mediumly to original standard appendix the method was made compact, perfect, adapt for appendix A.
—— added 75mm to wait among

The dimension of firebrick

Set upright thick wedge brick and straight form brick.
The size that to be on oblique plane 230mm, 300mm reachs firebrick of 460mm arch foot made —— revise, standard banking angle adopts 60°/30° and 50°/°40.
—— is expunged blame is general

Different firebrick

.
This standard rises from executive day, replace GB/T 2992——1982, GB/T 1590——1979, GB/T 2074——1980.
The appendix A of this standard is standard appendix.
This standard is put forward by ministry of former metallurgical industry.
This standard standardizes technical committee to put in a mouth 's charge by countrywide fireproof material.
This standard is in charge of drafting an unit: Wuhan is steely (group) company.
This standard basically drafts a person: Xue opens country of article, 10 thousand Xiaoping, Gong Jiaxue, Gao Jianping, Founder.

1. Limits

Notation of date of the definition that this standard fixed general firebrick, brick, norms, dimension reachs dimension parameter.
This standard applies to industrial furnace kiln to wait for line of brick of hot project facilities

1. Definition

This standard uses following definition
2.1 general firebrick: Brick of brick of brick of the straight wall bricklaying that points to the hot project facilities such as industrial furnace kiln and the straight form brick that radiation form bricklaying uses, side thick wedge, perpendicular thick wedge, perpendicular wide wedge reachs arch foot brick.
Brick of 2.1.1 straight form: The straight parallel that has length B, wide A and thick C body of 6 face brick, see a picture 1
Firebrick of 2.1.2 side thick wedge (brick of abbreviation side wedge) : Size end is apart from B design to be on width, size carries dimension A big / if A small design pursues:

2.1.3. sets upright brick of thick wedge travel (brick of travel of abbreviation perpendicular wedge: ) size end is apart from B design to be on length, size carries dimension A big / the wedge travel of A small design in ply brick, see a picture 3:
Brick of travel of 2.1.4 perpendicular wide wedge (brick of travel of abbreviation wide wedge) : Size end is apart from B design to be on length, size carries dimension A big / the wedge travel of A small design on width brick, see a picture 4:
2.1.5.

Arch foot firebrick

: Be less than semicircle vault bricklaying of two side bearing a brick, see a picture 5.




                             GB/T 2992——1998                          
 

           
 Graph brick of travel of 3 perpendicular thick wedge                       Graph brick of travel of 4 perpendicular wide wedge

                               Graph 5  Arch foot brick