High alumina brick implementation standard and conventional size

As a common refractory brick, high-alumina bricks have many names in daily applications. Here is a summary of the detailed popular standard names for everyone.

Lebo ya juu ya alumina ya matofali / jina la kawaida	kawaida (mm)	Aina ya matofali
T3 high alumina matofali	230 114 * * 65	Moja kwa moja
T6 high alumina matofali	250 123 * * 65	Moja kwa moja
T14 high alumina matofali	171 113 * * 65	Moja kwa moja
T19 high alumina matofali	230 65 * / 55 114 *	Axe
T20 high alumina matofali	230 65 * / 45 114 *	Axe
T29 high alumina matofali	230 65 * / 55 171 *	Axe
T30 high alumina matofali	230 65 * / 45 171 *	Axe
T38 high alumina matofali	230 * 114 * 65 / 55	Aina ya kisu
T39 high alumina matofali	230 * 114 * 65 / 45	Aina ya kisu
Matofali ya juu ya alumina vipande viwili	230 114 * * 20	Moja kwa moja
Matofali ya juu ya alumina vipande vitatu	230 114 * * 30	Moja kwa moja
Sehemu kubwa za matofali ya alumina	230 114 * * 40	Moja kwa moja
Bar ya nusu ya juu ya alumina	230 57 * * 65	Moja kwa moja
Aluminium juu matofali nane	520 230 * * 113	Moja kwa moja
Anzisha matofali kumi ya alumina ya juu	650 230 * * 113	Moja kwa moja
Weka matofali kumi na mbili ya alumina ya juu	780 230 * * 113	Moja kwa moja
Matofali manne ya juu ya alumina	452 230 * * 65	Moja kwa moja
Matofali ya juu ya alumina ya G1	230 150 * * 75	Moja kwa moja
Matofali ya juu ya alumina ya G2	345 150 * * 75	Moja kwa moja
Matofali ya juu ya alumina ya G5	230 150 * / 120 75 *	blade
Matofali ya juu ya alumina ya G6	230 150 * / 110 75 *	blade

The chemical composition of high alumina bauxite In the chemical composition of high alumina alumina, the main components are Al2O3 and SiO2. Its typical chemical composition is classified according to the chemical composition and use of bauxite.

Grades 1 to 6 are suitable for monohydrate duralumin type ore; Grade 7 is suitable for aluminum type ore. Al2O3 is the main component in bauxite. The higher the content, the better. The current production of industrial alumina requires that the ratio of aluminum to silicon is not less than 3.0. Other oxides are regarded as impurities. SiO2 is a harmful impurity in the production of alumina by alkaline method. The high content of SiO2 in bauxite will reduce the production efficiency of smelting brown corundum or producing industrial alumina.

TiO2 and Fe2O3 in high alumina bauxite are the two main impurities. The content of TiO2 tends to increase simultaneously with the increase of Al2O3. Studies have shown that: TiO2 in the secondary high alumina bauxite mainly forms a solid solution with mullite, and the amount of entering into the glass phase is small, which is not good for the sintering of the product, but it is beneficial to improve the high temperature mechanical properties of the product; In bauxite, TiO2 enters the glass phase more, which will increase the amount of liquid phase and reduce the viscosity of the liquid phase, which is conducive to sintering, but is not conducive to improving the high-temperature performance of the product. The alkali metal oxides K2O and Na2O of high alumina bauxite are very strong fluxes, and they produce a liquid phase at a lower temperature. When its content is too high, it will affect the phase composition and content of the clinker and the product, and adversely affect the performance of the product. The content of CaO in high alumina bauxite is generally low, about 0.2%. Its existence is detrimental to the high-temperature performance of the product, and its content is also limited in technical conditions.

1. The size of refractory brick with high alumina brick No. T-46 is a275 b230 c150 e80 d15 α 60° Volume 6565 Weight (clay brick) 13.5 Weight (semi-silica brick) 13.1 Weight (semi-silica brick) 12.5;

2. The size of refractory brick with high alumina brick No. T-47 is a275 b230 c450 e80 d15 α 60° Volume 19695 weight (clay brick) 40.4 weight (semi-silica brick) 39.4 weight (semi-silica brick) 37.5;

3. The size of refractory brick with high alumina brick No. T-48 is a275 b275 c150 e65 d65 α45° Volume 8040 Weight (clay brick) 16.5 Weight (semi-silica brick) 16.1 Weight (semi-silica brick)

4. The size of general refractory bricks is T-3. The size of refractory bricks is 230*113*65. The national standard and ministry standard dimensions are almost the same length X width X thickness T-1: 172*114*65, T-2: 230*114* 32, T-3: 230*114*65