$High Strength Low Cement Corundum fireclay Refractory Insulation Castable Featured Image$

$High Strength Low Cement Corundum fireclay Refractory Insulation Castable$

High Strength Low Cement Corundum fireclay Refractory Insulation Castable

Zhelu metallurgical new materials Co.,Ltd. China Castable Manufacturer, steel fiber castable are characterized by high strength, good toughness, good thermal shock stability, resistance to spall, and long service life. Refractory castable are also called unshaped refractory castable. Its use is basically the same as concrete. First of all, after selecting the formula and raw materials, after mixing and processing uniformly, after curing and heating, it is compacted with a vibrating bar. , and due to the different use parts of the unshaped castable, the construction quality of the castable is also guaranteed according to the different site conditions.

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Application: Lining of aluminum melting furnace

Integral casting metallurgical furnace technology is a metallurgical furnace masonry method in which refractory castables are used to cast refractory materials for the furnace body at one time. The characteristics of this technology lie in its good structural integrity, no brick joints, and high overall strength, so the furnace body has a long service life. Try this technology on some furnace bodies in the domestic non-ferrous metallurgical industry. The working temperature of the circular furnace is as high as 1200℃, and the working temperature of the static furnace is as high as 1000℃. Circular furnace adopts furnace top uncovering and feeding, small furnace is manual slag removal with three furnace doors, and large furnace is mechanical slag removal operation with two furnace doors. The raw materials are aluminum ingots, scrap cast bars, scrap profiles and cast-rolled aluminum coils. Each static furnace also has two furnace doors for slagging and refining operations. In the past, the furnace body was made of refractory bricks, and some parts were easily damaged, thus affecting the life and production efficiency of the furnace body. In the construction of Zhengzhou website, the aluminum melting furnace is partially poured with refractory castables to improve the overall service life of the furnace body.

Product Data

(1) Metal non-wetting Castable

Model		BZL-90	BZL-85	BZL-80
Chemical Analysis(% )	AL203	≥90	≥85	≥80
Max working Temperature(C)		1700	1700	1600
Density (Kg/m3)	110℃X24h	≥3.0	≥2.9	≥2.85
Flexural strength (Mpa)	110℃X24h	≥12	≥10	≥10
Flexural strength (Mpa)	1100℃X3h	≥15	≥14	≥12
Compressive strength (Mpa)	110℃X24h	≥75	≥70	≥65
Compressive strength (Mpa)	1100℃X3h	≥90	≥85	≥80
Permanent linear change %)	1100℃X3h	±0.35	±0.35	±0.35
Aluminium resistance agent %)		3~5	3~5	3~5
Use places	Furnace bottom, lower furnace wall, slag scraping ramp, chute, aluminum ladle and degassing box, etc.

(2) Steel fibers Castable

Model		FHA-80	FHA-75	FHA-70
Chemical Analysis(% )	AL203	≥80	≥75	≥70
Max working Temperature(C)		1550	1500	1500
Density (Kg/m3)	110℃X24h	≥2.8	≥2.7	≥2.65
Flexural strength (Mpa)	110℃X24h	≥12	≥10	≥9
Flexural strength (Mpa)	1100℃X3h	≥14	≥12	≥10
Compressive strength (Mpa)	110℃X24h	≥75	≥70	≥70
Compressive strength (Mpa)	1100°X3h	≥85	≥75	≥70
Permanent linear change %)	1100℃X3h	士0.4	士0.4	士0.4
Use places	For furnace door and doorway,and other parts

(3) Low cement Castable

Model		LC-70	LC-65	LC-60
Chemical Analysis(% )	AL203	≥70	≥65	≥60
Max working Temperature(C)		1500	1400	1350
Density (Kg/m3)	110℃X24h	≥2.65	≥2.6	≥2.6
Flexural strength (Mpa)	110℃X24h	≥8	≥7	≥7
Flexural strength (Mpa)	1100℃X3h	≥10	≥9	≥7
Compressive strength (Mpa)	110℃X24h	≥65	≥65	≥60
Compressive strength (Mpa)	1100℃X3h	≥75	≥75	≥70
Permanent linear change %)	1100℃X3h	士0.45	士0.45	士0.45
Use places	Used for furnace top-wall and furnace roof and other parts

(4) Light Castable

Model		QZ-0.7	QZ-1.0	QZ-1.5
Density (Kg/m3)	110℃X24h	≥0.7	≥1.0	≥1.5
Compressive strength (Mpa)	110℃X24h	≥2	≥5	》16
Thermal conductivity	(700℃.W/m.k)	0.2	0.31	0.58
Use places	For other insulation parts such as furnace wall and furnace roof