Amorphous Castable Refractory

Castable refractories can be mixed with water, formed, and solidified like cement, but the process of drying the solid before full-temperature use is critical. When working with castable refractory, be mindful of the hazard of heating trapped water too rapidly and causing a steam explosion. If using a commercial mixture, follow the manufacturer’s directions closely. If using a DIY formula, use a gradual “bake out” process in which the cast material is brought up to final operating temperature very gradually, in a series of slow, prolonged stages, with full cooling phases in between.

Material		High alumina		Vltra-low cement high alumina
Type		AJ-1	AJ-2	CJ	CJ-1
Chemical composition (%)	Al2O3	55	60	70	75
	SiO2	35	30	20	15
	SiC	－	－	5	8
	CaO	3.5	2.5	0.8	0.6
Cold crushing strength (MPa)	110℃×24h After drying at	15	18	12	10
	1250℃×3h After firing at	25	28	20	22
Cold bending strength (MPa)	110℃×24h After drying at	6	8	4	5
	1250℃×3h After firing at	10	10	10	12
Linear changing after burnt (%)	1250℃×3h After firing at	±1.6	±1.4	±1.2	±0.8
Bulk density (g/cm3)	1250℃×3h After firing at	2.25	2.3	2.85	2.9
Amount for construction (kg/m3)		2400	2450	3000	3100
Additional water (%)		8—9	7.5—8.5	5—7	4.5—6.5
Method of construction Method of bonded		Jolt moulding  Water
Characteristic		High strength ,Corrosion resistance , Water set  Volume stability Thermal shock resistance , Flame blowing resistance ,Spalling resistance    Fiberfrax added .May be used easily by casting method with low  consumption perton of pigiron Complex and narrow kiln′s       body and components with dense anchor firm wares .

Taurus Refractory ramming mass Factory mainly engaged in professional manufacturer of development, production and sales of the refractory mixture such as melting copper, aluminum and zinc furnace lining. And supply castable refractory for copper smelting, ramming mass for molten copper,fire clay,refractory mortar, refractory cement ,refractory mixture, refractory concrete and silica sand for copper smelting.
Website: http://www.jnrefractory.com  
Contact: Mr. Niu
Tel: +86-371-64372566
Fax: +86-371-64372588
Mobile Phone: +86-15137151612
Email: info@jnrefractory.com
          gyjinniu@163.com

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