$High Temperature Refractory Cylindrical Alumina Smelting Crucible System 1$

$High Temperature Refractory Cylindrical Alumina Smelting Crucible$

$High Temperature Refractory Cylindrical Alumina Smelting Crucible System 1$

High Temperature Refractory Cylindrical Alumina Smelting Crucible

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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Specifications

alumina crucible:
1.high purity Al2O3 >99%.
2.Superior refractoriness.
3.High mechanical strength.
4.Long life time

Product Description

alumina crucible:

1.high purity Al2O3 >99%.

2.Superior refractoriness.

3.High mechanical strength.

4.Long life time.

Feature of the alumina ceramic crucible:

1. High chemical etching resistance.

2. High temperature up to 1800°C

3. Resistant to sudden cold and hot, un-explosive.

4. High density of slip casting.

5. Various kinds of shape.

99.5% Alumina Ceramic crucibleIndustrial alumina ceramic crucible is used for testing laboratory and a variety of industrial analysis. Alumina ceramic crucible

include: arc alumina crucible, square alumina crucible, rectangle alumina ceramic crucible, column ceramic crucible and a

variety of shaped alumina ceramic crucible.

Physical Character of the alumina ceramic crucible:

Performance
Item		Unit	99 Al₂O₃
Physical Characteristics	Heat resistance	⁰C	1800
	Bulk density	g/cm³	3.9
	Water absorption	%	0
	Flexural strength	Mpa	360
Mechanical Characteristics	Hardness vickers	Gpa	15.6
	Elastic modulus	Gpa	370
	Poisson’s ratio	-	0.23
Thermal Characteristics	Linear expansion coefficient	(20⁰C-500⁰C) 10^-6/⁰C	8
	Thermal conductivity	w/(m.k)	32
	Specific Heat	10^-3J/(kgK)	0.9
Electrical Characteristics	Dielectric constant (1MHZ)	-	9.9
	Dielectric loss angle	*10^-4	1
	Dielectric strength	*10⁶V/m	15

Packaging & Shipping

Packaging of alumina crucible: PE bag inside outer carton

(930*630*230mm),finally make the wooden pallet(950*950mm 950*1000mm) or according to your requirement

Shipping of alumina crucible : delivery within 15 days after confirm the order.

FACTORY:

$High Temperature Refractory Cylindrical Alumina Smelting Crucible$

Q:What are fire?ratings of wall thermal insulation material?: 1.thermal insulation material with grade A combustion performance: YT inorganic active insulation material for wall thermal,rock wool, glass wool, foam glass, foamed ceramics, foam cement, hole-closed perlite, etc. 2.thermal insulation material with grade B combustion performance: Extruded polystyrene board(XPS)after special treatment/polyurethane(PU) after special treatment, phenolic aldehyde,gelatine powder polyphenyl granule, etc. 3.thermal insulation material with grade B2 combustion performance: Molding polystyrene board(EPS), extruded polystyrene board(XPS), polyurethane(PU), polyethylene(PE), etc.

Q:What are the applications of refractory busway?: Is an ieal power supply equipment for modern large and medium-sized enterprises, high buildings, the introduced projects, experimental base and other places.

Q:Pals who know something about fire resistant material please tell me how many types of refractory material there are: Refractory materials used in special applications include high temperature oxcide, such as alumina, lanthanum oxide, beryllium oxide, calcium oxide, zirconia and other, refractory compounds, such as carbides, nitrides, borides, silicides and sulfides; high temperature composite materials, mainly contain metal ceramic, high temperature inorganic coatings and fiber reinforced ceramics.

Q:What kind of materials can be tested their electrical resistivity in the current refractory industry?: Graphite, Magnesium Oxide, and alumina are all feasible.

Q:What is the particle size of boron carbide for refractories?: 0.3-0.5% is OK, but also with other additives, such as aluminum powder, silicon powder, magnesium alloy powder and so on. To achieve good results.

Q:What are the disadvantages of the refractory industry?: The rapid development of continuous casting technology allows Hua Heng refractories to be improved in variety and quality. The development of refractory for continuous casting has a significant impact on the production of continuous casting and quality of continuous casting billet. Constructing and putting Baosteel into action has greatly pushed the improvement of the refractory technology. Continuous casting refractory is an important part of the continuous casting machine. In addition to the general characteristics of refractories, it is also required functions that can purify molten steel, improve the quality of steel, stabilize temperature and composition of the molten steel, control and regulate the molten steel flow. Therefore, it is known as functional refractories. Continuous casting Refractories include: (1) ladle refractory - ladle lining, permanent lining and ventilation components; (2) tundish refractories - permanent lining, coating, insulating plates, clad etc; (3 ) functional refractories - long nozzle for non-oxidizing casting, submerged nozzle, monolithic stopper, sliding gate; (4) ceramic purifier for purifying molten , slag dam, alkaline paint and horizontal separating ring and gate board for continuous casting.

Q:who knows the fire endurance of fireproof coating?: this is not specfied , depending on design requirements. The products we made have fire endurance from 1to 4hours . We have not done any higher.how is the fireproof coating in improving fire resistance of building components? finishing fireproof coating; wood fireproof coating; fire-resistant coating for steel structure, fire-resistant coating for concrete structures, tunnel fire retardant paint, fire retardant paint for the cable. Fire retardant coating is composed of the base materials (that is film forming substance), pigments, ordinary coating additives, fire retardant agent and dispersion medium. In addition to fire retardant agent, other components functions the same as in ordinary coating, but its performance and thickness are specifically required.

Q:What are Grade-A waterproof inorganic thermal insulation materials?: There is a market confusion in Grade-A waterproof inorganic thermal insulation materials. The products mainly include Grade-A monomer material like roc wool and ultra-thin insulation board and Grade-A composite material. Many Grade-B materials wraaped with calcium silicate board or foam cement belongs to Grade-A material, such as phenolic aldehyde composite. Some foamed materials with filling also belongs to Grade-A material. However, there are few products with Grade-A qualification. Many manufacturers are working on the margins of the records with Grade-A fireproofing performance examining report. But this situation will not be too long.

Q:How to use fireclay?: Mix refractory cement (ie aluminate cement CA50) with some refractory aggregate (bauxite, slag from flint clay) and powder (ie, crushed aggregate). Add some water to the mixture and stir, and it can be used. The clinker can be refractory powder.

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