Calcined Alumina Refractory Powder

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Specifications

1.heat resistant
2,material origin: alumina from Australia
3, produced as per general international law of Bayer
4,ISO, SGS.

Features:

1,heat-resistance and corrosion-resistance

2,Superior quality with competitive price

3, superior material from Australia

Product Description:

Taking the superior industrial alumina as raw material, Calcined Alumina is produced through the method of advanced high temperature down draught kiln with scientific calcine. These make sure it has the advantages as follows: less trash, high transfer rate, stable contraction, and great variety of goods. The shape is fine sand or powdery with white color, As its equal particle sizes and dispersing easily, it has a good sinterability. Calcined Alumina is the basic raw material for heat-resistance and corrosion-resistance products, such as high-alumina refractory, high level ceramic products, car used sparking plug, electronic ceramic parts, material for iron and steel oven, high temperature friction material and polishing grinding products, ect.

Calcined Alumina Parameters

Application	Model	Al2O3	Na2O	Fe2O3	SiO2	TiO2	LOI	True Density	a-Al2O3	D50	Particle Size	Specific Surface
Application	Unit	≥ %	≤%	≤%	≤%	≤%	≤%	g/m3	≥ %	um	um	m2/g
Dry pressing/CIP series	TCH-101	99.7	0.08	0.02	0.018	0.006	0.15	3.96	96	75	2--3	0.6-0.8
	TCH-102	99.6	0.1	0.02	0.018	0.006	0.15	3.95	95	75	2--3	0.6-0.8
	TCH-103	99.5	0.2	0.02	0.018	0.006	0.2	3.95	95	75	2--3	0.8-1.0
	TCH-105	99.4	0.3	0.02	0.018	0.006	0.2	3.93	93	75	2--3	0.8-1.0
Injection moulding	TCH-213	99.5	0.15	0.02	0.018	0.006	0.15	3.95	95	75	3--4	0.5-0.6
Injection moulding	TCH-211	99.7	0.1	0.02	0.018	0.006	0.1	3.96	96	75	3--5	0.5-0.6
Refractory series	TCH-31	99.4	0.3	0.02	0.018	0.006	0.15	3.92	90	75	2--3	0.1-0.8
	TCH-30	99.5	0.25	0.02	0.019	0.008	0.1	3.95	95	3	2--4	1.0-1.2
	TCH-33	99.4	0.3	0.02	0.018	0.006	0.15	3.95	95	43	2--3	0.9-1.0
	TCH-003	99.4	0.3	0.02	0.018	0.006	0.13	3.95	95	4	3--5	1.0-1.2
	TCH-35	99	0.3	0.02	0.02	0.006	0.2	3.9	90	43	3--5	0.9-1.0
Active A-Al2o3	TCH-5H	98.8	0.15	0.02	0.15			3.95	95	1
Active A-Al2o3	TCH-5L	98.6	0.15	0.02	0.15			3.93	93	0.8
Polishing series	TCH-61	97	0.1	0.1-0.2	0.18-2			3.95	95	40-60
	TCH-62	97	0.1	0.1-0.2	0.18-2			3.95	95	4--5
	TCH-63	98	0.1	0.05-0.6	0.18-0.2			3.97	95	4--5
Glazing series	TCH-7	99.6	0.2	0.02	0.018			3.95	95	55
	TCH-703	99.6	0.2	0.02	0.018			3.95	95	15
	TCH-713	99.6	0.2	0.02	0.018			3.95	95	4

$Calcined Alumina Refractory Powder$

Q:What crusher is used for raw material of broken refractory material? What is the rough crushing process? What are the materials? Thank you!: What is said above ia wrong. Crusher choosed by general refractory material factory is roller type, for example: Roll crusher,teeth-roller?cracker. Choose different crushing equipment according to your requirements. You can go "Zhengzhou Keda Machinery Co., Ltd." to inspect! ! ---Hope it is helpful to you!

Q:How to do environmental impact assessment for refractory Co., Ltd.: The preparation of a report or statement. During the compilation process, any problems should be actively communicated with the construction side. For example, dust collector selection, environmental protection investment, total emission approval. (especially the total emission, you must let the construction side and communicate with the environmental protection bureau to get the total amount, otherwise you write the EIA does not make any sense.) Generally speaking, the preparation of the report is longer, about forty days; and the preparation of the report table is shorter, about fifteen days.

Q:Refractory net: I think China's refractory industry does exist high yield and quality is not high.The main reason, I think, is the immaturity of the Chinese government and individuals. First of all, the government does not encourage basic research, resulting in the lack of innovation in the refractory industry; moreover, the company and enterprise take immediate interests as the most important and do not value long-term development; individual enterprises are eager for quick success and instant benefit. Users of domestic refractories, refractory products only to the price for the bid by standard of foreign products; regardless of price, quite a bit of the meaning of things.

Q:What is the role of the vermiculite fireproof material?: The vermiculite fireproof slate is widely applied to construction, shipbuilding, metallurgy, electric power, aerospace and other fields by foreign countries. Vermiculite slate can be applied to furniture, firewall, ceiling, and can be used in the fire fighting access, coated steel, coated pipeline, real flame fireplace in the lining board, wall partition. It is characterized by non combustible, non melting, resistance to high temperature; permanent thermal insulation; sound insulation, non-toxic, smoke-free, green environmental protection; resistance to impact, good dimensional stability and durability of the excellent anti fungal infestation. It can be sawed, nailed, planed, drilled, it can be easily installed and constructed.

Q:What are the characteristics of clay refractory materials?: Clay refractory has excellent performance in anti fatigue. The fatigue strength of the general metal is 50% ~ 40 of the tensile strength, and some composite materials can be as high as 70 ~ 80%. The fatigue fracture of the composite is from the matrix, which is gradually extended to the interface between the fiber and the matrix. Therefore, the composite material has omen before destruction, and it can be checked and remedied. Fiber composite material also has good performance in anti vibration fatigue. The fatigue life of The helicopter rotor made of composite material is longer that made of metal. I hope my answer will help you!

Q:How to choose thermal insulation materials for flood heating?: 1, Select the appropriate floor material suitable for radiant floor heating. The floor radiant heating system mainly transfer heat through the ground concrete and the ground material to the room. Therefore in the heating season the ground material will always be heated during heating season. Therefore, it is better to choose stone materials and compround floor plate insensitive to tenmperature change with good heat dissipation and functions. Currently, wood floor is not suitable for the ground radiant heating system. 2, choose the pipe with anti permeability performance. Plastic floor heating pipe itself has a certain air permeability, if oxygen penetrates in it is prone to oxygen erosion and system's mental device will be eroded, resulting in the risk of leakage. Therefore in order to ensure the reliable operation of the heating system, the selected pipe must have anti oxygen permeation performance, and meet the standard stipulated by the DIN4726 oxygen permeation quantity: and be less than 0.1mg\L.d at 40 C.

Q:what is the Specifications Grading for Fireproof rubber insulation materials ?: At present, China Building Materials has two grading criteria for combustion performance. "Combustion Performance Classification Method of Building Materials" and "Combustion Performance Classification Method of Building Materials and Products" (GB8624-2006). Among them, one of the major changes of GB8624-2006 and GB8624-1997 is to divide the material combustion performance grading from homogenous material)Class A (composite sandwich material), B1, B2 and B3 level five minutes as A1, A2, B, C, D, E, F seven levels.

Q:Is fireclay corrosive?: No. All of the refractory materials have stable chemical properties and their usability can be guaranteed under high temperatures.

Q:What materials is silicious thermal insulation board made of?: Refractories that contain more than 93% of the monox are acidic refractory materials which include ordinary silica brick, high-density and high-purity silica brick, silica brick that contains chromium, fused quartz products, unburned brick and siliceous ramming materials. It has good softening temperature under a fixed load and can resist corrosion of acid slag, but will have chemical reaction with alkaline slag. Silicious refractory of industrial value mainly is crystalline quartz, such as α and β quartz, tridymite and cristobalite.

Q:What are the refractories for converter?: Permanent layer (sintering) magnesia brick, the working lining gunning material for the working layer and the permanent layer gap, using magnesia ramming materials, MgO-C brick brick supply,

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