$Raw Materials for Refractory:High Alumina Low Cement Castable Ladle Tundish Refractory Cement System 1$
$Raw Materials for Refractory:High Alumina Low Cement Castable Ladle Tundish Refractory Cement System 2$

$Raw Materials for Refractory:High Alumina Low Cement Castable Ladle Tundish Refractory Cement$

$Raw Materials for Refractory:High Alumina Low Cement Castable Ladle Tundish Refractory Cement System 1$

$Raw Materials for Refractory:High Alumina Low Cement Castable Ladle Tundish Refractory Cement System 2$

Raw Materials for Refractory:High Alumina Low Cement Castable Ladle Tundish Refractory Cement

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 2000 m.t./month

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Category

Calcium aluminate cement is sorted into two kinds by chemical composition: common calcium aluminate cement (Al2O353%~72%,CaO21%~35%) and pure calcium aluminate cement(Al2O372%~82%,CaO19%~23%). And common calcium aluminate cement is divided into low iron type(Fe2O3<2.0%) and high iron type(Fe2O37%~16%). The low iron type calcium aluminate cement which has a Al2O3 content of 53%~56% and CaO of 33%~35% is called bauxite cement; the one which has a Al2O3 content of 59%~61% and CaO of 27%~31% is called Aluminium-60 cement; the one which has a Al2O3 content of 65%~70% and CaO of 21%~24% is called low calcium aluminate cement, another kind is fast hardening super early strength calcium aluminate cement. And pure calcium aluminate cement is divided into conventional type (Al2O3 content is 72%~78%)and super high alumina type(Al2O3 content is 78%~85%).

Specifications:

Specification of three grads of CA50
Mark		A600	A700	A900
Composition (%)	SiO2	≤7.8	≤7.5	≤5.5
	Al2O3	≥50.0	≥51.0	≥53.5
	Fe2O3	≤2.5	≤2.5	≤2.5
	Fe2O3	≤0.4	≤0.4	≤0.4
SSB (m2/kg)		≥300	≥320	≥350
Initial Setting Time(min)		≥45	≥60	≥90
Final Setting Time (h)		≤6	≤6	≤6
Breaking Strength(MPa)	1d	≥6.0	≥6.5	≥8.0
Breaking Strength(MPa)	3d	≥7.0	≥7.5	≥10.0
Compressive Strength(MPa)	1d	≥45	≥55	≥72
Compressive Strength(MPa)	3d	≥55	≥65	≥82

Item Briand		CA70	CA80
Chemical Composition %	SiO2	≤1.0	≤0.5
	AL2O3	≥68.0	≥77.0
	Fe2O3	≤0.7	≤0.5
	R2O	≤0.4	≤0.4
	S	≤0.1	≤0.1
	Cl	≤0.1	≤0.1
325M Residue on Sieve (%)		≤5	≤5
Surface Area (m2/kg)		≥400	≥450
Initial Setting Time (min)		≥45	≥45
Final Setting Time (h)		≤6	≤6
Breaking Strength (MPa)	6h	--	--
	1d	≥5.5	≥5.0
	3d	≥6.5	≥6.0
Compressive Strength (MPa)	6h	--	--
	1d	≥40	≥30
	3d	≥50	≥40

Application

Calcium aluminate cement is mainly used as binder of refractory castable and gunning mix. Common calcium aluminate cement is applicable to low-grage and medium-grade refractory castable, such as firecaly castable and high alumina castable etc; Pure calcium aluminate cement is applicable to high-grade refractory castable, such as corundom castable, mullite castable, chrome containing corundum castable and spinel castable etc; The calcium aluminate cement addition quantity of common refractory castable is 10%~20%, low cement castable is 5%~10%, super low cement castable is less than 5%. Addictives which can improve workability may be added to castables bond by calcium aluminate cement so as to meet the requirements of construction, such as setting accelerator, setting retarder, water reducer (dispersant), plasticizer etc.

$Ladle tundish castable High alumina Low cement refractory cement$

Q: What is the upper temperature limit for refractory materials?: Different materials are different. In the professional field, there is a triangulation cone softening point experiment as a reference for using the upper temperature limit.

Q: what's the fireproof levels of fireproof and thermal inuslation matertial?: 1, organic materials: B level material is flammable, B1 level material is flame retardant. 2, inorganic materials: Grade A flame-resistant materials are divided into three classes and two kinds of materials.

Q: What are the specifications of fire resistant bag?: Fire resistant bag is featured by wear resistance, resistance to heat, shock, acid and alkali, somke, fire, bacteria, mould and static electricity. Fire resistant bag is generally used for table top, desktop, wall face, cabinet, office furniture, wall-hung cupboard, etc. The common specifications include: 2135mm×915mm, 2440mm×915mm, 2440mm×1220mm, thickness 0.6-1.2mm. I hope it can help you.

Q: What are included in fireproofing materials?: Incombustible?material of construction fire-proof material Grade A: Cement, stone, steel, coat, glass, aluminium alloy, ceramic tile, etc.; nonflammable material Grade B1: Fireproof?panel, rock wool.

Q: Which kind of furnace hearth refractory is better?: Coal is acidic medium, so the matched material should be acidic refractories oriented, like silica?bricks. For example, the coking coke oven and carbon furnace made of carbon are in reducing atmosphere, so they use silica bricks which have low price and good high-temperature indicators. If the part has special requirements, you can then consider other refractory on request.

Q: What is the the best matching ratio of refractory cement?: The best matching ratio of refractory cement is 30%. Refractory cement is also known as aluminate cement. Aluminate cement takes bauxite and limestone as raw materials, alumina content of about 50% as the clinker. And it is a hydraulic cementing material made by grinding. Refractory cement is also known as aluminate cement. Aluminate cement is often yellow or brown or gray. The main mineral of aluminate cement is mono calcium aluminate (CaO · Al2O3, abbreviated CA) and other aluminates, and a small amount of dicalcium silicate (2CaO · SiO2), etc. It is a special cement. I hope my answer will be helpful to you.

Q: How to make the service life of refractory materials longer?: Take acid resistant refractory materials as example: the atmosphere should be acidic atmosphere, if used in an environment whose temperature is 1900℃, it would exacerbate the loss of refractory materials, so don’t use overloaded. Second, select the appropriate refractory materials according to the environment. For example, if its operating temperature is 1800℃, generally speaking, the normal use of it according to the instruction of refractory materials would be fine.

Q: What's the fire resistance test method of doors and roller shutters?: Fire resistance test method of doors and roller shutters: This standard specifies the fire resistance test method for roller shutter doors under standard fire conditions. The method is used to test the fire resistance of the ventilating duct when bearing the external fire (A duct) and internal fire (B duct). Fire resistance test of vertical ducts may be conducted referring to this standard. 1.Test specimen1.1 The test specimen is obtained by cutting from any part of the qualified metal tube unless otherwise relevant standard or mutual agreement specifies the cutting position of the metal tube. 1.2 Length of the specimen: L≈2.5D+50mm (D: outer diameter of the metal tube). The cut surface of the specimen must be perpendicular to the axis of the metal , and the seamed edge of the cut should be round off. Test method GB243-82 of metal tube necking 2. Test procedures 2.1 In the test, punch or press the metal tube into the tapered conical seat (see Figure) with a hammer or press machine, and make it uniformly diminished to the regulated shrinkage X which is calculated according to the following formula: Test method GB243-822 for metallic pipe necking: The inner wall of the seat cover used in the test should be polished, and has certain hardness and is coated with lubricating oil. Its conicity is 1:10, 1:5 or others in accordance with relevant standard provisions. If there is no provision, then adopt the conicity of 1:10. This standard is not suitable for: a) The pipeline whose fire resistance depends on the fire resistance of the ceiling; b) The pipeline with access door, unless otherwise the access door is included into the pipeline and tested together; c) The pipeline with two or three sides; d) Fume exhaust pipes;

Q: Does anyone knows which company produces the better refractory materials?: 1, Xinjiang Seekon new material limited liability company: Xishan Street No. 382,Saybagh District 2, Refractory Material Co., Ltd. In Xuyan, Benxi: Near the Sihu Road, Benxi City 3,Benxi Beitai new refractory material factory sales office address: Benxi city Sihu District Liu Toro No. 16

Q: Which fireproofing materials factory is the best in Xiangyang?: Xiangyang Shenglaide Door Technology Co., Ltd. Location: Taibai Road, Fancheng District, Xiangfan, Hubei Province Xiangyang Ai'ruite Door Technology Co., Ltd. Location: Scientific and Technical Pioneering Park, Xiangcheng District, Xiangfan, Hubei Province Xiangyang Innovation and Ideal Manufacturing Co., Ltd. Location: Xiangyang Xiangfan state Jianshe Road, Xiangzhou District, Xiangyang, Hubei Province

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