Raw Materials for Light Weight Insulation Refractory Castable

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Specifications

1. Easy construction.
2. Can according to customers' requirements.
3. Used for various high-temperature industrial kilns.

Light weight heat insulation refractory castable,Insulating castable,Insulation castable

Insulation castable is one of the unshaped refractory materials. It is made of refractory aggregate, refractory powder, binders and other additives. It is loose, No fixed shape,Has high liquidity, Casting and vibration molding,Can use directly or use after add appropriate water or other liquid. It is one of the new type refractory material of don't need calcination.

Construction way:casting+vibration moulding

Features:

1. Low bulk density.
2. Low thermal conductivity.
3. High strength.
4. Good thermal and insulation properties.

Physical and chemical index:

Item		Light-weight Hi-strength refractory castable
Item		ZYQ-0.6	ZYQ-0.8	ZYQ-1.0	ZYQ-1.1	ZYQ-1.3	ZYQ-1.5	ZYQ-1.8
Volume Density (g/cm3) ≤		0.6	0.8	1.0	1.1	1.3	1.5	1.8
Compressive Strength, (MPa)	110°C×16h ≥	1.5	2.0	4.0	5.5	7.5	15	15
Compressive Strength, (MPa)	1000°C×3h ≥	-	2.0	5.5	6.5	10	20	40
Heat Conductivity Coefficient (W/m·K)	700°C ≤	0.15	0.25	0.35	0.40	0.45	0.60	0.65
Heat Conductivity Coefficient (W/m·K)	1000°C ≤	0.20	0.25	0.40	0.45	0.50	0.70	0.75
Linear Variation (%);1000°C×3h ≤		-0.25	-1.0	-0.5	-0.5	-0.5	-0.5	-0.5
Safe Use Temperature (°C)		800	1000	1100	1200	1300	1350	1350

Application:

1. Furnaces of metallurgy industry, heat treatment furnace.

2. Furnace of incineration of garbage, recirculating fluidized bed furnace.

3. Furnaces of chemical industry and construction industry.

FACTORY:

$Light Weight Insulation Refractory Castable$

Q: Can anyone tell me what is A-leve fireproof material?: What you say is probably palstic! B-level means the fireproof rating is at B1-level because palstic material doesn't belong to fireproof materials. It only is fire?retardant. When wholesaling all kinds of insulation materials and construction, it need tos look at the names. B1-level refers to the fire endurance rating of the fireproof material, which is determined according to the fire resistance of the material. In addition, different parts of the material have different fire endurance ratings! You can download a "Specifications of Fireproof Design for Buildings" for further information!

Q: What's the difference between refractory metal raceway and fireproof raceway?: Fire protection slot won't cause fire accident under the temperature of no more than 200℃. While the refractory cable tray is made with refractory materials and can withstand high temperature of 800℃ with no fire accident happening. The test standard depends on the maximum temperature it can endure. Hope it's helpful for you!

Q: What's the definition of fire endurance of the fire-resistant coating for steel structure?: 1. Fire endurance. Conduct fire resistance test of any building component according to the standard time-temperature curve, and the time when it is subjected to the fire to the time when it loses support capability or fire insulation function or its integrality is destroyed is referred to fire endurance. 2. Steel has relatively low fire endurance which is usually 0.25h only, namely 15 minutes; 3. Of steel structure buildings, steel can be used as beams, pillars, etc. but its fire endurance is not enough (usually these components have higher requirement on fire endurance, and take pillar as an example, it is usually demanded that the fire endurance should be 2-3h), and under this condition, it needs to brush fire retardant coating so as to raise the fire endurance. As to the specific quantity or types of the fire retardant coating, it is decided upon the actual conditions. In short, the building material needs to meet the required fire endurance of the buildings.

Q: Who knows that among refractory materials, insulation boards from which refractory material industry is superior in quality?: When casting ingot, after high temperature molten steel is poured into ingot mold, molten steel keeps shrinking during cooling, for example, killed steel is shrinking 3% --5%. because of fast heat dissipation of ingot head , some shrinkage holes appear at the head of ingot. Therefore, you should cut shrinkage holes which account for more than 15% of the ingot quality in the head while cutting steel ingot cogging. If effective measures were taken to insulate the head of ingot from heat, then the coagulation time of ingot head would lag behind in the body of the ingot solidification, which will greatly shrinkage holes, improve ingot yield so as to reduce energy consumption of steelmaking. Adiabatic plate can achieve this purpose. China Heng insulation board has the advantages of uplifting adiabaticity and small heat capacity, so that it greatly reduced heat loss of molten steel, And the tundish can be directly put into use without preheating, thereby saving a large amount of preheating fuel. So in the current process of continuous casting, the heat insulation board is the main material of tundish lining.

Q: Which one is the best refractory material?: o make it simple, you can kindle it, and observe the burning time. If there is a professional need to be accurate, then you can send it to the professional testing company. As far as I know, the Kebiao Company over the victory bridge, Qingdao can offer professional test. I hope my answer can help you, thank you, hope to be adopted.

Q: What are the new types of refractories? What are the characteristics? Their applications and developments?: AZS refractories are often used brick, corundum brick, magnesia chrome brick, silicon carbide, silicon nitride bonded silicon carbide, nitrides, silicides, sulfide, boride, carbide and other non oxide refractory materials; calcium oxide, chromium oxide, alumina, Magnesium Oxide, beryllium and other refractory materials.Often used insulation refractories are diatomite products, asbestos products, insulation panels and so on.Unshaped refractory materials commonly used are fettling, refractory ramming material, refractory castable, refractory plastic material, refractory clay, refractory gunning, refractory cast material, fireproof coating, lightweight castable, mud etc..

Q: For refractory, why is it necessary to store the first mixing materials for some time under proper moisture and temperature?: It is mainly to remove gas form chemical reactions in the pug, give full play to plasticity and binding properties of combined, and store unburned?brick whose cememting agent is phosphoric?acid or aluminium?phosphate for some time under proper moisture and temperature. For example, to avoid the formed bricks in the initial stage of drying and firing form cracking due to hydration of calcium oxide. Mixing materials is to store the first mixing materials for some time under proper moisture and temperature in order to improve the evenness and moldability of pud, such as making the distribution of combined clay and water more even. The length of storing chiefly depends on the process requirements and the characteristics of blanks. For the producing pug of high temperature kiln furnitures, the storing time is longer. The function of storing mxing materials varies with different natures of blanks. For honeycomb ceramics, it is to fully digest calcium oxide in blanks. For storing magnesia brick blanks containing much calcium oxide, it should be stored for some time in proper humidity and temperature.