$Raw Materials for High Alumina Refractory Cement$

$Raw Materials for High Alumina Refractory Cement System 1$

Raw Materials for High Alumina Refractory Cement

Inquire Now

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

Refractory Cement
high alumia refractory
1.Quick hardening and early strengthening
2.Good quality with competitive price

High Alumina Refractory Cement

Product Description

Applications

1.Used as building refractory cement.

2.Furnaces lining material of metallurgy industry, heat treatment furnace.

3.Furnace lining material of incineration of garbage, recirculating fluidized bed furnace.

4.Furnaces lining material of chemical industry and construction industry.

Typical Features:

1.Low thermal conductivity, excellent thermal insulation, low liner shrinkage.

2.Good integrity with furnace lining, long service life, easy operation, could be shaped freely.

3.Allow direct contact of fire, suitable for various atmosphere.

4.High strength and good thermal shock resistance.

Specifications:

Item		Unit	75% Alumina Index	40% Alumina Index
Al₂O₃		%	≥75	≥40
CaO		%	≥2.5
Bulk density	110°C×24h	g/cm³	≥2.65	≥2.3
Bulk density	1100°C×3h	g/cm³	≥2.65	≥2.3
Crushing strength	110°C×24h	Mpa	≥45	≥40
Crushing strength	1500°C×3h	Mpa	≥70	≥60
Rupture strength	110°C×24h	Mpa	≥6	≥6
Rupture strength	1500°C×3h	Mpa	≥10	≥8
Linear change rate at 1100°C		%	-0.1~-0.5	±0.5
Highest Application Temperature		°C	1500	1350

$High Alumina Refractory Cement$

Q: A chemical problem with refractory materials: In chemistry, there is never absolute

Q: How can refractory material of the electric furnace be used for longer.: Minimize mechanical shock, Electrical furnace commonly referred to must be electrical arc furance. The wall of electric arc furnace should be constrcuted with magnesite carbon brick. Its hearth permanent layer should be constrcuted with mansornary magnesia brick. High alumina brick is usually used to aviod furnace cover suddenly get hot and cold. But its service life is lower. At present integral casting furnace cover is made of alumina magnesia. Terminal will be created even without the use of refractory material. Consumption is much faster if using refractories material or whole knottiing mainly.

Q: How long is the fire endurance of Grade A fire resisting shutter: Fire door can be divided into Grade A, Grade B and Grade C fire door according to its fire endurance. Their fire endurance is not less than 1.20h, 0.90h and 0.60h respectively. Use fire resisting shutter as fire?compartment separation in places where it is difficult to set firewall. When fire resisting shutter whose unexposed surface temperature rise is used as judging condition of fire endurance is used, its fire endurance should not be lower than 3h. When fire resisting shutter whose unexposed surface temperature rise is used as judging condition of fire endurance is not used, individual protection of ?closed automatic water spray system shoule be set at two sides of the shutters and duration of water spray system should not be less than 3.0h. When the fire resisting shutter is used for fire?compartment, fire endurance is 3h. When the fire resisting shutter is set at the opening part of firewall, fire endurance is 1.2h.

Q: What is the use of refractory?: Some is insulated for personnel safety, some is to save heat loss and conserve energy, and some is used as lining of kilns. Because of its light weight, I recommand it to you and I am engeged in ceramic fiber, just an advertisement.

Q: Which are fire proofing thermal insulation materials?: aluminum silicate fiber, ceramic fiber, etc,

Q: What are the insulation fireproofing materials?: Asbestos is the most common. Asbestos containing zirconium and made of the mixture of zirconium aluminum and silicon through wire drawing is better. Of course, some are made directly from natural things which can withstand 1400 degrees for over 30 seconds while the internal temperature had no significant change, and withstand 1400 degrees for over five minutes while inside temperature increase does not exceed 5 degrees.

Q: Would you like to know if there are any enterprises in Mianyang that need fire-resistant materials?: Smelting and casting needs, need more long double

Q: What are the technical requirements for refractories?: To put it simply, physical indicators are pores, volume density, pressure resistance, slag resistance, thermal shock resistance, foot expansion coefficient, thermal conductivity, oxidation resistance and so on. If it is castable, the indicators are mobility, water rate, setting time, and anti bending strength. If it is coating mix, the bonding strength should be checked. Chemical indicators are loss of ignition and the content of aluminum, magnesium, silicon, calcium, chromium, titanium and carbon.

Q: Detailed description of magnesia dolomite refractory material?: In the cement kiln firing zone, the f-CaO in the dolomite material is easily combined with the C2S in the clinker to form C3S, so the kiln cover can be easily hung, and the kiln crust and the refractory brick are firmly combined and easy to maintain.

Q: What is the difference between the fire?rating and the fire resistant level of the fire-fighting equipment?: Fire rating and fire-fighting rating are the misnomer to the building fire resistant level. The building fire risk is measured by fire resistant level. The article 3.2.1 and 5.1.7 of "Architectural design code for fire protection" have made provision respectively on the fire resistant level of plant (the storeroom) and civil construction. Article 3.0.2 of "Code for fire protection design of tall buildings" has made provisions on the fire resistant level of tall buildings. As for the warehouse building "category malonate", it refers to one of the fire risk of goods storage, which is divided into A, B, C, D, E, and each category is refined depending on the nature of different substances. "Malonate class" specified in article 3.1.3 of "building design for fire protection" refers to the flammable solid.

Send your message to us

*Email

*TEL

*Quantity

*Unit