Raw Materials for Refractory:High Alumina Cement, Aluminate Cement, Refractory Cement
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 20000 m.t./month
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Quick Details
| Place of Origin: | Shandong, China (Mainland) | Shape: | Powder | Material: | fire clay,high alumina,corundum |
| Al2O3 Content (%): | 50%-80% | Refractoriness (Degree): | 1770°< Refractoriness< 2000° | Brand Name: | cnbm |
Packaging & Delivery
| Packaging Details: | Plastic woven bag 25kg |
Refractory cement,Aluminate Cement ,High alumina cement
Features:
1.quick hardening and early strengthening
2. used in urgent repairing
3. used in the project under construction in winter
4. sound anti-corrasion from sulfate effect
5. anti-freezing
6. high purity
Physical and chemical indicators:
CA-50 Cement | Physical property | Chemical component | ||||||||||
Rupture strength MPa | Compressive strengthMPa | Setting time Min | Al2O3 | SiO2 | Fe2O3
| R2O (Na2O+0.658K2O) | ||||||
1day | 3days | 28days | 1day | 3days | 28days | Initial time | Final time | |||||
5.5 | 6.5 | / | 40 | 50 | / | ≥30 | ≤360 | 50-60 | ≤8.0 | ≤2.5 | ≤0.4 | |
CA-60 Cement | Physical property | Chemical component | ||||||||||
Rupture strength MPa | Compressive strengthMPa | Setting time Min | Al2O3 | SiO2 | Fe2O3
| R2O (Na2O+0.658K2O) | ||||||
1day | 3days | 28days | 1day | 3days | 28days | Initial time | Final time | |||||
2.5 | 5.0 | 10.0 | 20 | 45 | 80 | ≥60 | ≤1080 | 60-68 | ≤5.0 | ≤2.0 | ≤0.4 | |
CA-70 Cement | Physical property | Chemical component | ||||||||||
Rupture strength MPa | Compressive strength MPa | Setting time Min | Al2O3 | SiO2 |
Fe2O3
| R2O (Na2O+0.658K2O) | ||||||
1day | 3days | 28days | 1day | 3days | 28days | Initial time | Final time | |||||
5.0 | 6.0 | / | 30 | 40 | / | ≥30 | ≤360 | 68-77 | ≤1.0 | ≤0.7 | ≤0.4 | |
Specific area cm2/kg | ≥4000 | |||||||||||
CA-80 Cement | Physical property | Chemical component | ||||||||||
Rupture strength MPa | Compressive strength MPa | Setting time Min | Al2O3 | SiO2 |
Fe2O3
| R2O (Na2O+0.658K2O) | ||||||
1day | 3days | 28days | 1day | 3days | 28days | Initial time | Final time | |||||
4.0 | 5.0 | / | 25 | 30 | / | ≥30 | ≤360 | ≥77 | ≤0.5 | ≤0.5 | ≤0.4 | |
- Q: what is the grading standards of external wall thermal insulation materials?
- external wall thermal insulation materials are divided according to Fire rating: 1, the combustion performance of insulation materials rates A. inorganic fiber spray coating, glass wool, foam glass, foamed ceramic , rock wool, foam cement, obturator perlite 2, the combustion performance of insulation materials rates B1: Extruded polystyrene board (XPS)after special treatment / polyurethane (PU) after special treatment, phenolic aldehyde, gelatine powder polyphenyl granule.3, combustion performance of insulation material rates B2. Molded polystyrene board (EPS), extruded polystyrene board (XPS), polyurethane (PU), polyethylene (PE), etc.
- Q: Can someone professionally introduce the classifications of refractories?
- Whatare the classifications of the refractory index levels? There are three categories of refractory index levels. Anyone familiar with the industry may already know that if you're new to the refractory and don't know much about it, the following information may be helpful to you. Refractory index level can be devided into three general categories of special refractories, advanced refractories and ordinary refractories. The first category, special refractories. Whose refractoriness is higher than 2000 ℃, spinel brick, pure oxide products, high purity directly bonded magnesia-chrome brick, cast products, non-oxide products belong to this grade. The second category, advanced refractories. Whose refractoriness is from 1770 to 2000 Celsius degrees, mullite bricks, high alumina brick, magnesia-alumina brick, ordinary magnesia products, olivine bricks, ordinary magnesia-chrome brick belong to this grade. The third category, ordinary refractories. Whose refractoriness is between 1580 and 1770 Celsius degrees, equivalent to Al2O315% ~ 45% refractory products in the binary system of SiO2-Al2O3. Kaolinite is the main mineral of raw materials.
- Q: How to count the construction costs of refractories?
- In winter, the temperature of the the fire-resistant masonry, fire-resistant plastic, sodium silicate, phosphoric?acid castable should be maintained above 5 ℃. Usually greenhouses in which heating facilities are installed to maintain the appropriate temperaturere for the construction environment should be erected in refractory masonry. The temperature around the construction site of the industrial furnace and refractory masonry shall not be lower than 5 ℃.
- Q: What is the use of refractory?
- It is equivalent to a protective layer. It can be used to protect structural materials from being direcctly attecked by high tempereture or internal gases. General structural materials are steel, so the main function is resistant to fire and high temperature. In literal meaning, refractory is a fireproof material. Steel is easily deformed and wore. Structural materials can not directly touched with solid and liquid. Refractory materials are generally used as a protective lining of structural material, so it is necessary to be protected.
- Q: How many refractory materials does the annual output of 1 million tons of coke oven require?
- Refractory materials are expensive, and any refractory accident will lead to a considerable waste of production time and equipment, and sometimes even the product itself. The type of refractory material will also affect energy consumption and product quality. Therefore, it is very important to select the refractory material which is most suitable for various applications. While the economic benefits have great influence, refractory material most suitable for some applications need not be used for materials, but can achieve a balance between material installation cost and performance, this balance is not fixed, but with the introduction of new technology or new refractory materials and changing. History has proved that unremittingly seek metallurgical process more reasonable and development, greatly promoted the development of refractories, quickly resolve these problems has become the modern refractory steel technology development is an important element. The content of this article is to discuss a number of factors including these issues and to provide information on how to solve them.
- Q: I would like to ask a friend that how much is the fire endurance of level A fireproofing glass?
- Fireproofing doors can be divided into Class A, Class B and Class C by the fire endurance, the fire endurance is seperately not less than 1.20h, 0.90h and 0.60h. Fireproofing glass is a kind of special glass which can retain its integrity and insulation in the prescribed fire test, it can be divided into three categories according to fire resistance rating: class A is the fireproofing glass with refractory integrity and refractory thermal insulation. Such glass has the properties of transmittance, fireproofing (smoke insulation, fire insulation, heat radiation shielding), sound insulation and shock resistance, which is suitable for architectural steel and wood fire doors, windows, partition walls, daylighting?roof, ceiling?screen, perspective floor and other building components required both transparent and fireproofing. Class B is a fireproofing glass with refractory integrity and thermal radiation intensity. Such fireproofing glass is mostly composite fireproofing glass with transmittance, fireproofing and smoke insulation. Class C is a fireproofing glass with refractory integrity. Such glass has the features of transmittance, fireproofing, smoke insulation and high strength. it can used in partition wall, fire window and outdoor curtain wall without the thermal insulation requirements. fireproofing glass can be divided into composite fireproofing galss and monolithic fireproofing glass by the structure.
- Q: What does refractory mean?
- Ordinary refractories are often used brick, semisilica brick, clay brick, high alumina brick, magnesia brick etc..Special materials often use AZS 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 onUnshaped 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: Fire insulation and fireproof insulation board materials What is the difference in performance?
- Fireproof Materials prevents burning through insulating while others by chemical reactions. The overall heat conductivity coefficient of Insulation materials are generally lowered by thermal conductivity of the material itself and the structure of it. Inorganic active insulation material uses ordinary cement, insulation stone, calcium powder, Platycodon grandiflorum as the main raw material.
- Q: Classification of porosities in refractories and their effects on properties
- The first two types of stomata are commonly examined, known as apparent porosity.
- Q: Are there any differences between insulation and refractory materials ?
- I will explain to you in a simple way. Refractory materials can resist more than 1200 degrees, some of which are not insulation materials, such as firebricks, which can directly contact with heat source, has little insulation effect. Ceramic fiber, high silica, etc. are all refractory materials which can insulate. Insulation materials with poor performance usually is lower than 800 degrees, which have large thermal resistance, and low thermal conductivity, high porosity. Thus they reduce the thermal loss. To put it simply, insulation materials store most of the heat and only let a small part of heat lose through the air, thus the heat has been isolated. Glass fiber, rock wool, flexible material for thermal insulation, etc. I hope you can understand it.
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Raw Materials for Refractory:High Alumina Cement, Aluminate Cement, Refractory Cement
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 20000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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