Raw Materials for High Alumina Refractory Cement by CNBM
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- 25 m.t.
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- 2000 m.t./month
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Description of High Alumina Refractory Cement
Products | Calcium Aluminate Cement /High Alumina Cement CA-50 |
Applications | 1,As binders calcium aluminates cement are used in concretes and mortars for specialised applications for their properties of resistance to corrosion, abrasion and heat combined with rapid hardening and the ease of controlling grading variations. with new properties are then obtained. In this way, aluminates act as both a complex hydraulic binder and a mineral reagent interacting with the other components in the mix. 2,As reagents, calcium aluminates are found in non-hydraulic systems. This is the case in metallurgical treatments (iron and steel industry, foundry) where specific grades of calcium aluminate are used for their low-temperature melting properties and for trapping molten metal impurities. |
Features | 1,Very low mixing-water requirement |
2,Very high purity | |
3,High product consistency | |
4,High cold and sintered strength | |
5,Very tight specifications of setting times |
product | CA50F | A600 | A700 | A900 | CA50R | ||
Chemical Compositionn (%) | SiO2 | ≤8.0 | ≤7.8 | ≤7.5 | ≤5.5 | ≤7.0 | |
Al2O3 | ≥50.0 | ≥50.0 | ≥51.0 | ≥53.5 | ≥52.0 | ||
Fe2O3 | ≤2.5 | ≤2.5 | ≤2.5 | ≤2.5 | ≤2.5 | ||
R2O | ≤0.4 | ≤0.4 | ≤0.4 | ≤0.4 | ≤0.4 | ||
S | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | ||
Cl | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | ||
45µm residue (%) | ≤20 | ≤15 | ≤12 | ≤8 | ≤8 | ||
Blaine (m2/kg) | ≥300 | ≥300 | ≥320 | ≥350 | ≥350 | ||
InitialSetting (min) | ≥30 | ≥45 | ≥60 | ≥90 | ≥30 | ||
FinalSetting (h) | ≤6 | ≤6 | ≤6 | ≤6 | ≤6 | ||
Flexural strength (MPa) | 6h | —— | —— | —— | —— | ≥3.0 | |
1d | ≥5.5 | ≥6.0 | ≥6.5 | ≥8.0 | ≥7.0 | ||
3d | ≥6.5 | ≥7.0 | ≥7.5 | ≥10.0 | ≥8.0 | ||
Compressive strength (MPa) | 6h | —— | —— | —— | —— | ≥30 | |
1d | ≥40 | ≥45 | ≥55 | ≥72 | ≥60 | ||
3d | ≥50 | ≥55 | ≥65 | ≥82 | ≥70 | ||
- Q:What are the uses of refractory materials of glass furnace?
- crown--high-purity silica bricks; wall--melting end 41# fused zirconia corundum bricks with no shrinkages(41% of zirconium, similarly hereinafter), cooling end 33# fused zirconia corundum bricks with no shrinkages; bottom--33# fused zirconia corundum bricks(with shrinkages); breastwork--33# fused zirconia corundum bricks(with shrinkages); port--33# fused zirconia corundum bricks(with shrinkages); regenerator chamber--the upper part is for magnesite-chrome bricks, the bottom part is for high-duty fireclay bricks; checker--the upper part is for high purity magnesia bricks, and the bottom part is for magnesite-chrome bricks; flue--clay bricks. This is the best configuration. If the funds are limited, the configuration can be lowered, for example, the wall will be changed to 38 #......
- Q:What are the electrical fire protection materials?
- Flame retardant organic resin: They can be classied into PVC, vinyl chloride, chlorinated rubber, epoxy resin emulsion, epoxy resin, phenolic resin, etc.. Fire retardant additive: Phosphorus and halogens, nitrogen organic compounds (chlorinated paraffin, tributyl phosphate (TBP) and polybrominated diphenyl ethers) and boron (boric acid, zinc borate, boric acid aluminum), antimony, aluminum, zirconium inorganic compounds.
- 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:Who knows the model of fireproofing materials?
- Inorganic binder: it mainly includes sodium silicate, gypsum, phosphate, cement,etc; refractory mineral filler: aluminium oxide, asbestos powder, calcium carbonate, perlite, cornstarch,etc; nonflammable organic resin: it mainly includes polyvinyl chloride, perchloro-ethylene, chlorinated rubber, neoprene latex, epoxy resin, phenol resin,etc. Nonflammable fireproof addictive: it mainly includes phosphorus, halogens, nitrogen organic compounds (chlorinated paraffins, TBP ( tributyl phosphate ), decabromodiphenyl ether), and borate series (boric acid, zinc borate, aluminium borate), antimony series, aluminium series, zirconium series and other inorganic compounds.
- Q:What is neutral refractory? Can refractory suppliers tell the main components of it?
- // Baike? Url x3d CQ3i6_yUCWUMgk3aaRGGLURNtvKPl5IdZpj35Yvommk7Nyif0IJD-SkdIW29GCHwLpb9cT9Ii25GLcEJg-ZHcq "target x3d" _blank "x26gt; http://baike.baidu.baidu.
- Q:How about the prospect of refractory material?
- Cost reduction Refractory material is affiliated to base material factories such as steel, cement and glass. But the situation becoms more severe due to lmaterial reduction and waste. It is necessary to find a substitutional raw material.
- Q:How many levels are there in the classification of PP fireproof materials?
- PP fireproof materials level V-0: After two 10-second fame tests on the sample, the flame extinguishes within 30 seconds. Inflamer can not drop. V-1: After two 10-second flame tests on the sample, the flame extinguishes within 60 seconds. Inflamer can not drop. V-2: After two 10-second flame tests on the sample, the flame extinguishes within 60 seconds. Inflamer can drop.
- Q:How long does it take for refractory cement to solidify?
- 1. First you should be aware of the concepts of condensation and condesation time. Refractory cement belongs unshaped refractories, which when added water or liquid binding agent to mix, the agitation material will gradually lose thixotropy or plasticity and become in a state of solidification, thus is solidified. The time needed to finish the process is called solidification time. The whole process is divided into initial and final set. When beginning to lose plasticity called the initial setting, when called plasticity completely lost the final setting. 2. For refractory cement, the solidification time depends on the matching of the material and the parts and using methods. Under normal circumstances, in order to meet the requirements of time of construction, the initial set time should be no shorter than 40min, and the final set time should be no longer than 8H 3. There are also some exceptions. When refractory cement is used for spraying and injection operation together with other refractory castable, the set time is required as short as possible, sometimes flash set is required to prevent the occurrence of peeling or collapse of the spraying layer.
- Q:Development trend of refractories
- The foundation of China's refractories industry is still relatively weak, the utilization level of refractory material resources is low, the quality of refractory materials is not high, excess production capacity of ordinary products, the key products of some high-quality high technology content can be produced, but the quality is not stable, and the service life of refractory material consumption compared with foreign advanced level, there is a considerable gap. Therefore, the new trend of tracking foreign refractories science and technology development, carry out and supporting the development and application of advanced and basic theory research, to promote technological innovation of refractory materials, optimizing product structure, industrial structure adjustment, implementation of the strategy of sustainable development, it is very necessary.
- Q:Who knows the fire endurance of B-level fireproof doors and windows?
- Rock wool board of B-grade fireproof doors keeps 46mm in thickness, doors that are generally used in relatively common fire fighting access, while A-grade fireproof doors are generally used in machine rooms, warehouses, oil depots and other important fire fighting access and flammable and combustible pulbic places. B-grade fireproof doors are more widely used than A-grade fireproof doors.
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Raw Materials for High Alumina Refractory Cement by CNBM
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 2000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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