High Carbon Graphite Round Products - Raw Materials for Refractory
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 500 m.t.
- Supply Capability:
- 2000 m.t./month
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Graphite block,as one of the most important graphite products, is widely used in such field as metallurgy, mechanical, electronics and chemical industry and so on. It is Vibration-molded or extruded, carbonized and graphitized under precise technical control.
1.Typical Featuring Characters:
Higher mechanical strength,easy sliding,stronger heat and chemical stability,
Well function in anti-shock and anti-corrosion,heat/electric conductivity.
Easy to be machined,etc
2. APPLICATION
Used in industries like metallurgy, chemistry,electronics,building constructions,nuclear energy,bearings,EDM,semiconductor,mold-sintering devices,etc
3. GRAIN SIZES 0.8MM,2.0MM,4.0MM,8.0MM
4.Graphite Block Round Dimensions (mm)
ø 600*2000; ø 700*2000; ø 800*1800;
580*540*3000;600*200*3000;600*200*2500;
1300*520*160; 1200*500*300;1300*520*160; 1200*500*300;
1300*520*160; 1200*500*300;
5. Some Properties: Graphite block Carbon block Graphite round Isostatic graphite block
Bulk Density: ≥(g/cm³) 1.80 Ash: ≤(%) 0.39 Compressive Strength: ≥(Mpa) 80
Flexural Strength: ≥(Mpa)45 Grain Size: ≤ 8.0 CTE (10-6/°C) : 2.9 MAX.
Resistivity: ≤11μΩm F.C.:98% min
- Q: What are grade classifications of the external walls fireproofing material?
- 1. The thermal insulation material of level A combustion performance: Rock wool, glass wool, foam glass, foamed ceramics, foam cement, hole-closed perlite, etc. 2. combustion performance is level B1 insulation materials: Extruded polystyrene board (XPS) after special treatment / Special treatment of polyurethane (PU), phenolic aldehyde and gelatine powder polyphenyl granule 3, combustion performance is level B2 insulation material: Molding polystyrene board (EPS), extruded polystyrene board (XPS), polyurethane (PU), polyethylene (PE), etc. See the 2009 edition construction technical measures 4.3.6 Level A insulation material is only for fireproofing, but its thermal insulation performance is not better than organic XPS \\ EPS and other materials.
- Q: How to divide fire rating of decorating materials ?
- Generally speaking, it is divided into Level A: noninflammability; B1: difficult-flammability; B2: combustibility; B3: inflammability.
- Q: What's the fireproof specification for constrcution external wall thermal insulation materials?
- Specification for constrcution external wall thermal insulation materials: Article 1 In order to implement the "State Council opinions on strengthening and improving fire prevention work" (state issued [2011] No. 46), to standardize fireproof design and application of external wall thermal insulation materials of newly constructed, renovated, and expanded civil buildings and to prevent and reduce fire of building external wall thermal insulation materials, this provision is made in accordance with relevant national technical standards and our province real situation. Article 2 When there is no cavity between external wall thermal insulation material for exterior wall and base wall and between decorative layers, the insulation system shall comply with the following provisions: (A) Residential buildings: 1. When the building is higher than 54m, combustion performance of the thermal insulation material shall be A level; 2. When the building is not higher than 54m,combustion performance of the thermal insulation material shall be at least B level. When using B1 level insulation materials, non-combustible materials should be used to make the protective layer, and a protective layer thickness of the first floor of the building should be not less than 10mm, the other floors not less than 5mm; incombustible?materials of more than 300mm height should be used to make horizontal fire barrier zone in every floor. (B) Other buildings in addition to residential buildings
- Q: What are the meanings of azs, 34% and ec in fused brick?
- The fused brick, also called zircon corundum brick, is shorted as AZS for three chemical components in Al2O3-ZrO2-SiO2 ternary diagram. I don't know the meaning of EC.
- Q: What is unshaped refractory?
- Unshaped refractory is a mixture made of aggregate and powder, binder or other admixture. It can be used directly or after proper liquid mixing. The material is a new type of refractory material after calcination, the refractoriness of not less than 1580 DEG C unshaped refractory materials by various varieties, production method and use method thereof can be divided into concrete, pouring material, plastic, ramming material, gunning, casting material, coating material, dry ramming material fire, mud, all kinds of repairing materials (with asphalt surface patch charge, Ma Dingsha) also do not belong to the shape of the column.
- Q: I want to consult the fire resistant level standards of external wall thermal insulation materials.
- 1, The thermal insulation material that has level A combustion performance: Spraying inorganic fiber, glass wool, foam glass, ceramic foam, rock wool, foam cement and perlite obturator, and so on. 2, The thermal insulation material that has level B1 combustion performance: Special processed extruded polystyrene board (XPS) / special processed polyurethane (PU), phenolic and polystyrene powder. 3, Thermal insulation materials that have level B2 combustion performance: Molded polystyrene board (EPS), extruded polystyrene board (XPS), polyurethane (PU), polyethylene (PE), etc. See article 4.3.6 in the 2009 edition construction technical measures. Level A insulation material is just for fire protection, so its thermal insulation performance is worse than the organic XPS or EPS materials. Hope this will help you.
- Q: Who knows about the differences between 3M fireproofing materials and ShiLiDe materials?
- ShiLiDe materials are rubbish which can not used in many industries now, because the main materials of which are mineral wool boards. These boards are harmful to human body, will lead to chronic poisoning, and the quality of which is bad! You must pay attention to it! They can not be used in chemical and pharmaceutical plants.
- Q: What's the heat conductivity coefficient, specific heat capacity and density of the refractory material of magnesite-chrome brick and magnesia-alumina brick respectively?
- It is suggested that you find some samples of well-known manufacturers, such as Ogilvy and Mather Group, and that will be more correct.
- 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: Firing high temperature kiln of refractory and internal temperature being as high as 1600 ℃, metal heat exchanger can't use, how to do?
- 1>3>。 When metal heat exchanger is in 700 ℃, it must process high temperature protection, mixed cold wind or cold blast to protect heat exchanger. So this will waste a lot of energy; The comparison of high temperature resistant ceramic heat exchanger using temperature is 1350 ℃ to 1450 ℃; metal heat exchanger using temperature 700 ℃; heat utilization comparison of ceramic heat exchanger can be placed in 1350 ℃ or higher (highest available to 1450 ℃); the oxidation resistance, a very short time will burn out;2 >, waste heat recovery rate is high. Replacing the metal heat exchanger in high temperature and corrosion environment; Comparative ceramic heat exchanger can be used under the condition of 1350 ℃ for a long time. Let's make a comparison, if it is a refractory material industry. <, ceramic heat exchanger is simply won't appear, under the condition of equal to ceramic heat exchanger using, energy saving effect is best, can exchange for the high temperature. <. Ceramic heat can be placed on the nearest of exchanger flue outlet . <, and metal heat exchanger put in place contrast to the ceramic heat exchanger. In the process of using metal heat exchanger, if this situation happens, you can consider the ceramic heat exchanger. Temperature difference is between 650 ℃ to 750 ℃. If the metal heat exchanger is placed in normal place where ceramic heat usually put;The service life comparison: since ceramic heat exchanger with high temperature resistance, this partly replace metal heat exchanger. What's more, energy-saving rate is also different. Metal heat exchanger can be placed in 700 ℃ or less;4 >, corrosion resistance, its application effect is very different. So the metal-heat-exchanger's heat-resistant temperature is high and the service life is the countless times of metal heat exchanger. The place with highest temperature does not need high temperature protection.
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High Carbon Graphite Round Products - Raw Materials for Refractory
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 500 m.t.
- Supply Capability:
- 2000 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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