High Carbon Graphite Round Products

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
500 m.t.
Supply Capability:
2000 m.t./month

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Product Description:

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

 

 

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Q:What are the materials of insulation firebricks?
The furnaces of firebricks are generally divided into two types, namely, unshaped refractory materials and shaped refractory materials. Unshaped refractory materials, also called castables, is a mix of powdery particles of many aggregates and one or multiple adhesives. They must be stirred well with one or multiple liquids when in use, which has a strong liquidity. Unshaped refractory materials generally refers to firebricks. They have standard rules about their shapes and can also be processed temporarily as needed.
Q:What are the new refractories? What are the features? How about their application and development?
In metallurgy, in what position should it be used, in order to make the best. Answers are as following. In iron, steelmaking or converter. When questioning, pay attention to the ways. Answers: Try to use synthetic refractory materials.
Q:Does anyone know which materials belong to light fire resistant material?
Fire partitions can be divided into organic and inorganic fire partitions, the main ingredient of organic fire partitions is organic material, which can be used for cable tray with corrosion-resistant and fire protection requirements, and the main ingredient of inorganic fire partitions is inorganic material, mainly used for fire protection. As the main component is inorganic material, it can not be use in projects with acid-resistant and alkali-resistant requirements. Of course, the price of the same amount of organic fire partitions is generally more expensive than that of the inorganic fire partitions . The fire endurance of these two products of general enterprises are 3 hours.
Q:What are the technical requirements for refractories?
The range of refractory is too broad. Therefore it is difficult to answer this question, but it is certain that there should be technical requirements.
Q:How about the prospect of refractory material?
Due to the rise of raw material, the prospect is not good with inflation, lower prices and decreased profits. The product requirements have been enhanced and there is vicious competition. Therefore, it is really bad.
Q:which kind of material is chosen for fireproofing window?
(1) window frame uses steel frame or wooden frame with certain strength that can safeguard the integrity and stability of the components. (2) steel frame and mound layer can choose galvanized steel sheet or stainless steel plate. Its selection criteria conform to the article 5.1 in GB12955 Steel Fireproof Door General Technical Condition. (3) the selection criteria of wooden frame and mound layer should conform to the article 5.1 in GB12955 Wooden Fireproof Door General Technical Condition. (4) the inside filler material of steel, wood frame should use incombustible material. (5) fire-resistant glass can choose test approved products without affecting the fire resistance of fireproofing windows . Light transmittance of glass should not be less than 75% of same layers commom sheet glass. (6) the sealing material between the frame and the fire-resistant glass should use flame retardant materials, it can play a role of fireproofing and smoke insulation in the fire.
Q:How to use fireclay?
Mix refractory cement (ie aluminate cement CA50) with some refractory aggregate (bauxite, slag from flint clay) and powder (ie, crushed aggregate). Add some water to the mixture and stir, and it can be used. The clinker can be refractory powder.
Q:How many kinds of fireproof materials are there in the market?
I wonder that how many kinds of fireproof materials are there? Does anyone know about it, please tell me, thanks
Q:Which brand of refractory fiber hard thermal insulation board is better?
Thermal insulation materials are divided into two types: porous material and heat reflecting material. The former uses the air void contained in the material to maintain thermal insulation itself for the heat conductivity coefficient of air or inert gas within the voids is low, such as foam material, fibers and other materials; the latter material has a high coefficient of reflection which can reflect the heat, such as gold, silver, nickel, aluminum foil or metallic coated polyester and polyimide thin films. Aerospace industry has strict requirement for the weight and volume of thermal insulation material, and it is often also required to has the properties of noise absorption, vibration attenuation, and anti-corrosion. Different aircrafts have different requirements for thermal insulation materials. Aircraft cabin and cockpit usually use foam, ultra-fine glass wool, high silica cotton to maintain thermal insulation. Earlier missile head uses phenolic foam plastic as thermal insulating material. With the application of polyurethane foam with good thermal endurance, the single insulating material has been developed to sandwich construction. A few millimeters foaming coating is coated on the skin outside the missile instrument bay, it is anti-corrosion coating at room temperature and when aerodynamic heating reach 200 ° C or more, it will generate foam evenly thus maintaining thermal insulation. Artificial earth satellite moves in an environment where the temperature varies from high to low, so it must use laminated thermal insulation material with high reflecting performance, which is usually made up of dozens of layers of aluminum film, aluminized polyester film, and aluminized polyimide film. In addition, the successful development of the surface thermal insulated tiles has solved the problem of thermal insulation of the space shuttle, it also marks a higher level of development of insulation materials.
Q:What's the refractoriness and how to measure the refractoriness?
Bottom each side length is 8 mm and upper side length is 2 mm. Under a certain temperature-rising speed, when heating, refractory's resistance to high temperature from melting is called refractoriness. The properties of cross section into an equilateral triangle and height is 30 mm. When it bends down until the vertex and chassis contact temperature is the refractoriness of sample. It bends due to the influence of its weight. Make the will-measured material into standard pyrometric cone.

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