NFG 895 Crystalline Flake Graphite Powder For Refractories

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Product Description:

Description of Natural Flake Graphite: 

  1. Types: Medium Carbon Graphite.

  2. Specifications: The particle size ranges form 45um-500um (325mesh-35mesh), and the carbon content ranges from 85 to 95%.

  3. Types: High Carbon Graphite.

  4. Specifications: The particle size ranges form 45um-500um (325mesh-35mesh), and the carbon content ranges from 96 to 99%.

 

Specifications of Natural Flake Graphite: 

Particle size (unit: mesh)        Particle size (unit: um)      Fixed carbon content

32mesh                                    560                              85%---99%

1000mesh                                15                                80%---99%

1500mesh                                10                                80%---99%                    

2100mesh                                 6                                 80%---99%

         

Advantages of Natural Flake Graphite: 

  1. Perfect crystallization, thin flake, good flexibility,

  2. excellent chemical and physical properties, superior conductivity,

  3. self-lubricity and resistance to temperature, corrosion and hot shock, and much more.

  4.  

  5. Usage of Natural Flake Graphite: 

  6. Crystalline flake graphite is widely used as an essential nonmetallic mineral in almost all industries.

  7. It can be used as high-quality refractory material or casting coatings in metallurgical industry,

  8. black pencil lead in light industry, carbon brush in electronics industry, electrode in battery industry

  9. and catalyst in chemical fertilizer industry, to name just a few. After being deep processed,

  10. crystalline flake graphite can be used to produce TV tube coatings, graphite friction

  11. reducing additives and many other high-tech products.

 

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Q:Thermal conductivity and density of graphite powder
In the formula, P is porosity, and lambda 0 is the thermal conductivity without hole (P=0). This formula is of historic significance. For graphite, the pores are not spherical or more unequal, but of course they do not apply. But it shows that the larger the porosity (the smaller the density), the smaller the thermal conductivity. This qualitative conclusion is correct. An extruded graphite core with different impregnation treatments
Q:What kinds of graphite powder has it? What's the function?
Its main use focuses on sealing and lubrication, and stone toner is powder, is the basis of other graphite products
Q:Two simple physical methods are used to identify iron powder and graphite powderHurry up, you need it urgently! Thank you
The first kind, with magnet, can be sucked up is iron powder. Second kinds, high temperature melting, the first melting is iron powder
Q:Graphite powder made of graphite oxide, how much weight gain?
The specific gravity is 1.9 ~ 2.3. Under isolated oxygen conditions, the melting point is above 3000 degrees Celsius and is one of the most refractory minerals. At room temperature, the chemical properties of stone toner are relatively stable, insoluble in water, dilute acid, dilute alkali and organic solvents. The material has high temperature resistance and conductivity, and can be used as refractory materials, conductive materials, wear-resistant and lubricating materials.
Q:Whether the ordinary graphite powder is sprinkled on the electronic instrument can lead to the malfunction of the instrument
If the graphite powder in electronic instrument, contact electric circuit, it will cause a short circuit or lead to equipment failure, want to know more information and knowledge can be graphite powder, graphite powder to Qingdao Huatai to understand, can understand the causes of graphite powder, instrument failure hope to adopt, thank you L.
Q:Will dust explosion occur in graphite dust? If you have definite or negative judgment, please share it according to data.
Any object that is crushed will have a surface energy (internal energy), but the temperature will not increase, so the specific heat will become largerFuel burns because its energy is already full (reaching a point of fire)When the object reaches the ignition point, internal energy = (ignition +273.15) * specific heat capacity
Q:Crystal graphite of graphite powder
At room temperature, lambda A is about 200 times larger than lambda C. As the temperature increases, this ratio decreases, but remains large. Therefore, the thermal conductivity of polycrystalline graphite composed of microcrystalline is controlled by the thermal conductivity of microcrystalline layer lambda a, and lambda C can hardly be considered. The lambda a of natural flake graphite is between 280 and 500W/ (m * K) at room temperature. The ratio of lambda a/ lambda C is between 3~5, so the perfection of crystal is far better than that of high directional pyrolytic graphite.
Q:Why is the battery electrolyte more potassium hydroxide and sodium hydroxide is less used?
Anode material of nickel cadmium batteries is a mixture of nickel hydroxide and graphite as anode material, sponge cadmium and cadmium oxide powder powder, the electrolyte is usually sodium hydroxide or potassium hydroxide solution. When ambient temperature is high, use a sodium hydroxide solution with a density of 1.17 to 1.19 (15 C).
Q:Are graphite powders soluble in water, dilute acids, dilute bases, and organic solvents?
Under heating, the graphite powder is more easily oxidized by acid. At high temperature, it can react with many metals to produce metal carbides, which can smelt metals at high temperature
Q:Use of carburizing agents
In the smelting process, due to improper ingredients or improper loading and excessive decarburization, the carbon content in the steel sometimes does not meet the requirements of the top stage. The commonly used carburizing agents include carburized pig iron, electrode powder, petroleum coke powder, charcoal powder and coke powder. When smelting medium and high carbon steel in converter, the oil containing little impurity is used, and Jiaozuo is used as carburizing agent. For BOF steelmaking using recarburizer requirement is high to low fixed carbon, ash, volatile matter and sulfur, phosphorus, nitrogen and other impurities, and dry, clean, moderate size.

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