Super Crystalline natural flake graphtie for conductivity

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Specifications

Carbon Content LG
size -200-1000mesh
fixed carbon 94-99%min
moisture 1%max
screen undersize 80%min


 
Advanced production equipment
 The Company has the advanced process of graphite production line ,the domestic first-class could be expanded graphite,  flexible  graphite sheet production line .It  is well –equipped, technologically advanced.

Main products
 Main products The Sea Whale brand graphite series products,include : Medium Carbon Graphite ,High Carbon Graphite ,Micro powder Graphite,Expandable Graphite ,Graphite Products. vproduct category  The natural flake graphite , Micro powder Graphite , Expandable Graphite ,Graphite coil vNo.1 , The natural flake graphite vTypes:  Medium Carbon Graphite ,High Carbon Graphite ,High Purity Graphite vSpecifications :The particle size ranges form 45μm-500μm(325mesh-35mesh),and the carbon content ranges from 85 to  99%.
Micro powder Graphite Specification description
Micro powder Graphite
Types F
Specifications: The particle size ranges from 10um to 75um.
Advantages: Excellent property of crystalline flake graphite, unusual oxidation resistance, self-lubricity, mould ability and adhesively, superior electric and thermal conductivity.
Use: Micro powder graphite can be used (1)additive of metallurgical industry.(2)materials of flexible graphite.(3)absorbent materials of battery.(4)additive of lubricant.(5)additive of refractory.Main index of physics and chemistry (Medium-sized)






Micronized graphite powder Brand No. Fixed carbonAshMoistureParticle sizeInspection Equipment
(%)min (%)max (%)min (um) min
F(-)200mesh80-991.0-200.575wet sieve
F(-)325mesh80-991.0-200.545wet sieve
F(-)400mesh80-991.0-200.538wet sieve
F(-)500mesh80-991.0-200.530Particle seizer
F(-)600mesh80-991.0-200.525Particle seizer
F(-)800mesh80-991.0-200.518Particle seizer
F(-)1000mesh80-991.0-200.515Particle seizer
F(-)1500mesh80-991.0-200.510Particle seizer


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Q:Can I use super fine stone powder in grease or lubricating oil?
Not really. It depends on the amount of graphite powder. If the graphite powder forms a continuous through zone, it can be considered a conductor.You can use lubricating oil, preferably not with graphite, which will cause the sliding rheostat to fail
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.
Q:What are the hazards of inhalation of graphite dust?
Personally think: black carbon on the human body, and the extent of the time has a lot to do with. On the human body caused by short-term damage is limited to a certain extent, can be restored (but the inhaled particles are difficult to be excreted); over the long term, great harm to the human body, but also can not be restored. Heavy inhalation of carbon black dust can at least cause carbon black, dust, and lung disease (occupational disease, pneumoconiosis). Included in the pneumoconiosis in China: silicosis, coal worker's pneumoconiosis pneumoconiosis, graphite, carbon black pneumoconiosis, asbestosis, talc, mica, cement pneumoconiosis pneumoconiosis pneumoconiosis, Potter's pneumoconiosis, aluminum pneumoconiosis, welders' pneumoconiosis, graphite pneumoconiosis etc.)! At present, the world's lack of treatment for pneumoconiosis, suffering from pneumoconiosis equivalent to sentenced to death. The number of pneumoconiosis patients in our country is equal to that of pneumoconiosis patients in other parts of the world. Please pay more attention to it and don't inhale any more
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:How to measure the conductivity of powdered graphite?
The conductivity of conductive graphite powder was measured by resin methodTo buy some conductive paint resin, add the same amount of conductive graphite powder, and then coated on a board, with digital multimeter to measure its conductivity on the list.
Q:How do you use graphite powder in copper?
It is to drill holes on the copper block and pour the graphite into the hole to ensure that the stone toner can not run out and play the role of oil-free lubrication
Q:Know how the colloidal graphite powder comes in
There are two ways to make colloidal graphite: (1) mechanical method. Natural graphite is crushed and treated with hydrochloric acid and hydrofluoric acid to remove impurities. Added to the aqueous solution of tannic acid, which is repeatedly inverted into paste. Colloidal graphite can be obtained by adding a certain proportion of water and ammonia, and then by ultrasonic treatment to further reduce the particle size. (2) chemical method. After being purified and crushed, the natural graphite is added with concentrated nitric acid and concentrated sulfuric acid and water at 90 DEG C, and then obtained by cleaning, drying, adding water, ethanol, acetone and other dispersing agents to obtain colloidal graphite. Add stabilizer such as sodium oleate, sulfate and so on, so that graphite particles do not agglomerate. Ammonia transfers the graphite colloid to the gum solution and regulates the pH value.
Q:What companies use graphite powder, graphite particles, graphite ball, silicon carbide alloy ball?
Refractory industry, because of the high temperature resistance of graphite and silicon, it will be applied in refractory industry.
Q:Graphite powder screening process, because with static holding together, resulting in vibration screen plugging network how to solve?
The other is to install an electrostatic eliminator when the material falls into the vibrating screen. When the material is dropped, the powder static electricity is removed and the mass will not be assembled again.
Q:Like the wolf, adding graphite powder in the failure of electronic instrument air explosion in aircraft rocket season, really make it
Unable to do so, although the graphite can make cars, aircraft and other short circuit, but the aircraft is basically insulated, airtight, the engine is not affected. This is the need for film and television work.

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