NFG 895 Crystalline Flake Graphite Powder For Refractories

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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: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:Sunshine door lock winter treatment
Check the locking gap between the lock body and the locking plate regularly, whether the lock tongue is matched with the height of the locking plate hole or not, the optimum clearance between the door and the door frame is 1.5mm-2.5mm. In case of any change, the position of the door hinge or the lock buckle shall be adjusted. At the same time pay attention to the weather (spring wet, dry in winter) caused by cold contraction, thermal expansion, to ensure that the door and door frame, locking body and the locking plate gap reasonable coordination, in order to ensure the smooth use of locks. When you buy, you can ask the manufacturer directly.
Q:Why is there a range of electrode powder powder resistivity? The reasons for the high and low are not good.
A cylinder is inserted in the pipe, and the cross section of the pipe is slightly smaller than the inner diameter of the sample tube. The lower cylinder is fixed on the base of the instrument, and the upper cylinder can move up and down in the tube as a prop to pressurize the sample. The sample is located in the insulating casing on the cylinder between the positive and negative pole and galvanometer millivoltmeter are respectively connected to the drum two cylinder, rotary measuring height, driven by the leading screw rod lifting rod to balance, balance level, sample by 3.92MPa pressure, then switch on the current, the current adjustment into the sample to 300mA, then open the switch millivoltmeter,
Q:Why does an electromagnetic point timer not prick a needle and use toner paper?
It's a combination of graphite powder and current to mark the surface of the tape. You can imagine it as an inkjet printer
Q:Is the graphite powder produced with sulphuric acid?
Not only by crushing crusher can achieve, such as high purity stone toner, expanded graphite by sulfuric acid and other chemical methods for purification, preparation and so on
Q:What is the ratio of the coated sand to the graphite powder?
Or change the sand species, change the high refractoriness sand species, this cost is relatively large.
Q:Crystal graphite of graphite powder
Pure graphite flake graphite and high directional pyrolytic graphite, which have less defects and larger sizes, can generally be considered as perfect graphite single crystals. Considerable research has been done on the thermal conductivity of such graphite. Under compressive stress, the pyrolytic graphite above 3000K processing, the bulk density is 2.25g/cm, 2.266g/cm is close to the theoretical density of the single crystal, the half width of the diffraction peak (002) show only 0.4 degree angle (mosaic angle), is also very close to the theoretical value of zero. The thermal conductivity of this graphite is shown in table 1. These values are generally considered to represent the corresponding values for single crystal graphite. The thermal conductivity along two principal directions is denoted as lambda a along the layer, and is marked by lambda C along the vertical plane.
Q:How can the antirust graphite powder used for locks be operated? Where is it painted?
In the process of switching the door locks on weekdays, the best holding handle lock tongue into the lock, closed the door and then let go, don't bang the door, otherwise it will reduce the service life. Do not use wet cloth to wipe the lock and handle, because some metallic lock will rust; lock alloy material will lose coating worn, beautiful appearance.
Q:What mask should be used to prevent stone powder?
The graphite powder itself is not toxic.
Q:Can graphite be made directly from graphite powder? How about the effect?
Let the graphite powder stick into shape. The commonly used asphalt in the industry is used as binder, and graphite powder and asphalt are mixed and pressed to form. It is also necessary to heat, roast and graphitized the asphalt in the graphite blocks to obtain certain heat conducting, conductive or other uses of Shi Mobang.

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