Graphite Powder Oreillys 400mesh Natural China Manufacturer

Graphite Powder Oreillys 400mesh Natural China Manufacturer

Ref Price:

Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 20 m.t.

Supply Capability:: 5000 m.t./month

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

FAQ

1.Price
We usually quote within 24 hours after getting your detailed requirements, like size, quantity etc.
If it is an urgent order, you can call us directly.
2. Samples
Yes, samples are available for you to convince yourself on the quality.
Samples delivery time will be about 3-10 days.
3.Lead time for mass production
The lead time is based on the quantity, for graphite products , apply Dual-use items license need about 15-20 working days.
4.Terms of delivery
We accept FOB, CFR, CIF, EXW, etc. You can choose the most convenient way for you. Besides that, we can also shipping by Air and Express.
5.Packaging
We are packed in 20kg or 25kg Per Bag, Ton Bag, or according to your requirements.
6.Notice
Please note that the price on made-in-china is a rough price. The actual price will depends on raw materials, exchange rate , your order quantity etcs. Hope to cooperate with you for long relations, Thank you !

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.

Q: Is the graphite electrode broken like graphite, fossil oil, coke and graphite powder?: The graphite powder is soft, black and gray, greasy and polluting paper. Hardness is 1~2, along the vertical direction with the increase of impurities, its hardness can be increased to 3~5. 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: Why is there a range of electrode powder powder resistivity? The reasons for the high and low are not good.: Read millivolt values and sample height, calculated according to the formula P =UA/IL type resistivity. The resistivity of the conductor is in P, Omega - M; L for voltage measurement distance between two probes for m; A for the conductor cross-sectional area, m2; U, the voltage between two probes for the determination of voltage V; I the strength of the current flowing through the conductors, the resistivity of A. graphite is (8 ~ 13) * 10-6 (/m), high - low note inside magazines. For reference only!

Q: Is battery capacitor powder dangerous?: Graphite powder is a kind of negative electrode material for batteries. The process of graphite powder, will after the bursting of the raw ore by car to crush the rock breaking machine, and ball mill by flotation, the flotation of graphite ball mill grinding wet material sending selected, wet material will be selected to bagging dry dry machine, shower shower has become dry, dry material is graphite products.

Q: What is the use of flake graphite in making flake graphite powder?: Flake graphite powder: natural crystalline graphite, the shape of fish like phosphorus, is a six party crystal system, layered structure, with good resistance to high temperature, conductive, heat conduction, lubrication, plasticity and acid and alkali resistance.

Q: Why should the lubrication of automobile leaf springs be made of graphite grease?: Graphite grease is a kind of graphite grease made from inorganic thickener, condensed ester, synthetic oil, and refined with superfine graphite powder, no oxidation, corrosion resistance and other additives.

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: What is the simple test method for graphite powder used in casting?: Mainly depends on its carbon content, hand stick a little bit on the white paper uniform, if there is a clear scratch is graphite powder