Graphite Powder for Keys 700 Mesh Natural Flake Made in China

Graphite Powder for Keys 700 Mesh Natural Flake Made in China

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: Is graphite powder conductive?: The bottom current may be the internal resistance of the battery is too large, in addition to graphite reasons, the contact state of battery cathode and graphite copper check, graphite powder, no contact measurement, the conductivity of no experience, resistance measurement of graphite column can be compared (with the current large and small current comparison test),

Q: Method for identifying iron powder, aluminium powder and graphite powder: 1. aluminum powder is silver, black substance attract rest with a magnet that attracted iron, not be attracted to the graphite2. Add equal mass, such as concentration of dilute hydrochloric acid, the gas is fast aluminum powder, slow iron, and do not produce gas is graphite.

Q: Is oxygen allowed in the oxygen pipe?: The so-called oxygen pipeline, which depends on the medical or edible, or industrial oxygen pipeline. If it is industrial, a little graphite is possible, but the proportion can not be too large

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.

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: How to measure the iron content in graphite powder?: Excessive amounts of dilute sulphuric acid can be used to measure the amount of gas produced, and then the amount of iron is calculated according to the amount of gas.

Q: What binder does the graphite powder form with?: Image, graphite powder, like flour, in order to make bar shaped, such as face and water, you need to add something. Because of the low activity of graphite powder, a kind of binder is needed. Let the graphite powder stick into shape.

Q: What is graphite powder?: 1) high temperature resistance: Graphite melting point of 3850 + 50 degrees, boiling point is 4250 degrees, even after the ultra-high temperature arc ignition, the weight loss is very small, the thermal expansion coefficient is very small. The strength of graphite increases with the increase of temperature, and the strength of graphite is doubled at 2000 degrees centigrade.2) conduction and thermal conductivity: the conductivity of graphite is one hundred times higher than that of ordinary non-metallic minerals. Heat conductivity exceeds steel, iron, lead and other metal materials. The coefficient of thermal conductivity decreases with increasing temperature, and even at extremely high temperatures, the graphite becomes hot.3) lubricity: the lubricity of graphite depends on the size of graphite scales. The larger the scale, the smaller the coefficient of friction and the better the lubricity.4) chemical stability: graphite has good chemical stability at room temperature, and can resist acid, alkali and organic solvent corrosion.5) plasticity: the toughness of graphite is good, but it can be a very thin slice.6) thermal shock resistance: when graphite is used at normal temperature, it can withstand the drastic change of temperature without damaging. When the temperature changes suddenly, the volume of graphite changes little and no cracks occur.

Q: How can graphite paper be made? Can graphite powder be solidified without brittleness?: Process for the preparation of graphite paper: high carbon flake graphite, graphite by chemical processing into acid (also known as graphite oxide or expandable graphite), in high temperature 960 to 980 DEG C for a few seconds, the level of the graphite lattice moment along the C axis expansion, a fiber floc type vermicular graphite. The expanded graphite is very soft, the roller for the rolling forming, expanded graphite and flexible graphite sheet or foil sheet.

Q: Influence and protection of graphite dust on electrical equipment in workshop: The graphite dust in the workshop is conductive, and the adhesion to the electric apparatus will affect the electrical insulation and lead to accidents. So we need to have the electrical box of graphite dust workshop to closed treatment, to prevent dust into the electrical cabinet.

Send your message to us

*Email

*TEL

*Quantity

*Unit