Natural Graphite Powder 400mesh China Manufacturer

Natural Graphite Powder 400mesh China Manufacturer

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 20 m.t.

Supply Capability:: 5000 m.t./month

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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:Classification of graphite powders: High purity sub micron graphite particles have a very wide range of applications: electronic information industry, CRT display manufacturing black conductive coatings, by the use of liquid crystal display device, a sensor and a color decomposition device on the photosensitive black film, flat panel display color liquid crystal color plasma for improving emission effect and part of state color contrast, ultrafine tungsten, molybdenum wire drawing and other senior paint, lubricating oil and grease manufacturing, high performance battery manufacturing and foam iron nickel film is widely used in many industries such as high purity sub micron graphite particles.High pure graphite superfine powder colloidal graphite powder, mainly used in powder metallurgy, pen special, special lubricating oil, lubricating grease, special special batteries special conductive coating, special, special coating, lubrication of defense, scientific research institutions of scientific research, civilian nuclear power, aerospace and special special strategic weapons power interference smoke bomb, shielding, colloidal graphite powder production in China is the development of industry of our country graphite industry pacesetter, part of the technology has reached the international advanced level.

Q:Why is the battery electrolyte more potassium hydroxide and sodium hydroxide is less used?: The solution of potassium hydroxide at a density of 1.25~1.27 (15 DEG C) is used at temperatures below -15. For the purpose of taking into account the low temperature performance and the charge holding capacity, the sealed nickel cadmium battery adopts an aqueous solution of potassium hydroxide with a density of 1.40 (15 DEG C). In order to increase the capacity and cycle life of battery, usually adding lithium hydroxide amount in the electrolyte (per litre of electrolyte and 15~20g).

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's the conductivity of graphite powder, silver powder?: These two values show that the resistivity of silver is small, so the conductivity of silver powder is better

Q:Refractive index and absorbance of graphite powder: When the matter to be measured is different, or the wavelength chosen is different, the molar absorption coefficient will be different, so that it can not meet the quantitative relationship of Bill's law.

Q:The axis and drum can use graphite powder lubrication: This doesn't seem good. Graphite powder is a solid lubricant. It is suitable for heavy equipment lubrication. The axis and drum or low viscosity lubricating grease is better, so fast.

Q:The graphite powder can replace thermal grease?: No, graphite powder has the special effect of fast heat transfer, but it does not have the ability to conduct heat

Q:Can I use super fine stone powder in grease or lubricating oil?: Can be pro, ultra-fine stone toner itself has a lubrication function, in Qingdao Huatai graphite section for grease and lubricating oil, you can look at, do not understand, you can ask me.

Q:How can graphite paper be made? Can graphite powder be solidified without brittleness?: Single layer graphite paper is all graphite products, excluding other materials

Q:How much is one graphite used as electrode?: Graphite particles 6800 yuan / ton, graphite fine powder 8000 yuan / ton, you buy 30 yuan / kg is the natural graphite powder? Not made of graphite electrodes. The graphite powder used in the electrode is actually synthetic graphite powder.

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