2023-08-03

What are the factors that affect the quality of flake graphite?

The quality of flake graphite determines the product quality of processed flake graphite powder. The flake graphite resource is crystalline natural graphite, which is formed by the metamorphism of carbonaceous rocks under long-term geological processes. The crystallization of flake graphite is in the form of flakes. The size of the flake crystal and the fixed carbon content of flake graphite are key factors that affect the quality of flake graphite. Below, we will take you to understand:As a basic processing material for various graphite powder products, the quality of flake graphite is a very important condition. Based on the quality and various parameters of flake graphite, it can be processed into flake graphite powder, ultrafine graphite powder, high-purity graphite, nano graphite, colloidal graphite and other graphite powder products. The size of flake graphite determines the lubrication performance of the processed graphite powder. The larger the size of flake graphite, the bett

2023-11-21

Material characteristics of graphite powder

Graphite powder is a substance that is very sensitive to chemical reactions. In different environments, its resistivity will change, which means its resistance value will change. However, there is one thing that does not change. Graphite powder is one of the good non-metallic conductive substances. As long as the graphite powder is kept uninterrupted in an insulated object, it will also be electrified like a thin wire. However, there is no accurate number for the resistance value, Because the thickness of graphite powder varies, the resistance value of graphite powder will also vary when used in different materials and environments. Due to its special structure, graphite has the following special properties:1) High temperature resistant type: The melting point of graphite is 3850 ± 50 ℃, and the boiling point is 4250 ℃. Even after being ignited by an ultra-high temperature arc, the weight loss and thermal expansion coefficient are very small. The strength of graphite increases with te

2023-07-21

Let's take a look at the use of battery -specific graphite in industrial applications

Battery -specific graphite has good chemical stability. The specially treated graphite has the characteristics of corrosion resistance, good thermal conductivity, and low penetration. Therefore, it is widely used in making heat exchangers, reaction tanks, condenser, combustion tower, absorbing tower, absorbing tower , Cooler, heater, filter, and pump equipment, are widely used in industrial departments such as petrochemical, wet metallurgical, acid -base production, synthetic fiber, papermaking, etc., which can save a large number of metal materials.It is a material for casting, casting, suppression, and high temperature metallurgy. Because of its low heat expansion coefficient, it is resistant to cold and hot, it can be used as a casting mold for glassware. After the graphite is used, the black metal can get accurate size, smooth surface, high finished product rate Casting, can be used without processing or machining, saving a lot of metals. In the powder metallurgical process that p

2023-02-08

Graphite acid method

The alkaline acid method includes two reaction processes: alkali melting process and acid immersion process. The alkali melting process is to chemically react with the acidic impurities in the molten and graphite under high temperature conditions under high temperature conditions, especially silicon -containing impurities (such as silicate, silicone aluminate, quartz, etc.) to generate soluble salt, and then Remove impurities after washing and improve the purity of

2023-09-07

Methods and Classification of Mechanical Processing

The processing methods for different types of carbon graphite products are different. In summary, the mechanical processing methods for carbon graphite products include: turning, drilling, planing, grinding, milling, cutting, and others.Car: mainly used for processing circular surfaces, such as the inner and outer circles of the car; In addition, it is used for threading, and can also be used for flat end faces, boring, and cutting. The commonly used machine tool is a lathe, which processes products such as steel making and submerged arc furnace electrodes, mechanical carbon graphite bearings and sealing rings, various small carbon rods, graphite crucibles, and graphite tubes for movies, batteries, and electric arcs.Planing and milling: Mainly used for machining flat surfaces, commonly used machine tools include planing and milling machines. Mainly used for processing graphitized anodes, chemical anode plates and various carbon blocks, hard alloy sintering boats, plates, pallets, meta

2023-02-08

Graphite flotation method

Floating is a commonly used and important mineral method. Graphite has good natural floating. Basically, all graphite can be purified by floating methods. In order to protect graphite scales, most of the graphite flotation uses multiple sections of processes. Graphite flotation collecting agents are generally used for kerosene, with a dosage of 100 to 200g/t. The foaming agent is generally used with pine or butad ether, and the amount is 50 to 250g/t.

The role and use of graphite

Graphite is an allotrope of carbon with various excellent properties, and is therefore widely used in many fields. The following are the main functions and uses of graphite:

What are the quality requirements for graphite electrodes used in DC arc furnaces

The graphite electrode used in DC arc furnaces has no skin effect when current passes through, and the current is evenly distributed on the current cross-section. Compared with AC arc furnaces, the current density passing through the electrode can be appropriately increased. For ultra high power electric furnaces with the same input power, DC electric arc furnaces only use one electrode, with a larger electrode diameter. For example, a 100t AC electric arc furnace uses electrodes with a diameter of 600mm, while a 100t DC electric arc furnace uses electrodes with a diameter of 700mm. Larger DC electric arc furnaces even require electrodes with a diameter of 750-800mm, and the current load is also increasing. Therefore, the following requirements are put forward for the quality of graphite electrodes:(1) The resistivity of the electrode body and joints should be smaller, such as the resistivity of the electrode body dropping to 5 μ Around Ω. m, the resistivity of the joint decreases to

2023-02-08

my country's graphite issues

(1) Graphite mining planning and coordination are not in place

2023-03-14

What are the main expansion graphite equipment?

The difference between expansion graphite and expansion graphite is that expansion graphite is a process of expansion. It has a large volume, and the expansion graphite has no expansion. It has the characteristics of high temperature and rapid expansion. L.Swrite graphite natural graphiteA loose and porous worm -like substance obtained by insertion, water washing, drying, and high temperature puffed. It is one of the expansion graphite production equipment, mainly used for natural grinding processingProcessing link, H/L/MVertical grinding machineIt is a device specializing in graphite, which is very suitable for configuration as expanding graphite equipment.