2023-05-25

Graphite pad type

Flexible graphite pads are cut from flexible graphite thin slices (or metal enhanced). They are divided into four types according to the needs of the application:1. Flexible graphite pads: cut from flexible graphite thin slices for pipeline flange and valve cover. It is recommended that this kind of pads are small diameter pads, depending on its low mechanical strength.2. Flexible graphite pad MI: The carbon steel sheet with hooks (0.2 mm thick) is sandwiched in the middle by flexible graphite thin slices, and then cut into a specific size. The mechanical strength is high.3. Flexible graphite pad PM: Flexible graphite thin slices are attached to the two sides of the 0.2 mm thick 304 stainless steel sheet. It has a high mechanical strength and is easy to transport. Because it can also be cut into a complex shape, this kind of pad film can be cut. Widely applied to various industries.4. Flexible graphite pad PM-A: Replace the stainless steel slices in T/#1215 to 316 steel (50 microns),

2024-04-16

Mining and processing of graphite: Technological advances and environmental challenges

The mining and processing of graphite is a complex and delicate process involving multiple technical links and environmental challenges. As the global demand for graphite resources continues to grow, mining and processing technology is also improving, but at the same time, it also needs to face increasingly severe environmental problems.In terms of mining, with the progress of geological exploration technology, people can more accurately locate the location and scale of graphite deposits, and improve mining efficiency. At the same time, the application of mechanization, automation and other technologies has also reduced mining costs and improved production safety. However, the waste rock, waste water and other wastes generated in the mining process have caused a lot of pressure on the environment, and effective treatment measures need to be taken.In terms of processing, the purification, crushing, molding and other processes of graphite are also constantly optimized. The new purificat

2023-08-25

Factors affecting the gasification reaction of carbon materials

(1) Degree of graphitization: As the degree of graphitization of carbon materials increases, their activity towards gases decreases. The higher the final heat treatment temperature of carbon materials, the higher the temperature at which they begin to oxidize, so graphite products have a higher starting oxidation temperature than carbon products.(2) Structural state: Carbon materials with loose and porous surfaces are prone to react with gases. For example, the surface dense pyrolytic graphite treated at 3200 ℃ begins to oxidize in air at a temperature of 850 ℃, while the porous and loose charcoal on the surface begins to burn at 360 ℃.(3) Catalytic effect of impurities: Carbon materials contain impurities that have a significant impact on their gasification reaction, with varying catalytic effects. For example, iron, cobalt, nickel, copper, manganese, etc. are catalysts for the oxidation of carbon materials, while impurities such as boron, titanium, and tungsten have inhibitory effec

2023-10-26

Graphite electrode materials have the following six advantages

1、 Fast speed;Graphite discharge is 2-3 times faster than copper, and the material is not easily deformed. It has obvious advantages in the processing of thin ribbed electrodes. Copper has a softening point of around 1000 degrees, which is prone to deformation due to heating. The sublimation temperature of graphite is around 3650 degrees, and compared to copper, the thermal expansion coefficient of graphite material is only 1/30 of that of copper material;2、 Lightweight;The density of graphite is only 1/5 of that of copper. When using large electrodes for discharge machining, it can effectively reduce the burden on machine tools (EDM) and is more suitable for the application of large molds;3、 Low loss;Due to the presence of C atoms in spark oil, during discharge machining, high temperatures cause the C atoms in spark oil to decompose, forming a protective film on the surface of the graphite electrode, compensating for the loss of the graphite electrode;4、 No burrs;After the copper ele

2023-03-07

Introduce the asphalt rubber pendant penetration processing process of graphite board

The general operating process of graphite immersion is after being loaded into the product, first vacuum packaging (gas in the gas in the pores in the pores of the product) and then put it in the impregnation agent to submerge the product, then pressure it to the liquid level, so that Essence It is used for different intentions, and the standards of impregnation agent processing process are not thorough. Below, I will introduce the asphalt rubber mud impregnation processing process of graphite board in detail.The whole process of processing the processing technology of asphalt rubber -soaking small graphite board, electrode connector and its graphite anode board:First of all, the semi-finished processing surface of the graphite board was burn, and then put it into the product box and put it in the temperature of about 4 hours in the temperature of about 240-Soot. After the heat, the product is quickly installed into the impregnation tank with the iron frame (the immersion can be heate

2023-11-10

Advantages and disadvantages of graphite purification methods

Flotation method is one of the conventional mineral purification methods that consumes the least energy and reagents, and has the lowest cost. This is the biggest advantage of flotation method for purifying graphite. However, using flotation to purify graphite can only achieve a limited increase in its grade. For flake graphite, using multi-stage grinding not only cannot completely dissociate its monomer, but also is not conducive to protecting the large scale of graphite. Therefore, using flotation to further improve graphite grade is neither economical nor scientific. To obtain high carbon graphite with a carbon content of over 99%, chemical methods must be used to purify the graphite.(1) Alkali acid purification method. The carbon content of graphite purified by alkaline acid method can reach over 99%, which has the characteristics of low one-time investment, high product grade, and strong process adaptability. Moreover, it also has the advantages of conventional equipment and stro

2023-08-09

Types and uses of carbon solid raw materials

Carbon graphite material is a granular structure material made from various raw materials with different particle sizes, through the addition of binders, kneading, forming, roasting, and graphitization. Therefore, the performance of materials is not only related to the particle size, type and dosage of binders, as well as process control and operation during the production process, but also to the type and performance of the raw materials themselves.There are many solid raw materials used in the production of carbon graphite materials, such as ordinary petroleum coke, needle shaped petroleum coke, asphalt coke, artificial graphite, natural graphite, carbon black, anthracite, metallurgical coke, charcoal, sugar charcoal, bone charcoal, and so on; For electrochar products, there are also metal powders such as copper, silver, tin, lead, and artificial resins; For mechanical carbon and furnace lining materials, as well as silicon carbide, carbon dioxide, and patterned clay; For carbon fib

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.

Precautions for using scales graphite?

Scales graphite is a product that is widely used in refractory materials and coatings in the metallurgical industry. Such as magnesium carbon bricks,。, etc. Now used as anticorrosive materials. Scales graphite is a rust -proof primer made of charcoal black, talc powder and oil, which has good chemical resistance and solvents. If you add chemical pigments such as zinc yellow to the formula, the rust -proof effect is better. During use, thermal shock resistance is strong and has good corrosion resistance. It is the main carbon raw material used in conjunction with refractory materials. It has an important impact on the brushing and high temperature intensity of carbon -binding materials such as magnesium carbon bricks. In the actual production process, carbon -combined refractory materials have strict requirements for the purity, gray, particle size and shape of the scales graphite. The structure and function of its high -temperature firing now depends to a large extent on the moisture

2023-07-11

The price of graphite powder of graphite manufacturers is more cost -effective

Graphite manufacturers' colloidal graphite powder has a good lubrication performance, high cost -effectiveness, and catalytic reaction characteristics. It is very durable at the same time. It can be made into various products. Collagen graphite powder is commonly used as lead -acid batteries, conductive plates, high -capacity lithium battery positive and negative polar conductors, and thermal lubricating solution raw materials.The corporates of colloidal galgin powder of graphite manufacturers are often used below:1. Good moisturizing characteristics, commonly used as agricultural and animal husbandry organic fertilizer metal catalyst production process in the production process of the production process.2. It can withstand a high temperature of thousands of degrees, and is often used to resist thermal lubricating solution raw materials and anti -corrosion lubricating solution raw materials.3. Powder -unsurgical decrease agent and metal alloy raw materials, lubricating solution in cab