2023-04-21

What should be paid attention to when processing refractory materials with flake graphite?

The application of scales graphite in the coating industry

The functional fillers of scales are mainly used for anti -corrosion coatings, fireproof coatings and conductive coatings.As an anticorrosive material, it has a good rust -proof primer made of charcoal black, talc powder and oil. It has good chemical resistance and solvent corrosion performance. If you add chemical pigments such as zinc yellow to the formula, its rust -proof effect is better. EssenceIt is used as a fireproof filler. It is expandable graphite. It is a graphite intervertebral compound obtained by natural graphite scales. 300 times) suffocating the flame, and at the same time, the expansion material is generated to achieve the effect of isolation of the flame, delay or interrupting the flame spread, and it is not burning, soft, high on the surface, and good coach layer. However, the volume and dosage of the expansion body should be appropriate. Tests show that 150um particles, 30%expansion multiple, and 5%of the amount are the most suitable.Scales graphite can be directl

2023-04-20

Electronic effect of graphene

Related information about scales graphite?

Nowadays, there are still many people who do not understand some basic information of scales graphite, so as a manufacturer, it is also necessary for us to explain it briefly. In fact, the scales graphite is a natural crystal graphite, which is like fish phosphorus. , With a layered structure. Now it is also a natural solid lubricant with a layered structure with rich resources and low prices. This product has the characteristics of complete crystallization, good plate toughness, excellent physical chemical properties, heat conduction, conductivity, anti -thermal shock, corrosion resistance, etc. It is widely used in the refractory materials and coatings of the metallurgical industry. Fireworks stabilizers in the military industry, desulfurization promoters in the smelting industry, pencil cores in the light industry, carbon brushes in the electrical industry, electrodes in the battery industry, and catalysts in the fertilizer industry. This scale graphite can be further processed to

2023-09-08

The densification process of carbon graphite materials

With the continuous expansion of the application field of graphite materials, more and higher requirements have been put forward for it. Therefore, it is necessary to introduce new supplementary process methods in industrial production to facilitate the acquisition of products with special properties that cannot be obtained using ordinary methods. This process method is the compaction of carbon graphite materials.Carbon graphite material is a porous material, with a densification process that involves filling the pores or coating surface of carbon graphite material with different forms of carbon, metal, alloy, or other non-metallic substances. The purpose of densification process is mainly to improve the density, strength, conductivity, thermal conductivity, corrosion resistance, and wear resistance of the product, and sometimes to ensure that the product is impermeable to gases and liquids. However, there is a limit to compaction, and it is not possible to require all the pores in th

2023-03-22

What are the causes of quenching cracks in high -strength graphite molds?

1. When the graphite mold is repaired and quenched, heating and quenching without annealing in the middle; 2. Excessive heating temperature for quenching is overheated or burned; 3. There are mechanical processing or cold plastic deformation stress in graphite mold; 4. There are severe mesh carbides in the material; 5. After quenching, the fire is not timely or the insulation time is insufficient; 6. Improper heat treatment operation of graphite mold. If heated or cooling is too fast, improper selection of quenching and cooling medium, low cooling temperature, too long cooling time, etc.; 7. When the graphite mold heats is processed by electric sparks, there are high stress stress and micro -cracks in the hardening layer; 8. The graphite mold is heat -treated and the grinding process is improper. 9. The shape of graphite mold is complex, unevenly thick, with sharp corners and thread holes, which make the heat stress and tissue stress too

2023-05-15

How to extract high -carbon graphite

The high -carbon graphite extraction method and the flotation method is low in the purity of minerals and the loss of reagents. This is the advantage of purifying high -carbon graphite. However, the application of floating and purifying graphite can only make the graphics of graphite unlimited improvement. For sheet -shaped graphite, not only can not solve its complete monomer, but it is not conducive to maintaining large hungusgogi. High carbon graphite must be chemically purified for graphite.(1) Pure method of high carbon alkali acidic acid. The carbon content purified by alkaline is more than 99%of the carbon content, which has the characteristics of less one -time investment, high product grade, and strong process adaptability. It also has a strong generality. The purity of non-metal minerals can use the advantages of alkali-acid method, and the alkali-acid method is the most commonly used method in my country today.(2) High -carbon graphite chloride and roasting method. The chlo

2023-04-19

Causes of inflated graphite powder

1. The purity of the selection of raw materials for the selection of nuclear high pure graphite is the same as the prerequisite for production, and it is related to the ash component of the raw materials selected by the production. The civilian type can expand graphite products that are that regularity: raw materials are ash, and their products are also large. Therefore, the oil coke ash selected by the production nuclear high -pure graphite specifies the mouth. 15%of the following, although the boron component proposes the requirements, it will be analyzed, and the specific data information will be 0.5pp. the following. Results The total ash was divided into 5 PPMs, and the boron components were mouth. LPPM up and down, the section of the hot neutron absorption is 3.8, 94 mubes. 2. High temperature adjustment treatment and other halogen to solve the temperature of the temperature when the graphitization of the product, and whether it carried out another halogen solution, which is a f

2023-08-28

The purpose of graphite machining

Various carbon graphite products, although they have a certain shape and size after forming, undergo expansion and contraction, deformation and bending, collision or corner dropping during the process of roasting, impregnation, and graphitization treatment from the pressed blank to the graphitized blank. The surface adheres to some fillers and insulation materials, resulting in roughness and unevenness. Their shape and size change to a certain extent, and they cannot achieve the shape of the product during use, Due to strict requirements for size and surface roughness, it cannot be used without mechanical processing. In addition, some products have complex structures and shapes that cannot be directly produced by forming methods, such as metal continuous casting and rolling graphite crystallizers, electric spark machining graphite molds, carbide sintering graphite boats, discs, and other special graphite products. Some products require interconnection when used, such as the connection

2023-07-27

The technical requirements for refractory materials for scales graphite

Scales graphite has a strong heat shock resistance and good corrosion resistance. It is the main carbon raw material used in carbon resistance materials. It has an important effect on the corrosion resistance and high temperature intensity of carbon bricks such as magnesium carbon bricks. Essence In the actual production process, carbon -combined refractory materials have strict requirements for the purity, gray, particle size, shape and addition of scales graphite.A large number of studies have shown that the purity of graphite is directly related to the high temperature resistance strength of magnesium carbon bricks and the melting loss rate in use. The high temperature resistance of magnesium carbon bricks increases with the increase of graphite purity, which is the result of different micro -structures of magnesium carbon bricks. Magnetic carbon bricks made of lower -purity graphite have a larger thick pore and higher pore rate than high -pure graphite, which may be related to the