2023-09-04

How are graphite electrodes consumed in electric furnace steelmaking?

The consumption of graphite electrodes is mainly related to the quality of the electrodes themselves, as well as to steelmaking operations and processes.(1) Electrode end consumption. Its consumption includes the sublimation of graphite material caused by high arc temperature, as well as the loss of chemical reactions between the electrode end and molten steel and slag. The electrode end consumption is also related to whether the electrode is inserted into the molten steel to increase.(2) Oxidation loss on the outer surface of the electrode. In recent years, in order to improve the smelting rate of electric furnaces, oxygen blowing has been widely used, which has led to an increase in electrode oxidation losses. In general, the oxidation loss on the outer circular surface of the electrode accounts for about 50% of the total electrode consumption.(3) Residual loss of electrodes or connectors. A small section of electrode or connector that is continuously used at the connection between

2023-05-29

Pulse graphite

As early as the 1930s, China Heilongjiang Jixi Liu Mao and Shandong South Villa Genti Mine began production and processing of pulse graphite. At that time, the mining process was simple, the workers had poor labor conditions, the productivity was extremely low, and the annual output was only thousands of tons. After decades of development, the output of mulberry graphite and carbon products in my country has risen rapidly. From 2004 to 2011, the compound annual growth rate of pulse graphite and carbon products reached 22.12%. In 2011, the output of my country's pulse graphics and carbon products was 25.5617 million tons, an increase of 21.98%year -on -year.Pulse graphite and carbon products have excellent performance, which are increasingly widely used, and production capacity and efficiency are growing rapidly. In 2011, the Chinese pulse graphite and the carbon products industry developed rapidly, and the industry in the industry had high management and control capabilities in cost a

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 Artistic charm of graphite: the evolution from traditional craft to modern design

Graphite, this mineral with black as the main color, is not only widely used in industry and science and technology, but also shows a unique charm in the field of art.In traditional crafts, graphite is skillfully used in art forms such as painting and sculpture. The fine texture and easy coloring of graphite allow artists to create works with rich layers and full colors. At the same time, the hardness and wear resistance of graphite also make it an ideal material for engraving, which can be carved into fine patterns and textures.With the continuous development of modern design concepts, the application of graphite in the field of art is also constantly innovative. Designers take advantage of the unique color and texture of graphite and incorporate it into modern homes, decorations and artwork to create a distinctive visual effect. The simplicity and elegance of graphite inject new inspiration and vitality into modern design.In addition, graphite is also combined with many traditional

2024-03-12

Graphite: the "black gold" mystery of natural minerals

Graphite, this seemingly ordinary black mineral, actually contains endless mystery and value. As the "black gold" in natural minerals, graphite plays an irreplaceable role in many fields with its unique physical and chemical properties.Graphite has excellent electrical conductivity, thermal conductivity and chemical stability, which makes it widely used in electronics, metallurgy, chemical industry and other industries. At the same time, graphite is also an important raw material for the manufacture of pencil leads, lubricants and refractories. Its unique layered structure makes graphite also have broad application prospects in the field of energy storage.However, the mining and processing of graphite is not easy. Because of its low hardness, fragile and dust is easy to fly, it puts forward high requirements for mining technology and environmental protection. At the same time, with the continuous progress of science and technology, people's performance requirements for graphite are be

2023-08-09

Types, properties, and uses of mechanical carbon graphite products

Mechanical carbon graphite products are carbon graphite materials used as structural components in various machinery, including various graphite bearings, graphite sealing rings, graphite piston rings, graphite sliding plates, and graphite brake friction plates.According to different production processes, mechanical carbon graphite products are mainly divided into 7 categories: (1) carbon graphite; (2) Electrochemical graphite; (3) Resin impregnated carbon and electrochemical graphite; (4) Carbon and electrical graphite impregnated with metal; (5) Carbon graphite material with resin as binder; (6) Metal - graphite material; (7) Flexible graphite material.Mechanical carbon graphite products can work in corrosive media within the temperature range of -200~2000 ℃ and operate normally without lubricating oil at high motion rates. They have self-lubrication, good wear reduction performance, high thermal conductivity and heat shock resistance, low linear expansion coefficient, and good mech

2023-02-22

What are the characteristics of graphite board?

The use of graphite board is so common, so what characteristics does it have?1. Easy process performance of graphite board: graphite board can be cut into different sizes, appearances, and thin thickness. It can give the membrane cutting plane board, which can be thinned from 0.05 to 1.5m.2. The heat resistance of graphite board: The temperature of the graphite board can reach 400 ° C, which can be less than -40 ° C.3. High -transmission thermality of graphite board: The thermal conduction rate in the plane map of the graphite board can achieve 1500W/mk, the heat transfer coefficient is 40%lower than the aluminum, 20%lower than the copper.4. The coordination ability of graphite board: The graphite board is very easy to make a multi -layer board with metal materials, cable shestages or double -sided tape to enhance the coordination ability of the design scheme and can have adhesives behind it.5. The lightness of graphite board: graphite board is 30%lighter than the same specifications,

2023-03-28

The main characteristics of artificial graphite

Crystal structure

Graphite crucibles have good thermal conductivity and high temperature resistance

Graphite crucibles have good thermal conductivity and high temperature resistance. During high-temperature use, their coefficient of thermal expansion is small, and they have certain strain resistance for rapid heating and cooling. Strong corrosion resistance to acid and alkaline solutions, with excellent chemical stability.But the following points should be noted:1. To avoid damage to the graphite crucible caused by impact or falling from a height. Be careful when using, handle with care, and take a look at the surrounding environment.2. The graphite crucible must be strictly protected from moisture and must be stored in a dry place or on a wooden frame.3. Prevent strong corrosive flames from directly spraying the sides and bottom of the crucible.4. Before use, it is necessary to heat bake and dry

2023-07-31

The results of graphene composite materials in the field of aluminum alloy corrosion protection

Graphene is a flat film composed of carbon atoms. It has only one carbon atom and is almost completely transparent. The graphene composite material has the characteristics of high strength, good toughness, excellent conducting thermal and thermal performance. Environmental purification and other fields have broad application prospects.Due to its large reserves, high strength, and good processability, aluminum alloy has been widely used in modern industries, military aerospace and civilian fields. loss. Therefore, it is important to do the anti -corrosion work of aluminum alloy materials.In this project, the composite of gallery oxide participating in self -made water -soluble nano -coating materials and rare earth passivation has a significant promotion effect on aluminum alloy anticorrosion. Among them, graphene alleviates environmental pollution caused by organic emissions, improves the coatings itself. Anti -environmental aging ability, rare earth replace toxic hexavalent chromium,