2023-11-13

Compared with ordinary graphite powder, ultrafine graphite powder

Compared with ordinary graphite powder, ultrafine graphite powder materials have the characteristics of low melting point, high chemical activity, strong magnetism, good thermal conductivity, and abnormal absorption of electromagnetic waves due to the "volume effect" and "surface effect". In recent years, ultrafine graphite powder has become a cutting-edge research field in interdisciplinary fields such as polymer chemistry, physical chemistry, inorganic chemistry, and materials science.The smaller the particle size of ultrafine graphite powder, the more significant the physical and chemical properties change, and ultrafine graphite powder does not require additives. This opens up broader avenues for the application of high-performance inorganic structural materials. The smaller the diameter of ultrafine graphite powder particles, the larger their total specific surface area, and the corresponding increase in surface energy, resulting in higher chemical activity. This can be used as a

2023-02-22

How to identify the quality of graphite board

The graphite board is not rusty for some manufacturers, but in fact many manufacturers have applied for more than ten years, and they are unclear how to distinguish the quality of graphite boards. This is only a kind of summary of the product, which is very vague.Speaking of how to distinguish the advantages and disadvantages of graphite boards, there is only one key, which is the relative density. The following discusses the necessity of using the Moore quality formula from many levels.The battery electrolyte is very prone to infiltration, resulting in the oxidation of the graphite board air, which is greatly shortened by the use period. The density is high, and the cost of application is increased, so it is important to choose a suitable graphite board manufacturer.2. In the field of resistance, the key to the graphite board is used to pad the method, which has a moisturizing effect. The relative density of the graphite board here is greatly displayed. Very easy to fall, the surface

2023-02-10

Graphite development direction

(1) Renewal of graphite selection and mining technology equipment

The Future Market Prospects of Graphite Powder

What are the key applications of graphite shells?

With the development of science and technology, graphite slowly turns into selected raw materials for mold production with its excellent physics and organic chemical characteristics. Graphite molds are generally used in various industries. Below I take the old iron to take a look at the key use of graphite mold!1. Rare metal forging and semi -continuous forging for graphite moldIn recent years, countries around the world have been marketing and promoting the situation of fusion metal materials and continuously (or semi -continuous) production and manufacturing bars or pipes. China has gradually selected this method at the level of copper, alloy copper, aluminum, aluminum alloy profiles. Artificial synthetic graphite is a continuous forging or semi -continuous forging as a rare metal. Manufacturing practice has proved that because of the selection of graphite mold shells, it has excellent thermal transmission performance (the heat transfer performance decided to condense the condensate

2023-06-14

Expanded graphite, a new multifunctional insulation material

1、 The Development History of Expanded GraphiteThe development of expanded graphite can be traced back to the 1960s, when scientists discovered that graphite can deform regularly within a certain temperature range, and the deformed graphite can remain stable. Subsequently, scientists discovered that under certain conditions, graphite at high temperatures can be used to manufacture various structures, which can be used to support larger weights, thus developing the technology of expanded graphite.2、 The use of expanded graphiteExpanded graphite has a wide range of uses and can be used to manufacture various structures, such as bridges, buildings, etc. In addition, expanded graphite can also be used to manufacture electronic products, such as chips, printed circuit boards, etc. In addition, expanded graphite can also be used in space technology, such as spacecraft and space stations.3、 Steps for using expanded graphiteFirstly, it is necessary to determine the temperature of expanded gra

2023-04-13

High pure graphite characteristics and application

High pure graphic refers to the carbon content of graphite greater than 99.99 %, and high pure graphite has the advantages of high strength, high density, high purity, good shock resistance, high temperature resistance, anti -oxidation, small resistance coefficient, corrosion resistance, and precision processing. It is an ideal inorganic non -metal material. It is used to process and make electric heating elements, electro -spark processing graphite, sintering molds, electronic tube anode, etc., which are widely used in the metallurgical industry's high -grade refractory materials and coatings Light industry's pencil core, carbon brush of electrical industry, electrode of the battery industry, and catalyst additives of the fertilizer industry, etc., high pure graphite can be produced, and can also produce graphite, graphite sealing materials and composite materials, graphite products, graphite reduction reduction reduction High -tech products such as additives have become an important

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

2023-05-10

Factors affecting scales graphite oxidation

Scale graphite has strong heat resistance and good corrosion resistance. It is the main carbon raw material used by carbon -resistant refractory materials, but it will have an oxidation reaction with oxygen at high temperature at high temperature. The following editor introduces the factors that affect the oxidation of scales. The specifics are as follows:1. Carbon oxidation responseHeating graphite in the air, carbon can be directly oxidized by O2 to CO and CO2. When carbon oxidation, CO and CO2 hybrid gases are generated. At low temperatures, it is mainly to balance CO2 and solid graphite. Solid graphite balance. At more than 1000 ° C, almost all of the mixed gas is CO. The oxidation response speed of graphite decreases with the total pressure of the system, but it increases with the rise of temperature.2. The effect of granularity on oxidation temperatureWith the increase of granularity, the temperature of the graphite's significant oxidation starts and the temperature of the oxida

2023-09-05

How is the steelmaking electric arc furnace equipped with graphite electrodes?

Ordinary power electric furnaces are equipped with ordinary power graphite electrodes, high-power electric furnaces are equipped with high-power graphite electrodes, and ultra-high power electric furnaces are equipped with ultra-high power graphite electrodes.For AC steelmaking arc furnaces,The 10-30t electric furnace is equipped with graphite electrodes with a diameter of 300-400mm,30-50t electric furnace equipped with 450mm diameter graphite electrode,60-80t electric furnace equipped with 500mm diameter graphite electrode,100-170t electric furnace is equipped with graphite electrodes with a diameter of 550-600mm,The 200t electric furnace is equipped with graphite electrodes with a diameter of 600-700mm,250-300t electric furnace is equipped with 700mm diameter graphite electrodes.For DC steelmaking arc furnaces,30t electric furnace equipped with 450mm diameter graphite electrode,A 60t electric furnace is equipped with a 500mm diameter graphite electrode,70-80t electric furnace equipp