2023-04-21

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

How to distinguish the advantages and disadvantages of graphite

The first aspect is the flexural strength of the material. The flexural strength of a material is a direct reflection of its strength, indicating the tightness of its internal structure. Materials with high strength have relatively good resistance to loss during discharge. For electrodes with high precision requirements, it is recommended to choose materials with better strength.The second aspect is the Shaw hardness of materials. In the subconscious understanding of graphite, it is generally considered a relatively soft material. But actual test data and application situations show that the hardness of graphite is higher than that of metal materials. In the special graphite industry, the commonly used hardness inspection standard is the Shore hardness measurement methodThe third aspect is the average particle diameter of the material. The smaller the average particle size of the material, the more uniform the discharge of the material, the more stable the discharge condition, and the

2023-10-08

Graphite anode usage

In an electrolytic cell, the current flowing into the electrolyte from this point is called a graphite anode plate. In the electrolysis industry, the anode is generally made into a plate shape, so it is called a graphite anode plate. It is widely used in ferries, wastewater treatment, industrial anti-corrosion equipment, or as a special material.Compared with other materials, graphite anode plates have advantages such as high temperature resistance, good conductivity and thermal conductivity, easy mechanical processing, good chemical stability, acid and alkali corrosion resistance, and low ash content; Used for electrolyzing aqueous solutions, producing chlorine, caustic soda, and electrolyzing salt solutions to produce alkali; For example, graphite anode plates can be used as conductive anodes for electrolysis of salt solution to produce caustic soda. Graphite anode plates can be used as conductive anodes in the electroplating industry, making them an ideal material for various elect

2022-11-23

Analysis of the scope of application of industrial graphite in graphite products

Graphite products maintain the original chemical properties of flake graphite, namely acid resistance, corrosion resistance and physical properties, namely high temperature resistance 3000C and low temperature resistance 204C. Its compressive strength is greater than 800kg/cm2, and it is anti-oxidation. It loses weight in air at 450°C by 1 % , the rebound rate is 15-50% (density 1.1-1.5). It also has strong self-lubricating properties. Therefore, graphite products have been widely used in metallurgy, chemical industry, petrochemical industry, high energy physics, aerospace, electronics and so on.Using the characteristics of graphite, people have deftly made different types of products according to the needs of engineering: such as high-purity graphite products, flexible graphite products, composite graphite products and so on. In order to improve the performance, graphite and fiber (including synthetic fiber), graphite wire, metal mesh, and metal processing plate are combined to make

2023-07-07

The development and application of battery materials

1. Lithium -ion battery materialLithium ion batteries are currently widely used batteries. The positive electrode materials of lithium -ion batteries are usually lithium iron phosphate, lithium manganate, etc., while the negative electrode materials are graphite or silicon -based materials. In recent years, new silicon/graphite composite materials have gradually been applied.2. Calcium ion battery materialCalcium ion batteries have the advantages of low cost and high energy density, and have been studied in recent years. Among them, ingredients, calcium sulfide and other materials are considered to have potential electrode materials that have potential to become calcium ion batteries.3. Fuel cell materialThe fuel cell material refers to the electrodes, electrolytes, catalysts and other materials used to manufacture fuel cells. The important one is the catalyst. In recent years, precious metals have developed rapidly.4. ion ion battery material ion battery is a high -power, long -life

2023-04-19

How is high -carbon graphite made?

High -carbon graphite extraction method, flotation method is one of the most benefit of high -carbon graphite with low energy consumption and reagent loss and lowest cost of energy consumption and reagent loss in mineral purification. However, when the floating method is used, the graphite can only achieve unlimited progress. Regarding scales -shaped graphite, not only will it be unbuttoned to separate it, but it is not conducive to maintaining the large scales of graphite. To obtain high carbon -containing high carbon -based graphite, pure graphite is needed to use chemical method.(1) Pure method of high carbon alkaline acid. The carbon content after the purification of alkaliic acid method can reach more than 99 %. It has the characteristics of less one -time investment, high product grade, and strong process adaptability. It also has strong generality. The purity of non -metal mines can accept the benefits of alkaline acid method. The alkaline acid method is the most common essenti

2023-04-06

Mechanical performance of expansion graphite at different temperatures

Expansion graphite has excellent chemical stability, heat resistance, sealing, self -lubricating, radiation resistance and high heat -conducting. It is widely used in industrial fields such as machinery, oil, chemical, metallurgy, aerospace, navigation, transportation, and transportation. It is an ideal advanced sealing material. The mechanical property of expanded graphite may be different at different temperatures.1. Within the temperature range of 400 degrees Celsius, the compressed elastic modulus, rebound rate, and compression rate of expansion graphite sealing materials are not significantly affected by the temperature, and the impact is not greatly affected.2. There are significant differences in the compression modulus, rebound rate, and compression rate of two samples made of different materials formulas and processes, and there are also appropriate differences in the compression strength.3. Within the temperature range from room temperature to 400 degrees, the pressure resis

2023-05-17

Graphite products and other purposes

Defense industryIn the defense industry, the nozzle of solid fuel rockets is also used to make solid fuel rockets, the nasal cone of the missile, the parts of the universe navigation equipment, the insulation material and the anti -ray material.Anti -anti -rust and anti -rust materialGraphite can prevent boilers from scaling. Tests from relevant units show that adding a certain amount of graphite powder (about use per ton of water) to the water can prevent the surface of the boiler from scaling. In additionWith the continuous development of science and technology, people have also developed many new uses on graphite. Flexible graphite products. Flexible graphite, also known as expansion graphite, is a new graphite product developed in the age. The United States has studied successful flexible graphite sealing materials, solving the problem of atomic energy valve leakage, and then Germany, Japan, and France have also begun to develop and produce. In addition to the characteristics of n

2023-05-19

The formation of KISH graphite

Whether it plays an important role in the growth of KISH graphite or the growth of KISH graphite according to layer -like crystal, oxygen is an important role. Practice has proved that when the co -crystal iron fluid is exposed to the air, the KISH graphite is easy to form; turning the iron solution and the update surface can exacerbate the precipitation of KISH graphite. The action of oxygen is to form SiO2 as the base of KISH graphite nucleus. The temperature of the iron liquid temperature at below 1400 ° C is severe than high temperature because of SiO2, which is unstable above 1400 ° C. The precision phenomenon of KISH graphite cannot be seen in the low Si or Si iron liquid, which shows that the existence of SIO2 has an impact on the formation of KISH graphite that cannot be ignored.The cooling speed is the basic process conditions formed by the formation of KISH graphite when the existence of oxygen (such as hydrogen protection). KISH graphite can only be formed at a lower coolin

2023-05-30

Introduction to carbon elements

Carbon is a very common element that exists in the atmosphere and crust in many forms. Carbon monouples have been recognized and used for a long time. A series of carbon compounds -organic matter is the foundation of life. Carbon is one of the ingredients of raw iron, cooked iron and steel. Carbon can form a large number of compounds in chemical self -combination, which is an important molecule in biology and business. Most molecules in organisms contain carbon.Existing formThe form of carbon existence is diverse, including crystalline single -quality carbon such as diamond and pulse graphite; there are fordless carbon and coal; there are complex organic compounds such as animals and plants; carbonate such as marble. The physical and chemical properties of single carbon depend on its crystal structure. High -hardness diamond and soft and smooth pulse graphite crystal structures are different, each with its own appearance, density, melting point, etc.CharacteristicsThe chemical propert