2023-10-31

How to achieve the flame retardant effect of expanded graphite

How to achieve the flame retardant effect of expanded graphite? The good physical and chemical structure of expanded graphite is widely used in industry. There are many applications that use the flame retardancy of expanded graphite, which has a good flame retardant effect. How can the effect be achieved? Today, the editor will explain how the flame retardant effect of expanded graphite can be achieved:1. Expanded graphite can generate many lightweight refractory carbon layers in fires, effectively isolating the radiation source of heat value onto the substrate and maintaining the substrate.2. Expanded graphite is an excellent conductor, and the prepared coating can avoid the accumulation of static charges, prevent fire, and prevent static electricity.3. Adding expanded graphite to coating materials can obtain flame-retardant and anti-static coatings, improving resistance to heat and fire characteristics.Starting from thermodynamic and surface chemistry issues, the adsorption mechanis

2023-05-17

Graphite Product Materials advantage

Graphite products (including graphite rods, graphite products, graphite blocks, graphite boards, graphite carbon pipes, graphite rings) are important strategic resources. Graphite is a degeneration of carbon substances, which is most common in Dali, sliced rocks, or hemp rocks. The coal seam can form graphite through the thermal deterioration, while a small amount of graphite is a native mineral of fire rock.The industrial graphite ore is divided into two categories: crystal (scale) graphite ore and steady crystal (earth -shaped) graphite ore. Crystal graphite ore can be divided into two types: scale -like and dense. Chinese graphite ore is the type of scales -like crystal, followed by hidden crystal type, and dense crystal graphite is only seen in individual mining plants such as Tocobra, Xinjiang.Due to its special structure, graphite products are resistant to high temperature resistance, heat shock resistance, conductivity, lubrication, chemical stability, and plasticity. Important

2023-02-21

What are the advantages of high -purity graphite products

What are the advantages of high -purity graphite products? High -purity graphite has the characteristics of graphite that has undergone unique production and processing, and has the characteristics of anti -corrosion, good heat transfer, and poor possession. Several advantages of high -purity graphite products:1. heat resistance: The solution point of the graphite is 3850 ± 50 ° C, and the melting point is 4250 ° C. Even if the high temperature and high voltage and electricity are burned, the net damage is not large, and the line expansion coefficient is not large. Graphite's compressive strength increases with the temperature, and the graphite compressive strength is doubled at 2000 ° C. The chemical change temperature of the heat release reaction welding at the construction of the heat control welding project is very high, so that the raw materials of the welding mold application must be heat -resistant.2. Conductivity and heat transfer: The conductivity of high -purity graphite is

2023-04-21

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

The Use of Spherical Graphite in Graphite Powder

Spherical graphite is widely used due to its excellent conductivity, which is related to the use of graphite powder. Graphite products have been widely used in many domestic and foreign enterprises and have received widespread praise in the market. Graphite is widely used in the electrical and electronic industry as an electrode, positive electrode for rectifiers, graphite gasket, coating technology for telephone components, television picture tubes, and so on. Research on wear-resistant and lubricating system materials: Graphite is often used as a lubricant in mechanical development industrial enterprises. Graphite electrodes can be widely used in smelting and various alloy steel and iron alloys. At this time, our strong current can be introduced into the melting zone of the electric furnace through the working electrode.Spherical graphite has a wide range of applications in our daily lives regarding the use of graphite powder. What are its characteristics?1. High temperature resista

2023-10-09

Application characteristics and advantages of self-lubricating bearings

1. Good wear resistance, low friction coefficient, and long service life.2. Having an appropriate amount of elasticity and plasticity can distribute stress over a wider contact surface, improving the bearing capacity.3. It can reduce vibration, reduce noise, prevent pollution, and improve labor conditions for machinery.4. During operation, a transfer film can be formed to protect the grinding shaft without any biting phenomenon.5. The hardness requirements for grinding shafts are low, and shafts that have not been quenched and tempered can be used, thereby reducing the difficulty of machining related parts.6. Thin walled structure, lightweight, can reduce mechanical volume.7. At present, it has been widely used in various sliding parts of machinery, such as printing machines, textile machines, tobacco machinery, micro motors, automobiles, motorcycles, and agricultural and forestry machinery.

2024-04-18

The Mysteries of Graphite

Graphite, a seemingly ordinary mineral, contains endless mysteries. Its unique molecular structure gives it excellent conductivity and high temperature resistance. At high temperatures, graphite can still maintain its stable properties, which makes it widely used in high-temperature metallurgy, aerospace and other fields.Moreover, graphite is also a rare lubricating material. Its delicate texture and extremely low friction coefficient make it widely used in lubrication systems in industries such as machinery and automobiles. The lubrication performance of graphite not only improves the operating efficiency of mechanical equipment, but also extends the service life of the equipment.The mystery of graphite lies in its environmental friendliness. As a natural mineral, graphite has a relatively small impact on the environment during mining and use. Meanwhile, the renewable nature of graphite also makes it a sustainable resource for development. In future development, graphite is expected

2023-12-13

What are the reasons for the low initial efficiency of lithium carbide graphite negative electrodes

1. Low specific surface area: As you mentioned, the specific surface area of waste graphite is usually low, which leads to a decrease in the contact area between the electrolyte and graphite, affecting ion insertion and extraction during the initial charge and discharge process, thereby reducing the initial Coulombic efficiency. Compaction and coating treatment can increas

2022-11-23

What are the ways to improve the service life of graphite molds?

Graphite molds should be produced and processed by cutting methods to improve the smoothness of the graphite mold surface and reduce the degree of adhesion between the molten metal and high-purity graphite. The composition of the carcass powder is one of the factors that cause the metal plastic film to stick to the high-purity graphite. Because iron is a strong carburizing agent, if the carcass is iron-based, there will be obvious reaction and melting between the carcass and the abrasive tool, causing the carcass melt to stick to the high-purity graphite and destroying the graphite mold. It is suggested that when calcining the iron-based carcass, a strong release agent should be brushed on the surface of the blade and the abrasive tool to reduce the adhesion of the abrasive tool during mold unloading, reduce the degree of damage, and increase the service life of the abrasive tool.2. The fracturing damage of the grinding tool is also related to the resistance of the graphite materia

2022-11-22

Do you know the development history of graphite?

Graphite occupies an important position in the industry, and because of its good performance, graphite is widely used in many industries, and its use effect is good, so it is loved by users. Some basic knowledge of graphite must be known to everyone. The following is the development history of graphite. Presumably very few people know this. So today, let us take a closer look. The following is the introduction made by graphite manufacturers.Graphite is a kind of carbide accidentally discovered in the laboratory by Acheson of the United States in 1891 when he was conducting molten diamond experiments. At that time, it was mistaken for a mixture of diamonds, so it was named emery. The industrial method of smelting graphite, also known as the Acheson furnace, is still in use today. The electric resistance furnace with carbonaceous material as the furnace core generates graphite by heating the mixture of quartz SIO2 and carbon.Several events about graphiteGraphite was first discovered in