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

2024-03-13

Application and prospect of graphite materials in high-tech fields

With the rapid development of high-tech fields, graphite materials, as an excellent functional material, are playing an increasingly important role. Its unique physical and chemical properties make graphite in energy, electronics, aerospace and other high-tech fields show broad application prospects.In the field of energy, graphite materials are widely used in the manufacturing of energy storage devices such as batteries and supercapacitors because of their excellent electrical conductivity and chemical stability. Its high energy density and long cycle life make graphite an indispensable key material in the field of new energy.In the field of electronics, graphite is widely used in the manufacture of electronic components and heat dissipation materials because of its excellent electrical and thermal conductivity. At the same time, the transparency and flexibility of graphene films also provide possibilities for the development of flexible electronic devices.In the aerospace field, gra

2023-10-20

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

2023-08-21

Main characteristics of graphite crucible

1. High thermal conductivity: Due to the use of raw materials such as graphite with high thermal conductivity, the melting time is shortened.2. Heat resistance and shock resistance: Strong heat resistance and shock resistance, resistant to cracking during rapid cooling and heating.3. High heat resistance: High fire resistance, capable of withstanding high temperatures ranging from 1200 to 1600 ℃.4. Erosion resistance: Strong resistance to erosion of molten soup.5. Resistance to mechanical impact: Having a certain degree of strength to resist mechanical impact (such as the input of molten materials).6. Oxidation resistance: Graphite is prone to oxidation at high temperatures in oxidation aerosols, and due to oxidation prevention treatment, oxidation consumption is relatively low.7. Anti adhesion: Because graphite has the characteristic of not easily adhering to molten soup, the immersion and adhesion of molten soup are less.

2023-06-05

Modified graphite

A new generation of lithium -ion battery negative materials with good graphite performance and low price1. High graphitization and stable structure.2. High capacity and stable charging and discharge.3. Good reversibility, which can effectively improve the utilization rate of positive and active substances.4. Good cycle stability.5. Good performance, safe and reliable.Modified graphite can be used for lithium -ion battery negative electrodes, ball -type modified graphite can be used as lubricant, and can be made into graphite modified polypropylene plastic, which is used to make zero, pipeboard, head, flang, flang, and take -off. Components (good corrosion resistance; small volume, light weight; high temperature resistance; non -toxicity, no scaling, non -polluting medium, can also be used for the food industry)

2023-11-08

The difference between expanded graphite and graphene

Graphene and expanded graphite exhibit different behaviors in both material structure and application fields. Expanded graphite can be used as a raw material for the production of graphene. For example, the Hummers method can be used to obtain graphene oxide through ultrasonic expansion of graphite oxide. When the expanded graphite is peeled off into a single piece, it becomes graphene. Peeling off into several layers is a few layers of graphene, and graphene nanosheets can be prepared from about ten to thirty layers.Practical application fields of expanded graphite1. Application of Medical MaterialsMedical dressings made of expanded graphite have many excellent properties and can replace most traditional gauze.2. Application of Military MaterialsCrushing expanded graphite into micropowders has strong scattering and absorption properties for infrared waves, making it an excellent infrared shielding material and playing an important role in modern optoelectronic warfare.3. Application

2023-11-01

The Electronic Effect of Graphene

Graphene already exists in nature, but it is difficult to peel off a single layer structure. Graphene is stacked layer by layer to form graphite, with a thickness of 1 millimeter containing approximately 3 million layers of graphene. A pencil lightly scratches on paper, leaving traces that may be several or even just one layer of graphene.The carrier mobility of graphene at room temperature is about 15000 cm2/(V · s), which is more than 10 times that of silicon material and more than twice that of the known material indium antimonide (InSb) with the highest carrier mobility. Under certain specific conditions, such as low temperature, the carrier mobility of graphene can even reach up to 250000 cm2/(V · s). Unlike many materials, the electron mobility of graphene is less affected by temperature changes. At any temperature between 50 and 500K, the electron mobility of single-layer graphene is around 15000 cm2/(V · s).In addition, the semi integer quantum Hall effect of electron carriers

2023-12-11

The Future Market Prospects of Graphite Powder

Insufficient technical investment in domestic graphite powder production enterprises

As a policy of each graphite deep processing production company, it is far from reality. The single product function is not bad, but the stability of batch production is doubtful, and the consistency of each batch of products cannot be guaranteed. A professor of deep processing and production of graphite powder believes that the exchanges of different types of different types of information for the deep processing and production of graphite powder will be a long process. The gap between many companies is that they have excellent experiments but cannot produce in batches. The following editors analyze the reasons for the lack of technical investment in domestic graphite powder production enterprises:It is not related to the automation control of the company's production line, which is a systematic problem. At present, graphite powder deep processing production equipment accounts for more than half of the imported equipment. Graphite mineral resources are a very important strategic reso

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.