2023-08-17

Impregnation object and type of impregnating agent

In carbon products, there are several types of products that need to be impregnated:(1) Products with higher density, mechanical strength, and lower resistivity are required. Such as ultra-high power electrodes, various joint blanks, graphite anodes, mechanical carbon products, etc.(2) Impermeable graphite required for chemical equipment. For example, heat exchangers, pumps, chemical pipelines and fittings, sealing rings and sealing rings used on chemical equipment, etc.(3) Products used for producing wear-resistant materials. For example, piston rings, bearings, directional rings, sliding electrical contacts, etc.(4) Products with special requirements. Such as high-density and high-strength graphite.The commonly used impregnating agents include asphalt, synthetic resins, metals, lubricants, inorganic compounds, etc., which can be selected according to the different performance requirements of the impregnating object. When selecting impregnating agents, it is necessary to pay attentio

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

2023-05-30

GS graphite heat dissipation film characteristic advantage

1. Excellent thermal conductivity: The thermal conductivity is as high as 600-1200 W/(M-K) (equivalent to 2 to 4 times the copper, 3 to 6 times the aluminum), 40%lower than aluminum, 20%lower than copper, 20%lower than copper lower than copper2. Light proportion: 1.0-1.9 g/cm3 (density is equivalent to 1/4 to 1/10 of copper, 1/1.3 to 1/3 of aluminum)3. Low thermal resistance, soft and easy to cut (can bend repeatedly)4. Super thinness: thickness (0.025-0.1mm)5. The surface can be combined with other materials such as metal, plastic, non -drying gum to meet more design functions and needs1. Excellent thermal conductivity: The thermal conductivity is as high as 600-1200 W/(M-K) (equivalent to 2 to 4 times the copper, 3 to 6 times the aluminum), 40%lower than aluminum, 20%lower than copper, 20%lower than copper lower than copper2. Light proportion: 1.0-1.9 g/cm3 (density is equivalent to 1/4 to 1/10 of copper, 1/1.3 to 1/3 of aluminum)3. Low thermal resistance, soft and easy to cut (can

2023-12-15

Analysis of the demand for high-purity graphite in China's market

In recent years, data shows that the demand for high-purity graphite in China has been steadily increasing year by year. In 2012, the demand for high-purity graphite in China was 86000 tons. In 2013, the demand for high-purity graphite in China was 97400 tons, a year-on-year increase of 13.24%. In 2014, the demand for high-purity graphite in China was 112000 tons, a year-o

2023-10-10

Graphite crucible with excellent thermal conductivity

1. Thermal stability: Specially designed for the use conditions of graphite crucibles for rapid heating and cooling to ensure the reliability of product quality.2. Corrosion resistance: The uniform and fine substrate design delays the erosion of the crucible.3. Impact resistance: The graphite crucible can withstand extremely high thermal shock strength, so any process treatment can be carried out with confidence.4. Acid resistance: The addition of special materials significantly improves the quality of the crucible, performs excellently in acid resistance indicators, and greatly extends the service life of the graphite crucible.5. High thermal conductivity: The high content of fixed carbon ensures good thermal conductivity, shortens dissolution time, and significantly reduces fuel consumption or other energy consumption.6. Control of metal pollution: Strict control of material composition ensures that the graphite crucible does not contaminate the metal during dissolution.7. Quality s

2023-04-21

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

Will room temperature superconductivity become the next graphene

On July 22nd, a South Korean research team published a paper on the preprint website arXiv, claiming to have synthesized the world's first room temperature and atmospheric pressure superconductor, named LK-99.Superconductivity refers to superconductivity. Under normal temperature and pressure, almost all conductors have resistance, resulting in thermal energy loss during current conduction. Superconductors are materials that can conduct current with zero loss due to the disappearance of resistance, and have complete diamagnetism (internal magnetic induction strength is zero), with advantages such as stability, low loss, and fast transmission.Previously, superconducting materials needed to enter the superconducting state at lower temperatures. The keyword "room temperature superconductivity" mentioned by the Korean team in this paper refers to the phenomenon of superconductivity achieved under room temperature conditions. According to the standards of condensed matter physics

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

2023-03-02

The key features of graphite

1. High fever and conduction: In response to the use of raw materials such as graphite with high thermal conductivity, it reduces the time of fusion.2. High temperature resistance: high -temperature resistance has strong impact characteristics, for rapid cold and hot heat, not easy to crack.3. High temperature resistance: high fire resistance, high temperature to 1200 to 1600 ° C.4. Anti -corrosion resistance: strong adhesion to resist melting soup.5. Anti -reflective impact: have a certain anti -reflective impact resistance (when the funds of the melt material are invested, etc.).6. Antioxidant: Graphite is very easy to oxidize at high temperatures in oxidation. Due to the development of oxidation solution, oxidation consumption is less.7. Anti -adhesion: Because graphite is not easy to stick to the soup, the molten soup is soaked and attached with less adhesion.8. There is very little environmental pollution of metal materials: Because there is no bad matter that infiltrate the envi

2023-08-14

Which raw materials are selected for the production of traditional carbon materials

Various metallurgical furnace carbon blocks (such as blast furnace carbon blocks, ferroalloy furnace carbon blocks, calcium carbide furnace carbon blocks, and aluminum electrolysis cell cathode carbon blocks, etc.) are used at a certain high temperature. Therefore, carbon blocks should have high mechanical strength, thermal stability, and corrosion resistance, but the ash content requirements are not too strict. Except for the bottom carbon blocks used in aluminum electrolysis cells, it is not necessary to measure conductivity. The production of carbon blocks mostly uses anthracite as the aggregate and metallurgical coke as the filling material. To improve the thermal conductivity and corrosion resistance of carbon blocks, a certain amount of graphite fragments (or natural graphite) can be added. In order to improve the thermal conductivity and conductivity of carbon blocks, semi graphite carbon blocks can be produced by electrocalcining anthracite.The raw materials used for conductiv