2023-05-10

The application of scales graphite in LED lights

Scales graphite is used in various industries, and scales can also be applied to LED lights. The following editors will explain the application of scales in LED lights in detail in detail.The poor heat dissipation of LED lamps will cause problems such as power damage, acceleration of light decay, and shortening life. It is always top priority to improve the performance of the LED lighting system. It is difficult for metal materials to be treated in LED heat dissipation applications. Multi -problems such as conductivity, easy deformation, and difficulty recycling waste.This problem will not occur in graphite materials. The scales have good plastic plasticity, easy to process, and have excellent high temperature resistance and thermal conductivity. They can be processed into graphite heat sinks. The heat will be absorbed by graphite heat sink Graphite can also be combined with plastic to make cooling lamps, heat dissipation and heat sink cups and heat dissipation shells.The heat dissipa

2023-04-03

The shortcomings and prevention of graphite mold heat treatment process

Ballical graphite price about the use of graphite

1. The price of spherical graphite about graphite is: including bricks, disasters, disaster, linked powder, mold, mold and refractory material detergent. Two important changes in the refractory material industry are the application of magnesium carbon bricks in the application of steelmaking furnace lining and aluminum charcoal brick in the continuous casting. Graphite refractory materials, steel and other industries have close connections. Magnesium MGO-C in the world has been widely used for steelmaking and has become the traditional use of graphite. Aluminum carbon bricks are mainly used for continuous casting carbon resistance materials, and the flat flats are protected from plate blanking from pipelines and underwater nozzles. Ferry -resistant materials and related products produced by graphite and related products, such as 坩埚, distilled and similar plug nozzles, are also stable by metal penetration and erosion. Graphite products are widely used in the process of directly related

2023-08-10

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

2023-05-17

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

2023-08-21

The main production process of graphite electrodes

(1) Calcination. Both petroleum coke and asphalt coke need to be calcined at a temperature of 1350 ℃ to fully remove the volatile matter contained in the carbonaceous raw material and improve the true density, mechanical strength, and conductivity of the coke.(2) Crushing, screening, and batching. Crush and screen the calcined carbon raw materials into designated size aggregate particles, grind some coke into fine powder, weigh according to the formula, and aggregate to form a dry mixture of various particles.(3) Mix and knead. Mix and knead the dry mixture of various particles with a certain amount of binder in a heating state to form a plastic paste.(4) Forming. Under external pressure (extrusion molding) or high-frequency vibration (vibration molding), the paste is pressed into a certain shape and high density of raw electrodes.(5) Roasting. Place the raw electrode in a specially designed roasting furnace, and use metallurgical coke powder to fill and cover the raw electrode. At a

2023-04-25

Pure method of high -carbon graphite

The flotation method is a type of energy consumption and reagent consumption and low cost in the conventional purification method of minerals. This is the advantage of the floating method purification method. For scales -shaped graphite, multi -segment mills cannot be completely unbuttoned, but they are not conducive to protecting large scales of graphite. Therefore, the use of flotal methods to further improve the graphite taste. High carbon graphite containing more than 99%of carbon must use chemical methods to use graphite.(1) Pure method of alkaline acid. The carbon content after the purity method of alkaline acid method can reach more than 99%, which has the characteristics of less one -time investment, high product quality, and strong process adaptability. The purity of metal mines can adopt the advantages of alkaline acid method). The alkaline acid method is a wide range of methods in my country today; its disadvantages are large energy consumption, long response time, large gr

2024-04-23

Graphite, the imprint of time

Graphite is a mineral that has undergone the baptism of time. With its unique black color, it tells the story of billions of years. Each piece of graphite is like a heavy history book, recording the changes of the Earth and the traces of time. It witnesses the ups and downs of mountains and rivers, the rushing of rivers, as well as the proliferation of life and the rise of civilization.Graphite is not only a witness to history, but also a inheritor of civilization. From ancient writing tools to modern industrial materials, graphite has always accompanied the progress of human civilization. It provides endless convenience for people's production and life with its stable performance and excellent quality.Graphite is the imprint of time and the crystallization of human wisdom. It makes us feel the wonder and greatness of nature, and also makes us cherish and cherish this land more.

2023-05-19

Granular graphite

1. Refractory material: use graphite, smelting colors, special steel and other valuable metals such as graphite, smelting colors, special steel, etc. in the metallurgical industry, as a magnesium carbon brick in the steel refining furnace; in addition, it is also used as a steel insulation, protective residue and steel bag covering agent.2. Conductive material: Graphite can be used as electrodes, brushes, electrical rods, carbon pipes, and visual tube coatings on the electrical industry.3. Abrasion -resistant materials and lubricants: It can be used for wear -resistant and lubricating materials in the mechanical industry. For example, graphite can slide at a speed of 100m/s at a temperature range of -200-2000 ° C, without lubricating oil. Graphite lubricants include oil agents, water, powder colloidal graphite, graphite lubricating fat, graphite root roots, etc.4. Sealing materials: Use flexible or expanded graphite as lyric axes, water turbines, gas turbines, and piston ring cushions

2023-05-24

Cast iron graphite

The formation process of graphite in cast iron is called graphization process. The basic process formed by cast iron tissue is the formation of graphite in cast iron.The graphite type and size of the gray cast iron depends on the graphite branches and growth rate in the common crystal group. When the common crystal group stops growing, the graphite will stop. They are separated and not connected. Using scanning electron microscope to observe the complete graphite in the common crystal groupThe three -dimensional form indicates that they are connected to each other. Only on the gold phase grinding surface is isolated.The national standard has the following divisions of the graphics of cast iron graphite: type A fine sheet, B -shaped flower shape, C -shaped thick blockbuster, D -shaped dot, E has directional points, f spider -like or planetary. The longest (100 times, greater than 100mm is 100mm. It is called 100mm long). The shortest graphite is the shortest (100 times at 100 times, le