2023-03-27

How about the antioxidant performance of natural scales graphite

The cold pressure molding of natural scales graphite -free adhesives is a natural scales graphite sample, and the impact of changes in forming pressure, pressure -keeping time on sample density, porosity, and folding strength. The relationship between the micro -structure and anti -folding strength of the natural scales graphite sample is qualitatively analyzed. The two systems of boric acid -urea and e

2023-08-28

Factors affecting the impregnation effect of graphite

The factors that affect the impregnation effect include: firstly, the impregnation process conditions (such as temperature and pressure), and secondly, the physicochemical properties of the impregnation.Influence of process conditions(1) Temperature (product preheating temperature, impregnation tank temperature, impregnation agent temperature), depending on the impregnation process: 1. The product is preheated too high and is prone to oxidation; The temperature is too low, and when it comes out of the preheating box, it quickly cools down and enters the impregnation tank. When the impregnating agent encounters cold products, its viscosity increases and its fluidity deteriorates, resulting in poor impregnation effect. 2. If the tank temperature is too high, asphalt is prone to oxidation condensation reaction, viscosity will also increase, and flowability will deteriorate; The tank temperature is too low, the fluidity of asphalt is also poor, and the impregnation effect is not ideal.(2)

2023-05-04

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

2023-06-14

Expanded graphite, a new multifunctional insulation material

1、 The Development History of Expanded GraphiteThe development of expanded graphite can be traced back to the 1960s, when scientists discovered that graphite can deform regularly within a certain temperature range, and the deformed graphite can remain stable. Subsequently, scientists discovered that under certain conditions, graphite at high temperatures can be used to manufacture various structures, which can be used to support larger weights, thus developing the technology of expanded graphite.2、 The use of expanded graphiteExpanded graphite has a wide range of uses and can be used to manufacture various structures, such as bridges, buildings, etc. In addition, expanded graphite can also be used to manufacture electronic products, such as chips, printed circuit boards, etc. In addition, expanded graphite can also be used in space technology, such as spacecraft and space stations.3、 Steps for using expanded graphiteFirstly, it is necessary to determine the temperature of expanded gra

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

2023-03-28

What is the application scope of industrial graphite powder

Fluorine

What are the characteristics of the thermal stability of the film -shaped graphite

Sheet -shaped graphite is a natural ore, with a thin piece or scale, and the aggregate is in the form of soil. It is a hidden crystal. Film graphite has many high -quality physical and chemical characteristics, including good thermal stability. Compared with other products, the thermal stability of film -like graphite has great advantages.Film graphite is one of the most high -temperature -resistant materials at present. Generally, the strength of the material is gradually decreased at high temperature. However, when heating to 2,000 degrees Celsius, the strength of the sheet -shaped graphite is twice the temperature at room temperature.Sheet -shaped graphite has excellent heat shock resistance. When the temperature suddenly changes, the thermal expansion coefficient is small, so it has good thermal stability. When the temperature changes rapidly, cracks will not occur.Sheet -shaped graphite is a material with excellent thermal shock. For graphite electrodes used in electric furnace s

2023-03-22

Selection and use of graphite

What are the choices of is used for refining, and usually the temperature is extremely high. Therefore, the raw materials for manufacturing should have high refractory resistance and have a strong high temperature resistance coefficient. There are also sufficient strength of ingredients. If the impact of high temperature, etc. during the smelting process, there will be wear. Therefore, if the strength of the raw material is not high, it is likely that the more waves will be used, and the more toughness will be lacking. The contraction coefficient must be small, and the temperature changes sharply without deformation and breaks. There must be not to afford the chemical response with the melted metal in the selection of materials, and the high temperature resistance of chemical metals should be high. Loss. When the melting metal is demanded at high temperature, the selection of should ensure that chemical stability at high temperature should be learned. It can be seen that there are a

2023-05-10

The application of scales graphite in the casting industry

Scales graphite is widely used in industry, especially the casting industry. In the production process of the casting industry, the casting process is carried out at high temperature environments. In order to prevent castings from deforming or broken at high temperatures, special casting scales need to be added to add cast materials and add casting materials. After the scale graphite, it can resist high temperature to ensure the quality of the casting. The following editor of graphite manufacturers will introduce the important application of scales graphite in the casting industry:There are many specifications for casting scales for castings, 600 meters ~ 800 mesh, 1200 mesh and other specifications for casting dedicated graphite. In different casting production fields, special casting scales of different mesters need to be used. Graphite helps the product to complete faster and better, and improve the quality of the casting products. Therefore, the scale graphite of the cast plant is