2023-10-11

Application and Introduction of Graphite Pillars

The graphite column combines the wear resistance of copper alloy and the self-lubricating performance of solid graphite lubricant, making it unnecessary to refuel and maintain during use. The product is widely used for high load, intermittent or swinging movements, such as production lines for steam locomotives, water turbines, reservoir work/accident doors, plastic machinery, etc. According to the operating conditions used, various types of copper alloys can be provided.The main component of graphite column is graphite, and its performance is different from that of ordinary graphite1、 The production and processing technology characteristics of graphite pillars:1. High temperature resistance: Graphite is currently one of the most high-temperature resistant materials known. Its melting point is 3850 ℃± 50 ℃, and its boiling point reaches 4250 ℃. It is subjected to an ultra-high temperature arc at 7000 ℃ for 10 seconds, with the smallest loss of graphite, which is 0.8% by weight. From t

2023-03-28

What is the application scope of industrial graphite powder

The key role of graphite in energy storage technology

With the transformation of global energy structure and the rapid development of renewable energy, energy storage technology has become a key link. In this field, graphite plays an irreplaceable role with its unique properties.First of all, graphite is the main anode material of lithium-ion batteries, and its high energy density and excellent cycling performance make lithium-ion batteries widely used in electric vehicles, smart phones and other fields. With the continuous expansion of the new energy vehicle market, the demand for graphite continues to grow.Secondly, graphite also shows great potential in the field of supercapacitors. Supercapacitors have the advantages of fast charging speed and high power density, and graphite, as an electrode material, can provide good conductivity and stability, which provides the possibility for the performance improvement of supercapacitors.In addition, with the deepening of research, graphite has also shown broad application prospects in new ener

2023-02-08

Graphite flotation method

Floating is a commonly used and important mineral method. Graphite has good natural floating. Basically, all graphite can be purified by floating methods. In order to protect graphite scales, most of the graphite flotation uses multiple sections of processes. Graphite flotation collecting agents are generally used for kerosene, with a dosage of 100 to 200g/t. The foaming agent is generally used with pine or butad ether, and the amount is 50 to 250g/t.

Scales graphite price tends to be stable

At the beginning of the month, the price of scales in Shandong was stable as a whole. At present, the mainstream price of -195 mainstream prices are 6300-6500 yuan/ton, which is the same as last month. Entering winter, most of the scale graphite companies in the Northeast are suspended for production holidays. Although a few companies are in production, the output is reduced and the inventory reserves are not much.The scale of the scale graphite market has been poor some time ago and the demand for material resistance has declined, which led to a decline in the price of scales, and corporate quotations were chaotic. As the Spring Festival holiday approaches, due to the suspension of production in the Northeast region, graphite supply has declined, and downstream enterprises have been basically completed. The supply demand for scales graphite market is plain, and the offer is relatively stable.In 2021, the export situation of scales was relatively sluggish. According to customs statist

2023-03-13

The production process and use of expansion graphite

The expansion graphite is a loose and porous worm -like substance prepared by the procedure of graphite scales through the intervening, washing, drying, and high temperature. When the expansion graphite encounters high temperature, it can instantly swell 150 ~ 300 times in volume, which changes from sheet to worm -shaped, thereby loose structure, porous and bending, expanded surface area, improved surface can be enhanced. In this way, it increases its softness, return elasticity and plasticity.The expansion graphite is widely used, and the main development directions are as follows:1. Granules expand graphite: Small particles expand graphite mainly refer to 300 purposes that can expand graphite, and its expansion volume is 100ml/g. This product is mainly used for flame retardant coatings, and its demand is very large.2. Expansion of the swelling temperature at height: The starting expansion temperature is 290-300 ° C, and the expansion volume is ≥230ml/g. This type of expansion graphi

2023-03-08

Introduce the asphalt rubber pendant penetration processing process

The general operating process of graphite immersion is after being loaded into the product, first vacuum packaging (gas in the gas in the pores in the pores of the product) and then put it in the impregnation agent to submerge the product, then pressure it to the liquid level, so that Essence It is used for different intentions, and the standards of impregnation agent processing process are not thorough. Below, I will introduce the asphalt rubber mud impregnation processing process of graphite board in detail.The whole process of processing the processing technology of asphalt rubber -soaking small graphite board, electrode connector and its graphite anode board:First of all, the semi-finished processing surface of the graphite board was burn, and then put it into the product box and put it in the temperature of about 4 hours in the temperature of about 240-Soot. After the heat, the product is quickly installed into the impregnation tank with the iron frame (the immersion can be heate

2023-08-25

Thermal conductivity of polycrystalline graphite

The so-called carbon materials such as artificial graphite molded products are polycrystalline materials with extremely complex structures, and the basic structure of graphite crystallization has strong anisotropy. Therefore, the macroscopic thermal conductivity of carbon materials, apart from relying on empirical data, is almost unpredictable. The factors that have a significant impact on thermal conductivity include:(1) The differences in the basic properties of the initial raw materials;(2) The manufacturing process - macroscopic anisotropy;(3) Heat treatment temperature - the growth degree of graphite microcrystals;(4) Apparent density, distribution of holes, etc.

2023-09-25

graphite expansion graphite environmental materials

The effect of expanding graphite on water pollution has a large number of research results. In terms of governing oil and organic pollution in the control of water bodies, expansion graphite is far more effective and economical than ordinary activated carbon now. But expansion graphite is inconvenient to transport and needs to be prepared at the application site. The preparation, use, recycling, and regeneration of expansion graphite environmental protection materia

2023-11-01

Basic Research on Graphene

Graphene is a type of ² A new material in which hybrid connected carbon atoms are tightly packed into a single-layer two-dimensional honeycomb lattice structure. Graphene has excellent optical, electrical, and mechanical properties, and has important application prospects in materials science, micro/nano processing, energy, biomedical, and drug delivery. It is considered a revolutionary material in the future. Andre Geim and Konstantin Novoselov, physicists from the University of Manchester, UK, successfully separated graphene from graphite by micromechanical stripping method, so they jointly won the 2010 Nobel Prize in Physics. The common methods for producing graphene powder are mechanical stripping, redox, SiC epitaxial growth, and the film production method is chemical vapor deposition (CVD).Graphene has special significance for fundamental research in physics, as it enables some quantum effects that could only be theoretically demonstrated to be experimentally verified. In two-di