2023-04-19

Method of making low -density puffed graphite blocks with flexible graphite

In recent years, various types of low -density carbon graphite materials have been actively researched, including carbon (graphite) foam made of asphalt or polymer resin, as well as using high repetition pulse laser to abolish carbon materials The carbon nano foam formed. Granny Gygm is also a low -density carbon graphite material. Due to the simple preparation process and low production cost, it is convenient for large -scale industrialized production. In recent years, the research on expandable graphite has continued to deepen. The following editor of Jinhui Graphite Company introduced the method of soaking flexible graphite in the concentrated acid into a low -density puffed graphite block:The insect shape and weak macro structure of puffed graphite restrict their application. If it can be made into a stable -swollen graphite block, it will be conducive to puffed graphite to play its role as adsorption, heat insulation, heat conduction and other functional materials. The flame reta

2022-11-23

What are the ways to improve the service life of graphite molds?

Graphite molds should be produced and processed by cutting methods to improve the smoothness of the graphite mold surface and reduce the degree of adhesion between the molten metal and high-purity graphite. The composition of the carcass powder is one of the factors that cause the metal plastic film to stick to the high-purity graphite. Because iron is a strong carburizing agent, if the carcass is iron-based, there will be obvious reaction and melting between the carcass and the abrasive tool, causing the carcass melt to stick to the high-purity graphite and destroying the graphite mold. It is suggested that when calcining the iron-based carcass, a strong release agent should be brushed on the surface of the blade and the abrasive tool to reduce the adhesion of the abrasive tool during mold unloading, reduce the degree of damage, and increase the service life of the abrasive tool.2. The fracturing damage of the grinding tool is also related to the resistance of the graphite materia

2024-04-16

Mining and processing of graphite: Technological advances and environmental challenges

The mining and processing of graphite is a complex and delicate process involving multiple technical links and environmental challenges. As the global demand for graphite resources continues to grow, mining and processing technology is also improving, but at the same time, it also needs to face increasingly severe environmental problems.In terms of mining, with the progress of geological exploration technology, people can more accurately locate the location and scale of graphite deposits, and improve mining efficiency. At the same time, the application of mechanization, automation and other technologies has also reduced mining costs and improved production safety. However, the waste rock, waste water and other wastes generated in the mining process have caused a lot of pressure on the environment, and effective treatment measures need to be taken.In terms of processing, the purification, crushing, molding and other processes of graphite are also constantly optimized. The new purificat

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

2023-09-06

Introduction to Graphite Electrodes

Graphite electrodes are made of petroleum coke and asphalt coke as aggregates, coal tar pitch as binder, and undergo raw material calcination, crushing and grinding, batching, kneading, forming, roasting, impregnationA high-temperature resistant graphite conductive material made by graphitization and mechanical processing, called artificial graphite electrode (referred to as graphite electrode), to distinguish it from using natural graphiteA natural graphite electrode prepared from raw materials.Graphite electrodes are mainly used as conductive electrode materials for arc steelmaking furnaces.

2023-04-11

Key elements that endanger the sales of graphite anode board

The key element of the sales of graphite anode plates Graphite anode board itself is a kind of conductive material. As a conductive, the name is the anode oxidation. Graphite anode plate is a type of electrolytic material. Compared with other anode oxide materials, there is no doubt its advantages. Simply speaking, the application field is wide, organic chemistry is stable, heat -resistant and heat transfer performance is better!Graphite anode boards occupy a large part of the annual sales of my company, which shows that the corporate graphite anode board products have a certain degree of recognition in the sales market. In addition, the sales of graphite anode oxide products have gradually soared.Each product is an industry that it uses, except for the graphite anode plate! It is necessary to improve the characteristics of the graphite anode plate itself and the scope of use. Graphite anode specifications in the field of electrolytic aluminum industry with large amounts and electropl

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.

Skin graphite mineral procurement agent

Scales graphite is a crystalline crystal carbon. It has high electrical and thermal conductivity, high temperature resistance, stable chemical properties, low hardness and slippery. It is easy to adhere to the solid surface and can draw clear dark stripes on the paper. These excellent properties of the mineral selection process and minerals have made it widely used in industry. The following is the scales graphite minerals introduced by scales graphite manufacturers:Graphite ingredients, mining agents are mainly flotal, sometimes shaking sorting. This thin piece uses a static electricity selection method, but because the electrical selection needs to be fully dry and accurate, it is difficult to manage high -voltage power management in a humid environment, difficulty in processing fine particles, and cannot be promoted.In non -metal minerals, graphite is a relatively easy to float mineral. Therefore, scales graphite can only float well with foaming agents (such as pine oil oil, methax

2023-03-22

Let's talk about the basic characteristics of graphite

I. Special seismic resistance: Graphite's expansion gear is different, so the macro expansion coefficient is not large. In the case of sudden changes in temperature, graphite volume has not changed much; coupled with its good thermal conductivity, graphite resistance is excellent.Second, lubrication: The graphite layer is Van Der Waal Forces, which combines weak combination to make it lubricating. The lubrication of graphite depends on the size of the graphite scales. The larger the scales, the smaller the friction coefficient, the better the lubricity.Third, good chemical stability and resistance to erosion: Graphite has good chemical stability at room temperature, not subject to any strong acid, strong alkali and organic solvents; the carbon atom in the graphite layer is firm Combining, the surface of graphite phosphorus can be very low, not moisturizing by melting furnaces, and strong resistance to erosion. However, graphite is prone to oxidation in the air, and anti -oxidation mea

2023-08-01

Development of Expandable Graphite

Graphite crystal has a hexagonal network plane layered structure composed of carbon elements. The carbon atoms on the layer plane are bound by strong Covalent bond, while the layers are bound by Van der Waals force force. The binding is very weak, and the distance between layers is large. Therefore, under appropriate conditions, acid, alkali gold, salt and other chemicals can be inserted into the graphite layers, And combine with carbon atoms to form a new chemical phase - Graphite intercalation compound (GIC). When heated to an appropriate temperature, this interlayer compound can instantly and rapidly decompose, producing a large amount of gas, which makes graphite expand along the axis into a new worm like material, namely expanded graphite. This unexpanded Graphite intercalation compound is expandable graphite.Expandable graphite was first discovered by Schaufautl, a German. In 1841, Schaufautl soaked natural graphite in a mixture of concentrated HNO3 and concentrated H2SO4, and t