2023-04-03

The shortcomings and prevention of graphite mold heat treatment process

The rise of electric vehicles has led to rapid growth in demand for battery materials

With the increasing awareness of global environmental protection, electric vehicles are increasingly receiving attention and favor from people. And one of the most important components of electric vehicles, the battery, has become a popular product in the market. However, the popularity of electric vehicles will lead to a significant increase in demand for battery materials. How big is this market and what materials will become the mainstream?Firstly, the growth in demand for battery materials is evident. According to consulting firm Roskill, the global market size for battery raw materials in 2018 was approximately $25 billion, and it is expected to reach $70 billion by 2025. This growth will mainly come from demand growth in fields such as electric vehicles, energy storage systems, and renewable energy.Secondly, what are the main components of electric vehicle battery materials? Lithium, nickel, cobalt, manganese, aluminum and other metals are all used to varying degrees. Among them

2023-11-02

Optical and mechanical properties of graphene

Graphene has excellent optical properties, with an absorption rate of about 2.3% over a wide wavelength range, making it almost transparent. Within the thickness range of several layers of graphene, with each increase in thickness, the absorption rate increases by 2.3%. Large area graphene films also have excellent optical properties, and their optical properties change with the thickness of graphene. This is an unusual low energy electronic structure possessed by single-layer graphene. At room temperature, a voltage is applied to a double-gate double-layer graphene field-effect transistor, and the bandgap of graphene can be adjusted between 0 and 0.25 eV. When a magnetic field is applied, the optical response of graphene nanoribbons can be tuned to the terahertz range.When the intensity of the incident light exceeds a certain critical value, graphene's absorption reaches saturation. These characteristics allow graphene to be used as a passive mode-locked laser. This unique absorption

2023-08-29

The main impregnating agents currently used for graphite

(1) Carbon based materials: Most carbon based materials use asphalt, but in order to control the filling rate, tar or asphalt is often mixed with low carbonization rate and low viscosity carbon based materials such as tar and creosote. They are carbonized through heat treatment after impregnation, so the residual material entering the pores is only carbon. The carbon process is currently a standard carbon process aimed at improving density, strength, conductivity, thermal conductivity, corrosion resistance, and wear resistance. It has become the most common treatment method for general carbon materials, especially in the production process of fine structured graphite and UHP electrodes for electric furnace steelmaking. It is an indispensable process. In order to achieve the same goal, there are also cases of impregnating synthetic resin and then roasting and carbonization. The carbonization of synthetic resin generally generates hard carbon, which is characterized by greatly increasin

2023-05-10

What is the market development prospect of spherical graphite?

Graphite is one of the better minerals in my country. This new type of natural graphite material produced and processed by new technology has played a key role in various industries such as electronic devices, chemical factories, light industry, military industry enterprises, national defense safety, aerospace and other industries. The spherical graphite is based on high -quality high -carbon steel natural scales graphite as the raw material. It uses advanced manufacturing processes to modify the surface of graphite to produce graphite products with different fineness and near -ellipse spherical.First: Graphite is divided into crystal graphite (shell -like) and hidden crystal graphite (soil) according to the crystal degree. Ballog graphite is suitable for spherical or spherical graphite products processed by mechanical and physical methods with natural scale graphite. It emphasizes that the physical and chemical performance of natural graphite should meet the following requirements:Se

2023-11-13

Preparation process and application of ultrafine graphite powder

Ultrafine graphite powder is one type of graphite powder. The raw material of ultrafine graphite powder is natural flake graphite, which is crushed using an airflow grinder or ultrafine micro grinder. Ultrafine graphite powder with a particle size of 6-10 μ m. It's ultrafine graphite powder.The preparation process of ultrafine graphite powder is as follows: natural flake graphite and raw material coke enter the crushing chamber through a feeding injector with compressed air, and are distributed at the nozzles outside the crushing chamber to inject ultra-high speed airflow into the crushing chamber, causing the coke powder to collide and rub with each other at high speed to form micro powder. The airflow with micro powder is discharged into the grading chamber through the outlet pipe, separating the coarser particles and being crushed again through the return pipe, The remaining micro powder is collected in stages using a cyclone separator and a bag collector. Ultrafine graphite powder

2023-06-15

Introduction to the characteristics of flake graphite

1. As a basic raw material, flake graphite can be processed into ultrafine graphite powder, expanded graphite, nano graphite powder, high-purity graphite powder, etc.2. Flake graphite has good lubricity, high temperature resistance, conductivity, etc. Processed into solid graphite lubricant, widely used in mechanical lubrication.3. The quality of flake graphite depends on its carbon content. By purifying flake graphite, it can be processed into high carbon, medium carbon, and low carbon flake graphite. Each type of graphite has a different carbon content, and the higher the carbon content, the better its industrial use.Flake graphite has strong thermal shock resistance and good corrosion resistance, making it the main carbon material for carbon refractory materials. It has important factors affecting the corrosion resistance and high-temperature working strength of carbon refractory design materials such as magnesia carbon bricks. In the actual production process, carbon refractory ma

2023-09-05

How is the steelmaking electric arc furnace equipped with graphite electrodes?

Ordinary power electric furnaces are equipped with ordinary power graphite electrodes, high-power electric furnaces are equipped with high-power graphite electrodes, and ultra-high power electric furnaces are equipped with ultra-high power graphite electrodes.For AC steelmaking arc furnaces,The 10-30t electric furnace is equipped with graphite electrodes with a diameter of 300-400mm,30-50t electric furnace equipped with 450mm diameter graphite electrode,60-80t electric furnace equipped with 500mm diameter graphite electrode,100-170t electric furnace is equipped with graphite electrodes with a diameter of 550-600mm,The 200t electric furnace is equipped with graphite electrodes with a diameter of 600-700mm,250-300t electric furnace is equipped with 700mm diameter graphite electrodes.For DC steelmaking arc furnaces,30t electric furnace equipped with 450mm diameter graphite electrode,A 60t electric furnace is equipped with a 500mm diameter graphite electrode,70-80t electric furnace equipp

2024-03-19

The balance of graphite mineral exploitation and environmental protection

Graphite products Graphite Application common problems

Graphite is widely used in industrial departments such as the metallurgical industry, forging, machinery and equipment, chemical factories, and other industrial departments. Below, Kobwei's graphite product manufacturer told everyone that the application of graphite products for graphite products.