2023-05-05

Insufficient technical investment in domestic graphite powder production enterprises

As a policy of each graphite deep processing production company, it is far from reality. The single product function is not bad, but the stability of batch production is doubtful, and the consistency of each batch of products cannot be guaranteed. A professor of deep processing and production of graphite powder believes that the exchanges of different types of different types of information for the deep processing and production of graphite powder will be a long process. The gap between many companies is that they have excellent experiments but cannot produce in batches. The following editors analyze the reasons for the lack of technical investment in domestic graphite powder production enterprises:It is not related to the automation control of the company's production line, which is a systematic problem. At present, graphite powder deep processing production equipment accounts for more than half of the imported equipment. Graphite mineral resources are a very important strategic reso

2023-04-21

Application of Graphene

Graphene makes indoor people feel as if they are in the windless "warm winter sun". They have both heating and health care. Different from traditional heating equipment such as air conditioners, oil sticks, floor heating, etc., graphene heat painting is more comfortable, more energy-saving, not boring, no noise, neither oxygen deficiency nor light pollution. It is a classi

2023-03-14

Do you know what is the difference between graphite powder and coal powder?

The chemical elements of the two are the same, but the structure is completely different. The coal is a molecular crystal, and the graphite is a atomic crystal. Usually we usually say that C powder is molecular crystals.Graphite: Natural crystal graphite, shaped like fish phosphorus, is a hexagonal crystal system, with layer -like structure, high temperature resistance, conductivity, heat conduction, lubrication, plasticity, acid and alkaline resistance. The scale graphite is divided into four categories according to the fixed carbon content: high pure graphite, high carbon graphite, medium carbon graphite, low -carbon graphite.Graphite powder is soft, gray -black; raw materials have heat -resistant conductivity, which can be used as refractory insulation materials, conductive raw materials and wear -resistant moisturizing raw materials. Graphite's unique process is processed into milk products. It is smooth and exquisite in viewing. It must use containers such as barrels and other co

2023-12-11

The service life of graphite crucibles

Nuclear energy uses graphite material

Graphite is one of the deceleration materials and reflective materials used in nuclear reactors. Early reactors are graphite heaps. The nuclear reactor for structural materials use graphite using raw materials, process control, and finished product inspection than graphite electrodes. The nuclear reactor must have the following performance with graphite , High heat shock, good deceleration performance to fast neutron, stable size under radiation, and very small impurities. Boron, cadmium and other elements that are easy to absorb neutron should be strictly controlled.Nuclear graphite must have a high volume density M because the deceleration of graphite on fast neutron is relying on the collision effect of fast neutron to carbon atoms. One of the main indicators of nuclear graphite M is also directly related to the pore rate and penetration rate of graphite. In order to avoid the loss of nuclear fuel and heat carrier, M should reduce the pores and penetration rates to a certain level.

2023-10-31

How to achieve the flame retardant effect of expanded graphite

How to achieve the flame retardant effect of expanded graphite? The good physical and chemical structure of expanded graphite is widely used in industry. There are many applications that use the flame retardancy of expanded graphite, which has a good flame retardant effect. How can the effect be achieved? Today, the editor will explain how the flame retardant effect of expanded graphite can be achieved:1. Expanded graphite can generate many lightweight refractory carbon layers in fires, effectively isolating the radiation source of heat value onto the substrate and maintaining the substrate.2. Expanded graphite is an excellent conductor, and the prepared coating can avoid the accumulation of static charges, prevent fire, and prevent static electricity.3. Adding expanded graphite to coating materials can obtain flame-retardant and anti-static coatings, improving resistance to heat and fire characteristics.Starting from thermodynamic and surface chemistry issues, the adsorption mechanis

2023-12-15

Antioxidant treatment methods for graphite materials

As is well known, during the manufacturing process of graphite products, the thermal decomposition and condensation of organic carbon based raw materials form porous artificial graphite materials, with a general porosity of around 20% to 30%. Most of them are open pores, which increases the diffusion speed and depth of oxidizing gases, and deteriorates their antioxidant pr

2023-08-21

Main characteristics of graphite crucible

1. High thermal conductivity: Due to the use of raw materials such as graphite with high thermal conductivity, the melting time is shortened.2. Heat resistance and shock resistance: Strong heat resistance and shock resistance, resistant to cracking during rapid cooling and heating.3. High heat resistance: High fire resistance, capable of withstanding high temperatures ranging from 1200 to 1600 ℃.4. Erosion resistance: Strong resistance to erosion of molten soup.5. Resistance to mechanical impact: Having a certain degree of strength to resist mechanical impact (such as the input of molten materials).6. Oxidation resistance: Graphite is prone to oxidation at high temperatures in oxidation aerosols, and due to oxidation prevention treatment, oxidation consumption is relatively low.7. Anti adhesion: Because graphite has the characteristic of not easily adhering to molten soup, the immersion and adhesion of molten soup are less.

2023-08-07

What are the advantages of graphite molds?

The graphite mold materials used for diamond tool manufacturing are mainly graphite materials with ultra-fine particle structure, high purity, and high degree of graphitization. The average diameter of graphite mold materials is less than 15 microns, even less than 10 microns, and the average pore size is less than 2 microns. The graphite mold made from this carbon raw material has advantages such as low porosity, dense structure, high surface finish, and strong oxidation resistance, with an average service life of 30-40 times.Electronic sintered graphite molds and transistor supports can be manufactured using artificial graphite materials with minimal thermal deformation. At present, they are widely used and have become indispensable materials for the development of the semiconductor industry.The electronic sintered graphite mold of hot pressed sintered diamond tools has dual functions of heating element and mold support in the manufacturing process of diamond tools. The quality of t

2023-02-22

Graphite products production and processing in the middle of pressure molding and extrusion molding method

Modeling method is to put a certain total paste in the mold and specifications of the specified mold and specifications, and then press it from the top or below. Sometimes it also increases a certain working pressure on the paste from the left and right positions at the same time, so that the paste is reduced in the mold. The processing of semi -finished products has been checked by model refrigeration. Then accumulate. The molding machine equipment has a column -type pressure machine, which is also a stand -up pressure machine. Modeling method generally only press a piece of goods at a time, and the productivity is relatively low. However, it can be allowed to systematically squeeze and mold.The squeezing molding method is to squeeze the main cylinder of the paste of the paste -loaded manner. The pressure machine should be relatively installed in front of the previous installation and can be effectively disassembled and replaced. The front is equipped with a partition that can be mov