2023-03-13

What are the types of graphite powder

1. Scales graphite powderThe use of scales graphite powder is relatively wide, and it is also a primitive material that is processed into other graphite powder. Graphite specifications range from 32 meters -12000 mesh. The scales graphite powder is tough and has good thermal conductivity and corrosion resistance. It can be used as refractory material. , Dordic and lubricating materials, conductive materials, casting, sand rollover, pressure molding and high temperature metallurgical materials.2. Collagen graphite powderCollagen graphite is formed by the average dispersing of graphite particles below 2 μ meters. The colloid graphite is a thick -shaped suspended liquid. Collagen graphite powder has the performance of high -quality natural scales graphite. It has special antioxidant, self -lubricating and plasticity under high temperature conditions, and has good conductivity, thermal conductivity and attachment. It is mainly used in sealing and metallurgical release industries.3. Super

2023-03-28

The main characteristics of artificial graphite

Crystal structure

What is the application scope of industrial graphite powder

Prevention and gray removal of graphite production and processing workshop

The anti -pollution -proof of graphite production and processing workshop is stable in the physical properties of ash graphite and no organic chemical corrosion. Therefore, the removal of the ash in the workshop does not need to consider anti -virus and corrosion resistance, mainly to reduce the concentration value of smoke and dust in the air and collect tiny smoke.First, to ensure the sealing of graphite production and processing workshop, and prevent environmental pollution from smoke and dust. Graphite production and processing workshop air has graphite smoke dust. Graphite smoke should be collected and purified according to the dust removal equipment before removing the workshop.In the secondary, graphite production and processing should be based on the concentration value of the smoke and dust caused by the system. Different CNC lathes, different concentrations of production and processing processes are different. For example, the concentration value of the smoke and dust concen

2023-07-10

Expansion graphite, a new multifunctional insulation material

Expansion graphite is a kind of graphite that can expand and shrink in high temperature environments. This material has very special physical and chemical properties. Graphite is a kind of carbon, and its structure is connected by hexagonal carbon atoms. Generally, graphite can be completely melted, but at high temperature, due to the enhancement of the interaction between carbon atoms, graphite can form more stable stability The structure of the expansion is achieved.1. The development of expansion graphiteThe development of expansion graphite dates back to the 1960s. At that time, scientists discovered that graphite can be deformed regularly within a certain temperature range, and the translucent graphite can remain stable. Subsequently, scientists also found that under certain conditions, graphite at high temperature can be used to create a variety of structures, and these structures can be used to support greater weight and develop the technology of expanding graphite.Second, the

2023-09-05

The Forming Process of Carbon Graphite Materials

There are various forming methods for carbon production, including four main methods: compression molding, extrusion molding, vibration molding, and isostatic pressing molding.Molding methodThis method uses a vertical press to make a mold according to the shape and size of the product. Then, a certain amount of mixed paste or powder is loaded into the mold on the press workbench. The press is started to apply pressure to the paste or powder, and maintained for a certain time to form it. Then, the pressed blank is ejected from the mold.The molding method can be divided into unidirectional pressing and bidirectional pressing, hot pressing and cold pressing according to different processes and equipment conditions. The molding method is suitable for pressing products with small size differences in three directions, uniform density, and high structural density and strength, but the products have anisotropy. Mainly used for producing electric carbon products and special graphite products.E

2023-11-16

Classification of Graphene

There are two classification methods for graphene. One is based on the number of layers, which can be divided into four categories: single-layer, double-layer, few layer, and multi-layer products; Another type of product can be divided into three categories according to its form: powder, slurry, and film. Graphene powder and graphene thin film are currently the two main forms of graphene materials. The former is mostly doped in other materials and is widely used in coatings and lithium-ion batteries; Graphene thin films are widely used in the fields of electronics, photons, and optoelectronic devices due to their advantages of transparency, conductivity, and flexibility. Different graphene products have certain differences in raw materials due to different preparation methods. Graphene powder is mainly formed by physical or chemical methods, and the main raw material is natural graphite. Graphene thin films are mainly deposited by chemical vapor deposition, and their raw materials are

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

2023-03-28

Preparation of ultra -fine graphite powder

Graphite powder is soft, black and gray; it is greasy and can pollute paper. The chemical properties of graphite powder are relatively stable at normal temperature, insoluble in water, dilute acid, dilute alkali and organic solvents; the material has high temperature resistance resistance, which can be used for refractory materials, conductive materials, and wear -resistan

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