2023-06-07

The characteristics of silicon graphite

High hardnessThe hardness of silicon graphite is actually the hardness of SIC. It is second only to diamond, boron nitride, boron boronized, and has high hardness than tungsten tungsten and tritenuxide.Excellent corrosion resistanceSIC is a compound of a combination of covalent bonds. The chemical performance is stable. Except for strong oxidized gases and melting alkali, it is almost not eroded by other acid and alkali.Good high temperature antioxidantSICs with dense SI island glass phase at high temperature to prevent oxygen and SIC from contacting and prevent silicon carbide from continuing to oxidize. Therefore, SIC can be used above 1000 ° C for a long time.Excellent heat shocksSilicon fossils are heated to 1200 ° C for 10s, and they are put into room temperature water. It repeatedly repeatedly, as well as before, neither rupture nor peeling.

2023-11-22

Material characteristics of graphite powder

Graphite powder is a substance that is very sensitive to chemical reactions. In different environments, its resistivity will change, which means its resistance value will change. However, there is one thing that does not change. Graphite powder is one of the good non-metallic conductive substances. As long as the graphite powder is kept uninterrupted in an insulated object, it will also be electrified like a thin wire. However, there is no accurate number for the resistance value, Because the thickness of graphite powder varies, the resistance value of graphite powder will also vary when used in different materials and environments. Due to its special structure, graphite has the following special properties:1) High temperature resistant type: The melting point of graphite is 3850 ± 50 ℃, and the boiling point is 4250 ℃. Even after being ignited by an ultra-high temperature arc, the weight loss and thermal expansion coefficient are very small. The strength of graphite increases with te

2023-04-03

The shortcomings and prevention of graphite mold heat treatment process

Application prospect of Graphene in battery materials

In the current technological era, research and development in the field of battery materials are in a stage of rapid development. With the increasing demand from people, the demand for more efficient, environmentally friendly, and safe battery materials is also becoming increasingly urgent. Graphene, as an important new material, is receiving more and more attention and research. This article will discuss the application prospect of Graphene in the field of battery materials.Graphene is a single-layer honeycomb structure material composed of carbon atoms, which has excellent physical and chemical properties. It has outstanding performance in terms of conductivity, thermal conductivity, mechanical strength, and other aspects. These excellent properties provide a wide range of possibilities for the application of Graphene in the field of battery materials.First, Graphene can be used as the electrode material of batteries. Compared with traditional electrode materials, Graphene has highe

2022-11-22

Factors affecting the quality of silicon carbide grinding powder

Silicon carbide is widely used in industry and plays an important role. Silicon carbide can also be used as an abrasive, so the quality of silicon carbide particles is particularly important. We want to test its quality, so how to test its quality?Before proceeding to the analysis, the first thing we need to understand is that the abrasive is not only composed of particles of one shape, but only depends on the percentage of that shape. When analyzing the shape of abrasive grains, it can also be seen that the edges of the abrasive grain surface have characteristics such as smoothness, sharpness, rounded corners, straight lines, serrations, and cracks.Impurities are often mixed into the grinding powder. One is the components contained in the abrasive grains themselves, which are mainly formed during the smelting of raw materials, such as iron oxide, silicon dioxide, chromium oxide, and sodium oxide. Another kind of impurity is dissociated between particles, mainly iron filings and dust

2023-03-14

The application of graphite powder in the field of lubrication

The lubrication performance of graphite powder is very good. It can be applied in the field of industrial lubrication production. There are many lubricating applications for graphite powder. This is to use different specifications of graphite powder. Graphite powder can play a lubricating role. The smaller the diameter, the better the lubrication effect of graphite powder. The lubrication application of graphite powder can be used to produce various lubricating products and materials.The lubrication application of graphite powder can directly produce lubricating materials, or it can be used as composite materials. It can be processed with other materials. It can be made into graphite solid lubricants, molding agents, lubricating wear -resistant coatings, etc. Graphite powder with lubrication is made of natural scale graphite crushing processing. The scale crystalline structure of natural scales graphite has a good lubrication performance. To better, the scale graphite must be crushed

2023-05-04

Why add graphite powder to glass fiber?

Glass fiber enhanced plastic (FRP) is a composite composite material based on synthetic resin. It has the advantages of light weight, high strength, corrosion resistance, microwave transmission, electrical insulation, and reasonable performance design according to requirements. It has been widely used in aerospace, petrochemicals, transportation, construction, shipbuilding, machinery, environmental protection, textile and other fields. Glass fiber enhanced plastic (FRP) has good electrical insulation property. Under normal circumstances, the amount of graphite powder is 2.5 ~ 5%, which can reach 30 ~ 50%. So why add graphite powder to glass fiber?From an economic and technological perspective, it is best to choose inorganic abrasive materials, so the amount of graphite powder in the abrasion -resistant material of the glass fiber reinforcement is relatively large. In short, glass fiber wear -resistant materials, because its matrix is a polymer material, fills solid lubricants and vari

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

2023-07-21

Let's talk about the role of battery dedicated graphene in lithium battery

Because the battery -specific graphene has the above nano -scale effect, good conductivity and excellent mechanical properties, it is widely studied by scientists from all over the world and produced the concept of "graphene lithium battery". Battery?1. anode materialDue to its unique two -dimensional structure, excellent electronic transmission ability, and large surface area of battery -specific graphene, it has a huge potential to replace graphite to become a new generation of lithium -ion battery negative materials. The lithium storage mechanism of graphene is similar to other carbon materials. Both sides of the elene can store lithium ions. At the same time, graphene can also store lithium because of the presence of folds. Therefore, theoretically its capacity may be twice the graphite, which is higher than 744mAh/g.In addition, graphene is mostly micr -nano -size, far less than block graphite, which makes the diffusion path of lithium ions shorter, and the laminar spac

2023-03-20

Is superfine graphite graphite?

The size of a material particle determines its proper name. As you asked, micro-powder is a micron-sized powder. In the graphite industry, micro-powder generally refers to a particle with a median diameter of 10~45 microns, and ultra-micro-powder to a particle with a median diameter of less than 5 microns.