2023-03-22

Selection and use of graphite

What are the choices of is used for refining, and usually the temperature is extremely high. Therefore, the raw materials for manufacturing should have high refractory resistance and have a strong high temperature resistance coefficient. There are also sufficient strength of ingredients. If the impact of high temperature, etc. during the smelting process, there will be wear. Therefore, if the strength of the raw material is not high, it is likely that the more waves will be used, and the more toughness will be lacking. The contraction coefficient must be small, and the temperature changes sharply without deformation and breaks. There must be not to afford the chemical response with the melted metal in the selection of materials, and the high temperature resistance of chemical metals should be high. Loss. When the melting metal is demanded at high temperature, the selection of should ensure that chemical stability at high temperature should be learned. It can be seen that there are a

2023-03-07

How to turn a graphite block into a carbon increase agent

How to turn graphite blocks into carbon increases Gentle blocks are indispensable in the production process of carbon and graphite products in the production process of carbon and graphite products. Equipment external forces to get rid of the adhesion between the molecular structure of the raw material and break the raw materials. Since then, everyone can divide them into rough, shattered, sophisticated, fine grinding, etc., but they can divide them according to the broken and boring size and their particles. The same industrial production has a broken specification for different industrial production.Today, as far as everyone is concerned, the three crushing levels in the production of graphite products can be divided into pre -fragmentation, medium crushing and fine grinding. The crushing in front of the burning furnace is generally broken up to 50-70mm on the large graphite block of 200mm. The medium crushing means that the particle size is broken after forging. At this moment, the

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

2023-08-21

High power and ultra high power electrodes

The characteristic of high-power and ultra-high-power electrodes is low resistivity, allowing for a current load of 25% -40% higher than that of ordinary electrodes; The allowable current density is greater than twice; Low coefficient of thermal expansion; High flexural strength; Low oxidation loss. The production of high-power and ultra-high-power electrodes uses needle coke as the raw material, and multiple impregnations are used in the production process to increase the graphitization temperature, and corresponding improvements are made to the bonding and impregnating agents.The requirements for ultra-high power graphite electrodes are relatively strict. The volume density of the electrode reaches 1.72g/cm3; The resistivity drops to 5-7 Ω. mX10-6. Due to the fact that the current density allowed by ultra-high power is more than twice that of ordinary electrodes, the thermal stress and impact it bears increase. Therefore, the electrode requires a low coefficient of thermal expansion

2023-06-13

Future Development Trends of Battery Materials

1、 Research on New Battery MaterialsCurrently, lithium-ion batteries are the most common type of battery in the market, but they have issues with energy density, safety, and cost. Therefore, the research on new battery materials has become a hot research field. For example, Solid-state battery materials, high-performance capacitor materials, metal air battery materials are all current research directions. These new battery materials are expected to solve the problems existing in existing battery materials and also bring new possibilities for future battery applications.2、 Sustainability of battery materialsIn the pursuit of new energy and green environmental protection, the sustainability of battery materials has become an important issue. How to reduce the production cost of battery materials and improve the recycling rate is currently a hot research topic. In addition, the lifespan of batteries is also an important factor affecting sustainability. Therefore, future research on batte

2023-12-19

Rolling method of graphite plate

2023-02-22

Detailed introduction of the five major industrial production of graphite mold

Below, the main purpose of industrial production of graphite molds is shared with the old iron.1. Graphite molds can be used as conductive raw materials in industrial production. The key to using the various aluminum alloys of the medium -frequency furnace or mineral thermal heating furnace smelting factory, the strong current will cause the electric orphan according to the electrophoretes of the graphite mold. Electromagnetic can be converted into energy to increase temperature, which can achieve the manufacturing standards and manufacturing standards reflected.2. Graphite molds can be used as structural raw materials for corrosion in industrial production. Because the raw materials in graphite mold have excellent corrosion resistance, it can often be used in products such as stainless steel plates.3. Graphite molds can be used as film compression and mold application in industrial production. Because its line expansion coefficients are small and high -temperature resistance and cool

2023-08-16

The Function and Conditions of Adhesive

Carbon graphite material is a powder structure material similar to refractory materials and concrete. Except for non-ferrous brushes and mechanical metal graphite products, which are formed as a whole with a certain strength by phase transformation of metal powder at sintering temperature, the powder particles of typical carbon graphite materials cannot spontaneously bond together even at high temperatures. In order for them to bond into a whole with a certain shape and strength, a certain amount of substance that can bond carbon powder particles or fibrous fine substances into a whole must be added, and this substance is called a binder.The conditions that the adhesive should meet:1) The adhesive should be able to mix with the main material to form a plastic substance.2) The binder becomes a viscous liquid within an appropriate temperature range. And it can have good adhesion and adsorption with the particles of the main material, and has a large adsorption force.3) The binder should

2023-04-18

What are the characteristics of high pure graphite accessories molding graphite?

Graphite is a kind of homogenous alien body for carbon. It is gray -black, opaque and solid. The density is 2.25 grams per cubic centimeter, the melting point is 3652 ° C, and the boiling point is 4827 ° C. The chemical properties are stable, corrosion -resistant, and it is not easy to react with drugs such as acid and alkali. Burning carbon dioxide in oxygen at 687 ° C. Oxidation can be oxidized by strong oxidatives such as concentrated nitrate and potassium hydanol. It can be used as an anti -wear agent and lubricant. High purity graphite is used as a neutron decelerator in the atomic reactor. It can also be used to manufacture crickets, electrodes, brushes, dry batteries, graphite fibers, heat exchangers, coolers, electric arc furnaces, and arc furnaces, and electric arc furnaces, electric arc furnaces, and arc furnaces, and electric arc furnaces. Arc lights, pencils of pencils, etc.Due to its special structure, graphite has the following special nature:(1) High temperature resista

2023-05-10

The relationship between graphene and scales graphite

Graphene is stripped from scales graphite materials, composed of two -dimensional crystals composed of carbon atoms, with a thickness of only one layer. Because graphene has excellent performance in optics, electrical, and mechanics. Is graphite related to graphene? Let me analyze the relationship between scales graphite and graphene with everyone:1. The method of extraction of graphene mass production is not obtained from scales graphite, but from carbon -containing gas such as methane and acetylene. Although the word graphite is used in the name, the production of graphene is not mainly from scales graphite. On the contrary, it is obtained from carbon -containing gas such as methane and acetylene. Even the current research method is extracted from the planting plant tree. Now there is a method for extracting graphene from the tea tree.2, scales graphite contains millions of graphene. Graphene is actually in nature. If the relationship between graphene and scales graphite is mentione