2023-02-22

Many elements of the destruction of graphite molds

There are two methods for burning the graphite molds for the destruction of graphite molds: resistance wire heating method and high -frequency electromagnetic sensing heating method. We know that when the resistance wire heating method is burned, the outer mold temperature is low, and the blade and core mold temperature is higher. The temperature is unevenly decided to decide the part where the mold is destroyed.1. Surface air oxidation and cracks: Because there is no recovery atmosphere during the entire process of burn, the graphite and gas are directly contacted, and it is difficult to avoid the surface air oxidation at high temperature. The higher the temperature, the faster the air oxidation rate; The mold is slowly consumed, leaving only a part of carbon and gray, and stones can be found on the spot on the spot. After a period of time, the surface of the mold will cause porosity and charcoal.2. Fracture: The reason for this kind of destruction is that the gear board of the golde

2023-03-03

What are the key applications of graphite model

What are the critical use of graphite molds in recent years? Graphite has gradually become preferred materials for mold production with its excellent physics and organic chemical properties. Graphite molds are generally used in various industries. Below, let's take a look at the key use of graphite molds.1. Rare metal forging and semi -continuous forging for graphite moldsArtificial synthetic graphite is the best material as a continuous or semi -continuous forging mold for rare metals. Manufacturing practice has proved that because of the selection of graphite molds, its heat transfer performance is excellent (heat transfer performance. The condensation rate of metal materials or aluminum alloys is decided), and the self -lubricating bearing characteristics of the mold are good. Improve, and because of the accurate specifications of casting, clean surface, and well -proportioned crystalline mechanism, the production and processing of the next process process can be carried out. This

2023-11-07

The difference between expanded graphite and ordinary graphene

Expanded graphite, also known as flexible graphite or vermicular graphite, is a new type of carbon material. Expanded graphite has many advantages, such as large specific surface area, high surface activity, good chemical stability, and high temperature resistance. The commonly used preparation process for expanded graphite is to use natural flake graphite as the material, which is first oxidized to form expandable graphite, and then expanded to form expanded graphite. Expanded graphite materials can instantly expand by 150-300 times in volume when exposed to high temperatures, changing from flaky to wormlike, resulting in a loose structure, porous and curved structure, expanded surface area, improved surface energy, and enhanced adsorption of flake graphite. Wormlike graphite can be self embedded between them, making the material have functions such as flame retardancy, sealing, and adsorption. It has wide applications in fields such as life, military, environmental protection, and c

2023-03-08

Introduce the asphalt rubber pendant penetration processing process

The general operating process of graphite immersion is after being loaded into the product, first vacuum packaging (gas in the gas in the pores in the pores of the product) and then put it in the impregnation agent to submerge the product, then pressure it to the liquid level, so that Essence It is used for different intentions, and the standards of impregnation agent processing process are not thorough. Below, I will introduce the asphalt rubber mud impregnation processing process of graphite board in detail.The whole process of processing the processing technology of asphalt rubber -soaking small graphite board, electrode connector and its graphite anode board:First of all, the semi-finished processing surface of the graphite board was burn, and then put it into the product box and put it in the temperature of about 4 hours in the temperature of about 240-Soot. After the heat, the product is quickly installed into the impregnation tank with the iron frame (the immersion can be heate

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

2023-04-03

The shortcomings and prevention of graphite mold heat treatment process

Fluorine

What are the advantages of high pure graphite?

Simplified graphite is an inorganic non -metallic material. High -pure graphite is a common advantage in processing and manufacturing structure casting molds, exercise of high -pure metal, sintering mold, metal coating, and transmitting electron tube. High pure graphite has corrosion resistance, the substrate is uniform and small, delaying the degree of corrosion of the product. In addition, it also has high thermality. High -content fixed carbon ensures good thermal conductivity, shorten the dissolution time, and significantly reduces energy consumption. In particular, its quality stability, the manufacturing technology and quality assurance system of high -voltage molding methods fully ensure quality stability. If graphite molds and graphite processing products of various shapes and uses can be achieved in the metallurgical industry, graphite with accuracy and roughness can be processed. High -pure graphite is specially designed according to the conditions of rapid heating and fast

2023-12-26

Graphite structure composition

Graphite is a transitional crystal between atomic crystals, metal crystals, and molecular crystals. In the crystal, covalent bonds are formed by sp2 hybridization between carbon atoms on the same layer. Each carbon atom is connected to three other carbon atoms, and six carbon atoms form a regular hexagonal ring on the same plane, extending to form a layered structure. Carbon atoms in the same plane each have one p orbital left, which overlaps with each other to form delocalized π - bonds. Electrons can freely move in the lattice and be excited, so graphite has a metallic luster and can conduct electricity and heat transfer. Due to the large distance between layers and the low bonding force (van der Waals force), each layer can slide, resulting in a lower density of graphite compared to diamond, a softer texture, and a smoother texture. [1]The distance between each layer of graphite is 3.40 Å, which is combined by van der Waals forces. The layers belong to molecular crystals, and the d

2023-07-18

Battery dedicated graphite application

With the gradual breakthrough of mass production and large -scale issues, the pace of industrialization of graphene is accelerating. Based on my country's existing technological research and development achievements, the first batch of commercial applications may be mobile electronic equipment, aerospace, and new energy battery fields.The bending screen has attracted much attention at the consumer electronics exhibition and has become the development trend of mobile device display in the future. The future market of flexible display is huge, and the future of graphene as a basic material is also full of hope.On the other hand, an important area for commercialization of new energy battery batteries. The college can successfully develop a flexible photovoltaic board with a surface formation of the Chinese graphene nano -layer, which can greatly increase the cost of reducing production of transparent transparent and deformable solar cells. It can be used for small system applications in