2023-02-22

The four major development trends in the field of graphite mold

Under the harm of China's economic development and the prevalence of Internet e -commerce prevailing, the shuffle in the graphite mold industry will increase, and the company has encountered a lot of challenges and opportunities. Therefore, the company only has the future development trend of the field, and moderate transformation and development and adjustment can really take the initiative to take the initiative and obtain dominance.1. High -end and precise positioning will be more noticedThe different advantages of graphite molds decide that it has a wide industry prospect. Under the prerequisites for giving full play to their own advantages and improving the entire process, Commodities have gradually entered the customer's field of vision. Customers' requirements and expectations for high -end products are getting higher and higher. The tentacles of high -end products have long been widening to many customers. Market demand will slowly gather to high -end, and the sales and growth

2023-04-21

Application of flake graphite in conductive coatings

Scale graphite is a natural solid lubricant with a layered structure, rich in resources and cheap in price. Scale graphite has complete crystallization, thin and good toughness, excellent physical and chemical properties, and good thermal conductivity, conductivity, thermal shock resistance, corrosion resistance, etc. The following editor will explain the application of scale graphite in conductive coatings:

2023-12-15

Analysis of the demand for high-purity graphite in China's market

In recent years, data shows that the demand for high-purity graphite in China has been steadily increasing year by year. In 2012, the demand for high-purity graphite in China was 86000 tons. In 2013, the demand for high-purity graphite in China was 97400 tons, a year-on-year increase of 13.24%. In 2014, the demand for high-purity graphite in China was 112000 tons, a year-o

2023-03-14

Introduction to the use of expansion graphite

The expansion graphite was discovered in the early 1960s. Many countries like to use it to study, so that many unexpected results can be achieved. The so -called expansion can be increased by more? That's right, more than double or even double! It is new carbon material! Many people don't know much about expansion graphite!Graphite crystals are two -way large -molecular layer -like structures. The C atom in each plane is combined with the C -C co -price bond, and the layer is combined with weaker Van Dehua.The layered structure of graphite is very typical. Each layer is a carbon atomic layer. The carbon atom in the layer is a strong covalent bond with SP2 hybrid orbit, that is, 1 2S electronics and 2 2P electronic hybridization, etc. The hybrid track of the price is located on the same plane and forms σ bonds each other, while the two unsteady 2P electrons are perpendicular to the plane to form a two -key π. This layered structure of graphite makes a certain gap between layers. Theref

2023-05-04

Mechanical performance of expansion graphite at different temperatures

Expansion graphite has excellent chemical stability, heat resistance, sealing, self -lubricating, radiation resistance and high heat -conducting. It is widely used in industrial fields such as machinery, oil, chemical, metallurgy, aerospace, navigation, transportation, and transportation. It is an ideal advanced sealing material. The mechanical property of expanded graphite may be different at different temperatures.1. Within the temperature range of 400 degrees Celsius, the compressed elastic modulus, rebound rate, and compression rate of expansion graphite sealing materials are not significantly affected by the temperature, and the impact is not greatly affected.2. There are significant differences in the compression modulus, rebound rate, and compression rate of two samples made of different materials formulas and processes, and there are also appropriate differences in the compression strength.3. Within the temperature range from room temperature to 400 degrees, the pressure resis

2023-06-06

The characteristics of high performance of silica graphite

SiO2, C, and SIC's reaction freedom can see Table 1.The freedom of reaction between SIO2, C and SICThe reaction of carbon and silicon is shown in Figure 2 with changes in temperature.The reaction of carbon and silicon changes with the temperatureThe thermal treatment temperature of graphite matrix materials (reflects its graphite), thermal expansion coefficient, pore rate and pore diameter size and distribution have a great impact on the seepage process. In order to obtain a good performance of siliconized graphite, the thermal expansion coefficient of graphite matrix materials should be as close to SIC as much as possible. It is best to use the same -sex graphite. The open air pores should be 12%to 15%. The above methods can be carried out according to the needs. For example, first use the CVR method, and then use the CVD method to process it, so that the obtained siliconized graphite is not breathable and free of free silicon. Silicon goblin has the characteristics of carbon and sil

2023-11-10

Graphite high-temperature purification method

Graphite is one of the substances with the highest melting and boiling points in nature, with a melting point of 3850 ± 50 ℃ and a boiling point of 4500 ℃. However, the boiling points of silicate minerals are all below 2750 ℃ (quartz boiling point), and the boiling point of graphite is much higher than the boiling point of the impurity silicate it contains. This characteristic is the theoretical basis for high-temperature purification of graphite. Fill the graphite powder directly into a graphite crucible and heat it in a purification furnace filled with inert gas and Freon protective gas to 2300-3000 ℃ for a period of time. Impurities in the graphite will overflow, thus achieving the purification of the graphite. The high-temperature method generally uses high carbon graphite containing over 99% carbon purified by flotation or chemical methods as the raw material, which can purify the graphite to 99% 99%. By further improving the process conditions and improving the quality of the cr

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

2023-02-08

Graphite flotation method

Floating is a commonly used and important mineral method. Graphite has good natural floating. Basically, all graphite can be purified by floating methods. In order to protect graphite scales, most of the graphite flotation uses multiple sections of processes. Graphite flotation collecting agents are generally used for kerosene, with a dosage of 100 to 200g/t. The foaming agent is generally used with pine or butad ether, and the amount is 50 to 250g/t.

The process flow of carbon material production

The basic process of carbon material production includes: pre-treatment (pre crushing, calcination, or drying) of carbon raw materials, crushing, grinding, and screening grading of carbon raw materials, proportioning of carbon raw materials, addition of molten dehydrated binder and kneading, forming of paste after kneading, and roasting of formed green billets. In order to improve the density and strength of products, high-pressure impregnation and secondary roasting cycle densification treatment are carried out on the roasted billets, The graphitization of roasted products involves mechanical processing of carbon and graphite products.Why are the quality indicators of high-power and ultra-high-power graphite electrodes superior to ordinary power graphite electrodes?The current density of graphite electrodes used in high-power and ultra-high-power electric furnaces significantly increases, resulting in the following problems: (1) due to resistance heat and hot airflow, the temperature