2023-07-19

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

2023-06-14

Expanded graphite, a new multifunctional insulation material

1、 The Development History of Expanded GraphiteThe development of expanded graphite can be traced back to the 1960s, when scientists discovered that graphite can deform regularly within a certain temperature range, and the deformed graphite can remain stable. Subsequently, scientists discovered that under certain conditions, graphite at high temperatures can be used to manufacture various structures, which can be used to support larger weights, thus developing the technology of expanded graphite.2、 The use of expanded graphiteExpanded graphite has a wide range of uses and can be used to manufacture various structures, such as bridges, buildings, etc. In addition, expanded graphite can also be used to manufacture electronic products, such as chips, printed circuit boards, etc. In addition, expanded graphite can also be used in space technology, such as spacecraft and space stations.3、 Steps for using expanded graphiteFirstly, it is necessary to determine the temperature of expanded gra

2023-07-25

What factors are influenced and gray -testing of scales graphite creep

1. The creep of scales graphite increases with the increase of temperature and stress time. It takes a long time at a lower temperature to observe the obvious creep, but at a higher temperature, the creep can be almost linear increased, that is, the peristalsis at a lower temperature increases only several times, and the temperature rises at a few times at a few times. The intervals when Baidu increased the index.2. The creep of scales graphite is also proportional to the exerted stress. In the same temperature and the same time, the greater the stress applied, the greater the creep.3. The creep of scales graphite is also related to the final heat treatment temperature of graphite. The higher the thermal treatment temperature, the smaller the scales of graphite.For the analysis of micro -quality impurities in scales graphite, the sample is usually pre -grayed or wet to digest carbon removal, dissolved ash with acid, and then determined the impurities in the solution. The measurement m

2023-09-05

How is the steelmaking electric arc furnace equipped with graphite electrodes?

Ordinary power electric furnaces are equipped with ordinary power graphite electrodes, high-power electric furnaces are equipped with high-power graphite electrodes, and ultra-high power electric furnaces are equipped with ultra-high power graphite electrodes.For AC steelmaking arc furnaces,The 10-30t electric furnace is equipped with graphite electrodes with a diameter of 300-400mm,30-50t electric furnace equipped with 450mm diameter graphite electrode,60-80t electric furnace equipped with 500mm diameter graphite electrode,100-170t electric furnace is equipped with graphite electrodes with a diameter of 550-600mm,The 200t electric furnace is equipped with graphite electrodes with a diameter of 600-700mm,250-300t electric furnace is equipped with 700mm diameter graphite electrodes.For DC steelmaking arc furnaces,30t electric furnace equipped with 450mm diameter graphite electrode,A 60t electric furnace is equipped with a 500mm diameter graphite electrode,70-80t electric furnace equipp

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

2023-12-12

The main factors affecting the price of graphite molds are as follows

Precautions for using scales graphite?

Scales graphite is a product that is widely used in refractory materials and coatings in the metallurgical industry. Such as magnesium carbon bricks,。, etc. Now used as anticorrosive materials. Scales graphite is a rust -proof primer made of charcoal black, talc powder and oil, which has good chemical resistance and solvents. If you add chemical pigments such as zinc yellow to the formula, the rust -proof effect is better. During use, thermal shock resistance is strong and has good corrosion resistance. It is the main carbon raw material used in conjunction with refractory materials. It has an important impact on the brushing and high temperature intensity of carbon -binding materials such as magnesium carbon bricks. In the actual production process, carbon -combined refractory materials have strict requirements for the purity, gray, particle size and shape of the scales graphite. The structure and function of its high -temperature firing now depends to a large extent on the moisture

2023-02-08

my country's graphite issues

(1) Graphite mining planning and coordination are not in place

2023-07-21

Let's take a look at the use of battery -specific graphite in industrial applications

Battery -specific graphite has good chemical stability. The specially treated graphite has the characteristics of corrosion resistance, good thermal conductivity, and low penetration. Therefore, it is widely used in making heat exchangers, reaction tanks, condenser, combustion tower, absorbing tower, absorbing tower , Cooler, heater, filter, and pump equipment, are widely used in industrial departments such as petrochemical, wet metallurgical, acid -base production, synthetic fiber, papermaking, etc., which can save a large number of metal materials.It is a material for casting, casting, suppression, and high temperature metallurgy. Because of its low heat expansion coefficient, it is resistant to cold and hot, it can be used as a casting mold for glassware. After the graphite is used, the black metal can get accurate size, smooth surface, high finished product rate Casting, can be used without processing or machining, saving a lot of metals. In the powder metallurgical process that p

2023-05-24

Graphite artificial synthesis

(1) Taking natural scales graphite as raw materials, use Hummers legal oxygen graphite, and use thermal peeling into graphene, or use ultrasonic dispersion to divert into graphene, and then chemically restore into graphene. Use SEM, TEM, HRTEM, XRD, and RAMAN systems to examine the appearance and structure of graphene.(2) Taking graphene as the basis, titanate tetraododes as titanium sources. First, the solution-water thermal legal system is used to prepare titanium dioxide/graphene nano-composite materials. Use XRD, SEM, TEM, and RAMAN to characterize the crystal structure, granular appearance and chemical composition of titanium dioxide/graphene nano -composite materials. The results show that the synthetic titanium dioxide nanocrystal is a sharp titanium structure, the crystalline condition is good, titanium dioxide and graphite The composite effect is better. The photocatalytic performance of nano crystals was studied, and the results showed that titanium dioxide/graphene catalyti