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

2023-03-07

Many new main uses of graphite have already been developed and designed

Many new main uses of graphite have long been developed and designed with the development trend of scientific and technological progress. Graphite has many new main uses. High -purity graphite products are used for high -purity metallurgical industry, electronics industry, Chinese nuclear industry and mold processing; general graphite products can be used as a wall -building raw material for mining with aluminum electrolytic grooves, non -metallurgical tunnel furnaces, and non -ferrous metal furnaces. Calcium residual raw materials can be used as carbon increases for ironmaking industry. There are many types of carbon quality raw materials used to seepage nitrogen, including artificial synthesis of graphite, petroleum coke, casting focus, and pure natural graphite.Graphite products are at least within 2000 degrees. This is because carbon must be graphite at a high temperature natural environment of 2000-3300 degrees at a high temperature and natural environment of at least 10 days and

2023-05-30

GS graphite heat dissipation film characteristic advantage

1. Excellent thermal conductivity: The thermal conductivity is as high as 600-1200 W/(M-K) (equivalent to 2 to 4 times the copper, 3 to 6 times the aluminum), 40%lower than aluminum, 20%lower than copper, 20%lower than copper lower than copper2. Light proportion: 1.0-1.9 g/cm3 (density is equivalent to 1/4 to 1/10 of copper, 1/1.3 to 1/3 of aluminum)3. Low thermal resistance, soft and easy to cut (can bend repeatedly)4. Super thinness: thickness (0.025-0.1mm)5. The surface can be combined with other materials such as metal, plastic, non -drying gum to meet more design functions and needs1. Excellent thermal conductivity: The thermal conductivity is as high as 600-1200 W/(M-K) (equivalent to 2 to 4 times the copper, 3 to 6 times the aluminum), 40%lower than aluminum, 20%lower than copper, 20%lower than copper lower than copper2. Light proportion: 1.0-1.9 g/cm3 (density is equivalent to 1/4 to 1/10 of copper, 1/1.3 to 1/3 of aluminum)3. Low thermal resistance, soft and easy to cut (can

2023-08-24

Graphite product testing

Testing of graphitized blanks and machined products:(1) The detection of mechanical processing quality mainly involves the detection of dimensional accuracy and surface roughness.(2) Detection of chemical composition analysis, analysis of components and their elements, and analysis of sulfur, phosphorus, barium, nickel, titanium, and other trace elements based on different products.(3) General physical performance measurement, including measurement of bulk density, true density, porosity, pore size distribution, and pore size distribution.(4) The detection of structural analysis mainly includes metallographic microscopy, X-ray diffraction, electron microscopy, and graphitization degree measurement.(5) Mechanical performance testing includes the determination of compressive strength, bending resistance, tensile strength, elastic modulus, and hardness. In addition, there are measurements of friction coefficient and wear amount.(6) Electromagnetic performance testing mainly includes the

2023-02-22

The application temperature category of graphite board

So, how much is the application temperature category of graphite board?The application temperature category of graphite board: -200-650 ℃ (in the air), -200-3000 ° C (in non-air oxidation substances).The structure of high -temperature graphite board is atomic crystals, and the middle price is connected in the middle of the oxygen atom, resulting in a porous material that stabilizes the positive hexagon. Because the covalent single -key is a ion key with a high key that can be very high, it must be highly mechanical energy to be damaged.The average graphite board is 1200 degrees. There is no problem in the following use, such as: precision processing parts processing, spark -loading wire cutting, industry creation, etc. The high -quality graphite board with high -quality characteristics can withstand high temperatures above 3000 degrees. Because the graphite board uses high -quality graphite carbon raw materials, it reasonably reduce the pore rate and increase the volume density, which

2023-12-11

The service life of graphite crucibles

Types of products impregnated with graphite

(1) Small specification graphite electrodes and joint blanks, various specifications of graphite anodes, fine structure, high-strength, and high-density graphite. These products need to have high density and strength, as well as low electrical resistivity, so the baked semi-finished products are first impregnated with coal tar pitch and then graphitized.(2) Diaphragm type salt solution electrolysis cell graphite anode. Graphite anodes impregnated with coal tar pitch can generally last for 8-9 months, while graphite anodes that are not impregnated can only last for 5-6 months. The main reason for affecting the lifespan of graphite anodes is that the electrolyte penetrates into the pores of the anode, while hydroxide ions, sulfate ions, and hypochlorite ions in the electrolyte discharge on the anode, generating primary oxygen. This initial oxidation reaction of oxygen on the anode causes chemical corrosion, which accounts for about half of the loss. Additionally, chemical corrosion weak

2023-04-21

What should be paid attention to when processing refractory materials with flake graphite?

The characteristics of exploring expansion graphite

1. Excellent electrical performanceExpansion graphite has excellent electrical performance, which can resist the function of discharge, flame retardant, waterproof, corrosion resistance, etc., and has excellent insulation performance, making the power system operate more safe and reliable.2. Fire performanceThe expansion graphite has good flame retardability, can effectively prevent the cable and contactor from igniting, prevent the heat of the cable, and make the power system operate more safe and reliable.3. Corrosion resistanceExpansion graphite has a good corrosion resistance, can effectively resist the erosion of various corrosive agents, protect the power equipment from environmental infringement, and make the power system operation more safe and reliable.4. Seismic performanceExpanding graphite has good seismic resistance, can effectively reduce the damage to seismic resistance and ensure the safe operation of power equipment.Expansion graphite is a new multifunctional insulati

2023-10-18

What is the purpose of spherical graphite?

Spherical graphite has a wide range of market applications, widely used in industry, agriculture, and mining. It has a wide range of applications and is an important additive material in industrial production. So where are spherical graphite used.1. Spherical graphite as refractory material: The graphite structure and its related products have the properties of high temperature resistance and high strength, and can be mainly used in the metallurgical machinery industry for graphite crucibles and other manufacturing processes.2. Spherical graphite as a conductive material: used for manufacturing electrodes, carbon tubes, positive electrodes for mercury rectifiers, telephone parts, television tubes, etc.3. Spherical graphite as a wear-resistant lubricating material: graphite is commonly used as a lubricant in the mechanical industry. Lubricants typically cannot be used at high speeds, temperatures, and pressures, and wear-resistant materials can be graphite at high sliding speeds.4. The