Graphite hot switch_Industry Dynamics_News

Graphite hot switch

Time：2023.05.23Browse：1: Share:

Machining artificial graphite into the shape of the required, and then use resin immersion and solidification, which is made of non -transparent graphite products for thermal exchange. For chemical industry. include:

(1) Block hole heat exchanger;

(2) radial heat exchanger;

(3) Membrane heat exchanger;

(4) Tube heat exchanger.

Graphite electrode

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Heating graphite

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2023-06-20

The functions and characteristics of flake graphite

As a functional filler for coatings, flake graphite is mainly used for anti-corrosion coatings, fireproof coatings, and conductive coatings. As an anti-corrosion material, it is a rust resistant primer made of carbon black, talc powder, and oil, which has good chemical resistance and solvent corrosion resistance. If chemical pigments such as zinc yellow are added to the formula, the rust prevention effect will be better.The manufacturer of flake graphite believes that expandable graphite is a Graphite intercalation compound made from natural graphite flakes through chemical or electrochemical treatment. Under heating conditions, the volume of expandable graphite rapidly expands (up to 300 times), suffocating the flame and producing expanding substances that can isolate the flame, delay or interrupt its spread, be non combustible, have good flexibility, high surface energy, and good carbonization layer strength. However, the volume and dosage of the expansion body should be appropriate

2023-07-03

The application field and future development trend of conductive graphite

Condent graphite is a material with high electrical conductivity. Because of its excellent conductive performance and high mechanical strength, it is widely used in many fields. In this article, we will explore the application areas and future development trends of conductive graphite.1. Battery fieldConductive graphite has excellent conductivity and mechanical strength, and is one of the indispensable materials in battery manufacturing. Condent graphite can be used to produce negative electrode materials for lithium -ion batteries, which can increase the cycle life and energy density of the battery while reducing the self -discharge rate of the battery.2. Electronic fieldCondent graphite can be used as conductive materials for electronic products, such as display, touch screen and printing circuit board. The conductive performance of conductive graphite can make the electronic equipment more sensitive and responding faster, and at the same time, it can also improve the mechanical str

2023-08-08

Varieties and uses of carbon rods

Carbon rods are made from carbon or graphite materials as the substrate. Carbon rods can be used as electrodes for arc discharge in various electrical equipment that generate thermal or light energy. During arc discharge, high temperature and strong luminous intensity are generated.Carbon rods can be divided into film projection carbon rods, high color temperature photography carbon rods, ultraviolet linear and sunlight type carbon rods, photographic plate making carbon rods, carbon arc air gouging carbon rods, precision casting carbon rods, electrolytic carbon rods, arc lighting carbon rods, spectral carbon rods, battery carbon rods, and welding carbon rods according to their purposes.Arc lighting carbon rods are used in searchlights, as well as in strong arc lamps for film projection, photography, plate making, and ultraviolet light sources. Carbon arc air gouging carbon rods are used for arc cutting of metal materials, drilling, eliminating casting risers and other defects. Spectra

2023-05-22

Graphite melting point

Graphite is a kind of homogenous alien in element carbon. Each carbon atom is connected to the other three carbon atoms (multiple hexagonal sixtures with honeycomb -shaped hexagonal) with covalent bonds to form covalent molecules. [1] Because each carbon atom will release an electron, those electrons can move freely, so graphite is a conductive body. Graphite is one of the softest minerals, and its purpose includes a pencil core and lubricant. Carbon is a non -metal element that is located in the second cycle IVA family located in the element cycle table. Latin is Carbonium, which means "coal, charcoal".The melting point of diamond is 3823K, and the melting point of graphite is 3773K. Graphite melting points are lower than diamonds. The melting point of graphite and diamond cannot be considered simply from the aspects of the key energy. If the number of broken keys during melting is ignored, the data obtained is not desirable

2023-08-28

Factors affecting the impregnation effect

The factors that affect the impregnation effect include: firstly, the impregnation process conditions (such as temperature and pressure), and secondly, the physicochemical properties of the impregnation.Influence of process conditions(1) Temperature (product preheating temperature, impregnation tank temperature, impregnation agent temperature), depending on the impregnation process: 1. The product is preheated too high and is prone to oxidation; The temperature is too low, and when it comes out of the preheating box, it quickly cools down and enters the impregnation tank. When the impregnating agent encounters cold products, its viscosity increases and its fluidity deteriorates, resulting in poor impregnation effect. 2. If the tank temperature is too high, asphalt is prone to oxidation condensation reaction, viscosity will also increase, and flowability will deteriorate; The tank temperature is too low, the fluidity of asphalt is also poor, and the impregnation effect is not ideal.(2)

2023-10-23

The production method of graphite bearings

Graphite bearings, due to their self-lubricating, high and low temperature resistance, corrosion resistance, and other characteristics, can meet the sealing requirements for strong corrosion, flammable, explosive, and radioactive media. Effectively solving the problems of "running, emitting, dripping, and leaking" in chemical equipment, it has a good effect on improving labor conditions, product quality, and productivity.Graphite bearings can be divided into rolling bearings and sliding bearings, and there are also different materials such as metal, non-metal, and composite materials. Graphite bearings are commonly used in sliding bearings, which are further divided into radial bearings and thrust bearings. The article mainly analyzes carbon graphite bearings, bronze graphite oil bearings, and embedded graphite bearings.The manufacturing method of graphite bearings is characterized in that it is achieved by the following technical solutions:1) . Model making: polystyrene foam plastic

2023-08-25

Chemical properties of graphite and carbon materials

Carbon materials are chemically inert in non oxidizing media. Under normal temperature and pressure, no chemical changes will occur. Except for long-term immersion in nitric acid, hydrofluoric acid, or in fluorine, bromine, and other strong oxidizing atmospheres, interlayer compounds will slowly form. It is not corroded by other acids, bases, and salts, and does not interact with any organic compounds. There is no significant oxidation phenomenon of graphite within 450 ℃ in the air. It only reacts with water vapor above 700 ℃ and with CO and CO2 above 900 ℃. The temperature at which graphite produces carbides with certain metal and oxide powders is mostly above 1000 ℃.The chemical reactions of carbon materials can be divided into the following three types:(1) Gasification reaction and high-temperature oxidation reaction;(2) Solid solid reactions with metals, ceramics, etc;(3) Formation reaction of interlayer compounds.

2023-08-16

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

2023-05-17

Graphite Product Materials advantage

Graphite products (including graphite rods, graphite products, graphite blocks, graphite boards, graphite carbon pipes, graphite rings) are important strategic resources. Graphite is a degeneration of carbon substances, which is most common in Dali, sliced rocks, or hemp rocks. The coal seam can form graphite through the thermal deterioration, while a small amount of graphite is a native mineral of fire rock.The industrial graphite ore is divided into two categories: crystal (scale) graphite ore and steady crystal (earth -shaped) graphite ore. Crystal graphite ore can be divided into two types: scale -like and dense. Chinese graphite ore is the type of scales -like crystal, followed by hidden crystal type, and dense crystal graphite is only seen in individual mining plants such as Tocobra, Xinjiang.Due to its special structure, graphite products are resistant to high temperature resistance, heat shock resistance, conductivity, lubrication, chemical stability, and plasticity. Important

2023-09-19

The Properties of Graphite and Its Application in Smelting

Graphite undergoes special forming methods to achieve its industrial application characteristics, namely special graphite. The three high graphite is commonly known as the three high graphite in the industry, but not all three high graphite is isostatic pressure graphite. In addition, there are materials such as molded and extruded graphite, which, due to their special structure, have high temperature resistance, conductivity, thermal conductivity, lubrication, chemical stability, and plasticity Characteristics such as thermal shock resistance.The application of graphite in the metallurgical industry is due to its high temperature resistance, thermal conductivity, stable chemical properties, and thermal shock resistance. In the metallurgical industry, graphite is mainly used as a refractory material. We are familiar with graphite crucibles, refractory bricks, and casting molds in the metallurgical industry. Graphite products are closely related to the smelting industry, and in the ste

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