The conditions of forming Graphite Electrodes the electrolytic cell constitute the conditional DC power supply of the electrolytic cell (1) DC power supply (2) two electrodes. Two electrodes are connected with the positive pole of the power supply. Among them, the positive electrode connected with the positive electrode of the power supply is called the anode and the negative anode of the power supply, the electrode connected with the negative electrode is called the anode, and the electrode connected with the negative electrode of the power supply is called the cathode It’s called a cathode (3) electrolyte solution or molten electrolyte Electrolyte solution or solution.
(4) two electrodes and electrode reaction, anode (connected with the positive pole of power supply): oxidation reaction anode (connected with the positive pole of power supply): oxidation cathode (connected with the negative pole of power supply): reduction reaction cathode (connected with the negative pole of power supply): reduction group I: electrolysis group I: electrolysis CuCl2 Anode cathode chlorine.
With the increasing complexity of die geometry and the diversification of product application, the discharge accuracy of spark machine is required to be higher and higher. The advantages of graphite electrode are easy to process, high removal rate of EDM and small graphite loss. Therefore, some customers of group based spark machine abandon copper electrode and use graphite electrode instead. In addition, some electrodes with special shape can not be made of copper, but graphite is easier to form, and copper electrode is heavier, which is not suitable for machining large electrode. All these factors lead to the application of graphite electrode in some group based spark machine customers.
Graphite Electrode is easy to process, and the processing speed is faster than copper electrode. For example, when using milling technology to process graphite, its processing speed is 2-3 times faster than that of other metals, and no additional manual treatment is needed, while copper electrode needs manual grinding. Similarly, if high-speed graphite machining center is used to make electrodes, the speed will be faster, the efficiency will be higher, and there will be no dust problem. In these processes, the tool with proper hardness and graphite can reduce tool wear and copper electrode damage. If the milling time of graphite electrode is compared with that of copper electrode, the graphite electrode is 67% faster than that of copper electrode. In general, the machining of graphite electrode is 58% faster than that of copper electrode. In this way, the processing time is greatly reduced, and the manufacturing cost is also reduced.
The design of Graphite Electrode is different from that of traditional copper electrode. Many mold factories usually have different reserve in rough and finish machining of copper electrode, while graphite electrode uses almost the same reserve, which reduces the number of CAD / CAM and machining. For this reason alone, it is enough to improve the accuracy of mold cavity to a large extent
Graphite electrode is a kind of high temperature resistant graphite conductive material, which is made of petroleum coke, pitch coke as granular material, coal pitch as binder, through} kneading, molding, roasting, graphitization and machining. Graphite electrode is an important high-temperature conductive material for electric furnace steelmaking. It inputs electric energy to the electric furnace through graphite electrode. It uses the high temperature caused by electric arc between the electrode end and the furnace charge as the heat source to melt the furnace charge for steelmaking.
Other electric smelting or electrolysis equipment often uses graphite electrode as the conductive material. In 2000, the world consumed about 1 million tons of graphite electrode, and China consumed about 250000 tons of graphite electrode in 2000. Using the excellent physical and chemical properties of graphite electrode, it has a wide range of uses in other industrial sectors. Carbon products industry, which mainly produces graphite electrode, has become an important component of the current raw material industry.
Graphite electrode is a kind of high temperature resistant graphite conductive material, which is made of petroleum coke, pitch coke as granular material, coal pitch as binder, through} kneading, molding, roasting, graphitization and machining. Graphite electrode is an important high-temperature conductive material for electric furnace steelmaking. It inputs electric energy to the electric furnace through graphite electrode. It uses the high temperature caused by electric arc between the electrode end and the furnace charge as the heat source to melt the furnace charge for steelmaking. Other electric smelting or electrolysis equipment often uses graphite electrode as the conductive material. In 2000, the world consumed about 1 million tons of graphite electrode, and China consumed about 250000 tons of graphite electrode in 2000. Using the excellent physical and chemical properties of graphite electrode, it has a wide range of applications in other industrial sectors. Carbon products industry, which mainly produces graphite electrode, has become an important component of the current raw material industry.
Graphite electrode is suitable for electric furnace smelting of iron and steel, yellow phosphorus, brown corundum, metal silicon and other conductive materials. Electric furnace steelmaking is the most advanced steelmaking method in the world. The output of electric furnace steel in developed countries accounts for more than 80% of the total output. The output of home appliance furnace steel in developing countries is very small, while that in China only accounts for about 10%. The potential market of graphite electrode is very large. Moreover, only a few countries in the world produce graphite electrodes, and the carbon industry in developed countries is declining compared with that in developing countries. Therefore, with the progress of high-tech and new technology and the increase of the demand of all countries in the world, the sales volume of carbon products is increasing year by year, and the carbon industry in China will also show a strong development trend.
Our factory can also use high quality graphite billet to process various specifications of graphite crucible, graphite bar, rod, ring, tube, graphite boat and other special structure graphite products for users. It can also produce high purity, high density, high strength and other special graphite products according to the special needs of users
Graphite crucible is widely used in non-ferrous metals, rare earth metals, chemical industry and other industries. In order to meet the needs of users, our factory is willing to produce impregnated crucible, oxidation-resistant coating crucible and other new products for users.
There are two kinds of electrode joints: conical and cylindrical. Conical joint not only has high bending strength, but also is easy to connect, so all export products are supplied with conical joint. Considering the custom of domestic users, cylindrical joints can also be supplied according to the requirements.
New year’s day, that is, January 1 of the Gregorian calendar, is commonly known as the “new year” in most countries in the world. Yuan is called “beginning”, and the beginning of every number is called “Yuan”; Dan is called “day”; “New Year’s Day” means “initial day”.
“New Year’s Day” usually refers to the first day of the first month in the calendar. In China, the word “New Year’s Day” has existed since ancient times, and it was first seen in the book of Jin in literary works. In Chinese history, “New Year’s Day” refers to “the first day of the first month”, and the calculation method of “the first month” was very inconsistent before the period of Emperor Wu of the Han Dynasty, and the dates of new year’s Day (the first day of the first month) in previous dynasties were not consistent.
After the revolution of 1911, in order to “travel in summer, we follow the lunar season and start counting from the Western calendar”, In the first year of the Republic of China, it was decided to use the Gregorian calendar (actually used in 1912) and stipulated that January 1 of the Gregorian calendar was “new year”, but it was not called “New Year’s Day”. In 1949, the people’s Republic of China took January 1 of the Gregorian calendar as new year’s day, so “New Year’s Day” was also called “Gregorian year”, “new year” or “Gregorian year” in China.
At Ray Group, our engineers have been in these industries since 1990. It is combining research, development, production and sales. Backed with expertise garnered from their days at major chemical research institutes, they can offer you the technical understanding you need to get your projects done right.If you have any needs about Graphite Electrodes ,please contact us!Last,RAY GROUP LIMITED CO., LTD. wishes you a happy New Year’s Day!
First, the melting point of graphite electrode is very high, so it has high heat resistance. Graphite electrode materials can be divided into different grades according to the requirements of failure. At the same time, the selection of graphite electrode material is also the key factor, because the selection of material is suitable or not, the speed of production and processing is certain. Therefore, appropriate quality graphite materials can be selected according to different processing conditions.
Then in the purchase, it should be mainly to the regular manufacturers or professional suppliers to purchase quality assurance products, so that the quality of the products can be guaranteed, and the quality and efficiency of production can be guaranteed.
Finally, according to their actual needs, the product specifications and models are selected. Some professional manufacturers can customize according to the actual design requirements of the customers, so when choosing, we must pay attention to the choice of the product to meet the actual needs of their own.
Ultra-high power graphite electrode colloidal graphite is mainly used in lubrication, conductivity, sealing and other fields. Different types and types of colloidal graphite are needed in different industrial production fields. There are many kinds of colloidal graphite. Colloidal graphite includes 00 colloidal graphite, 0 colloidal graphite, 1 colloidal graphite and so on. Colloidal graphite lubrication is mainly used in metallurgical demoulding and moistening. Lubricating oil, grease production, paint production and other industrial fields.
Colloidal graphite lubricant can be used as demoulding lubricant in catalyst production in fertilizer industry. Colloidal graphite is used as demoulding agent in powder metallurgy. The addition of colloidal graphite to the production of lubricating oil and grease can improve the lubricity and high temperature resistance of lubricating oil and grease. Colloidal graphite can also be used as additive in rubber and plastic products. The use of colloidal graphite can also improve the wear resistance, compressive resistance and electrical conductivity of rubber and plastic products. In the industrial production of storage battery, colloidal graphite can be used as carbon film resistance and conductive coating for the production of storage battery. The use of colloidal graphite lubrication plays a role of lubrication and wear resistance in the field of industrial lubrication production.
Colloidal graphite is used in various industrial fields and plays its due role in various industrial production fields. The lubrication use of colloidal graphite plays an important role in the production of industrial lubricating materials. The lubrication use of colloidal graphite makes industrial products lubricate, wear-resistant and prolongs the service life of products. Colloidal graphite has been well applied in metallurgy, lubrication, conductivity and other fields. Mohism has promoted the development of industry and played an irreplaceable role.
Graphite crucible has the characteristics of high volume density, high temperature resistance, fast heat transfer, acid and alkali corrosion resistance, high temperature strength and high oxidation resistance, so it is unavoidable to be used to prevent corrosive substances in the use process. Although graphite crucible has the ability to resist acid and alkali, it is very difficult to clean up the crucible after it is used for the refining of individual raw materials.
For those cleaning materials, boil in dilute hydrochloric acid or nitric acid. Note that the hydrochloric acid used should not contain nitric acid, nitrate, halogen and other oxidants. If dilute nitric acid can not be washed, then use potassium pyrosulfate, sodium carbonate or borax fusion cleaning.
The primary task of cleaning graphite crucible is to clean out the chemical substances in the crucible and then clean it. We need to decide what to clean according to what the residual substances in the graphite crucible are. Generally, the adhesives on the graphite crucible are the residues of inorganic combustion. We can use hydrochloric acid to clean up, most of them are soluble, some contain. Carbon residues, which cannot be dissolved by hydrochloric acid, can be cleaned with nitric acid, because nitric acid is highly oxidizing and can be heated appropriately during cleaning.
Graphite crucibles need to be kept clean, bright inside and outside. After a long time of burning, the crucible may be gloomy in appearance, and it will penetrate into the interior of the crucible for a long time, which will cause the crucible to fragile rupture, so it must be clear what is unclean. If there are still five points or the surface is black, then use fine sand without sharp edges and corners through 100 sieves to rub gently with water to restore the gloss of the surface.
Roasting is one of the heat treatment processes in the industrial production of graphite sheets and graphite products. The roasting of raw products after moulding is indirectly heated with coke powder (or quartz sand) as protective medium in the roaster at a constant heating rate under the condition of isolating air. The heating time varies according to the product variety, specifications and the heating curve adopted. It usually takes 12 to 23 days. The highest temperature of products reached during roasting is about 1000–1250T.
The roasting temperature of graphite anode plate and graphite carbon plate which need further graphitization can be slightly lower, but the roasting temperature should not be lower than 1200T for products such as carbon block and pre-baked anode.
The pressed graphite sheet and graphite carbon sheet are composed of coke particles and binder. Because of the existence of a large number of binders (usually 20–30% in medium asphalt), raw products do not have a series of physical and chemical properties necessary for use. For example, although raw products have a certain strength at room temperature, they are brittle, impact-resistant and wear-resistant. When heated to a certain temperature (above the softening point of asphalt), they are in a softening state and are very easy to bend and deform. In addition, raw products have great resistance and are almost non-conductive.
In order to make the product possess a series of physical and chemical properties needed in use, it is necessary to roast the raw products according to certain technological conditions, coke the binder, form coke grids between aggregate particles, and firmly connect all aggregate particles of different sizes, so as to make the graphite rod and graphite carbon plates have certain mechanical properties. Finished or semi-finished products with good strength, heat resistance, corrosion resistance, conductivity and thermal conductivity (semi-finished products refer to products requiring further graphitization)
The graphite electrode supplied by the graphite gasket manufacturer is different from the copper electrode. The raw materials are mainly petroleum coke and needle coke. Asphalt is the binder. After several processes, a product that can be used in many fields has been formed. There are many differences between this product and copper electrode in many aspects.
Let’s see which aspects are different Graphite electrode production process is relatively unique, from the use of the mold, its processing is relatively simple, and the probability of wear is relatively small, to meet the needs of many people. Compared with copper electrode, it is more simple to form, which is quite good for the area where copper electrode cannot be used .
The design of graphite electrode is different from that of traditional copper electrode. Graphite electrode will use the same amount of reservation, which can reduce the number of machine processing and improve the accuracy of the mold. Graphite electrode is widely used. Users can choose to use it according to their own characteristics. We believe that its various communication performance characteristics will make you satisfied.
Graphite material is mainly composed of polycrystalline graphite, graphite is a kind of multilayered crystal with hexagonal annular planar grids between carbon atoms. Although graphite belongs to inorganic non-metallic materials, it is called semi metal because of its good thermal and electrical conductivity. Graphite has a higher heat than some metals, the electrical conductivity, at the same time, has a low thermal expansion coefficient, high melting point and chemical stability, which makes it important in engineering application. Graphite is chemically inert in a non oxidizing medium, With good corrosion resistance, in addition to strong acid and strongly oxidizing medium, graphite is not affected by other acid, alkali, salt corrosion, do not react with any organic compounds.
Graphite is also a high-temperature resistant material, at high temperature, the graphite will not melt, but at atmospheric pressure at 3,350 ℃ began to sublimate into gas. The strength of general materials decreased gradually at high temperature, but the strength of graphite at 2000 ℃ was higher than that of normal temperature. Graphite also has good thermal shock resistance.
Graphite has good self-lubricating properties, it can be used as antiwear lubricating material in the oil-repellent occasion. The capture cross-section of the high energy neutron is small, and the scattering cross-section is large, with good neutron deceleration performance and strong resistance to neutron radiation damage, and can be used as deceleration material and structural masonry in the nuclear reactor.
The disadvantage of graphite is that the oxidation resistance is worse, as the temperature increases, the oxidizing rate increases.