H2 1. Global Graphite Gauze Market Landscape and Export Challenges
I. Data Support
Market Size and Growth
The global market size of graphite felt is expected to reach 480 million US dollars in 2025 (CAGR 6.2%), with the Asia-Pacific region accounting for 42%. This is mainly due to the expansion of demand in emerging markets such as China and India .
China is the largest producer globally, with its output accounting for 65.38% of the global total in 2022. However, high-end products (such as nano-composite graphite felt) still rely on imports .
Export Pattern
China's export share of graphite felt is 65%, mainly targeting the markets of Japan, South Korea, Europe, and North America. However, in the high-end fields (such as semiconductor and high-purity graphite felt for photovoltaic applications), they are still monopolized by enterprises from the United States and Germany .

II. Core Pain Points Analysis
Technical Barriers and Certification Challenges
EU CE Certification: Materials must pass stringent standards such as vertical burning (UL94 V-0 level), hot wire test (EN 60335-1), etc. Starting from 2025, new requirements include tests for ignition by falling combustion droplets and simulation of high-temperature environment .
US UL Flame Retardant Certification: High requirements are imposed on material purity, stability, and flame retardant performance (such as double flame impact test). Only a few domestic enterprises have obtained the certification .
Emerging Market Demand and Competitive Pressure
India/SE Asia Market: Demand is expected to increase by 37% from 2020 to 2025. However, the local industrial chain is weak and relies on low-end Chinese products. At the same time, India and Indonesia, etc. have adopted policies to protect their local industries and restrict the entry of Chinese high-end products .
Increased International Competition: German SGL Carbon, Japanese Toyo Carbon, etc. have leading technologies in high-purity graphite felt fields. Chinese products are facing competitive pressure from strategies of "buying instead of purchasing"III. Suggestions on Countermeasures and Strategies

III. Suggestions on Countermeasures and StrategiesTechnical Upgrade:

Increase R&D investment, break through core technologies such as high-purity graphite (≥99.99%) and nano-composite processes, and reduce reliance on imports by.
Certification Layout: Obtain international certifications such as CE and UL in advance, establish overseas laboratory cooperation, and shorten testing cycles by .
Market Diversification: Leverage the zero-tariff policy of RCEP to deeply penetrate Southeast Asia, expand into emerging markets such as the Middle East and Africa, and diversify trade risks by .

Summary

The global graphite felt market is characterized by "domination of production by China, reliance on imports for high-end products, and the rise of emerging markets". Enterprises need to address technical barriers and competitive pressures through technological breakthroughs, compliance-oriented strategies, and market expansion, in order to seize long-term growth opportunities in fields such as new energy and semiconductors.

High-temperature resistant graphite felt vs Nano composite graphite felt:

 

 

Published in News

  What are the characteristics of graphite rotors with graphite support rods compared with other rotors?

  1. In aluminum foil casting, aluminum alloy hub and other aluminum processing industry, the cycle is up to 2 months.

  2. The rotating refining degasser is divided into movable and fixed mode, which can be applied to different operating environments. The

  3. Degassing rate is above 50%, the smelting time is shortened and the production cost is reduced.

  4. is suitable for purifying the aluminum liquid in the crucible furnace, the ladle and the static box.

  5. Surface after oxidation treatment, the service life is about 5 times of the ordinary product, widely used in the aluminum alloy casting industry.

  There is a special application in graphite products, that is, the graphite rotor. What is the graphite rotor? The purification process of liquid aluminum alloy is the main means to improve the comprehensive properties of aluminum alloy. In the purification process, mixing the purified gas and solvent and using the rotary injection of graphite rotor to melt the aluminum melt is the most advanced method in the world.

  Graphite rod support graphite rotor rotating nozzle by high purity graphite, the structure should be considered in addition to the nozzle scattered outside the bubble, the centrifugal force is produced by stirring Aluminum Alloy melt, melt into the gas nozzle and the level of spray mixing, the formation of gas / liquid flow ejected, the contact area and the contact time increases with the aluminum bubble the liquid metal, improve the degassing effect.

  The rotational speed of the graphite rotor can be controlled by the frequency converter to realize the stepless adjustment, and the maximum can be reached. Graphite rotor specifications, impeller specifications, high purity antioxidant graphite rotor has high strength, high temperature resistance, corrosion resistance and so on. In the process of purifying and degassing, the surface of the aluminum alloy liquid in the box is covered with nitrogen to cover the protection, so that the part of the graphite rotor exposing the aluminum alloy liquid is in the inert gas, so as to prevent the rotor from oxidizing at high temperature and prolong the service life of the rotor.

  The impeller shape is streamlined, which can reduce the resistance when rotating, and the friction and scouring force between the impeller and the aluminum alloy liquid is relatively small. Thus, the degassing rate is above 50%, the smelting time is shortened and the production cost is reduced. The service life of the surface is about 5 times that of the ordinary product. It is widely used in the casting industry of aluminum alloy.

Published in News

  Electric arc furnace steelmaking is based on electrodes to generate arcs, so that electric energy can be changed into heat energy in the arc, melting furnace burden and removing impurities such as sulfur and phosphorus, adding necessary elements (such as carbon, nickel, manganese, etc.) to smelt steel or alloy with various properties. Electric energy heating can accurately control the temperature of the furnace and produce low temperature waste gas. The heat efficiency of the arc steelmaking furnace is higher than that of the converter.

  Technology development has a history of about 100 years in EAF steelmaking, although other methods always face the steelmaking challenges and competition, especially the high efficiency oxygen steelmaking impact, but the proportion of steel production of EAF steelmaking in the world steel output is still rising year by year. In the early 1990s, steel produced by EAF in the world accounted for 1 / 3 of the total steel output. In some countries, EAF was the main steelmaking technology in some countries, and the proportion of steel produced by EAF smelting was 70% higher than that in Italy.

  In 1980s, widespread in the EAF steel production in continuous casting, and gradually formed a "energy-saving production process of a scrap preheating electric arc furnace smelting a refining continuous casting a continuous rolling, arc furnace is mainly used for rapid equipment scrap as raw material of steel-making. In order to fundamentally overcome the ultra high power AC arc furnace arc instability, three-phase power supply and current unbalance and severe impact on the power grid and the research of DC arc furnace, and put into industrial application on first Century 8O in the mid-1990s, DC arc furnace using only 1 root of the graphite electrode has been widely used in the world in 90s (2 with some graphite electrode DC arc furnace).

  Greatly reduce the consumption of graphite electrodes is the greatest advantage of the DC arc furnace, before the end of 1970s, AC arc furnace per ton of steel consumption of graphite electrode in 5 ~ 8kg, graphite electrode costs accounted for 10% of the total cost of steel to 15%, although taken a number of measures, so that the graphite electrode consumption decreased to 4 6kg, or production costs accounted for 7% 10%, the use of high power and ultra high power steelmaking method, electrode yak is reduced to 2 ~ 3k.g / T steel, DC arc furnace which uses only 1 graphite electrode, graphite electrode consumption can be decreased to 1.5k.g / T steel under.

  Both theory and practice show that the single consumption of graphite electrode can be reduced by 40% to 60% compared with the AC arc furnace.

Published in News
Friday, 22 September 2017 14:36

High quality graphite material

  The graphite material can be divided into coarse grain structure, fine grain structure and fine grain structure from the structure , distinguished from molding method, it mainly can be divided into vibration molding graphite ,extruded molding graphite , molded graphite and isostatic pressing graphite.

  As all we known , the molded graphite material with high purity, low ash content , its carbon content is over 99.9%, it is a good choice of making crucible and other high quality products.at the same time, it has low ash,high thermal stability and high thermal conductive.It could be used in arc furnace as heat element. The using life is longer than the metal. And it has good oxidation resistance. It is easy to install and reduce the cost. Our graphite block also could used as raw material. It could be make crucible,mould and other graphite products.

  The advantages of the graphite material:Fine grain,the grain size of our isostatic graphite material can be several micron; Homogeneous structure; High density; Excellent thermal conductivity; High mechanical strength; Proper electrical conductivity; Minimum wettability to molten metals; Grain size, ash content, bulk density, electrical resistivity, bending strength, compressive strength, all can be customized.

  The application of the our graphite materials:Molds, chutes, sleeves, sheathes, linings, etc; in continuous casting systems for making shaped steel, cast iron, copper, aluminum; Sintering molds for cemented carbides and diamond tools; Sintering molds for electronic components; Electrodes for EDM; Heaters, heat shields, crucibles, boats in some industrial furnaces (such as furnaces for pulling monocrystalline silicon or optical fibers); Bearings and seals in pumps, turbines and motors.

  Our company can provide all kinds of the graphite materials which are in different applications.please feel free to contact us if you are interested in any of our products or would like to discuss a custom order. We are looking forward to forming successful business relationships with new clients around the world in the near future.

Published in News

  Graphite materials can be divided into natural graphite and artificial graphite, natural graphite powder and because more shape so its application is limited, so the development of high pure graphite becomes more and more important; the application of high purity graphite in the photovoltaic production with the rapid development of photovoltaic industry in recent years and the rapid warming.

  With the rapid development of solar photovoltaic industry, the import of raw materials and polysilicon monocrystalline silicon solar battery demand is increasing in recent years, a large scale production of monocrystalline silicon polysilicon processing factory and processing factory as needed so like bamboo shoots after a spring rain built; production of monocrystalline silicon and polycrystalline silicon raw materials are increasing, and the high pure graphite is the raw material an important one, the development of high pure graphite also promote high-quality silicon and polysilicon production, therefore high purity graphite plays an important role in the photovoltaic industry.

  With the continuous development of solar photovoltaic industry, the production process of solar energy photovoltaic materials in the raw material needs are also increasing, so according to the development direction of the photovoltaic industry of graphite materials should be studied according to the characteristics of the photovoltaic industry characteristic, its future development direction should be from the following aspects:

  Graphite solar photovoltaic industry is in need of superfine, high purity and other characteristics, so it can be fine, high purity as the two core problems of deep processing of graphite to study, have certain effect in different ways on the purification process of crushing graphite, stripping is conducive to the protection of large scale purification of graphite, but the grinding medium corrosion loss directly influences the effect of acid purification method. The comminution and purification process should be designed as the whole process to avoid the interference of human factors and produce high purity ultrafine stone powder.

  The current photovoltaic industry in the production of graphite materials resistant to high temperature, but the service life is not long enough, the production of more supplies; hence the need for further development of new graphite material, so that it can maintain the existing high pure graphite high temperature and oxidation characteristics, can enhance the mechanical strength and prolong the service life. This can reduce the amount of graphite consumption in solar photovoltaic production, greatly reducing the cost of solar photovoltaic production.

  To carry out the research and application of high pure graphite composite materials, carbon materials, high purity graphite and isostatic graphite materials such as more and more are studied, some properties of the high pure graphite could improve materials used in photovoltaic industry production, the high pure graphite material as the foundation of the material is improved the mainstream of the future direction of development.

Published in News

  The working principle of graphite copper sleeve: general solid lubricant accounted for friction surface area 20-30%, lubrication principle of graphite self-lubricating bearing copper sleeve is in sliding friction process of shaft and bearing, graphite particles as part of transfer to the friction surface of the shaft and the bearing on the formation of a layer of relatively stable solid lubricating diaphragm. To prevent the direct adhesion of shaft and bearing wear. This combination of rationality combines the advantages and disadvantages of the metal alloy and the non-metallic antifriction material, and is complementary to each other, namely, the high carrying capacity of the metal, and the lubricity of the antifriction material. So it is especially suitable for the environment such as no refueling, less fuel, high temperature, high load or water. B: Graphite copper sleeve and self-lubricating bearing in copper sleeve as the friction surface of metal matrix is developed on the order and proper size of cavities, and embedded graphite or molybdenum disulfide as a solid lubricant with self lubricating performance products. The graphite copper sleeve has been widely used in engineering machinery, metallurgical machinery, mining machinery, locomotive frame, rolling equipment, ship machinery, mold equipment, textile machinery, such as gas turbine of low speed and heavy load, high speed and light load and other occasions.

Published in News

  There are many kinds of graphite products, such as ordinary graphite, impregnated graphite, fine graphite, high purity graphite, isostatic graphite, and a very special kind of graphite, that is, electric spark, graphite, or EDM graphite!

  EDM graphite is mainly used in the production of dies. It has excellent properties that copper metal can not match. The electric spark graphite itself has the characteristics of non-metallic material, and it also has some characteristics of metal. Electric spark graphite density is smaller than copper, light quality, can bring many benefits to production; easy processing; from hardness, electric spark graphite is 1/3 of copper metal; and conductivity is less than metal copper;

  The high temperature resistance of electric spark graphite is better than that of copper metal. The melting point of copper is more than 1300 degrees, while the melting point of electric spark graphite is about 3800 degrees. High melting point can be greatly reduced, after the electronic pulse produced by a large number of high temperature, so that melting itself, causing sublimation phenomenon. In addition, the electric spark graphite processing is simple, and the production speed is fast, and the production capacity is not to be worried!

  EDM is a new processing technology in machinery manufacturing industry, EDM of many high hardness metal processing, and processing of complex shape, high precision parts, can be used as a tool for the anode copper material, also can use graphite materials. As a tool for EDM, the graphite material of electrode must have the following conditions:

  (1) the structure is compact and the tissue is homogeneous; there should be no coarse particles and large pores;

  (2) with high mechanical strength and good processability, it can work out complex shapes or sharp angles and flakes;

  (3) the graphite tool electrode has a certain loss in the process of EDM, and this loss should be as low as possible;

  (4) the discharge characteristics are stable and the processing speed is faster. Therefore, graphite with fine grain structure or graphite with fine particle structure is generally used in EDM, and the physical properties of graphite are best isotropic. Therefore, the graphite material with fine grain structure is the most popular graphite material used in China's electrical discharge machining.

  In 2005, the domestic needs of EDM graphite is estimated to be 4000T, of which about 25% of high-grade graphite is used, and about 75% of middle and low-grade graphite is used. It is likely to rise by an annual increase of 10%. The use of imported high-grade graphite (mainly isostatic molding of isotropic graphite), accounting for about 10% of the total amount. There are many kinds of isotropic graphite for EDM abroad. They can be used in rough, semi finish, finish machining, fine machining, super fine machining and precision machining (line cutting, etc.).

Published in News

  The refractory material , graphite and graphite products have the properties of high temperature resistance and high strength. They are mainly used to make graphite crucible in metallurgical industry. Commonly it’s used as a protective agent for steel ingot in steel making.

  Graphite is often used as lubricant in mechanical industry. The lubricating oil often can not be used under the condition of high speed, high temperature and high pressure, but the graphite wear resistant material can be operated at a temperature of 200~2000 DEG C at a high sliding speed without lubricating oil. The piston cup, sealing ring and bearing which are made of graphite material are used in a lot of equipment conveying corrosive medium widely, they do not need to add lubricating oil. Graphite grease is the good lubricant in many metal processing.

  The conductive material , graphite is used for manufacturing the electrode, carbon nanotubes, carbon brush, and the positive electrode of the mercury rectifier,graphite gasket, telephone parts, TV tube coating etc.in the electrical industry .

  Graphite has good chemical stability, the graphite products after special processing with corrosion resistance, good thermal conductivity, low permeability, it is widely used in the manufacturing of the heat exchanger, the reaction tank, condenser, combustion tower, absorption tower, cooler, heater, filter and pump equipment in petrochemical industry, hydrometallurgy, acid and alkali production, synthetic fiber, paper and other industrial sectors, it can save a lot of metal materials.

  Casting, molding and high-temperature metallurgical materials because the graphite thermal expansion coefficient is small, and the capability of cold and hot change, it can be used as a mold of the glass, the use of graphite after black metal castings get precise size, smooth surface, high rate of finished products, it can be used without processing or minor processing, thus saving a lot metal.

Published in News
Thursday, 06 April 2017 12:37

The brief introduction of EDM graphite mold

  Mold in the home appliance, automobile, mechanical and electrical, aerospace and other industrial fields are increasingly becoming the main production process of industrial mass production equipment, undertake the processing of these products in the industry 60%-90% production. In recent years, the high speed milling has broken through the limitation of the traditional milling, which is difficult to process the material with high hardness, high strength and high toughness. But the EDM has high machining accuracy and surface quality, machining range, especially in the complex and precise, thin-walled, narrow, mold processing high hard materials in the advantage of high speed milling cannot be compared, so the electric discharge machining will be the main means of mould cavity machining. The graphite electrode (compared with copper) electrode consumption, discharge machining speed, good machining performance, light weight, small thermal expansion coefficient and other advantages.Compared with copper, graphite electrode has the advantages of less consumption, high discharge rate, light weight and low thermal expansion coefficient.

  Speed: Graphite discharge is 2-3 times faster than copper material, not easy to deformation, obvious advantages in the processing of thin electrodes, copper softening point at about 1000 degrees, easily deformed by heat, graphite sublimation temperature is about 3650 degrees, compared with graphite material thermal expansion coefficient of copper is only 1/30;

  Light weight: the density of the graphite is only 1/5 of the copper, large electrode discharge processing, can effectively reduce the burden of machine tools (EDM), more suitable for large mold applications;

  The loss is small: due to the C atom in the spark oil, in the process of discharge, high temperature causes the C atoms in the spark oil to be decomposed, and the protective film is formed on the surface of the graphite electrode

  Low cost: due to rising copper prices in recent years, today, the price of copper than the isotropic graphite graphite products are lower; the same volume and the price is lower than copper in thirty percent to sixty, the price is relatively stable, short-term price fluctuations are relatively small.

Published in News

  The machining quality of the graphite plate influences its service life directly.It must be processed carefully to reach the standard indicators. it must be uniform such as dipping, the resistivity must be consistent, it also can avoid a part is intact and another part is serious corrosion in the production process so that the total body waste down.

  It is the key to make a good use environment to prolong the service life of graphite anode plate. In the production process, reduce the impact, keep the working environment clean, detect the circuit on time and organizing the production at a fixed temperature, reduce the degree of oxidation of the air.

  The Matters needing attention for prolonging the service life of graphite plate:

  The larger the amount of current is, the higher the surface temperature of the graphite plate. Minimum load density (power) is recommended.

  The graphite plate should be in parallel as far as possible. the resistance of the graphite plate is high when the resistor is connected in series If the resistance value of the graphite plate is different,and it will leads to the rapid increase of the resistance of a graphite plate and the short life

  The appearance of the graphite plate will form a dense silicon oxide film after it is heated in the air, it’s a anti-oxidation maintenance film and play a life extending effect. In recent years, various kinds of coatings have been developed to avoid the cracking of graphite plates.

  The shorter of the service lift of graphite plate , the higher the use temperature , so when the furnace temperature over 1400℃, the oxidation rate accelerated ,the life shorten , we shouldn’t let the graphite plate surface temperature is too high when we use it.

Published in News
Page 1 of 3