In the Central Lake market near Bishkek, Kyrgyzstan Chinese businessmen Chang is working in his operating hardware electric tools workshops. Chang said China's hardware power tools are extremely popular in central Asia.
Central Lake market is central Asia's largest wholesale and retail market, the market is assembled with over ten thousand containers. The channel in the market is complicated as a labyrinth. The first floor is used as stores, the upper is temporary warehouse. Kyrgyzstan was the importance transportation station of the ancient silk road trade. Nowadays, Kyrgyzstan after years of development have become the distributing centre of China radiated to central Asia.Chinese goods shipped to some of the biggest wholesale market first, is the local commonly known as the "bazaar", and then diverted to Kyrgyzstan and the central Asia and other countries in Eurasia.
Despite the recent Kyrgyzstan joined the Eurasian economic union, tariffs will be improved to China. But the Chinese merchant still hope with their many years on the basis of the struggle for the "area" trade unicom to offer their own strength.
Sunday, November 27, 2016
Monday, November 21, 2016
Powder sintering became one of the key research technology of titanium alloy
Titanium alloy is a kind of important structural metallic materials developed in the 1950’s, has excellent comprehensive performance. The material has characteristics like small density, light weight, heat resistance, corrosion resistance, flexibility, good elasticity and forming process etc.
Aerospace industry is the biggest consumer of titanium, titanium alloy production has very close relationship with the aerospace investment. Nearly in ten years in the 1990’s, an application for a patent falling back. Since 2000, the titanium alloy related patent quantity appeared obvious growth trend. “On one side, this shows that titanium alloy has potential research space, on the other hand, is has great relationship with our country in recent years, strengthen the related research in the field of titanium alloy.” Document information center of Chinese academy of sciences researchers Chen said.
Most analysis data shows that the technology of titanium alloy is held in Japan (41%), China (22%), the United States (14%) and Russia (8%) of the four countries, the subtotal takes 85% of the global patent.
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Aerospace industry is the biggest consumer of titanium, titanium alloy production has very close relationship with the aerospace investment. Nearly in ten years in the 1990’s, an application for a patent falling back. Since 2000, the titanium alloy related patent quantity appeared obvious growth trend. “On one side, this shows that titanium alloy has potential research space, on the other hand, is has great relationship with our country in recent years, strengthen the related research in the field of titanium alloy.” Document information center of Chinese academy of sciences researchers Chen said.
Most analysis data shows that the technology of titanium alloy is held in Japan (41%), China (22%), the United States (14%) and Russia (8%) of the four countries, the subtotal takes 85% of the global patent.
Learn more:
Wednesday, November 16, 2016
Automotive and medical MIM parts in Europe and America
Metal powder injection molding technology compared with traditional process, has high precision and uniform
organization, excellent performance and low production cost. Its products are widely used in electronic and information engineering, biology, medical equipment, office equipment, automobile, machinery, hardware, sports equipment, watch industry, weapons, aerospace industry, etc. Therefore, it is generally believed in the international that the development of the technology will lead to a revolution of parts forming and machining technology, is known as "the most popular parts forming technology" and "the forming technology of the 21st century".
Metal powder injection molding MIM technology USES the micron grade powder, can accelerate the sintering shrinkage, helps to increase mechanical properties of the materials, prolong the fatigue life of materials, and can improve the resistance to stress corrosion resistance, and magnetic performance. Global powder injection molding scale currently is still small, but it is little affected in the economic crisis, and is rising steadily. In Europe, its main application fields are cars, North America, mainly in the medical field, Asia is mainly communication products.
At present, China's consumption of iron powder and copper powder has surpassed Japan, is the first in Asia. The main application field for the future of powder metallurgy parts is in the field of automobile. From a technical perspective, the high density of powder metallurgy parts, a new powder metallurgy materials, high efficiency and high precision powder metallurgy equipment is powder metallurgy industry development trend in the future.
organization, excellent performance and low production cost. Its products are widely used in electronic and information engineering, biology, medical equipment, office equipment, automobile, machinery, hardware, sports equipment, watch industry, weapons, aerospace industry, etc. Therefore, it is generally believed in the international that the development of the technology will lead to a revolution of parts forming and machining technology, is known as "the most popular parts forming technology" and "the forming technology of the 21st century".
Metal powder injection molding MIM technology USES the micron grade powder, can accelerate the sintering shrinkage, helps to increase mechanical properties of the materials, prolong the fatigue life of materials, and can improve the resistance to stress corrosion resistance, and magnetic performance. Global powder injection molding scale currently is still small, but it is little affected in the economic crisis, and is rising steadily. In Europe, its main application fields are cars, North America, mainly in the medical field, Asia is mainly communication products.
At present, China's consumption of iron powder and copper powder has surpassed Japan, is the first in Asia. The main application field for the future of powder metallurgy parts is in the field of automobile. From a technical perspective, the high density of powder metallurgy parts, a new powder metallurgy materials, high efficiency and high precision powder metallurgy equipment is powder metallurgy industry development trend in the future.
Tuesday, November 8, 2016
China's annual output value of the powder metallurgy industry growth rate is over 30%
In recent years, China through continuous introduction of foreign advanced technology combining with self-development and innovation, makes the powder metallurgy industry and technology in China shows a tendency of rapid development. It is one of the fastest growing China's mechanical generic components, China yearly uotput of powder metallurgy industry growth rate is 35%.
Powder parts molding machine is hydraulic four-post type structure, the application is mainly powder metallurgy structural parts and machinery parts production. At the same time can also be applied to iron, copper, aluminum, stainless steel powder, ceramic powder, electronic ceramics, graphite and the forming of cemented carbide products. Pressing technology and finishing technology reached the international advanced level.
Global manufacturing is accelerating transfer to China, automobile industry, machinery manufacturing, metal industry, aerospace, instruments and meters, hardware tools, construction machinery, electronic appliances, high-tech industry rapid development. Has brought the powder metallurgy industry rare development opportunity and huge market space. In addition, the powder metallurgy industry is listed in the priority to the development and encourage foreign investment projects, the development prospect is broad.
Powder parts molding machine is hydraulic four-post type structure, the application is mainly powder metallurgy structural parts and machinery parts production. At the same time can also be applied to iron, copper, aluminum, stainless steel powder, ceramic powder, electronic ceramics, graphite and the forming of cemented carbide products. Pressing technology and finishing technology reached the international advanced level.
Global manufacturing is accelerating transfer to China, automobile industry, machinery manufacturing, metal industry, aerospace, instruments and meters, hardware tools, construction machinery, electronic appliances, high-tech industry rapid development. Has brought the powder metallurgy industry rare development opportunity and huge market space. In addition, the powder metallurgy industry is listed in the priority to the development and encourage foreign investment projects, the development prospect is broad.
Wednesday, November 2, 2016
Powder metallurgy high strength aluminum alloy
In order to further improve the performance of the aluminum alloy, nano phase and nano intermetallic compound
dispersion strengthening alloy research has aroused the concern of the national technicians. A new type of alloy
nanoparticles toughening reinforcement, will greatly improve the strength of the material, and reduce the usage amount of material. Nanoparticles toughening reinforcing material for its high strength, high toughness, low temperature superplasticity, easy processing, low density, good performance, in the aircraft, spacecraft and automobile industry has a good application prospect.
Due to the small size effect of nanometer materials and surface and interface effect caused by the increase of surface atomic activity, so the material sintering is easier. It has the advantages of low sintering temperature, short sintering time, sintered body with good sintering performance can be obtained. In general, small uniform microstructure and complete densification is requirements of nanomaterials to achieve the best performance. Traditional molding, isostatic compaction, extrusion, injection molding, explosive forming of powder metallurgy forming method can be used in nano powder molding. Pressureless sintering process is simple and is low cost. Hot pressing (HP), isostatic pressing sintering (RS) and reaction hot-pressing sintering compared with pressureless sintering, the sintering temperature is much lower and higher density can be obtained.
Microwave sintering (MS), self-propagating high temperature synthesis (SHS), plasma sintering and electric spark
sintering is the latest sintering methods developed in recent years. But because nano powder is extremely fine, its apparent density is very low, so will cause the compact density is uneven, so that the density of sintered body hard meet the theoretical density. Although nano powder has great specific surface area, and high sintering activity. Nanoparticles still grew rapidly at high temperature, and before that have not reached full densification, grain size will grow up to 100 nm. And thus has method to make block nano materials with fully densification and grain size is less than 100 nm. Therefore, the research emphasis of the preparation of nanometer materials is the control of grain growing up.
The study found that the heat forging technology can effectively overcome the lack of hot pressing. Such as 1100 ℃ can make ZrO2-3% Y2O3 fully densification, the average grain size is 85 nm. In addition, the consecutive extrusion forming and molding in instantaneous high pressure pulse can improve the compact density. Rapid sintering methods such as microwave sintering, its temperature rising (500 ℃ / min) fast, short heating time (2 min), solved the problem of the nanometer grain abnormal grew up. Sintered density, however, it is difficult to achieve theoretical density, so nanomaterials is unlikely to achieve the best mechanical properties.
At present, because of price and technology, the application of powder metallurgy of high strength aluminum alloy is mainly limited in the field of aviation, aerospace. Along with the advance of technology and development, raw material costs will continue to decline, will be applied in the automotive industry massively.
dispersion strengthening alloy research has aroused the concern of the national technicians. A new type of alloy
nanoparticles toughening reinforcement, will greatly improve the strength of the material, and reduce the usage amount of material. Nanoparticles toughening reinforcing material for its high strength, high toughness, low temperature superplasticity, easy processing, low density, good performance, in the aircraft, spacecraft and automobile industry has a good application prospect.
Due to the small size effect of nanometer materials and surface and interface effect caused by the increase of surface atomic activity, so the material sintering is easier. It has the advantages of low sintering temperature, short sintering time, sintered body with good sintering performance can be obtained. In general, small uniform microstructure and complete densification is requirements of nanomaterials to achieve the best performance. Traditional molding, isostatic compaction, extrusion, injection molding, explosive forming of powder metallurgy forming method can be used in nano powder molding. Pressureless sintering process is simple and is low cost. Hot pressing (HP), isostatic pressing sintering (RS) and reaction hot-pressing sintering compared with pressureless sintering, the sintering temperature is much lower and higher density can be obtained.
Microwave sintering (MS), self-propagating high temperature synthesis (SHS), plasma sintering and electric spark
sintering is the latest sintering methods developed in recent years. But because nano powder is extremely fine, its apparent density is very low, so will cause the compact density is uneven, so that the density of sintered body hard meet the theoretical density. Although nano powder has great specific surface area, and high sintering activity. Nanoparticles still grew rapidly at high temperature, and before that have not reached full densification, grain size will grow up to 100 nm. And thus has method to make block nano materials with fully densification and grain size is less than 100 nm. Therefore, the research emphasis of the preparation of nanometer materials is the control of grain growing up.
The study found that the heat forging technology can effectively overcome the lack of hot pressing. Such as 1100 ℃ can make ZrO2-3% Y2O3 fully densification, the average grain size is 85 nm. In addition, the consecutive extrusion forming and molding in instantaneous high pressure pulse can improve the compact density. Rapid sintering methods such as microwave sintering, its temperature rising (500 ℃ / min) fast, short heating time (2 min), solved the problem of the nanometer grain abnormal grew up. Sintered density, however, it is difficult to achieve theoretical density, so nanomaterials is unlikely to achieve the best mechanical properties.
At present, because of price and technology, the application of powder metallurgy of high strength aluminum alloy is mainly limited in the field of aviation, aerospace. Along with the advance of technology and development, raw material costs will continue to decline, will be applied in the automotive industry massively.
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