News & Events
Powder Metallurgy Drives the New Economy of Jiangxi Shangli
In Jiangxi Province Shangli County advanced equipment manufacturing (powder metallurgy) industrial park Tianqi auto parts production workshop, the same is a hot scene: a new car gear, from 450 tons of Swiss imports powder molding press spit out. Pick up the product force a break, flew into a few pieces. Is it producing a substandard product?
"Do not make a fuss, this is just the powder after forming the rough billet. These gears also need to go through sintering, cooling and other processes in order to become qualified products. At that time, you are taking a hammer can not be broken." Side of the Xugong smiled Said. Tianqi Auto Parts mainly rely on the advanced manufacturing process of powder metallurgy to prepare automobile engine precision parts, product supply hippocampus, Honda, JAC and other well-known automobile manufacturers. A gear, sprocket powder metallurgy parts production line, has installed two 450 tons, 500 tons of powder metallurgy press machine, is expected to reach 5 million annual output. The second phase will be the new horse two rotor (shell) powder metallurgy parts production line, soft magnetic materials spool powder metallurgy parts production line.
In recent years, Jiangxi Shangli County adhere to perseverance to promote the powder metallurgy industry has become the development of new kinetic energy, new pillars. On the one hand, with the Central South University signed a powder metallurgy industry science and technology park (Central South University Science and Technology Parks) agreement, in Shangli County advanced equipment manufacturing (powder metallurgy) industrial base set up "Huang Boyun academician workstation", vigorously promote production and research cooperation, Industry strong combination. On the other hand, relying on the powder metallurgy industry base approved the national Torch Program characteristics of industrial base, the provincial industrial park favorable opportunity to actively docking the Yangtze River Delta, Pearl River Delta, Chang-Zhu-Tan, Beijing-Tianjin-Hebei and other key areas, closely industrial development trend Take the initiative to go out investment, promote industrial agglomeration, promote the development of the industry.
"We have the country's first powder metallurgy industry characteristics base, has introduced powder metallurgy project 13, the first half of the main business income of 32.12 billion yuan." According to Shangli County Party Secretary Xiaoni Na introduced recently on the county will be held in Shanghai and other places Powder metallurgy industry special investment promotion, boost the powder metallurgy industry cluster.
3C diamond tool in the Yellow River whirlwind research and development success
Smaller product shell applications, the most used material is a mixture of aluminum and plastic, and diamond PCB tools are widely used in the processing of these two materials: non-ferrous metals and other alloys, fiber and other plastic.
The Yellow River whirlwind to introduce Germany, the United Kingdom and other countries advanced high-end manufacturing equipment, independent research and development technology, forming a matching PCD tool supply capacity: edge contour accuracy of the largest collapse up to 2um; unique tool design to prevent the use of shock Knife; precision beating up to 3 um or less, complex contour accuracy is less than 0.01mm. For mobile phones and other consumer electronics products to provide a comprehensive shape of the effective solution.
Shan Gao launched a new shock absorption system to significantly improve tool life
As large and complex workpieces with deep cavities become increasingly common, manufacturers must overcome difficulties and use long overhanging tools to process difficult-to-reach areas. In these cases, traditional processing methods are economically unbearable because strong vibrations can affect the cutting process. This will make the workpiece has been processed on the surface of the strip marks or cloth-like traces, so that a significant decline in surface finish, but also the machine tool, fixture in the connection parts loose, shorten the machine life, affecting the workpiece in the fixture in the correct positioning. In addition, due to vibration, it is bound to reduce the cutting speed, damage to cutting tools, reduce productivity, resulting in noise pollution.
In the past, vibration was reduced or eliminated by reducing the cutting speed, reducing the amount of cutting, or reducing the feed rate, but the use of this method would reduce the efficiency.
SECO's patented STEADYLINE® vibration damping system offers a new solution. The system built-in vibration reduction mechanism can inhibit the vibration from the tool to the handle. The damper prevents vibration from passing along the shank, thereby limiting the bending deformation of the cutting assembly. As a result, the dynamic stiffness of the STEADYLINE® Shock Absorber is threefold compared to the equivalent overall shank. Even under extreme cutting conditions, high stability can be ensured while significantly increasing chip removal. Standard tool holders with STEADYLINE® damping systems provide a variety of interfaces to meet the needs of turning, milling, boring, threading and other applications. The use of Steadyline in your processing will increase productivity, improve surface roughness and significantly extend the life of the tool and machine spindle.
Head to the deep sea to explore the multi-billion dollar rich cobalt shell mining area
Seafloor hydrothermal, The earth has a hot core, a place where energy is concentrated, and in its path to death, it is constantly being released from the inside out, releasing this energy in various ways. It's a completely natural process. Human beings try to understand the earth and understand our own living environment by knowing each of these ways and every detail of this natural process. In these ways, the earliest known is the volcano eruption, because it is so thunderous, some also caused great harm to mankind. In the 1970s, the discovery of hydrothermal activity opened another window on earth. Unlike the short and violent eruptions, the hydrothermal activity continues to provide us with deep information about the earth. While we were delighted to focus on the window, we found that it was slowly but constantly adjusting our living environment, making it a necessity for us to study the study of hydrothermal activity. What is the study of the cobalt crust? Rich cobalt crust is growing in the bottom of the sea and a shell on the surface of the rocks, or debris from sediment, mainly composed of iron and manganese oxides, color black like coal, the light brittle, porous structure, surface is often covered with the bud nodular, thickness is usually a few millimeters to several centimeters. According to the data, cobalt oxide can be as high as 2 percent, and is 20 times more than the cobalt deposit in the most famous cobalt deposit in China. According to incomplete statistics, only the volcanic tectonic uplift belt in western Pacific, the potential resources in rich cobalt crust deposit of up to 1 billion t, cobalt metal quantity of millions of tons, economic worth more than $100 billion. Therefore, oceanic cobalt crust is considered to be a potential source of cobalt in the future.
Research significance Cobalt-rich crust is another important seabed mineral resource after polymetallic nodule. Because of its rich Co, Mn, Cu, Ni, Pt and rare earth elements and other useful metals, the resource is large and has high economic value. Some developed countries have invested heavily in research and research to finance the cobalt crust. Since the 1980s, the investigation and research of cobalt rich crust has been flourishing. At present, the cobalt resources on land exist mainly as the associated elements of copper and nickel deposit, and the global distribution is extremely uneven. Cobalt is known as the new metal of the 21st century, and in the modern industry it is becoming more and more widely used. In terms of our country, according to 1990 statistics, the amount of cobalt in our country is 400t, and the amount of cobalt is 1000t annually, most of which depends on imports. The amount of cobalt that can be mined in our country is predicted to be 30. There is a large amount of cobalt in the cobalt-rich crust, and it is predicted that the undersea cobalt crust may be commercially developed before polymetallic nodule. In addition to the great potential economic value of cobalt rich crust, cobalt rich crust has significant scientific research value. The cobalt-rich crust is mainly distributed in the top of the CCD, the top of the sea, the top and the slope of the top 500 ~ 3500m. In the Pacific, the sea mountains, sea, widely distributed in the tropical and subtropical Pacific area, including line islands and Kiribati in the Pacific Ocean seamount, Marshall islands, tuamotu archipelago and Magellan sea mountains, etc. Most of these are controlled by faulted structures, which originated in the area of the super-mantle plume in the current French Polynesia, and formed in the late cretaceous period. Cobalt crust is rich in certain geological background and the formed under the background of the ancient ocean, and often formed in deep sea mountains or deep sea basin, thus the study of its metallogenic environment and mechanism, has high scientific value, scientists can make further understanding and understanding to the mountains, sea, sea water deep source - rock reaction and metal mineralization enrichment process and the microbial mineralization, and the issue has still not been perfect solution, is a hot spot in the current study and research in the field of oceanography.
In addition, the rich cobalt crust as a kind of water into sedimentary mineral, its itself in the process of the growth of the long record a wealth of ancient Marine environment information, especially can make up for sediment discontinuities cause missing records of ancient Marine environment. Therefore, the cobalt rich crust is one of the main research objects that geologists have studied since the recent period. Ocean tectonic evolution are studied by using rich cobalt crust, for example, isotope tracer, paleoclimatology, ancient ocean chemical and isotopic characteristics of sea water, the ancient circulation patterns (isotope tracer), ancient water chemistry, the ancient monsoon (records) in the eolian clastic particles, China's ancient erosion rate (isotope tracer), history of hydrothermal activity (isotope, tracer chemicals), the ancient sea water pH and temperature (isotope tracer), history of extraterrestrial material input (such as isotope, tracer chemicals), currently using isotope tracer including beryllium, nd, pb, hafnium, osmium, lithium, boron, and uranium series, chemical tracer including barium, cobalt, platinum, lithium and rare earth, etc. In particular, their formation tends to be closely related to the strong and flowing water of the bottom water of the South Pole and the opening and closing of the watercourse, so it can be used to study the circulation of deep water and the opening and closing of watercourses of the bottom water of Antarctica. It can be seen that the significance of the investigation and related research on the development of cobalt crust in China is obvious. Because our country at the bottom of the sea rich cobalt crust started late, investigation and research on its formation mechanism, distribution rule, the constraint factors is not very clear, therefore, on the bottom of the sea rich cobalt crust origin and distribution of research is very necessary.
The research status On the basis of Marine investigation, scholars at home and abroad have studied the causes, distribution and other aspects of oceanic rich cobalt crust, and have gained new understanding in many aspects. For example, used to think that the ore-forming materials mainly come from consolidation of rich cobalt crust of basalt, the cause of rich cobalt crust only and in situ of basalt, but after the Magellan seamounts of rich cobalt crust chemical composition analysis showed that cobalt rich crust of rare earth elements and basalt no important genetic relationships between rare earth elements. The rare earth elements of the cobalt are mainly from seawater, not basalt. In addition, the CC area of polymetallic nodules chemical analysis data show that the lead isotope composition and the eastern Pacific sea hydrothermal sulfide lead isotopic compositions of almost unanimously, explain polymetallic nodules inherited the composition characteristics of hydrothermal sulfide, thus early chicken friends put forward, such as mid-ocean ridge activity could provide ore-forming materials directly to the Pacific mining area. This view is being recognized and accepted. It should be pointed out, this is a key in the study of ocean rich cobalt crust, the future is bound to attract more people to join in the discussion of this problem, this problem) solution (the source of ore-forming materials problem, help to our country and even the world's rich cobalt crust research on a new step. At present, the rich cobalt crust research mainly concentrated in the seamount crusting of the distribution characteristics and its relationship with seamounts structure and hot spots in the plate, the crust source of ore-forming materials, the influence of the bedrock of iron and manganese crust formation distribution, crust formation mechanism and application in the fields of paleoceanography can on the basis of the inversion of the crust formation environment, also can further explore the change of crust development area of ancient Marine environment and the world changes in ocean circulation patterns and ancient geography, climate change, thus will crust growth and ancient Marine environment and global climate change. In recent years, iron and manganese crust research has become a paleoceanography and a very active in the field of global change research hot topic, and it will be an important direction of further research in the future. Although currently crust in the mountain has obtained certain achievements and knowledge study, however, due to the complex seabed environment and limited conditions of science and technology, there are still many important problems in the research fields need to be addressed, especially in the crust causes and formation mechanism of comprehensive research and crusting of the ancient Marine environment applications. The hotspots and difficulties are mainly focused on the origin of the crust and the environmental record of the ancient Marine environment, especially the extraction of typical indexes and the inversion of high resolution ancient Marine environmental records.
The PLUME problem is an old problem compared with the cobalt-rich crust. The PLUME study is linked to the modern undersea hydrothermal activity. As early as 1979, RISE Project Group was found in 21 ° N EPR PLUME. The PLUME was later found in the eastern Pacific Ocean, the south Pacific Ocean ridge, the mid-atlantic ridge, the mid-ocean ridge and the western Pacific rim. In 1996, the United States carried out a special PLUME survey on the east Pacific Ocean. The voyage took more than 60 days to observe a PLUME and obtained a lot of data about the abnormal and PLUME morphology of the PLUME, and observed the rotation of the PLUME. Speer studied the morphology and behavior of PLUME, and further discussed the spin phenomenon of PLUME. There has been little discussion about the relationship between PLUME and oceanic cobalt. The Antarctic bottom flow is very important in this problem. Halbach (1968) described the Antarctic undercurrents as having been described in the early days of the South Pole, and the Antarctic bottom stream was divided into two branches in the direction of Samoa's watercourse northward into the middle Pacific: one coastal mountain to the north; Another deep water line along the lane island chain enters the eastern Pacific basin and divides into two. Because of the different branches of the Antarctic bottom flow and flow in the middle and eastern Pacific Ocean area lead to different seabed scouring pattern and sedimentary characteristics, in the shallow formation characteristics and the "east" "west" two village has performance. Many scholars in China have paid great attention to the sedimentary characteristics and environmental impact of the Antarctic bottom stream. In addition, the multiple of the society for ocean voyage of ocean survey, and the application of deep multi-beam technology to make our country get the submarine topography of more detailed information, which made the future more accurate ocean circulation simulation study possible.