Overview Compact Busbar Compact Busbar,Compact Busbar Duct,Compact Busbar Trunking,Electrical Bus Duct Yangzhong Huaxin Power Equipment Co.,Ltd , http://www.huaxinbusbarchina.com
Shen Zhuangxing: At present, the machine tool industry has rapidly entered a new development period characterized by digital manufacturing technology and equipment. Traditional standardization tools can no longer meet their needs, and the tool industry has thus entered “high precision, high efficiency, high reliability and "Specialized" modern tool production new pattern. The development of new tool materials, wear-resistant coatings, tool structures and digital manufacturing technologies has continued to improve.
Gao Xiang: In terms of tool technology itself, coating technology and super-hard material technology have made major breakthroughs, to give a few examples:
For the first time, the Dutch Hauzer Technology Coatings Company has produced AlTiN-Al2O3 coatings by physical vapor deposition (PVD), and Walter has introduced the corresponding tool products. The lower coating temperature (6000C) maintains the toughness of the cutting edge. AlTiN-Al2O3 coated tools have twice the cutting life of AlTiN coated tools when machining stainless steel or difficult-to-machine materials.
Practical use of super hard coatings and nano coatings. For example, Balzers' AlCrN coating has a hardness of 3200 HV and an oxidation temperature of 1100 °C. The hardness of Platit's nACo nanostructure coating reaches 4500 HV and the oxidation temperature starts at 1100 °C. The life of nano-multi-coated drill bits in cutting tests is four times that of ordinary AlTiN coatings.
The new cubic boron nitride (PCBN) tool has a hardness of 3,000 to 5,000 HV, a high temperature resistance of 1400 to 1500 ° C, good chemical stability, and low friction coefficient. PCBN inserts with holes, back angles and three-dimensional chipbreakers are available. It has been widely used in the automotive, mold industry, difficult to process cast iron and hardened steel car, milling, boring processing, not only for finishing, but also for roughing to achieve the car, milling and grinding, greatly improving the processing efficiency.
Wu Tianming: First of all, in terms of materials, for example, the rotor wheel slot milling cutter, which is widely used in the steam turbine industry, still uses high-speed steel materials due to the complicated shape of the wire. In recent years, its development has also been rapid. We introduced Japanese OSG and SANYO tools. The material has been changed to powder metallurgy high-speed steel, while the Italian wheel conveyor tool from CARBITAL uses powder metallurgy high-speed steel and powder metallurgy cemented carbide.
In terms of coating, high-speed steel is mainly PVD. Balzers coating has been developed to the sixth generation G6 coating. This AlCrN coating is very thin, but the hardness is extremely high, which can significantly reduce the wear and friction of the tool. SANYO The tool uses this coating. Of course, the life of cemented carbide tools through coatings is also increased by 2 to 3 times.
From a geometric point of view, the original 0 degree rake angle, 0 degree helix angle milling cutter is now improved to have a certain rake angle and helix angle. We bought a tool grinder from a German company and prepared for improvement.
Due to the improvement of the above three aspects, the wheel groove milling cutter gradually realizes two-in-one or even three-in-one, and only one semi-finishing knife replaces the original V-shaped knife, deepening knife and semi-finishing knife, and the processing efficiency can be improved. 2~3 times.
Yang Xiao: As far as coating is concerned, some advanced tool companies are currently trying to thicken the alumina coating to increase the hardness and ensure that it is not easy to peel off, that is, to improve the combination of coating and tool, and to improve the transition layer. Some efforts have been made to change the growth mode of the coating grains to make the coating bond more firmly. In addition, for example, some textbooks have said that the chemical coating thickness can not exceed 12μ, but now Kenner has two coating materials up to 24μ, which is also a direction. And the diversity of coating technology is now gradually able to meet the individual needs of the tool.
Our “difference†should not only be understood as an indirect gap in materials, coatings and tooling products, but also in our gaps in product technology accumulation, business management, marketing concepts, etc.
"Electromechanical Business Daily": Obviously, these new directions have always been led by foreign tool giants. The industry's right to speak has long been in the hands of others. Where is the gap between our domestic tool companies?
Gao Xiang: First of all, on the scale, we have a lot of difference with multinational companies such as Sandvik Coromant and Kennametal. Our “difference†should not only be understood as an indirect gap in materials, coatings and tooling products, but also in our product technology accumulation, corporate management, marketing concepts and so on. It is often heard that some domestic companies talk about the performance of some of their products is no different from foreign products, but it is difficult to enter the large joint venture car factory. The lack of the ability to provide a complete set of advanced tools is probably one of the reasons, and lack of development capabilities and lack of sources of technological innovation are also important reasons. Without solving these problems, our gap will widen.
Chen Ming: The first is the tool material, which is an important aspect that restricts the stability of the cutting performance of the tool. Our gap with foreign countries is not small. We have done systematic test analysis. Compared with foreign tools with different geometric shapes and material grades, the performance of domestic tools is not stable enough, and the tools will be inexplicably damaged during processing. We analyzed the reason, the original material is not uniform, and the mechanical performance index is too discrete.
Secondly, our coating technology is not enough, which restricts the healthy development of high-grade tools. Relatively speaking, the development of domestic coating technology is relatively fast, especially on the basis of digesting and absorbing foreign imported coating equipment and its processes, the domestic core technology has been mastered, and special tool products have been developed, such as Shanghai tools. The factory introduced advanced coating systems and developed a series of solid carbide and high-speed steel coated tools to enhance the competitiveness of the products.
Of course, in the final analysis, I believe that the biggest gap lies in the development concept. Many domestic enterprises often only focus on the immediate problems, but only think about how to solve the current problem of eating, lack of technical reserves and talent reserve ideas. Of course, this cannot completely blame the enterprise. At present, many enterprises do have such survival problems.
Hu Zuguang: Although I personally don't understand the exact data of the development of the machine tool industry, I can clearly feel that our gap with foreign countries in terms of tool development and technological progress is greater than that of machine tools. Nowadays, new materials, coatings and structural designs are developing very fast in the world. In a certain sense, this gap is still increasing. Including our company, the design and development of domestic enterprises is basically based on imitation, the application of new materials is only a mid-range level, and high-end tools have a large advantage in foreign countries.
Liu Xianli: From the perspective of the tool itself, I think the biggest gap is in the material. The stability of our tool does not reach the level of developed countries, and the variety is not enough, even the general tool type is not complete. Although some can imitate foreign countries, in fact, some of them can not be copied at all, and high-end products are still difficult to produce.
Yang Xiao: I personally feel deeply concerned about the gap in philosophy. The development of large foreign companies over decades or even hundreds of years makes their ideas more rational. For example, in competition, they generally do not blindly compete or repeat production. In order to develop their long-term development, they will cooperate with other manufacturers, especially in the market areas where the products that others have already occupied are not in great demand. Some domestic enterprises have repeated production, big price wars, and even at the expense of reducing the cost of cutting tools, which is not in line with the interests of users. In the end, it will only cause their own competitiveness to decline, and meager profits can only be solved in the short term. "The problem of eating" can't create enough innovation funds. Therefore, although many domestic companies can carry out imitation, they are unable to carry out original technological innovation. Therefore, many domestic companies can only follow the foreign manufacturers and lack original products. Innovation is an important magic weapon for companies to lead the market and avoid price wars.
Wu Tianming: I think the obvious difference is that the level of technological innovation is not strong. That is to say, it can be copied but not innovative. Some imitations can't be done, the materials are not improved, the coating is not considered, and the cutting angle is also No change, such a tool may soon lose the market. However, I think that in comparison, some private enterprises in China have done a good job, and they are able to actively track the international level of technology when investing in equipment.
The continuous entry of foreign companies has also brought a lot of good influences on the industry. They have met the requirements of domestic advanced manufacturing industry, and thus have promoted the improvement of domestically produced tooling levels. Foreign companies may also accelerate the reshuffle of the industry.
"Electrical and Mechanical Business News": Now big companies like Sandvik Coromant, Kenner, Iskar and so on have all entered the Chinese market, even setting up factories and building production bases in China. Will it cause the industry in the next few years? Biger impact?
Shen Zhuangxing: First of all, it should be seen that foreign-invested enterprises are helpful in modernizing Chinese manufacturing technology. Of course, it also puts a lot of pressure on Chinese companies. This is an issue that must be faced when opening up to the outside world. The key is to see whether Chinese companies can respond correctly, foster strengths and avoid weaknesses, and embark on a development path that is in line with modern technology.
Yang Xiao: I personally think that there should be a shuffling effect. Good manufacturers will move closer to the advanced level in foreign countries, and poor factories are likely to be eliminated. This depends first and foremost on the thinking of the industry and the corporate leadership. Of course, there will be other influences such as capital and talent. Another problem is that foreign companies have more and more factories in China. As the time in the Chinese market grows longer, they will know more about Chinese customers. The various concepts and models that have been directly moved from abroad will also Gradually improved to better adapt to the situation in the Chinese market, and the upgrading of products will also take into account the needs of the Chinese market, and the competitiveness in China will gradually increase. Until then, some vendors may want to catch up with them and it may be more difficult.
Chen Ming: Some people think that foreign companies compete for our labor resources and material resources, and it is undeniable that they have attracted many technicians and even high-level talents from domestic enterprises. The current market economy is open, and the continuous entry of foreign companies has brought a lot of good influence to the industry. They have met the requirements of domestic advanced manufacturing, and have therefore promoted the improvement of domestically produced tools. If you don’t advance, you will retreat. Slow progress is also a step backward.
The government should increase policy support and guidance. If domestic enterprises do not support it, the industry will indeed have difficulties.
"Electrical and Mechanical Business News": Are there any reasonable and effective ways to promote the improvement of the industry level?
Shen Zhuangxing: From the current situation, it is unrealistic to create a "tool carrier" such as Sandvik Coromant and Kenner in the short term. Enterprises should, according to their own conditions, identify the market positioning, work hard to "play advantage, focus on expertise, and strengthen service", change business ideas, and rely on cheap labor and large-scale production of low-value-added standard knives from traditional tool industries. The transition to the track of relying on scientific and technological advancement and the ingenuity of workers to provide efficient equipment and quality services for the manufacturing industry.
Can not stay in the introduction of technology and equipment, but also through various forms to strengthen exchanges and cooperation with international counterparts, such as OEM production, technical cooperation, joint ventures and even mergers and acquisitions, etc., of course, how to communicate with China and the West in the process of joint ventures and mergers and acquisitions Culture, mutual learning and absorption, so that it achieves the goal of mutual benefit and win-win, all need to explore and explore in practice.
On the other hand, it is also necessary for the government to regulate the market environment through various means, create conditions for fair competition for enterprise development, and guide in industrial policies.
Hu Zuguang: The reasons for the gap are many. Our foundation is relatively poor. In the era of planned economy, enterprises seek “big and completeâ€, the level is not high, and there is not much investment. When it comes to ways, I also feel that the government should increase policy support and guidance. It can even protect national industries like Japan and South Korea. If domestic companies do not support it, the industry will indeed have difficulties, but the level of cutting tools will not increase. The bottleneck restricts the development of manufacturing.
In the high-end products, joint ventures with foreign countries can better absorb foreign advanced technology and accelerate the cultivation of talents. After all, the purchase of equipment alone will not bring much progress, and the cost of buying technology is too high. After the joint venture, workers and technicians can receive comprehensive training from foreign parties, thus promoting the transformation of market concepts and management concepts.
Another key issue is capital investment. Funds can be accumulated or loaned by enterprises themselves, but listing is also a way to raise funds for development.
Industry-university-research cooperation is an effective way to achieve efficient cutting and optimize social resources
"Electrical and Mechanical Business News": This kind of cooperation between industry, university and research institute has gradually attracted the attention of all parties in recent years, and even mentioned the height of strategy. Is this way also a promotion for the industry?
Gao Xiang: Indeed, many foreign tool companies have very close relations with colleges and universities, or colleges and universities are their important source of technology, but for various reasons, this relationship does not seem to form a big climate.
The Chinese Knife Association has also made some attempts in the cooperation of industry, academia and research, that is, the industrialization of group drills. In 2003, we invited Wuhan University, Hunan University, Beijing Institute of Technology, Jiangsu Tiangong Group, Hainan Gaochao Bit Co., Ltd., as well as Dr. Shazi Lun, a well-known drill expert, to have two meetings to carry out some coordination work and reach The implementation outline of the group drill industrialization.
Liu Xianli: I think that the industry-university-research cooperation in the tool industry should be relatively mature, and the industry-university-research cooperation can indeed improve the level of the industry. In fact, the research and development of colleges and universities should rely on the needs of enterprises, and we have always had close cooperation with enterprises. Like ourselves, we are also doing the industrialization of CBN tools, and the cooperation between industry, university and research institutes has been well done, and some companies directly hope that we can provide some solutions.
Hu Zuguang: We have been cooperating with Shanghai Jiaotong University since 2001. At that time, we were involved in the performance evaluation of some projects. Considering the equipment and talent strength of Shanghai Jiaotong University in this respect, we came together and later set up a joint laboratory. further cooperation. Shanghai Jiaotong University has carried out a large number of experiments, establishing data information, conducting theoretical analysis and applying technical analysis, reducing many of our investment, and solving some problems for us. The two sides can also jointly develop some projects. In short, the cooperation for such a long time is very good and it is very helpful to us. Recently we have started collaborative research and development on coatings.
Chen Ming: Industry-university-research cooperation is an effective way to achieve efficient cutting and optimizing social resources, because many testing equipment and theoretical research may not be realistic for enterprises. Colleges and universities have this condition to build large platforms, and research and development work of scientific research institutions. It should serve the economy and society itself.
With the support of Shanghai and the school, we have established the Joint Laboratory of Shanghai Jiaotong University-Shanghai Tools Factory Co., Ltd. and the Shanghai Jiaotong University-Baogang Special Steel Branch Cutting Technology Research Center. Moreover, it has also established more than 20 universities, research institutes and aerospace, automobile and mold manufacturing enterprises, and established the Shanghai Cutting and Tool Coordination Group with good mutually beneficial cooperation. We have united tool development companies, workpiece material development companies and tool application companies to form a platform for industry, academia and research. This platform provides a good opportunity for all parties to exchange information and exchange talents, and achieve win-win results, so everyone's enthusiasm And initiative is very high.
In the research, we have materials in the left hand and tools in the right hand, so the stage is getting bigger and bigger, the data is generated every day, and the data is fed back to the relevant enterprises in time. At the same time, we are also accumulating data and summarizing all kinds of cutting data. To sum up, serve the entire cutting manufacturing industry in the form of a database. Moreover, the cooperation between industry, academia and research is also beneficial to our talent cultivation. Students can not only master the basic theory well, but also master the application technology in depth.
Quick Details
Place of Origin:
Jiangsu, China (Mainland)
Brand Name:
Huaxin power
Key word:
Compact Busbar Trunking
Current Rating:
200 A to 6300 A
System Voltage:
AC380V/690 V
Type:
Compact Busbar trunking
Series:
compact busbar trunking
Packaging & Delivery
Packaging Details:
Compact busbar trunking:
standard export packaging or customized packaging
Delivery Detail:
2-3 weeks
Compact Busbar Trunking
1. Current rating: 200 A to 6300 A
2. Ingress protection of IP54 & IP65
3. Excellent short circuit ratings [upto 100KA]
4. Standard lengths of 4m / 3m / 2m / 1m
5. System voltage: AC380V/690 V
6. Conductor material: high conductivity copper bar
7. Halogen free, fire retardant Class-H-Epoxy insulation
8. Tap - off units are suitable for MCCBs or SDFs or MCBs
9. Configuration of 3P3W / 3P4W / 3P5W with or without integral earth
10. Flexible system direction to meet cross arrangement
11. It can be re-used after disassemble.
Competitive Advantage
1 Well and High Quality Control
2 Prompt Delivery
3 Customer's Design and Logo are Welcome
4 Competitive Prices
5 Small Order Acceptable
6 Packaging detail: standard export packaging or customized packaging
Description
XLV series busway trunking system is advanced and energy-saving type developed by ZHENDA. It adopts British Henrob and Germany EPRESS self-piercing riveting technology, and the overall structure of enclosure are riveted together automatically, ensuring high degree of automation. The use of hydraulic pressure makes the overall strength of busway being substantially enhanced, and has a good sealing effect and anti-seepage feature.
Besides above, it has features below:
1. Flexible system direction to meet cross arrangement
2. Space saving
3. Can be re-using after disassembled.
4. High short-circuit strength and protection degree.
5. Both nut tightening and self-piercing riveting technology are available.
6. It adopts floor plates to double the heat dispersion.
7. Compact construction, good heat dispersion, low impedance, reliable and easy to installation and maintenance.
Technical Parameters
Rated current(A) 250 400 630 800 1000 1250 1350 1600 2000 2300 2500 3150 3800 4000 4500 5000
Rated voltage AC380/690V
Rated insulated voltage 660-1000V
Rated frequency 50/60Hz
Rated short-time withstand current
30(KA)
80(KA)
100(KA)
Overvoltage category/Pollution degree
III/3
Protection degree IP40,IP54,IP65
Weight(kg/m) 9 11.5 12.5 15 18 23 25 32 40 48 55 69 83 90 102 116
Impedance of relative neutral line at temperature 35°C and frequency 50Hz
Resistance 0.12 0.105 0.092 0.081 0.062 0.05 0.038 0.029 0.023 0.018 0.015 0.014 0.012 0.011 0.009 0.008
Reactor 0.051 0.045 0.039 0.033 0.027 0.022 0.019 0.014 0.011 0.009 0.008 0.007 0.006 0.005 0.004 0.004
Impedance 0.13 0.114 0.101 0.087 0.068 0.055 0.042 0.032 0.025 0.02 0.017 0.016 0.013 0.012 0.01 0.009
Comparison between enclosure and conductor section area (equivalent with aluminum enclsoure)
Current(A) PE section area
400 320%
630 274%
800 240%
1000 305%
1250 235%
1400 211%
1600 187%
2000 157%
2300 136%
2500 121%
3100 221%
3800 197%
4300 184%
5000 171%
Tap - off units are suitable for MCCBs or SDFs or MCBs
Protection unit Current(A) H(mm) W(mm) L(mm)
Fuse 16-25 310 250 500
Switch 32-160 270 360 450
200-400 340 390 550
630-800 370 550 700
Breaker 16-200 310 250 550
250-400 310 340 650
630-800 350 340 950
Where does the front come from the development strategy of China's tool industry?
In recent years, high-speed cutting and high-efficiency cutting have become hot topics in the industry. Specifically, what are the updated directions for the development of tools?