The national college entrance examination in 2011 has ended and the provincial score lines have been announced. According to data released by the Ministry of Education before the exam, the total enrollment enrollment for ordinary colleges and universities this year is approximately 9.33 million. In three years, the number of applicants for college entrance examinations in China has decreased by 1.17 million. The college entrance examination admission rate has increased from 57% in 2008 to 72% this year. For ever-expanding Chinese higher education, the continuous decline in the number of applicants for the college entrance examination should be a phenomenon worthy of studying. Some experts pointed out that if students continue to reduce the ability to make universities have a sense of crisis, it may be conducive to China's college education reform, so that college education is more pragmatic and heavier quality.
In recent years, the instrumentation industry has entered a relatively saturated and relatively competitive stage. China's instrumentation industry is also facing a severe "college entrance examination" problem. As an instrumentation person, how can we answer it?
At present, many imported high-end measuring instruments rely on 100% imports. According to statistics, the value of advanced equipment imported from foreign countries is nearly 600 billion RMB each year, of which high-end scientific instruments and medical equipment total about 100 billion RMB, and the annual growth rate is about 30. %, of which instruments with high-end technology or related to national security are forbidden to enter mainland China, so the problems we currently face are mainly due to the lack of scientific and technological content, poor innovation capability, and the chaos in the market, and the loss of domestic high-end scientific instrument industry. International competitiveness lacks strong support for major national projects.
To rely too much on traditional technology
Although traditional instruments and meters can meet the development of contemporary society for a short period of time, there are major problems, product instability, and product life-time problems. Traditional technologies cannot be updated in a timely manner, although problems that arise have an impact on production. Not very big, but it also gives companies a great deal of change. Some of the traditional technologies have been eliminated by the international community for many years, but they continue to be used in the country. One day, this lag will cause a fatal blow to the instrumentation industry.
Unwilling to invest
Although the instrumentation industry has brought a lot to the instrument {source: Yizhong International (. Com) http://. Com/zx/article/qiye-24094index. Html} great interests, but a large part of companies do not have the reason to pull out the funds, and the innovations put into instrumentation are blindly followed. It is not the enterprise's business that is a matter of innovation, it is a matter of national technology, and this idea is bound to become an obstacle A major factor in its development. Even if you find a problem, you don't want to invest a lot of money in this area.
Professional talent shortage
There are few people in China’s universities who attach importance to the curriculum of the instrumentation industry. There are serious problems in the cultivation of instrumentation talents. Due to the strong practicality of instrumentation research and development, practice is rarely implemented in learning, and it is bound to result in The vacancies in terms of talents have brought about the consequences of the disconnection of the development chain for its development.
The backwardness of technology
Domestic instrumentation adopts technologies that should have been eliminated in the past. This will not only increase the cost but also limit the root cause of its innovation and R&D. Only if it is separated from the shackles of backward technology can it better catch up with international development. Instrumentation can have a bright future.
Lack of innovation and R&D
To develop society, we must focus on technological innovation and research and development of high-end products. The innovation of instruments and meters is still far from enough. Although the country promotes scientific and technological innovation, it is only a synonym for development and a development of virtual performance in the eyes of human beings.
Businesses engage in too many promotional products
The cost of instrumentation is not high, but when it comes to the output of the customer, it will be several times or even several times higher than the production cost. The promotion cost accounts for several times of the product price, regardless of the domestic development. In terms of international competition, this is very unfavorable.
Out of high-tech support
The continuous development of high technology, but the application in the instrumentation industry is indeed a small part, although there is a certain improvement, but far less than the international water meter, all of its development must keep up with the development of science and technology, will have better Prospects.
In the future development of China's instrument industry, we must face up to the complex and difficult “college entrance examination†problems every year. These are issues that the entire industry should consider. The extent of these questions is critical to the future of domestically produced instruments. In order to change the current status of this series, the most important thing is to require the government and more organizations to provide corresponding support. Enterprises should not rely too much on traditional technologies, and vigorously introduce professional and high-quality talents for instrumentation, and increase innovation and R&D efforts. For China's instrument industry to make long-term, reliability, high-end and other aspects of development.
In recent years, the instrumentation industry has entered a relatively saturated and relatively competitive stage. China's instrumentation industry is also facing a severe "college entrance examination" problem. As an instrumentation person, how can we answer it?
At present, many imported high-end measuring instruments rely on 100% imports. According to statistics, the value of advanced equipment imported from foreign countries is nearly 600 billion RMB each year, of which high-end scientific instruments and medical equipment total about 100 billion RMB, and the annual growth rate is about 30. %, of which instruments with high-end technology or related to national security are forbidden to enter mainland China, so the problems we currently face are mainly due to the lack of scientific and technological content, poor innovation capability, and the chaos in the market, and the loss of domestic high-end scientific instrument industry. International competitiveness lacks strong support for major national projects.
To rely too much on traditional technology
Although traditional instruments and meters can meet the development of contemporary society for a short period of time, there are major problems, product instability, and product life-time problems. Traditional technologies cannot be updated in a timely manner, although problems that arise have an impact on production. Not very big, but it also gives companies a great deal of change. Some of the traditional technologies have been eliminated by the international community for many years, but they continue to be used in the country. One day, this lag will cause a fatal blow to the instrumentation industry.
Unwilling to invest
Although the instrumentation industry has brought a lot to the instrument {source: Yizhong International (. Com) http://. Com/zx/article/qiye-24094index. Html} great interests, but a large part of companies do not have the reason to pull out the funds, and the innovations put into instrumentation are blindly followed. It is not the enterprise's business that is a matter of innovation, it is a matter of national technology, and this idea is bound to become an obstacle A major factor in its development. Even if you find a problem, you don't want to invest a lot of money in this area.
Professional talent shortage
There are few people in China’s universities who attach importance to the curriculum of the instrumentation industry. There are serious problems in the cultivation of instrumentation talents. Due to the strong practicality of instrumentation research and development, practice is rarely implemented in learning, and it is bound to result in The vacancies in terms of talents have brought about the consequences of the disconnection of the development chain for its development.
The backwardness of technology
Domestic instrumentation adopts technologies that should have been eliminated in the past. This will not only increase the cost but also limit the root cause of its innovation and R&D. Only if it is separated from the shackles of backward technology can it better catch up with international development. Instrumentation can have a bright future.
Lack of innovation and R&D
To develop society, we must focus on technological innovation and research and development of high-end products. The innovation of instruments and meters is still far from enough. Although the country promotes scientific and technological innovation, it is only a synonym for development and a development of virtual performance in the eyes of human beings.
Businesses engage in too many promotional products
The cost of instrumentation is not high, but when it comes to the output of the customer, it will be several times or even several times higher than the production cost. The promotion cost accounts for several times of the product price, regardless of the domestic development. In terms of international competition, this is very unfavorable.
Out of high-tech support
The continuous development of high technology, but the application in the instrumentation industry is indeed a small part, although there is a certain improvement, but far less than the international water meter, all of its development must keep up with the development of science and technology, will have better Prospects.
In the future development of China's instrument industry, we must face up to the complex and difficult “college entrance examination†problems every year. These are issues that the entire industry should consider. The extent of these questions is critical to the future of domestically produced instruments. In order to change the current status of this series, the most important thing is to require the government and more organizations to provide corresponding support. Enterprises should not rely too much on traditional technologies, and vigorously introduce professional and high-quality talents for instrumentation, and increase innovation and R&D efforts. For China's instrument industry to make long-term, reliability, high-end and other aspects of development.
Extrusion Parallel Twin Screw Barrel
Twin screw extrusion
Simply described, the twin-screw extruder is a machine consisting of two co-penetrating and self-cleaning identical screws which are mounted on shafts and rotate in the same direction in a fixed closed housing called [barrel" . The twin-screw extruders operate continuously with very short residence times.
The parallel twin screw and the conical twin screw
According to whether the screw axis is parallel or not, the twin screws can be divided into the conical twin screw and the parallel twin screw, where the parallel twin screws are divided into fully intermeshing type, partly intermeshing type, non-engaged type, etc. In the case of parallel screws, the feed end and the die end have the same diameter.
The diameter of the screws in the conical twin-screw extruder is larger at the feed end and smaller at the die end.
Extrusion Parallel Twin Screw Barrel,Parallel Twin Screw Barrel,Twin Screw Parallel,Parallel Twin Screw
Ningbo Jinyi Precision Machinery Co., Ltd. , https://www.jinyi-machinery.com