
In the early years after the founding of the People's Republic of China, New China was in a period of unfinished business, large-scale economic recovery and construction, and a large number of large-scale backbone industrial enterprises and national defense industries required a large number of specialized instrument and meter talents. In 1952, Tianjin University and Zhejiang University took the lead in establishing " "Precision mechanical instrumentation" and "Optical Instrumentation", and gradually formed a system.
In 1958, a number of famous universities in China, such as Tsinghua University, Harbin Institute of Technology, Shanghai Jiaotong University, Southeast University, Hefei University of Technology, and Beijing University of Aeronautics and Astronautics, etc., all successively prepared to build precision instruments, and according to the Soviet Union’s model of running a school Corresponding to each instrument category, there are more than 10 specialties such as metrology instruments, optical instruments, timing instruments, analytical instruments, thermal instruments, aerospace instruments, electronic measuring instruments, and scientific instruments. With the loyalty to the Party’s education and the patriotic enthusiasm, the teachers and students have been working hard to develop. Under the difficult conditions of manpower, material resources, and financial resources, a group of batches of specialized instrumental talents cultivated by China have stepped out of the school gate to become the national economy. The backbone technical force in construction, national defense construction, and scientific research has made remarkable achievements.
For more than a decade, the predecessors in the field of instrumentation in the academic, scientific, and educational fields have conducted in-depth discussions, profound analysis, and insightful descriptions of the role of instrumentation. Famous scientists such as Wang Dazhao, Yang Jiaxuan, and Jin Guofan highly summarized and pointed out that “instrument and instrumentation is an important part of the information industry and the source of the information industryâ€, revealing the subject nature and orientation of instrumentation, and pointing out the development of instrumentation disciplines. The direction has a profound guiding significance for the development of the discipline, and it is an eternal appeal. The discipline of instrumentation has been correctly positioned, normatively narrated and the direction of development has been clarified.
The pace of development of the instrumentation professional is unprecedented. In less than 10 years, the scale of its education has roughly quadrupled. It shows good conditions for enrollment and distribution. The reasons for the major development of this major are both derived from the larger social needs and also from the social recognition of the professional education. The professional knowledge structure based on light, machine, electricity, and mathematics as the basis for cultivating talented people with wide-caliber and wide-ranging knowledge is in line with the needs of the talent market and is also in line with the booming development of information technology.
PVC High speed Auto-Recovery Door
Product Description
Recovery High Speed Door/ Self Recoverable Roller Shutter/Aoto Repair Roller Shutter Door
Advantages:The advantage of Self Reparing High Speed Doors are self-reparing,easy to clean,complete safe,energy
saving and so on. If the door curtain comes out of its guides(for example in the event of impact with a forklift),
the system will reset the cutrain back intp the guide during the next opening cycle autimatically
Product Description
PVC Curtain |
Grey,Yellow grid,Purple,Green,Light green,Black,Perforated Yellow grid,White,Blue,White grid,Sky Blue,Yellow,Orange,Red
Color curtain:0.8mmthickness. Function:insect prevention |
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Door Size |
Max Door Size: 8M Wide x 6M Height |
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Bottom Bar |
Aluminum alloy 95mm width Function:reinforce the crutain to keep the door opening without a hitch |
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Radar Sensor |
The place on the cover box. Can detect 3 meters area! Function: detect the moving thing and open the door. For the place which has more people through. |
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Photocell Sensor | Function:It's stop the door when the door is closing and someone through the door. | ||||
Drive System |
High speed door motor: Germany brand(SEW)and Our own brand Hofic.
Germany SEW motor(380V/220V 50Hz 0.75KW,1.5KW,2.2kw.) |
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Control System |
Control box:Include control system+PLC+transducer+encoder+airbag system. Brand:Japan Mitsubishi and Our own Hofic Function: all the control system are inside in it. |
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Cover Box |
Material: Stainless steel201#or304# |
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Running Speed |
Opening Speed:0.8m/s - 1.2m/s(Adjustable) Closing Speed:0.6m/s - 1.0m/s(Adjustable) |
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Opening Way |
Radar sensor+push button for People through Magnetic loop+push button for forklift through |
Main Accessories
Self-Repairing Door Curtain:
Made of reinforced PVC, with flexible weighted soft bottom edge.
The edge of curtain has continuous injection molded teeth that then move up and down in a self-lubricating
polyethylene track attached to structural galvanized side frames.
Auto Recovery Rapid Door, machine protection high speed door, machine protection door,Recovery High Speed Door/ Self Recoverable Roller Shutter/Aoto Repair Roller Shutter Door
SHENZHEN HONGFA AUTOMATIC DOOR CO., LTD , https://www.hongfahss.com