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1, Material: 20CrMnTi
2, Pull stud is mainly used for connet the tool spindle and tool holder
3, the type: Bt Pull Stud, SK pull stud, ISO7388 Pull stud, CAT pull stud, Mazak Pull Stud, MTB Pull Stud, NT pull stud
4, hardness: 56-60HRC
5, Surface blackening, grinding
Key technology innovation and application identification of serialized shallow water multi-beam sounding sonar
[ Instrument Network Instrument Development ] Recently, the research project of “Series of Shallow Water Multi-beam Sounding and Sonar Key Technology Innovation and Application†led by Professor Li Haisen of Harbin Engineering University led the appraisal by the organization organized by the Defense Science and Technology Office of Heilongjiang Province. It believes that the project has filled a number of domestic gaps, and the overall level has reached international advanced level. Many of the key technologies have reached the international leading level. The complete independent and independent intellectual property rights have completely broken the long-term international blockade of China's high-end shallow-water multi-beam sounding sonar technology. .
The result was completed on the basis of the H/HCS-017 strip sounder in China's first medium-water multi-beam sounding system (Navy model) during the “Eighth Five-Year Plan†period of the Harbin Engineering Project. Leading the joint efforts of Beijing Haizhuo Tongchuang Technology Co., Ltd., Shandong University of Science and Technology, China Shipbuilding Industry Corporation Seventh Five-Year Research Institute, Hohai University, Suzhou Shenguangda Underwater Detection Instrument Co., Ltd. The project is funded by the National 863 Program, the International Cooperation Program of the Ministry of Science and Technology, and the National Natural Science Foundation Instrument Special Project.
After ten years of research, the project broke through the “high-precision azimuth estimation of shallow water multi-beam sounding sonarâ€, “synthesis processing along the track to synthetic apertureâ€, “no installation constraint-free calibrationâ€, “multi-resolution three-dimensional visualization of massive seabed topographic informationâ€â€ Key technologies such as sonar image artificial intelligence interpretation have realized high-precision, ultra-wide coverage, multi-functional integrated measurement, series development of equipment, mass production and popularization applications, and the core of minimum sounding depth, resolution, maximum coverage fan, etc. The technical indicators have reached the international leading level, making China one of the few countries that have mastered the core technology of high-end shallow-water multi-beam sounding sonar after the United States and Norway.
At present, the project has applied for 61 patents (39 authorizations), obtained 25 software copyrights, published 5 monographs, formulated 1 industry standard, 1 verification procedure, 1 enterprise standard, and published 198 papers (SCI/EI search). 107 articles).
The appraisal committee unanimously agreed that the project has filled a number of domestic gaps, and the overall level has reached international advanced level. Many of the key technologies have reached the international leading level. The complete independent and independent intellectual property rights have completely broken the long-term international high-end shallow water multi-beam measurement. Deeply slamming the blockade of technology.
At present, the research results of the project have played a prominent role in the application of the boundary between China and Russia, the site selection of the Heilongjiang navigation mark, and the dredging of the Beijing-Hangzhou Grand Canal. The social benefits are significant.
(Source: Science and Technology Daily, Harbin Engineering University, China News Network)