(1) innovative contribution to cold bending processing technology of ship ribs
1. invented "cold bending machine for ribs based on pure bending principle", and 1980 won the third prize of national invention. Appraised by the Ministry of Communications, "The production and use show that the cold bending method based on the three-point principle has better forming quality, higher processing quality and better service performance, which is an innovation in China", and the machine has formed products and exported them.
2. Invented the "CNC cold bending chord measuring method and detecting mechanism" and won the third prize of 1985 national invention. According to the appraisal of the Ministry of Communications, "Tandem method and its detection system are the first at home and abroad, and they are the innovation of cold bending technology of ribs. It is recommended that the higher authorities promote it to maintain China's international advanced level in this field. "
3. Put forward "Step-by-step bending method", and the evaluation of the paper is: "He summarized and analyzed the law of springback through a large number of experiments, and designed the step-by-step bending method, which laid a theoretical foundation for the automatic bending technology of profiles and provided a simple and practical method. Production practice has proved that the theory and method of profile bending springback established by the author have extremely important practical value and popularization value for solving the automatic bending forming of profiles. "
4. In cooperation with Shanghai Shipyard, the computer control of the three-fulcrum cold bending machine commonly used in shipyards was completed, and it won the second prize of CSSC Science and Technology Progress in 1988. For many years, major shipbuilding countries have attached great importance to the research on its automatic control, but due to improper handling of key issues of the control model, it has not achieved results. Using the new mathematical model, Professor Wang's research team successfully reformed the large-scale 400-ton cold bending machine imported from Japan by 1983 Shanghai Shipyard. The General Appraisal Committee of CSSC thinks: "The numerical control system of the three-fulcrum rib cold bending machine is the first in China, and the rib processing technology and quality with this system have reached the international advanced level. This study is innovative in technology introduction and transformation. It has made great contributions to promoting the progress of shipbuilding processing technology. "
5. The research and development of "Intelligent Micro-control Cold Bending Machine for Ribs" completed in cooperation with CSSC Technology Research Institute won the second prize of CSSC Science and Technology Progress Award 1993. According to the overall evaluation of CSSC, "the machine adopts adaptive variable step bending control mode, which has made breakthrough progress in control, has originality and reached the international advanced level, and has made great contributions to the technological progress of China's shipbuilding industry."
6. In 2007, the "cold bending rib processing robot" was developed, which integrated advanced processing technology, measurement technology, modern information technology and control technology, and took the lead in realizing the automation and digitization of the whole rib processing process in the world. This is the first new ship processing equipment with independent intellectual property rights in China. The project has advanced technology, good practicability, high maturity and outstanding advantages, reaching the international leading level. "Frame cold bending robot" has made new contributions to the development of digital technology in China's shipbuilding industry.
A series of research and inventions have solved the related theories and key technologies of cold bending of ribs, and successfully developed the numerical control cold bending machine. This is a major breakthrough in the development of rib processing to automation, and plays a key role in changing the backward rib processing technology and poor working conditions in China from mechanization to automation. In 2007, the CNC cold bending machine for ribs in China has formed products, which have been used by many shipyards. The machining accuracy of ribs is several times higher than that of the high-precision CNC cold bending machine of IMG Company in Germany at the same time, which has produced great social and economic benefits. It shows that China is at the international leading level in this technical field.
(2) Contribution to elbow technology.
1. Put forward the law of springback and elongation of cold bending pipe of pipe bender for the first time, and won the second prize of scientific and technological progress of Ministry of Communications 1998. Numerical control pipe bender has been used in shipyards at home and abroad for many years, but the problem of springback and elongation in pipe processing has not been solved for a long time, which seriously affects the accuracy and technical progress of pipe bending. Through years of field research on elbow, a large number of springback and elongation data have been obtained. Through analysis and calculation, the law of springback and elongation of elbow is summarized, and the correctness of the experimental law is further demonstrated theoretically. The Appraisal Society of Hubei Province thinks: "It is more innovative than previous studies to describe the springback law of pipe itself as θ=K 1θ0+C 1; The description of pipeline elongation law is δL = k2θ0+C2, which is not found in previous literature. The research results have important academic value and application prospect, which can provide new theoretical basis and scientific guidance for the progress of cold-formed pipe processing technology. The pipe elongation law of the elbow of the proposed pipe bender is the first in the world, and the research project has reached the international leading level. "
2. Invented the "Intelligent Measuring Instrument for Springback and Elongation of Bends", and obtained the patent right of China in 1997. This instrument is specially designed and invented for measuring the springback and elongation of cold-formed pipe of pipe bender. This instrument is convenient and simple because it can measure the law of tube springback and elongation under given conditions on the spot of pipe bender. The springback law can be supplied to the pipe bender as springback compensation, and the elongation law can be supplied to the no-margin bending process, and the flange is welded first and then bent, and the feed of the pipe bender is controlled as the calculation basis. Many sets have been popularized and applied. In 2000, he won the second prize of scientific and technological progress of the Ministry of Education. 200 1 won the third prize of scientific and technological progress in Hubei province.
The above research and creation make elbow processing no longer rely on manual experience, solve the long-standing technical problem of elbow springback and elongation, provide accurate processing data for CNC pipe bender, effectively ensure the quality and accuracy of elbow of CNC pipe bender, provide theoretical basis and scientific guidance for the development of elbow technology to new processes such as elbow without allowance, flange welding first and then bending, and promote the technical progress of pipeline production. It is helpful to realize the technical progress of pipeline assembly line production.
(3) Publishing the monograph "Processing Principles of Ship Steel Materials"
1993 was published by Dalian Maritime College Press in April. The comment is: "He has deep research and attainments in ship steel processing. The book "Principles of Ship Steel Processing" is written by the author based on years of teaching and scientific research practice. This book is compiled and published for the first time in the Document Catalogue of Ship and Ocean Engineering. Based on the principle of metal plastic deformation and combined with production practice, this book discusses in detail the theoretical analysis, calculation methods and experimental methods of material formability in the main working procedures of steel processing for ships and marine structures. Rigorous and comprehensive, closely related to the characteristics of shipbuilding specialty, infiltrating the author's years of teaching and scientific research experience, easy to understand. As a teaching material for shipbuilding technology and equipment, ship engineering and a reference book for engineers and technicians engaged in the design and manufacture of ships and marine structures, it will certainly be welcomed. However, in the past, there was no professional book suitable for steel processing for ships and offshore structures, which brought a lot of inconvenience to the students and technicians of related majors in their study and work. Therefore, the publication of the book "Processing Principles of Ship Steel Materials" is timely and necessary. " Publishing the textbook Shipbuilding Machinery and Equipment; He published more than 40 academic papers, which enriched the theory of plastic processing and promoted the progress of ship steel processing technology.
(d) Innovation of direct transportation technology for ores in the Yangtze River.
In the past, the two-way transportation mode of imported ore: ore was transported from Beilun to the lower reaches of the Yangtze River by seagoing vessels, reprinted to Yangtze River barges, and then transported to Wuhan Iron and Steel Industrial Port.
The new mode of "river-sea direct barge fleet" transportation of imported ore is put forward: the mature marine pusher fleet technology and advanced large pusher fleet technology are effectively and scientifically combined in the river reach to form a river-sea direct barge fleet to complete the river-sea direct transportation of imported ore.
After the implementation of WISCO and Masteel, the two-way transportation of ore was changed to one-way transportation, which reduced transit links, saved freight 10.8 yuan/ton, and reduced cargo loss and environmental pollution by 0.5%. With the increasing demand for imported ore, if WISCO's new transportation capacity is 6,543.8+0.5 million tons, the annual freight can be saved as high as 6,543.8+0.6 million yuan, and its social and economic benefits are very remarkable. Practice shows that the river-sea direct barge transportation mode is beneficial to the river-sea direct transportation of T-channel in China, and its potential benefits are particularly huge.
"Study on the Scheme of the Yangtze River Ore Transportation System", 1999 won the third prize of the Ministry of Communications for scientific and technological progress.
The project "Iron ore barge fleet and ship transformation test in WISCO" was appraised by Hubei Science and Technology Department: "It is a technological innovation to successfully change the existing two-way transportation of ore into the river into one-way transportation, and the overall technology of the research results has reached the international advanced level." 200 1 won the second prize of scientific and technological progress in Hubei province, which contributed to the direct transportation of ore between rivers and seas in China.