The ocean adventures of the "Science" and "Jilong" are inseparable from this.

The fiber umbilical cord-assisted comprehensive scientific research ship "Science No." successfully completed the 2016 tropical western Pacific comprehensive survey, and solved the world problem of real-time transmission of deep-sea observation data; the special ropes completed the 5000-meter and 7000-meter deep dive in the "Jianlong" Tests and use in various formal operational tasks; "High-performance deep-sea exploration special ropes" were used on China's "Ocean No. 1" scientific research ship for 23 months, replacing foreign imported products; high-performance offshore ropes have been Successfully applied to a certain type of aircraft carrier mooring test, anchoring, and other supporting ropes on the aircraft carrier, breaking the foreign monopoly......

These “behind-the-scenes heroes” that meet the real-time transmission of deep-sea data, deep-sea calibration, submarine, deep-sea exploration, military camouflage, aircraft carrier mooring, marine pastures, and important people's livelihood needs are from Donghua University and Xuzhou Henghui. Weaving Machinery Co., Ltd., Lupu Naite Group Co., Ltd., Qingdao Hailiya Group Co., Ltd. and other units jointly completed the "high-performance special braid weaving technology and equipment and industrialization" project.

Project Name: High-performance special braid weaving technology and equipment and its industrialization

Main Completions: Sun Yize, Meng Hao, Ji Chengchang, Han Baifeng, Chen Bing, Zhang Yujing, Chen Yujie, Shen Ming, Zhang Xuming, Sun Zhijun

Main completed units: Donghua University, Xuzhou Henghui Weaving Machinery Co., Ltd., Lupu Naite Group Co., Ltd., Qingdao Hailiya Group Co., Ltd.

Awards: Second Prize of the 2018 National Science and Technology Progress Award

The project developed the world's first high-performance special braid weaving technology and series of equipment, and won the second prize of the 2018 National Science and Technology Progress Award. "When I stand on the podium, my heart is very excited. Our generation is very happy, participated in and witnessed the great changes in China's 40 years of reform and opening up. Under the great historical opportunity of national rejuvenation, as long as we are willing to work hard, Everyone can make a lot of money," said Sun Yize, a professor at Donghua University, the first finisher of the project.

Break through the bottleneck of precision molding technology

“The project started in 2008. With the rapid increase of China's comprehensive national strength, the demand for the maintenance of maritime rights and air rights and interests has been growing, resulting in a large demand for high-end technology and equipment in the deep sea, deep space and deep ground. Performance fiber is made of special weaving technology and equipment braided rope, belt, net and pipe braid. Due to its unique structure and function, it has high specific strength, high reliability, high pressure resistance, wear resistance, large size and elongation. The characteristics of precision and control are even more popular. Faced with the national major strategy and the demand orientation of important people's livelihood, it is extremely urgent to develop high-performance special braid weaving technology and equipment. First, we must solve the problem of precision molding, because only Precision molding can achieve high performance." Sun Yize told reporters. However, the precision molding technology and equipment of special woven fabrics are not monopolized by Europe and the United States for a long time, which is a blank at home and abroad, which seriously restricts the development of China's high-performance Woven Fabric industry.

Sun Yize and his team have long been committed to the research of three-dimensional fabric forming technology. In the face of technical bottlenecks such as precise molding theory blanks and difficult adjustment of process parameters, they have developed a general research idea: firstly, high-performance special braid weaving technology, including precision Molding theory, weaving process and method, key core components; secondly, develop high-performance special braid series equipment, including large-scale heavy-duty rope automatic weaving equipment, jointless buckle rope automatic braiding equipment, multi-layer rope automatic weaving equipment, 3D composite pipe automatic weaving equipment, telescopic tube and tube-derived fabric automatic weaving equipment; finally, these equipments are used to produce high-performance special woven products, such as large heavy-duty ropes, jointless buckle ropes, carbon fiber extension tubes, marine camouflage Fabrics, seismic monitoring fabrics, etc.

Jointless buckle rope knitting machine

In terms of innovation, the project established a mathematical model of braid properties and materials, structural parameters, and molding process parameters, and proposed a high-precision dynamic control method for twist and tension, which laid a theoretical foundation for digital design and precision molding of high-performance braided products. The basic weaving method of jointless buckle loop cable is proposed, which breaks through the problem of low strength, poor reliability and automatic weaving of conventional plug-in and bundled buckle cable joints. A multi-layer rope composite braiding method has been proposed, which has broken through. The problem of elongation, tension and twist regulation of various materials is solved, and the problem of precise forming of ropes with long, large size and unique functions is solved. The automatic weaving method of special tube braids is proposed, and the telescopic tube and three-dimensional are realized. Automatic weaving of composite pipes and pipe derivatives; invented the core mechanism and components of knitting machine series such as high-precision transmission mechanism and tension adaptive double compensation spindle. At the project appraisal meeting hosted by the China Textile Machinery Association in 2017, experts agreed that the project research results filled the blank of special weaving equipment at home and abroad and reached the international leading level. (Compared with project technology and similar advanced technologies at home and abroad, see Table 1)

When talking about the deepest things in the implementation of the project, Sun Yize said: "The friction and wear of high-performance fibers in complex molding processes, high-precision control of twist and tension are the most headaches for us. For example, the friction and wear of carbon fiber Hundreds of thousands of spindles are woven into non-orthogonal three-dimensional fabrics. There are hundreds of process parameters that need precise control. There are many soft quantities, which require a lot of experiments and theoretical determination. The coupling mechanism is very complicated, and there are thousands of path planning. Possible interference. How to design the optimal carrier, accurately control the trajectory of the carrier, and accurately control the tension and twist during the weaving process are the key to overcome the friction and wear problems. These problems have plagued the team members for more than a year. Every breakthrough in key technologies has condensed the team's many sleepless nights and robotic ways of working."

It is precisely because of this that at the National Science and Technology Progress Awards, Sun Yaize expressed confidence. He told reporters: "Team members have been fighting hard in the field for decades, and they are all concerned with each project. The defense is a report on the project results for us, and we are very good at the project results. confidence."

Loyalty and persistence have succeeded

It is understood that during the implementation of the project, Donghua University is mainly responsible for technology development. Henghui is mainly responsible for industrialization. Lupu Naite and Hai Liya are mainly responsible for the development and production of special equipment technology braided products, and application verification. “The cooperation with Henghui started in 2010. At that time, the processing, assembly and debugging of the automatic weaving equipment for carbon fiber structural parts preforms we developed required large-scale dedicated and high-precision indexing processing and measuring equipment, so we found Henghui. This cooperation with Henghui made me realize that the loyalty and adherence to the partners is the basis for the success of the cooperation. It also makes me feel that the company is doing well, doing well, and the entrepreneur's character. It must be good." Sun Yize said.

Three-dimensional composite pipe production line

Henghui is a weaving machinery manufacturer that produces, develops, sells and sells itself, providing a full range of weaving technology services. Enterprises pay great attention to technological innovation and use technology innovation to drive enterprises to become bigger and stronger. Han Baifeng, Chairman and General Manager of Henghui, told the reporter: "The stable "production, study and research" strategic cooperation model established by Henghui and Donghua University provides a strong theoretical foundation and technical support for the company's new product development and new technology breakthrough. Henghui's strong momentum for sustainable development."

Under the support of powerful technological innovation technology, we achieved an incremental income of 171 million yuan in innovation in 2017, and our products are exported to more than 60 countries and regions. The export earns more than 600 million US dollars. In the future, we will continue to take technology. leading the way in innovative high-quality development, increasing investment in R & D funding of scientific and technological innovation, and strive to catch up with more than the industry level of developed countries with the shortest possible time, scientific and technological power to its mission to drive the development of the industry and make greater contributions to the country Han Baifeng also clarified the importance of technological innovation in Henghui.

Three-dimensional double pipe braiding machine, woven carbon fiber pipe, belonging to high pressure, ultra high pressure pipe

At present, the project results have been large-scale industrialization, special weaving equipment accounts for more than 25% of the domestic market share, exported to more than 60 countries in Europe and America; high-performance special braided fabrics exported to more than 80 countries in Europe and America. In 2015-2017, the company added direct sales of 1.357 billion yuan and profit of 178 million yuan; indirect sales of 1.11 billion yuan and profit of 207 million yuan. Due to the uniqueness, monopoly and cost-effective advantages of project equipment and project products, it is competitive at home and abroad, and has a broad market prospect.

In the future, the demand for high-performance special braids will increase, and new demands and new industries will continue to emerge. Each sub-sector will also have a broader development space and create new application areas. The formation of new industries will promote the sustainable development of China's industrial textile industry. And innovations in the field of high-performance fiber materials are changing with each passing day, and new materials will continue to be introduced. Project technology, equipment and products should also be constantly adapted to the needs of new materials. Therefore, Sun Yize said: "The next step is to carry out continuous and in-depth systematic research on the knitting molding process, realization mechanism, control algorithm, twist and tension control for the special needs of high-performance special braids. The technology and equipment are included in the '14th Five-Year Plan' to increase the attention of entrepreneurs and researchers to lead the development of new industries."