The Ocean Explorations Of "Science" And "Dragon Dragons" Can Not Be Separated From Such A Textile Weapon.

The fiber umbilical cord assistance comprehensive research ship "science" successfully completed the 2016 tropical western Pacific comprehensive investigation, and solved the world difficult problem of real-time pmission of deep-sea observation data; special rope in the "dragon" completed 5000 m and 7000 m deep diving test, and used in all kinds of official tasks; "high performance deep sea exploration special rope" was used for 23 months in our ocean one research ship, instead of imported products; high-performance marine cable has been successfully applied to mooring test of a certain aircraft carrier, mooring, and other matching ropes on the aircraft carrier, breaking the monopoly of foreign countries.

These "behind the scenes heroes", which meet deep-sea data real-time pmission, deep-sea calibration, submersible, deep-sea exploration, military camouflage, aircraft carrier mooring, marine ranch and other important national strategies and important livelihood needs, are the "high-performance special braiding technology and equipment and industrialization" project jointly completed by Donghua University, Xuzhou Heng Hui Knitting Machinery Co., Ltd., Lu Pu Ning Group Co., Ltd. and Qingdao hailya Group Co., Ltd.

Name of the project: knitting technology and equipment for high performance special braiding and its industrialization.

The main participants are Sun Yize, Meng Chuo, Ji Chengchang, Han Baifeng, Chen Bing, Zhang Yujing, Chen Yujie, Shen Ming, Chen Yujie, and

Main completion units: Donghua University, Xuzhou Heng Hui Knitting Machinery Co., Ltd., Lu Pu Ning Group Co., Ltd., Qingdao hailya Group Co., Ltd.

Award: 2018 National Science and technology progress award two and so on.

The project has developed the international high performance special braiding technology and equipment, which has been awarded the two prize of the national science and Technology Progress Award in 2018.

"When I was on the podium, I was very excited.

Our generation is very happy to take part in and witness the great pformation of China's reform and opening up in the past 40 years.

Under the great historical opportunity of national rejuvenation, everyone will be able to shine if he is willing to work hard.

Sun Yize, a professor at Donghua University, said the first project.

Breakthrough the bottleneck of precision molding technology

"The project began in 2008. With the rapid growth of China's comprehensive national strength, the demand for maintenance of marine rights and interests and space rights and interests continued to grow, resulting in a large demand for high-end technology and equipment for deep sea, deep space and deep land.

Among them, high performance fibers braided by special braiding technology and equipment, such as ropes, belts, nets and tubing knitted fabrics, are featured with high specific strength, high reliability, high pressure resistance, abrasion resistance, large size and precise control of elongation, because of their unique structure and function.

In the face of the major national strategy and the demand orientation of important people's livelihood, it is urgent to research and develop high performance special braiding technology and equipment.

First of all, we need to solve the problem of precision molding, because only precise molding can achieve high performance.

Sun Yize told reporters.

However, the precise forming technology and equipment of special knitted fabrics are not monopolized by Europe and America for a long time, which is a blank at home and abroad, which seriously hamper the development of high performance braiding industry in China.

The research of forming technology, in the face of the technical bottlenecks such as the blank of precise forming theory and the difficulty of adjusting process parameters, has formulated the overall research thinking: first, the research of high performance special braiding technology, including the precise forming theory, weaving process and method, and key core components; secondly, the development of high performance special braiding series equipment, including the large heavy haul rope automatic braiding equipment, the automatic knitted equipment of the jointless cable rope, the automatic braiding equipment of multi-layer cable, the automatic weaving equipment of three dimensional composite pipe, the automatic braiding equipment of the telescopic tube and the tubular derivative fabric, and finally the use of these equipment to produce high performance special braided products, such as the large heavy haul rope, the jointless buckle rope, the carbon fiber expansion tube, the marine camouflage fabric, the earthquake monitoring fabric, etc. Sun Yize and his team have been working on 3D fabrics for a long time.

No joint buckle ring rope braiding machine

It has laid a theoretical foundation for the digital design and precise forming of high performance knitted products, and proposed the automatic knitting method of the jointless buckle ring cable, breaking through the problems of low strength, poor reliability, and unable to automatically weave the conventional joint inserting, binding and retaining ring cable joints, and putting forward the multi-layer rope composite braiding method, which has broken through the problems of the elongation, tension and twist adjustment and control of various materials, solved the problem of precise forming of the cables with super long, large size and unique functions, and put forward the automatic braiding method for special pipe knitted fabrics, and realized the automatic weaving of the telescopic pipes, three dimensional composite pipes and tube derivatives, and invented the high-precision pmission mechanism, the core mechanism and components of the high-precision pmission mechanism, the tension self-adapting double compensation spindles, and so on. In terms of innovation, the project establishes mathematical models of fabric properties and materials, structural parameters and molding process parameters, and proposes a high-precision dynamic control method for twist and tension.

At the appraisal meeting held by the China Textile Machinery Association in 2017, experts agreed that the project research results filled the blanks of special weaving equipment at home and abroad and reached the international leading level.

(item technology comparison with similar advanced technologies at home and abroad is shown in Table 1)

Turning to the most profound experience in the implementation of the project, Sun Yize said: "the problems of friction and wear, twisting and high precision regulation of high performance fibers in complex forming process are the most painful problems for us.

For example, the friction and wear problems of carbon fibers, hundreds of thousands of yarns weave non orthogonal 3D fabrics, there are hundreds of technological parameters to be precisely regulated, and a lot of soft quantities need to be determined by lots of experiments and theories. The coupling mechanism is very complex. There are thousands of possible interference in path planning.

How to design the optimal yarn carrier, precisely control the trajectory of the yarn carrier and accurately control the tension and twist in the weaving process is the key to overcome the problem of friction and wear.

These problems have plagued team members for over a year, and each key technology breakthrough has condensed many sleepless nights and robotic work styles of team members.

Because of this, at the national defense Award for science and technology progress award, Sun Yize showed full confidence.

He told reporters: "the team members have been fighting for a long time in the past decades. They are all focused on every progress of the project. The reply is a report on the project results for us, and we are very confident about the project results."

Loyalty and persistence create success.

It is understood that in the implementation of the project, Donghua University is mainly responsible for technology development. Heng Hui is mainly responsible for industrialization. Rupp Knight and hailia are mainly responsible for the development and production of special equipment and technology braid products, and are applied for verification.

"The cooperation with Heng Hui started in 2010. At that time, we developed large scale special processing equipment with high accuracy and accuracy for the processing, assembling and debugging of the automatic braiding equipment for the carbon fiber structure preform, so we found Heng Hui.

This cooperation with Heng Hui has made me realize that loyalty and perseverance to partners are the basis for successful cooperation.

It also makes me feel that the company is doing well and doing well, and the entrepreneur's character must be good.

Sun Yize said.

Three dimensional composite pipe production line

Heng Hui is a knitting machinery manufacturer which produces, develops, sells and sells after-sale products, providing a full range of knitting technology services.

Enterprises pay great attention to scientific and technological innovation, and drive enterprises to become bigger and stronger by using scientific and technological innovation.

Han Baifeng, chairman and general manager of Heng Hui, told reporters: "the stable mode of" industry university research "strategic cooperation established by Heng Hui and Donghua University provides a strong theoretical foundation and technical support for new product development and new technological breakthroughs of enterprises, and is a strong driving force for sustainable development of Heng Hui.

"With the support of powerful technology innovation technology, we achieved an incremental revenue of 171 million yuan in 2017, and exported over 60 countries and regions to export products for over 600 US dollars.

In the future, we will continue to take technological innovation to lead the way of high quality development. We will continuously increase investment in R & D investment in science and technology, strive to catch up with and surpass the level of industry in developed countries in the shortest time, and take the powerful nation of science and technology as our responsibility to drive the development of the industry and make greater contributions to the country.

Han Bai Feng is also clear about the importance of technological innovation in Heng Hui.

Three dimensional tube braiding machine, woven carbon fiber pipe, belongs to high pressure and super high pressure pipe.

At present, the project results have been large-scale industrialization, special textile equipment accounted for more than 25% of the domestic market share, exported to more than 60 countries, such as Europe and the United States, high performance special textile exports to Europe and the United States and other more than 80 countries.

In the past 2015-2017 years, the new direct sales volume was 1 billion 357 million yuan and the profit was 178 million yuan; the indirect sales amount was 1 billion 111 million yuan and the profit was 207 million yuan.

Because of the uniqueness, monopoly and high cost performance of the project equipment and products, it is competitive both at home and abroad, and has broad market prospects.

In the future, the demand for high-performance special knitted fabrics will increase. Meanwhile, new demands and new industries will continue to emerge. Each subdivision of the sub industry will also have broader space for development, create new applications and create new industries, thus promoting the sustainable development of China's industrial textiles industry.

In the field of high-performance fiber materials, new materials will continue to be introduced.

Project technology, equipment and products should also constantly adapt to the needs of new materials.

Therefore, Sun Yize said: "next, we need to carry out in-depth and systematic research on the special requirements of high performance special knitted fabrics in the aspects of braiding process, realization mechanism, control algorithm, twist and tension control, etc. at the same time, we hope that the state will incorporate the high-performance special braid technology and equipment into the" 14th Five-Year plan "and increase the attention of entrepreneurs and researchers, so as to guide the development of new industries.