Industry News

The reason why German industry is strong also stems from the solid foundation research of research universities and their close integration with enterprises in product application research; from the unique productization and industrialization incubation role played by the strong engineering technology capabilities of research institutes in the development of new products in enterprises; and from the practical cooperation of value recognition advantages and efficient collaboration among stakeholders in the industrial chain. "Recently, Lv Chao, the rotating executive chairman of the Gear Transmission Industry Branch of the China Europe Association and chairman of Tianjin Tianhai Synchronous Group Co., Ltd., said at the" 2017 China Gear Industry Market Demand Technical Support and Industry Finance Cooperation Seminar "held in Hanzhong, Shaanxi that the attending representatives focused on the theme of" strengthening foundation, collaborative innovation "and discussed traditional gears. How is the industry developing? The topic of how to transform the basic industry on which automotive transmissions rely has been hotly discussed.

The weak industrial foundation capacity seriously restricts the innovative development of the manufacturing industry

Lv Chao believes that the reason why German industry is strong lies in always adhering to the manufacturing industry as the foundation of the country, always adhering to the industrial structure with manufacturing as the mainstay, and always prioritizing finance to serve the manufacturing industry and its innovative activities. Through communication with the German side, we have gained a deeper understanding that additive manufacturing technology can solve large and complex parts.

This is Lv Chao's experience of conducting multiple inspections and in-depth exchanges with German enterprises in the past two years. He said, "Made in China 2025 aims to strengthen industrial basic capabilities, including core basic components (components), advanced basic processes, key basic materials, and industrial technology foundations, as a strategic task for China to achieve a strong manufacturing country; However, the weak industrial foundation severely restricts the innovative development of China's manufacturing industry and the improvement of product quality. ”

The development of high-tech and strategic industries requires long-term accumulation

Liu Peiwen, Deputy Secretary General of the China Europe Economic and Technological Cooperation Association, said at the meeting, "Domestic enterprises should adopt more strategies of opening up a second growth curve to promote the development of high-tech and strategic industries. The development of high-tech and strategic industries often requires long-term experience accumulation. The entire industry and related enterprises need to maintain the determination to focus on and patiently develop, and need patience, inheritance, and persistence

Liu Peiwen said that the development of high-tech and strategic emerging industries presents the following characteristics: firstly, the highlights of technological innovation are diverse, and the improvement of quality and efficiency is steadily advancing, but the overall innovation capability still needs to be further improved; Secondly, the differentiation within industries and fields is becoming increasingly prominent and will persist for a long time; Thirdly, there are new ways to support the development of industries through finance, but the problems of difficult and expensive financing still persist; Fourthly, corresponding international mergers and acquisitions have enhanced the image of domestic enterprises, and outward investment has strengthened the development capabilities of domestic enterprises.

More and more research institutes and enterprises are attaching importance to basic research and development

Under the leadership of Academician Wang Huaming, the National Engineering Laboratory for Additive Manufacturing of Large Metal Components of Beijing University of Aeronautics and Astronautics has won the first prize of the "the State Technological Innovation Award" and other awards in the application of additive manufacturing (3D printing) technology and high-performance large-scale metal component additive manufacturing technology. Dr. Tang Haibo, who represented Academician Wang in this speech, introduced that from the perspective of the gear and bearing industry, through the 3D printing technology of additive manufacturing, gear materials can have high bending fatigue strength and contact fatigue strength, sufficient hardness and wear resistance on the tooth surface, and good strength and toughness in the core of the parts. In terms of gear manufacturing technology, additive 3D printing can achieve high precision, high quality, high efficiency, and green environmental protection. At the same time, the metallurgical defects and performance of large gear castings/forgings can be correspondingly restricted, making the tooth surface more load-bearing and reliable. From the perspective of development trends, additive manufacturing has solved the challenges of large-scale, high-quality, and high-performance in traditional metallurgy, enabling multi material/gradient high-performance, alternating manufacturing and remanufacturing, and integrating structure and function.

The person in charge of Hanjiang Tool Factory (first from the right) introduces the product research and development situation to the attending representatives

Zhang Zhigang, from the Key Laboratory of Advanced Manufacturing Technology for Automotive Parts at the School of Vehicle Engineering, Chongqing University of Technology, introduced at the meeting that "the durability testing technology and equipment for gearboxes that we have led the research and development of can be applied to the main testing scope, including fatigue life testing, transmission efficiency testing, high-speed testing, temperature rise testing, reverse drag testing, torque conversion testing, type testing, static torsion testing, cyclic working condition testing, basic performance testing, practical performance testing, user-defined testing, etc. Currently, this testing equipment is not only used in the testing technology field of passenger and commercial vehicle transmissions, but has also broken through the testing technology of 3.5 MW wind turbine gearboxes and high-speed train gearboxes

The NVH problem has always been a technical difficulty and bottleneck that restricts the transformation of China's independent brand gearboxes into high-end brands. The NVH test analysis technology and equipment for gearboxes, independently developed and manufactured by Chongqing University of Technology, focuses on typical NVH problems such as howling, knocking, and abnormal noise in gearboxes around transmissions and drive axles. We have mastered the NVH test methods, evaluation methods, sound source identification technology, sound source control and optimization methods, and NVH test equipment development technology for transmissions and drive axles, and formed a database of NVH for transmissions and drive axles. It is reported that the testing equipment has already cooperated with several domestic independent brand host enterprises such as Chongqing Qingshan, Jianghuai Automobile, Sichuan Hyundai, etc., successfully solving the NVH problems of multiple transmissions and drive axles.

In recent years, with the rise of domestic research and development capabilities, many domestic brand host manufacturers have completely changed their previous mindset of only focusing on imported equipment. Domestic testing and testing equipment has become increasingly popular. For example, the Hanjiang Tool Factory visited by the attending representatives is a typical example. Their products are increasingly replacing imported products. However, during the visit, it was learned that some of the core components of the enterprise still rely on imported steel. With the breakthrough of basic materials in our steel producing country and the reduction of enterprise costs, the competitiveness of the international market will be greatly improved. At present, Qinchuan has formed three major sectors: key components, machine tools (four major industrial chains), and modern manufacturing services. In response to the new situation in the industry, the company has formed a "three aviation/two machine" processing equipment industrial chain. Driven by the new energy vehicle and electric sedan industries, the sales of the company's high-efficiency gear grinding machine have increased significantly. In terms of intelligent manufacturing, Qinchuan focuses on gear processing production lines, digital workshops for gear box assembly, and digital factory services. It has initially established three major systems of intelligent products, intelligent equipment, and intelligent manufacturing, and has participated in a total of 45 national intelligent projects, 04 special projects, etc.