2025

Ronglian Innovation, Smart New Journey - The 5th National Rubber Skeleton Material Application Symposium was held in Zhangjiagang

The 5th National Rubber Carcass Material Application Seminar, hosted by the Carcass Material Professional Committee of the China Rubber Industry Association, was held in Zhangjiagang, Jiangsu Province.

This conference was themed "Integrating Innovation, Embarking on a New Journey." More than 150 representatives from the upstream and downstream of the industrial chain, including carcass materials, tires, rubber hoses and belts, and research institutions, attended the meeting.

At the beginning of the meeting, Xu Wenying, President of the China Rubber Industry Association, delivered a speech. She expressed her gratitude to the attendees and experts, and also thanked Jiangsu Junma Group for its strong support of the event, giving everyone the opportunity to gather in Zhangjiagang.

Xu Wenying analyzed the impact of the Sino-US trade war on the Chinese rubber industry and the latest developments in the EU's anti-dumping and countervailing duties on Chinese tires, which are issues of great concern to the industry. She offered three suggestions on how companies can cope with the current complex situation.

First, companies should maintain strategic determination and avoid acting blindly. In the face of difficulties, they should not be hasty or reckless. For example, overseas factory construction is not something that can be accomplished overnight and requires careful consideration. Second, companies should reject low-price competition and enhance their core competitiveness. Low-price competition is unsustainable. Companies should tap into their own core competitiveness and clarify their future development direction. Third, companies should pay attention to the trends of the intelligent era and focus on core competitive elements. Intelligent AI applications in tire production and inspection have significantly improved efficiency. For example, intelligent AI detection models can significantly reduce detection costs, and detection efficiency continues to improve with learning. The combination of intelligent tires and autonomous driving expands functions from simple tire pressure and route measurement to calculating the friction between tires and the ground, providing drivers with driving references. Companies should keep pace with the intelligent era and regard digital capital, talent, core products, and corporate culture as comprehensive competitive elements.

She suggested that entrepreneurs learn from Zhangjiagang's "unity, struggle, perseverance, self-imposed pressure, and a willingness to take the lead" city culture, hoping that everyone will be inspired by the "Zhangjiagang spirit" to uphold their strategic positioning in the wave of the intelligent era, and to navigate cycles through digitalization, talent, and product innovation, jointly exploring a sustainable development path for the rubber carcass material industry.

Liu Jun, Deputy General Manager of Junma Chemical Fiber Co., Ltd., as the representative of the host, extended a warm welcome and sincere respect to the attendees. He stated that Zhangjiagang, as a leading area for manufacturing transformation, its open and pragmatic character is highly consistent with the innovative and enterprising spirit of the rubber carcass material industry.

Liu Jun introduced Junma Group's development practice in Zhangjiagang for over 30 years. In terms of technological research and development, the company's research and development of high-strength, high-modulus polyester fabrics and other carcass materials have achieved industrial application. In terms of intelligent manufacturing, the newly expanded polyester fabric project of the chemical fiber company has achieved a transformation from automated to intelligent equipment; the steel cord company has built a full-process digital production line. In terms of ecological synergy, the company has collaborated with upstream and downstream enterprises, shifting from single supply and demand cooperation to in-depth linkage of joint technological research and standard construction. He hopes that through communication, a consensus can be reached to jointly promote the high-quality development of the industry.

During the conference, a meeting of the expert group of the Carcass Material Professional Committee of the China Rubber Industry Association was held to discuss the draft of the 15th Five-Year Plan for the carcass material industry, and the fourth expert group handover ceremony was held, with the awarding of appointment certificates.

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During the conference report session, 16 industry experts gave speeches on topics such as rubber carcass material development, standard construction, green manufacturing, and intelligent applications.

Chen Liang, Deputy General Manager of Zhangjiagang Junma Steel Cord Co., Ltd., gave a report entitled "Junma Group's Sustainable Development Strategy Promotes the Green Transformation of the Tire Industry." He introduced how Jiangsu Junma Group, mainly engaged in the production and operation of tire carcass materials, with products covering both domestic and international markets, has promoted the green transformation of the tire industry through green energy, environmentally friendly processes, and sustainable material research and development, and has achieved remarkable results in carbon reduction and corporate social responsibility.

Wang Chuangzao, a development engineer at Jiangsu Xingda Steel Cord Co., Ltd., shared the company's development achievements in ultra-high-strength steel cords for engineering machinery radial tires. The new structure steel cords have significantly improved strength, combining cost reduction, weight reduction, and performance advantages. He also introduced the research and development direction for high-load requirements.

Shen Yuanmei, Standard and Sustainable Development Manager of Bekaert (China) Technology Research and Development Co., Ltd., reviewed the development history of standards for tire carcass metal reinforcement materials, pointing out that China has a leading role in ISO standards, emphasizing the future focus on sustainable and intelligent manufacturing standards, promoting industry standardization and international alignment.

Li Shiqun, Minister of Production Technology at Shenma Group Cord Fabric Company, shared the development and application of nylon 66 cord fabric for air springs, providing a reference for air spring material selection.

Zhang Fuzhong, chief engineer of Sailun Group Co., Ltd., introduced the value of new steel cord materials for green and low-carbon tires, pointing out that high-performance trends, diversified application expansion, and green environmental protection are the technical development directions for new carcass materials.

Yang Hetao, assistant director of Zhongce Rubber Group Co., Ltd., introduced the development and application of 3×0.225UT OC steel cord in semi-steel radial tires.

Liu Enran, director of material research and development at Triangle Tire Co., Ltd., analyzed the application of sustainable carcass materials in tires, emphasizing their important role in promoting the green development of the tire industry and reducing environmental impact.

Hua Runjia, technical director of Jiangsu Taiji Industrial New Materials Co., Ltd., introduced the performance comparison of domestic and foreign non-activated aramid fibers for dipped fabrics, suggesting that appropriate aramid raw materials and processes should be comprehensively considered in production to maximize cost effectiveness.

Gao Jun, technical director of Zhejiang Hailide New Materials Co., Ltd., introduced the application of differentiated polyester cord fabrics in high-performance tires, pointing out the performance advantages of high-performance polyester cord fabrics.

Song Ruigui, R&D manager of Shujia Technology Manufacturing Co., Ltd., introduced 7×3×0.33+0.15ST high-permeation OTR steel cord with better permeation performance, which can extend tire life, improve safety, and reduce production costs.

Cao Dayong, chief engineer of Shandong Tianshuo Rubber Co., Ltd., introduced the influence of the composition and preparation process of RFL on the performance of cord fabric and dipping process, suggesting that the formula and process parameters should be optimized to improve product quality and efficiency.

Liu Xiaofang, deputy general manager of Jiangsu Yunda Tire Co., Ltd., gave a report entitled "Analysis of the Fatigue Characteristics and Life Prediction Research Methods of Tire Carcass Materials from a Microscopic Structure Perspective".

Ni Caihong, R&D engineer of Zhejiang Youfu Technology Industrial Co., Ltd., shared a comparative evaluation of the creep -fatigue performance of nylon and polyester dipped cord for membrane air springs.

Jia Junjun, product development engineer of Zhongtian Steel Group (Huai'an) New Materials Co., Ltd., introduced the development and application of 7x7x0.21+0.15 ST steel cord products.

Lu Jing, deputy general manager of Nanjing Oumi Mike Robot Technology Co., Ltd., introduced the application cases of the steel cord industry-related AGV logistics system developed by the company.

Li Xuedong, chief scientist of Starlet (Shanghai) New Materials Research Co., Ltd., shared the progress of spectroscopic research on the surface treatment of aramid fibers.

The conference was hosted by Pei Yufei, deputy secretary-general and director of the Information and Exhibition Department of the China Rubber Industry Association, and Li Xuedong, chief scientist of Starlet (Shanghai) New Materials Research Co., Ltd.