Company Filing History:
Years Active: 2025
Title: Haijun Ma: Innovator in Steel Cord Technology
Introduction
Haijun Ma is a notable inventor based in Jiangyin, China. He has made significant contributions to the field of steel cord technology, particularly in applications for rubber reinforcement. With a total of 2 patents, his work has garnered attention for its innovative approaches to enhancing material performance.
Latest Patents
Haijun Ma's latest patents focus on the development of advanced steel cords for rubber reinforcement. The first patent describes a steel cord with a construction of n×1, where n represents the number of steel filaments. This steel cord exhibits an elongation at 2.5N-50N of less than 1.2% and a twist pitch greater than 16 mm. Each steel filament is designed with a helical wave form, characterized by a wavelength L greater than 16 mm and a space volume Vs that satisfies Vs=L×H×π/4, with Vs exceeding 20 mm. This innovative design improves stress distribution within the cord. The second patent also pertains to steel cords, detailing a construction that includes two or more steel filaments. At least one filament features a twist pitch ranging from 6 mm to 40 mm, with a tip rise of less than 5 mm after being unraveled. This design enhances straightness and reduces the risk of steel filament fractures.
Career Highlights
Haijun Ma is currently employed at Nv Bekaert SA, a company recognized for its expertise in steel wire and cord manufacturing. His work at the company has been instrumental in advancing the technology used in rubber reinforcement applications.
Collaborations
Throughout his career, Haijun Ma has collaborated with notable colleagues, including Aijun Zhang and Yaodong Li. These partnerships have contributed to the development of innovative solutions in the field of steel cord technology.
Conclusion
Haijun Ma's contributions to steel cord technology exemplify the impact of innovation in material science. His patents reflect a commitment to enhancing the performance and reliability of steel cords used in various applications.