Nanjing Baotai successfully developed a large-scale titanium steel composite plate with a single area of ​​more than 50m²

A large domestic equipment manufacturer uses a large titanium steel composite plate with a single area of more than 50 square meters. Due to the particularity of the explosive welding process, there are many external factors affecting large-scale production. After the width of a single plate exceeds a certain limit size, the quality of the edge of the explosive bonding is unstable, and the defects caused by the explosive welding are difficult to remedy under the existing technical level. Ensuring the first-time qualified rate of the product is the basis for product scale and industrialization. Nanjing Baotai Special Materials Co., Ltd. adopts a technical route that combines theoretical analysis, numerical calculation and experimental demonstration. On the basis of existing research and development results, in response to the requirements of large-area titanium steel composite plates for various performance parameters, the company's technical research and development team overcame difficulties, solved technical bottlenecks, and finally succeeded in research and development. The large-area titanium steel composite plate project has been successfully industrialized. The company's research and development team optimized the selection of materials and the formulation of processes during the research and development cycle. Through multiple tests and calculations, the explosive welding window and explosive welding process parameters were determined, and the problems of analyzing the unsteady phenomenon in the explosive welding detonation zone, controlling the unsteady section, and eliminating the residual stress of explosive welding were solved. The material of the explosive welding product of this project is: SB265Gr.1/Q235B; the effective size specification is: 4/42*12700*3960, the fitting rate reaches 99.9%, and the shear strength reaches 196MPa, which fully meets the national standards and industry technical parameters for ultra-large area titanium steel composite plates. It is currently the largest titanium steel composite plate in the world and China, and its technical level is domestically leading and internationally advanced.

The successful development of the ultra-large area explosion titanium steel composite plate is of great significance. It has improved the company's competitiveness and market share, met customer needs, enhanced the company's brand value, and improved the company's innovation ability and production efficiency. In the future, Nanjing Baotai will continue to uphold the spirit of "hard work, honesty, continuous improvement, and continuous innovation" to build a first-class comprehensive metal composite material innovative enterprise, provide high-quality new composite materials for modernization construction, and work hard for the development of the metal composite material industry.