聚变产业链又一突破：太钢全工业化制程基带批量交付

Core Insights - The article highlights the successful industrial-scale delivery of the C276 superconducting substrate, a critical raw material for the nuclear fusion industry, developed by Taiyuan Iron and Steel Group (TISCO) [3][12]. Group 1: Product Development - TISCO has developed a fully industrialized process for producing wide ultra-thin nickel-based alloy C276 substrates, which have been validated in bulk production at Shanghai Superconductor [4][13]. - The recent batch produced nearly 50 kilometers of REBCO high-temperature superconducting tape, with 40 strips of 12mm width sourced from a single roll of 500mm wide and 50-micron thick nickel-based alloy substrate [4][13]. - The average critical current at 77K for the produced tape reached 705A/12mm, indicating significant advancements in the production capabilities of high-temperature superconducting materials in China [4][13]. Group 2: Technological Advancements - TISCO's nickel-based alloy team has achieved breakthroughs in the entire production process, from raw material smelting to rolling, enhancing the domestic production capacity of high-temperature superconducting tape [5][14]. - The team has developed a complete set of technologies for high-purity smelting, narrow temperature range hot rolling, and cold rolling with high surface quality, achieving a comprehensive inclusion rating of less than 0.5 and purity levels that meet international standards [6][14]. - The surface roughness of the substrate is only 3nm, achieving atomic-level flatness, which is essential for the preparation of the superconducting layer [6][15]. Group 3: Strategic Importance - Fusion energy is identified as a national strategic emerging industry in China's 14th Five-Year Plan, crucial for securing energy safety and achieving carbon neutrality goals [5][14]. - The supply capability of the basic raw materials for REBCO high-temperature superconducting tape is essential for ensuring large-scale, consistent, and rapid production [5][14]. - TISCO's stable mass production of the C276 superconducting substrate not only demonstrates its technical strength but also enhances China's influence in the high-temperature superconducting industry [6][15].