China R&D nuclear fusion experimental reactor superconducting cable conductor

On August 16th, under the supervision of the officials of the International Thermonuclear Experimental Reactor (ITER) Program Headquarters, the 765-meter CB superconducting cable conductor went offline at the company. This conductor is the maximum length superconductor cable that runs in the ITER device.

The ITER device is a superconducting Tock mark that produces a large-scale nuclear fusion reaction and aims to establish a sustainable human clean energy system, commonly known as the "artificial sun." In January 2003, the Chinese government formally participated in the negotiation of the ITER plan and became one of the cooperative members of the plan. According to the agreement, China will bear 70% of the production volume of tube-mounted cable conductors.

The superconducting cable conductor is the core part of the superconducting cable in the ITER device. According to a certain twisting parameter, the 0.73 mm diameter low-temperature superconducting material and the metal single wire are divided into five strands of conductors in five stages. “The parameters of each level of stranding should be uploaded to the ITER data system and confirmed by the project officer's analysis.” Li Yingzi, a senior engineer at Changtong, said.

The Changtong company's project team optimized the parameters of compaction, twisting, stretching, joints, and welding in the development process, and strengthened the technical quality control. This new cable conductor will be delivered to the Hefei Institute of Materials at the Chinese Academy of Sciences in the near future, and will be sent to the ITER headquarters in France after the completion of the wear.

Baiyin Nonferrous Metals is a key enterprise in China's wire and cable industry. The various types of high- and low-temperature superconducting cables developed and produced by the company have been successfully applied in aerospace, new energy, and basic physical research. The four CB and PF5 cable conductors that have been supplied to ITER this year have been assembled and operated. (Reporter Du Ying)

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