The fabrication and preassembly of HT-7 Superconducting Tokamak

Abstract

The HT-7 Superconducting Tokamak is being built in Hefei, China. It is a device reconstructed and upgraded from T-7 Tokamak of Russia. This project is a co-operating item of fusion research between Russia and China. The Research and Manufacturing Center (RMC), ASIPP is responsible for the fabrication and assembly of HT-7. The design of HT-7 was carried out by both of Russian and Chinese engineers in 1991, and the main parts of the machine were fabricated in 1992. The preassembly of HT-7 was completed in April, 1993. This paper emphasizes on the manufacturing steps necessary to produce the HT-7 and a series of technological methods to overcome the key techniques.