Abstract
The Bi2212 cable-in-conduit conductor (CICC) is a composite soft material and is sensitive to stress-strain and brittle breakage. The cabling tensions are critical parameters for the CICCs and have undergone trial production many times to achieve effective cable control. Unreasonable tension will cause circumferential and axial motion, resulting in deflection bending, rotation fluctuations, and wire slip. This study investigated the manufacturing process of the Bi2212 CICC, optimizing the cable twisting process and reducing manufacturing consumption and damage. Additionally, optimized tensions of the Bi2212 CICCs during the cabling process, focusing on pay-off tension, rotation speeds, and traction tensions were presented. Finally, the results are tested and verified in the factory to examine the wire jumpers, serpentine bending, and pitch fluctuations. This research provides useful references for future cable fabrication of the HTS CICCs.
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