Structure of low temperature superconducting parts for current lead at tens of thousands levels

摘要

Problem to be solved: to expose a structure of a low temperature superconducting portion for current lead of tens of thousands of levels.The structure of the low temperature superconducting portion for the current lead of tens of thousands of levels including the liquid helium conduit, the oxygen free copper joint, the low temperature superconducting line (3), the high temperature superconducting stack (4), the divertor barrier rib (6) of the stainless steel, and the divertor (7) of the stainless steel.The planar junction structure was designed on the upper and lower surfaces of the oxygen free copper joint.Easy to be joined to other jointsTwo liquid helium pipes were brazed to the left endA liquid helium passage is formed inside it.Stainless steel divertor (7) is brazed to the right endA stainless steel divertor partition (6) is soldered inside the stainless steel divertorA low temperature circuit is constructed with a liquid helium passage.A high temperature superconducting stack (4) is soldered to the surface of a stainless steel divertorLow temperature superconducting wireOne end is mounted and soldered in the lower layer of the high temperature superconductor stack 4The other end is soldered to the two sides of the oxygen free copper joint.The surface of the stainless steel divertor (7) needs to be silver plated.Diagram