Abstract: In a heat conducting component used in a superconducting magnet refrigeration system and a manufacturing method for the same, a superconducting magnet refrigeration system and magnetic resonance imaging equipment, the heat conducting component includes an aluminum block, annular stainless steel transition part, and a first thin wall tube, wherein there is a through-hole in the aluminum block. The stainless steel transition part is friction welded at one end thereof to one end face of the aluminum block, and has an annular step at that end thereof which is remote from the aluminum block. One end of the thin wall tube is welded to the annular step of the stainless steel transition part.

Abstract: A precooling device for a thermal radiation shield of a superconducting magnet has a mechanical heat conductive member in contact with the thermal radiation shield of a superconducting magnet, for cooling the thermal radiation shield down to a second temperature before the second stage of precooling of the superconducting magnet, this second temperature being below the temperature of the thermal radiation shield after a first stage of precooling of the superconducting magnet. A superconducting magnet and magnetic resonance imaging equipment embody such a precooling device. The precooling device reduces the external radiation heat onto a cryogen vessel, thereby reducing the consumption of cryogen.