| 摘要 |
[Problem] To provide a metal sealing component capable of absorbing errors in contraction and expansion due to differences in thermal effects, a metal sealing structure, and a method for manufacturing the metal sealing component. [Solution] A vacuum insulating container 1 has a dual structure comprising a metallic inner container 3 for containing a liquefied gas 2 and a metallic outer container 4 enveloping the inner container 3, and an opening section 7 is sealed by connecting an inner wall section 5 and an outer wall section 6 having different diameters through a metal sealing component 10. The metal sealing component 10 has metallic tapered cylindrical sections 12 having different diameters, is provided with a welded bellows 11 having a plurality of ridges in the radial direction, and expands or contracts in the radial direction and the axial direction to absorb expansion caused by thermal effects. |
