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    • 7. 发明授权
    • Vacuum insulation vessels and methods of making same
    • 真空绝热容器及其制造方法
    • US5791551A
    • 1998-08-11
    • US685722
    • 1996-07-24
    • Jerry M. ParksHerbert L. Hall, Jr.Stanley J. Rusek, Jr.
    • Jerry M. ParksHerbert L. Hall, Jr.Stanley J. Rusek, Jr.
    • B23K1/00B23K35/02B65D81/38F16L59/06B23K31/02B23K35/28
    • B65D81/38B23K1/0008B23K35/0244B23K2201/12
    • The present invention involves the use of a braze preform (28) for sealing and maintaining a vacuum in an insulation vessel (10). The braze preform (28) comprises particles of a braze material that are at least partially sintered together and at least substantially free of a binder. An assembly is provided for use in a method of manufacturing a vacuum insulation vessel (10). The assembly comprises a metal jacket (12) defining an interior space (20) to be evacuated and one or more evacuation ports (24) formed through a wall of the jacket (12). The evacuation ports (24) provide an opening to the interior space (20). The sintered braze preform (28) is located adjacent to the evacuation ports (24) so as to seal the evacuation ports (24) upon the melting of the brazing material. After the interior space (20) of the jacket (12) is evacuated, the preform (28) can be melted and allowed to solidify and seal the evacuation ports (24). In this way a vacuum can be maintained in the interior space (20).
    • 本发明涉及使用钎焊预成型件(28)来密封和保持绝缘容器(10)中的真空。 钎焊预制件(28)包括至少部分地烧结在一起并至少基本上不含粘合剂的钎焊材料颗粒。 提供一种用于制造真空绝热容器(10)的方法的组件。 组件包括限定要抽真空的内部空间(20)的金属护套(12)和通过护套(12)的壁形成的一个或多个抽空口(24)。 排气口(24)为内部空间(20)提供开口。 烧结的钎焊预制件(28)位于与排气口(24)相邻的位置,以便在钎焊材料熔化时密封排气口(24)。 在套管(12)的内部空间(20)被抽真空之后,预成型件(28)可被熔化并使其凝固并密封排气口(24)。 以这种方式,可以在内部空间(20)中保持真空。