公开(公告)号：US11174033B2

公开(公告)日：2021-11-16

申请号：US15781010

申请日：2016-12-02

Applicant: Hutchinson

Inventor： Fabrice Chopard ,  Yann Favier ,  Cédric Huillet ,  Hmad Bourass ,  Yannick Thenault ,  Christophe Dominiak

IPC: B64D29/06 ,  B32B7/05 ,  B32B7/08 ,  B32B15/18 ,  B32B15/20 ,  B64C1/40 ,  F16L59/065

Abstract: The invention concerns an insulating part comprising a sealed casing defining an inner enclosure (7), the part having thermal conductivity of less than 100 mW/m.K, the sealed casing (3) comprising at least one thin metal sheet (30, 31) having a thickness of less than 1 mm and welded peripherally to keep the enclosure under low pressure and/or controlled atmosphere, the weld, which is produced in a chamber under low pressure and/or controlled atmosphere, having a leakage rate of less than 10−6 Pa·m3/s, after a first thermal treatment according to the standard RTCA-DO 160-G, section 5, Cat A (from −55° C. to 400° C.) and a second thermal treatment at −196° C. for 1 hour.

公开(公告)号：US20200283161A1

公开(公告)日：2020-09-10

申请号：US15781010

申请日：2016-12-02

Applicant: Hutchinson

Inventor： Fabrice Chopard ,  Yann Favier ,  Cedric Huillet ,  Hmad Bourass ,  Yannick Thenault ,  Christophe Dominiak

IPC: B64D29/06 ,  B32B15/18 ,  B32B15/20 ,  B32B7/05 ,  B32B7/08 ,  B64C1/40

Abstract: The invention concerns an insulating part comprising a sealed casing defining an inner enclosure (7), the part having thermal conductivity of less than 100 mW/m.K, the sealed casing (3) comprising at least one thin metal sheet (30, 31) having a thickness of less than 1 mm and welded peripherally to keep the enclosure under low pressure and/or controlled atmosphere, the weld, which is produced in a chamber under low pressure and/or controlled atmosphere, having a leakage rate of less than 10−6 Pa·m3/s, after a first thermal treatment according to the standard RTCA-DO 160-G, section 5, Cat A (from −55° C. to 400° C.) and a second thermal treatment at −196° C. for 1 hour.