公开(公告)号：US20170030509A1

公开(公告)日：2017-02-02

申请号：US15099732

申请日：2016-04-15

Applicant: COOPER-STANDARD AUTOMOTIVE, INC.

Inventor： Jose Reyes Flores RAMIREZ ,  Krishnamachari GOPALAN ,  Lyle OTREMBA

IPC: F16L58/08 ,  B23K1/19 ,  C23C2/00

CPC classification number: F16L58/08 ,  B23K1/0004 ,  B23K1/19 ,  B23K1/20 ,  B23K2101/06 ,  B23K2103/20 ,  C23C2/00 ,  C23C2/12 ,  C23C2/26 ,  C23C2/38

Abstract: A double wall steel tube includes an inner tube wall and an outer tube wall. The inner and outer tube walls are formed from a tubing material including an inner layer of iron steel, first and second outer layers of an alloy of aluminum and silicon, a first intermediate layer disposed between the inner layer and the first outer layer, and a second intermediate layer disposed between the inner layer and the second outer layer. The first and second intermediate layers include aluminum, silicon and iron. The inner and outer tube walls are brazed together.

Abstract translation: 双壁钢管包括内管壁和外管壁。 内管壁和外管壁由包括铁内层的管材形成，铝和硅合金的第一和第二外层，设置在内层和第一外层之间的第一中间层，以及 第二中间层设置在内层和第二外层之间。 第一和第二中间层包括铝，硅和铁。 内壁和外管壁钎焊在一起。