公开(公告)号：US20210121982A1

公开(公告)日：2021-04-29

申请号：US17076839

申请日：2020-10-22

Applicant: DENSO CORPORATION

Inventor： Yuuya TAKAHASHI ,  Syusuke OOTSUKI ,  Tomohiro SHIMIZU ,  Sumera SHIMIZU

IPC: B23K26/244 ,  B23K26/26

Abstract: Provided is a joining structure capable of simplifying the manufacturing process and having high corrosion resistance. A joining structure has a welded part for connecting joined members made of a metal that forms a passive film. An outermost surface portion of the welded part has a pitting potential. The welded part may include a welded part main body formed inside and a surface-modified layer formed in contact with the welded part main body, and the surface-modified layer may include the outermost surface portion having a pitting potential.

公开(公告)号：US20150083316A1

公开(公告)日：2015-03-26

申请号：US14491378

申请日：2014-09-19

Applicant: DENSO CORPORATION

Inventor： Hideaki SHIRAI ,  Tomohiro SHIMIZU ,  Yasuyuki OOKOUCHI

IPC: C04B37/02 ,  B32B37/06

CPC classification number: C04B37/021 ,  C04B37/005 ,  C04B2237/083 ,  C04B2237/36 ,  C04B2237/365 ,  C04B2237/403 ,  C04B2237/80 ,  C04B2237/84 ,  H05B3/141 ,  H05B3/42 ,  H05B2203/023

Abstract: A method of manufacturing a joint body of a ceramic body and a metal body includes a step of joining them together by passing a current to an abutment surface between them. The joining step includes a step of heating up the abutment surface to a temperature T1 within a temperature range between (Tr-220)° C. and (Tr-50)° C. in a period longer than 10 seconds, Tr being a recrystallization temperature of the metal body, a step of heating the abutment surface for a period longer than 5 seconds at a temperature T2 within a temperature range between Tm×0.3° C. and Tm×0.45° C., Tm being a melting point of the metal body, and a step of heating the abutment surface for a period longer than 3 seconds at a heating temperature higher than Tm×0.48° C. and lower than Tm×0.6° C.

Abstract translation: 制造陶瓷体和金属体的接合体的方法包括通过将电流传递到它们之间的邻接表面而将它们接合在一起的步骤。 接合步骤包括在长于10秒的时间内将邻接表面加热到在（Tr-220）℃和（Tr-50）℃之间的温度范围内的温度T1的步骤，Tr是重结晶 金属体的温度，在Tm×0.3℃〜Tm×0.45℃之间的温度范围内的温度T2下，将抵接面加热5秒以上的步骤，Tm为 金属体，以及在高于Tm×0.48℃并低于Tm×0.6℃的加热温度下将抵接表面加热3秒以上的步骤。