公开(公告)号：JP2003145290A

公开(公告)日：2003-05-20

申请号：JP2001344290

申请日：2001-11-09

Applicant: SUMITOMO SPEC METALS ,  DENSO CORP

Inventor： HASEGAWA TAKESHI ,  ISHIO MASAAKI ,  KAJIKAWA SHUNJI ,  SAKAMOTO ZENJI ,  MAEDA AKIHIRO

IPC: F28F21/08 ,  B23K1/20 ,  B23K35/14 ,  B23K101/14 ,  C22C9/00 ,  C22C9/01 ,  C22C9/05 ,  C22C19/05

Abstract: PROBLEM TO BE SOLVED: To provide a material for brazing in which the corrosion resistance and the oxidization resistance of a brazing filler metal part with which joined members are brazed are improved and to provide a brazing structure which is suitable for the flow passage structure of a heat exchanger. SOLUTION: The structure is provided with a base plate 11 which is formed by a stainless steel member 11, a Fe-atom-diffusion-suppressing layer 12 which is formed by a Ni-Cr alloy which consists essentially of Ni and includes 10 to 30 mass % Cr, and further provided with, when necessary, a brazing filler metal layer 13 which is formed by a Cu-based brazing filler metal formed as a lamination on the Fe-atom-diffusion-suppressing layer 12. The diffusion of Fe atoms in the base plate into the brazing filler metal which is melted during a brazing process is suppressed by the Fe-atom-diffusion-suppressing layer, and a proper amounts of Ni and Cr are diffused into the brazing filler metal part, thus the excellent corrosion resistance and the oxidization resistance are given to the brazing filler metal part.

公开(公告)号：JP2001001133A

公开(公告)日：2001-01-09

申请号：JP16989599

申请日：1999-06-16

Applicant: DENSO CORP

Inventor： UCHIMURA KATSUNORI ,  KAJIKAWA SHUNJI ,  OKAZAKI KEIICHI ,  SAKAMOTO ZENJI ,  YAMANAKA YASUTOSHI ,  SUZUKI YASUHIRO

IPC: B23K1/00 ,  B23K1/19 ,  B23K1/20 ,  F02M25/07

Abstract: PROBLEM TO BE SOLVED: To provide a brazing method excellent in the corrosion resistance. SOLUTION: After forming a metallic layer (diffusion preventing layer) 150 of a nickel by cladding the nickel on each surface mutually faced in a first and a second plates 111, 112, a copper is heated to not lower than the m.p. of the copper as a brazing filler metal to join the first and the second plates 111, 112 with brazing. In this way, since the copper in the copper layer 160 becomes the nickel alloy and both plates are brazed while preventing the diffusion of iron in a stainless steel into the copper layer 160 side as the brazing filler metal, both plates 111, 112 can surely be joined with brazing while displaying the excellent corrosion resistance.

公开(公告)号：JP2000295821A

公开(公告)日：2000-10-20

申请号：JP9642899

申请日：1999-04-02

Applicant: DENSO CORP

Inventor： SAKAMOTO ZENJI ,  NAKA YOSHIO

IPC: H01F5/04 ,  H02K15/04

Abstract: PROBLEM TO BE SOLVED: To materialize jointing with welding joint material in high density without incurring the drop of reliability on joining. SOLUTION: The conductors 1 constituting the disposition of pair lead wires are arranged in parallel in the same way in the direction of extension with the tips 2 lined up in a row, and they are soldered with each other two by two of the paired tips adjoining each other out of each tip 2. The tips 29 of both conductor lines 1 constituting the same twin lead wires 4 are arranged with their sides 22 close to each other, and also a specified gap (a gap between pairs) is secured between adjacent two lead wires 1 and 1 belonging to different pair lead wires 4. The headmost sections 23 of both tips 2 of the pair lead wires 1 which constitute the same pair lead wires 4 adjoining each other have such form (hereinafter, called as tapered) that they go away from the next pair lead wires 4 more than their base end sections, and there is such a metric that they are hard to be misconnected.

公开(公告)号：JP2000106266A

公开(公告)日：2000-04-11

申请号：JP20158899

申请日：1999-07-15

Applicant: DENSO CORP

Inventor： KOBAYASHI MASAYUKI ,  SHIRAI MAKOTO ,  SAKAMOTO ZENJI

IPC: H05B3/18 ,  H05B3/02

Abstract: PROBLEM TO BE SOLVED: To provide a ceramic heater in the form of a laminated rectangular plate, which is superior in durability of a part for jointing a lead wire to its planar side face. SOLUTION: This ceramic heater comprises a ceramic-made main body part 10, a heating part and lead parts 12 formed within the main body part 10, and metallic terminal parts 2 provided on the planar side faces 15 of the main body part 10 and electrically connected to the lead parts 12, with lead wires 8 jointed to the metallic terminal parts 2 by junction layers 3. The junction layers 3 have a Brinell hardness of 80 or less. Preferably, the junction layers 3 contain 40 wt.% or more Cu and 60 wt.% or less Au.

公开(公告)号：JPH11292649A

公开(公告)日：1999-10-26

申请号：JP818699

申请日：1999-01-14

Applicant: DENSO CORP

Inventor： KOBAYASHI MASAYUKI ,  SHIRAI MAKOTO ,  SAKAMOTO ZENJI

IPC: B23K1/19 ,  B23K35/30 ,  C04B37/02 ,  C22C9/06 ,  H05B3/02 ,  H05B3/10

Abstract: PROBLEM TO BE SOLVED: To obtain a ceramic-metal conjugate having high joining strength between a metal layer and a joining member at an inexpensive production cost and provide a method for producing the conjugate. SOLUTION: This ceramic-metal conjugate comprises a ceramic body 10, a metal layer 11 provided on the surface 100, a joining layer 12 provided on the metal layer 11 and a joining member 14 joined to the metal layer 11 by the joining layer 12, and the joining layer 12 contains 40-98 wt.% Cu and 2-20 wt.% Ni. This method for producing the ceramic-metal conjugate comprises providing a metal layer 11 on the surface 100 of a ceramic body 10 and joining a joining body 14 containing Ni to the metal layer 11 by using a joining layer 12 containing 40-100 wt.% Cu.