Brazing clad material, and brazing method and brazing product using the same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B23K-001/19
B23K-001/00
B32B-015/01
B32B-015/18
출원번호
US-0315599
(2005-12-23)
등록번호
US-7442445
(2008-10-28)
우선권정보
JP-2004-373547(2004-12-24)
발명자
/ 주소
Sagawa,Hideyuki
Kuroda,Hiromitsu
Kuroki,Kazuma
Horii,Humio
Tokumitu,Tetsuya
Sakuyama,Nobuhito
Okamoto,Shigeru
출원인 / 주소
Hitachi Cable, Ltd.
대리인 / 주소
Foley & Lardner LLP
인용정보
피인용 횟수 :
1인용 특허 :
0
초록▼
A brazing clad material is a composite material that comprises a base material and a brazing material layer formed integrally on the base material. The brazing material layer has a Ni or Ni alloy layer, a Ti or Ti alloy layer and a Fe--Ni alloy layer that are sequentially stacked in this order on th
A brazing clad material is a composite material that comprises a base material and a brazing material layer formed integrally on the base material. The brazing material layer has a Ni or Ni alloy layer, a Ti or Ti alloy layer and a Fe--Ni alloy layer that are sequentially stacked in this order on the base material. The brazing material layer has a Fe concentration of 25 to 40 wt % in the entire brazing material layer. The brazing material layer satisfies a ratio of W1/W2 to be 0.56 to 0.66, where W1 is a weight of Ni contained in the entire brazing material layer and W2 is a total weight of Ni and Ti contained in the entire brazing material layer.
대표청구항▼
What is claimed is: 1. A brazing clad material, comprising: a composite material that comprises a base material and a brazing material layer formed integrally on the base material, wherein the brazing material layer comprises a Ni or Ni alloy layer, a Ti or Ti alloy layer and a Fe--Ni alloy layer t
What is claimed is: 1. A brazing clad material, comprising: a composite material that comprises a base material and a brazing material layer formed integrally on the base material, wherein the brazing material layer comprises a Ni or Ni alloy layer, a Ti or Ti alloy layer and a Fe--Ni alloy layer that are sequentially stacked in this order on the base material, wherein the brazing material layer comprises a Fe concentration of 25 to 40 wt % in the entire brazing material layer, wherein the brazing material layer satisfies a ratio of W1/W2 to be 0.56 to 0.66, where W1 is a weight of Ni contained in the entire brazing material layer and W2 is a total weight of Ni and Ti contained in the entire brazing material layer, wherein the brazing material layer comprises a diffusion reacting layer with a thickness of 2 to 6 μm, and wherein the diffusion reacting layer is formed at an interface between two hetero-metals of the Ni or Ni alloy layer, the Ti or Ti alloy layer and the Fe--Ni alloy layer to compose the brazing material layer. 2. The brazing clad material according to claim 1, wherein: the composite material satisfies a ratio of T2/T1 to be 0.05 to 0.12, where T2 is a thickness of the brazing material layer and T1 is a total thickness of the brazing clad material, as determined before cladding. 3. The brazing clad material according to claim 1, wherein: the Fe--Ni alloy layer comprises Fe-35 to 45 mass % Ni. 4. The brazing clad material according to claim 1, wherein: the base material comprises an alloy comprising Fe as a main component. 5. The brazing clad material according to claim 4, wherein: the alloy comprising Fe as a main component comprises a stainless steel. 6. A method of brazing the brazing clad material as defined in claim 1 to a brazed member, comprising the steps of: preheating the brazing clad material at a temperature of 800 to 940�� C. and brazing the preheated brazing clad material to the brazed member in a vacuum atmosphere at a temperature of 1100 to 1200�� C. 7. The method according to claim 6, wherein: the vacuum atmosphere comprises a vacuum degree of 1��10-2 Pa or less. 8. The method according to claim 6, wherein: the vacuum atmosphere comprises a gas atmosphere substantially not containing N2 gas and a vacuum degree of 1��10-2 Pa or less. 9. A brazing product, comprising: the brazing clad material as defined in claim 1; and a brazed member, wherein the brazing clad material is brazed to the brazed member. 10. A brazing product, comprising: a brazing clad material, comprising: a composite material that comprises a base material and a brazing material layer formed integrally on the base material, wherein the brazing material layer comprises a Ni or Ni alloy layer, a Ti or Ti alloy layer and a Fe--Ni alloy layer that are sequentially stacked in this order on the base material, wherein the brazing material layer comprises a Fe concentration of 25 to 40 wt % in the entire brazing material layer, wherein the brazing material layer satisfies a ratio of W1/W2 to be 0.56 to 0.66, where W1 is a weight of Ni contained in the entire brazing material layer and W2 is a total weight of Ni and Ti contained in the entire brazing material layer, wherein the brazing material layer comprises a diffusion reacting layer with a thickness of 2 to 6 μm, wherein the diffusion reacting layer is formed at an interface between two hetero-metals of the Ni or Ni alloy layer, the Ti or Ti alloy layer and the Fe--Ni alloy layer to compose the brazing material layer, and wherein the brazing clad material is brazed to the brazed member by a method comprising the steps of: preheating the brazing clad material at a temperature of 800 to 940�� C. and brazing the preheated brazing clad material to the brazed member in a vacuum atmosphere at a temperature of 1100 to 1200�� C.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허를 인용한 특허 (1)
Caspar, Hans-Peter; Kotthoff, Hubertus; Gutowski, Jörg; Chauchet, Dietmar; Wieres, Ludwig, Method for brazing a metallic honeycomb body for exhaust gas treatment and apparatus for carrying out the method.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.