【発明の名称】ステンレス鋼用ろう合金、そのろう合金によってろう接されたろう接構造物およびステンレス鋼用ろう材

Japanese Patent JP3383288

B2

A brazing alloy according to the present invention has a melting point equivalent to that of a copper brazing filler and is excellent in corrosion- and oxidation-resistance. The brazing alloy consists essentially of Mn, Ni and Cu, and has a composition in terms of weight percentage which, when plotted on a diagram as shown in Fig. 1, falls within a range defined by: the point A (37% Mn, 63% Ni, 0% Cu); the point B (18% Mn, 27% Ni, 55% Cu); the point C (42% Mn, 3% Ni, 55% Cu); the point D (50% Mn, 3% Ni, 47% Cu); and the point E (50% Mn, 50% Ni, 0% Cu), wherein Mn=50% is exclusive. A brazing material according to the present invention comprises: a Mn-based metal layer which is composed of a Mn-Ni alloy or a Mn-Ni-Cu alloy; and a Ni-based metal layer which is composed of Ni, a Ni alloy, or a Ni-Cu alloy, wherein the Mn-based metal layer and the Ni-based metal layer are bonded to each other in a stacked relation, and an average content of each of the essential elements in any cross section perpendicular to the length of the brazing material falls within the composition range of the aforesaid brazing alloy.

Masami Ueda
Masaaki Ishio
Hidetoshi Noda
Go Hasegawa

JP2000572047A

March 04, 2003

September 20, 1999

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Sumitomo Special Metal Co., Ltd.

B23K35/30; B23K35/02; (IPC1-7): B23K35/30; C22C30/02

JP8206876A
JP6210488A
JP61209966A
JP1029075A
JP9285888A
JP11179588A
JP11254180A
JP4222872B1

【文献】米国特許4704338(US,A)
【文献】ソ連国特許発明659326(SU,A)

本田 ▲龍▼雄

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