B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
B23K 20/227 (2006.01) B23K 20/02 (2006.01) B23K 20/16 (2006.01) B23K 35/30 (2006.01) F28F 21/08 (2006.01)
Patent
CA 2246804
In a method of bonding ferric and austenitic dual stainless steels, an insert material made of a Ni base alloy having a melting point below 1290°C is put between the bonding cross section faces of mother material steels comprising a dual phase stainless steel. A pressure force in the range of 3 MPa to 5 MPa is applied to a bonding area. The bonding area is heated at a temperature in the range of 1290°C to a melting point of the mother material steel. The temperature is kept for in the range of 30 second to 180 second.
Cette invention concerne la liaison d'aciers inoxydables ferritiques et austénitiques par insertion d'une pièce en alliage à base de Ni à point de fusion inférieur à 1290 degrés Celsius entre les faces contiguës des aciers inoxydables à double phase à lier et compression de la zone de liaison sous une force comprise entre 3 Mpa et 5 Mpa. Cette zone est chauffée à une température comprise entre 1290 degrés Celsius et le point de fusion de l'acier mère. Cette température est maintenue pendant une durée allant de 30 à 180 secondes.
Horio Hirotsugu
Inagaki Shigeyuki
Shimizu Takao
Suzuki Hiroaki
Tsuchiya Masaki
Daido Tokushuko Kabushiki Kaisha
Riches Mckenzie & Herbert Llp
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