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US 10,556,285 B2Granted
Metal joined body and manufacturing method for metal joined body
AssigneeKobe Steel, Ltd.
InventorsTsuyoshi Matsumoto, Yoshihaya Imamura
Life of this patent
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Abstract
A metal joined body in which a joint is formed from a first metal member and a second metal member. Brazed joint portions provided intermittently with a brazing material and solder joints filling the spaces between the brazed joint portions with a solder having a fusion point lower than the brazing material, are formed at a seam of the joint. The resulting metal joint has excellent sealing properties and little thermal strain.
Claims14
A metal joined body comprising:
- a joint formed by a first metal member and a second metal member,
- wherein brazed joint portions, which are formed of a brazing material and disposed intermittently to form gaps between the brazed joint portions, and soldered joint portions, which are formed of a solder having a lower melting point than the brazing material and fill the naps between the brazed joint portions, are formed at a seam of the joint.
A method for manufacturing a metal joined body, comprising:
- forming a joint by a first metal member and a second metal member;
- intermittently forming brazed joint portions at a seam of the joint by braze joining with a brazing material such that gaps are formed between the brazed joint portions;
- and
- forming soldered joint portions between the brazed joint portions by using a solder having a lower melting point than the brazing material so that the soldered joint portions fill in the gaps between the brazed joint portions.
1 more element
Dependencies are inferred from the claim text.