| 摘要 |
Disclosed is a method of joining, by brazing, two metal pieces at least one of which is a powdered metal piece, each piece having a joint surface. The method includes the step of plating the joint surface of the powdered metal piece with a thin layer of metal having a relatively high melting point, assembling the pieces with their joint surfaces in substantial abutment, and applying a metal brazing composition having a flow temperature at least about 300 DEG -400 DEG F. or more less than melting point of the plating metal to the joint surfaces while heating the joint with a torch. The method eliminates the need for rigorous temperature control customarily employed in powdered metal brazing.
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