Method of making soldering wire constituted by a core of powder and a metallic tube enclosing the core
AssigneeAcieries Reunies de Burbach-Eich-Dudelange S.A. ARBED
InventorsJacques Blanpain, Leon Delehouzee
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Abstract
Soldering wire constituted by a core of powder and a metallic tube enclosing the core of powder is produced by substantially filling an elongated upwardly open metal channel with the powder and introducing a profiled band into the thus filled channel which overlaps the powder at the open end of the channel and which engages the inner faces of the channel to keep the powder, during closing of the channel by bending upper longitudinally extending edges thereof into abutment with each other and subsequently welding these edges to each other, away from the longitudinal edges.
Claims12
A process of manufacturing a soldering wire constituted by a core of soldering powder and a tubular metallic member enclosing the core, said process comprising the steps of forming from a metal band an open channel of substantially U-shaped profile having a pair of lateral flanks with upper end edges extending longitudinally of the channel;
- introducing into the channel a stream of soldering powder to substantially fill the channel with a loose strand of said powder;
- covering the loose strand of powder introduced into the preformed channel by a sheath which surrounds at least part of the powder and which abuts with curved borders thereof against inner faces of said flanks to hold the powder at the bottom of the channel and to keep it away from said end edges of said flanks;
- closing said channel by bringing said end edges in abutment with each other;
- and permanently connecting said end edges to each other.
Dependencies are inferred from the claim text.