Silver chain manufacture

B - Operations – Transporting – 21 – L

Patent

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Details

B21L 3/00 (2006.01) A44C 11/00 (2006.01) A44C 27/00 (2006.01) B21L 11/00 (2006.01) C22C 5/08 (2006.01)

Patent

CA 2547272

A method for silver chain manufacture comprises forming lengths of silver wire into successive chain links whose ends abut using an automatic chain forming machine, and closing the links by brazing or welding abutting ends thereof, by means of a laser. The wire comprises at least 92.5 wt% Ag and about 0.5~about 3 wt % Ge and speeds of 100-250 links per minute can be achieved. The in~vention also relates to a silver chain.

L'invention concerne un procédé de fabrication d'une chaîne en argent consistant à former des longueurs de fil d'argent en maillons de chaîne successifs, dont des extrémités se joignent par le bout au moyen d'une machine de formation de chaîne automatique, et à fermer les maillons par brasage ou soudure des extrémités qui se joignent, de préférence, à l'aide d'un laser. Ledit fil renferme au moins 92,5 % en poids d'Ag et entre environ 0,5 et 3 % en poids de Ge et des vitesses de 100 à 250 maillons par minute peuvent être atteintes. Ladite invention a aussi trait à une chaîne en argent.

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