B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
B23K 35/22 (2006.01) B23K 35/02 (2006.01) B23K 35/36 (2006.01) C23C 24/10 (2006.01) B23K 35/28 (2006.01)
Patent
CA 2165338
A method of brazing is provided herein. The method includes the first step of applying a layer of particles of an aluminum alloy filler material. The particles have a coating of a first inorganic flux--type material, e.g., a compound of potassium fluoride and aluminum fluoride together with, or also with, other inorganic flux-type materials, (which has been produced by a particularly-recited and specified method) to at least one of the articles, such that the particles are retained at, or adjacent to, at least a part of the joint between the articles. The next step involves heating to cause the flux- type material and the aluminum alloy filler material to melt and form a brazed joint. The flux coating on the particles of aluminum alloy filler is formed during the atomization procedure. The final step includes cooling the substrate to solidify the aluminum coating material.
L'invention concerne un procédé de brasage comprenant les étapes d'application d'une couche de particules à un matériau de charge en alliage d'aluminium, lesdites particules possédant un revêtement d'un matériau de type flux sélectionné à partir du groupe comprenant un composé de fluorure de potassium avec du fluorure d'aluminium ou un autre matériau inorganique de type flux à au moins un desdits articles, de façon à retenir lesdites particules au niveau d'au moins une partie du joint entre lesdits articles ou en position contiguë à ladite partie; de rechauffement, de manière à provoquer la fusion du matériau de type flux et dudit matériau de charge en alliage d'aluminium afin de constituer un joint brasé.
Borden Ladner Gervais Llp
Lexor Technologies Limited
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