Brazing sheet and flux composition
US10213881B2 · kind B2 · utility
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5Claims
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Key dates
| Filing date | Apr 16, 2014 |
| Grant date | Feb 26, 2019 |
| Priority date | — |
| Expiry date | Oct 5, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F21/089
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A brazing sheet includes a core material containing an aluminum alloy including magnesium, a bonding material laminated on at least one side of the core material, and a flux layer. The flux layer is laminated on one side of the bonding material and includes a flux composition. The flux composition includes [A] a flux component containing KAlF4, and [B] AlF3. A substance mass S1 (mol) of magnesium in the bonding material when heated at 585° C., a substance mass S2 (mol) of [A] the flux component containing KAlF4 in the flux layer and a substance mass S3 (mol) of [B] AlF3 satisfy the specific expression.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.