| 摘要 |
Brazable aluminium alloys, particularly those intended for the manufacturing of heavy machinery. The alloy according to the invention contains in% by weight: Fe: 0.10 to 0.7; Ni: 0.40 to 1.0; Mn: 1.00 to 1.5; Cr0.5; Si: 0.20 to 0.5; Zr0.4; Cu: 0.20 to 0.5; Ti: 0.01 to 0.1; Mg0.5; V0.4; others, each 0,05; total0.15; The balance being aluminium. The production method comprises preferably a homogenization in two steps: (a) in the temperature range from 590`C to 610`C during 2 to 36 hours; (b) in the temperature range from 450`C to 500`C during 30 minutes to 24 hours. The alloy is mainly used for manufacturing large heat exchangers. |
