(中南工業(yè)大學(xué)汽車用有色金屬材料研究所，長沙410083)
摘 要: 研究了Al-Si/Al-Mn三層復(fù)合釬焊箔冷軋復(fù)合工藝，分析了初始配對比和壓下率對軋制復(fù)合包覆率的影響；在此基礎(chǔ)上，提出了復(fù)合包覆率的經(jīng)驗(yàn)方程式。同時也分析了成品冷軋前退火溫度、退火時間對成品力學(xué)性能的影響。
關(guān)鍵字: 汽車熱交換器 鋁合金 釬焊箔 冷軋復(fù)合
THE SANDWICH ALUMINUM FOIL FOR
AUTOMOBILE HEAT EXCHANGER
（Institute of the Nonferrous Metal Materials for Automobile,
Central South University of Technology,Changsha 410083）
Abstract:The cold-roll bonding process of Al-Si/Al-Mn sandwich brazing foil was investigated, and the effect of the initial clad rate and the cold-roll deformation degree on the clad rate was analysed, on the basis of which the empirical equation of clad rate was established. Also, the effect of the temperature and time of the per-cold-roll annealing on the mechanical properties of the finished products was discussed.
Key words: automobile heat exchanger aluminum alloy brazing foil cold-roll bonding
