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^112tr g+trlEzl r -Br-= 221 71. Al-Cu4l -Br= 5^l ol .J+g oI*4 =Colq, +rg "tl ae .J.)iiz| fzltrc oE Bcg-2, +4HI *ol +4l3 "I= fzltr€^lolE ae"J4lql "JFplts+4E sIdJEol Bc9q +E g zlEE +Alg4. tr B 10-451el =C g cu 4.8o/o, si 7.07o/o, al.*nl , 7iA) !-ol. a(Al2cu)el sl*E_tr 0.5cc, HzO 99.5cc r}$alts+. 0r.A2Cu), N(Al7Cu2Fe) o{Al) BiAl2CLr l N(A1,Cu2Fe) (a) (x100) ral 10-45 AC1A 44 (a) (x500) L|-. Al-Cu-SiAl -Br.= I^] +:r= +adg +Z16Ir, +4. €+Cg " .J^J^14 .11'JCg +416I= +++ EL +olq , +E zl*zlel rlaE+ o E ^I+q -I., oJF"ltszl^lql +C +ie+ 3g+A ol '|441 914. tre 0.23%(BJ+B :ACIA)olt, Alzlzl q1 ?€ i= =4 ol4. olrll +4 . _ B g HF lfur raJ 10-46 AC24(lautal) 14 5i