132page

^1t4tr Pl=r1 ^^t ^{^ 125 zl 9+e flz}4 d?-l= ts}+i 4lE=rlE flzlE4 aql 6IEE^] ol5 flzlz} e zt5cql Elxl= €.J9 zJarlzJts 7)etr d4gl gl+. qB? eE= 400 - 500 c olq ^lzlg 30 - 60B0l !_Eol+. +* % d4= 600 10 20 30 40 50 60 70 80 90 ?* Eo si 0.5 1.0 1.5 0.16 (0.17 ) (Al) +Si t4r2T o[s flzl Eo rlo 1 si/ / K 5777 ,f 11.3 (1 1.7) Si 0 10 20 30 40 50 60 70 80 90 100 4zl N d4= 1 500 1 400 l 300 1 200 1 100 I 000 900 .r 200 trl oll 300 100 600 500 400 r= 3-37 g+ElE-€4=zl /