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g aE4E Ll=.(nipple;ol €tB I E ol 9l9sE +elsll"t aJ4. iro @ :.H9 HI +€- +EXq zIEts #zl+"1+ 70 A+g ^I+6Iq .r'l,t'lal gzliol EqEfl 60 4. (rH 7 +e) g so " ,L @ =g+ Eg Ll+ s4 g-L 9lsE *7)71 '1; 40 h t9E E"lzI d+ trzl dalzlgE Ri 30 tl+a}zl +gg allo} t4. zo GD 'J+ag F'J.J4. ro O +EI+ 7H 44= - "JZ(Si-Mn) E= qls- o uj4(Fe-Mn)9 F"J++. (-s. 3, 4, s +=) @ *allzlql F"Jq= Si-Mnol4 Fe-Mn* + ,JE ,+tl+E "J7'l6}a, *4 Ea, "Jtg 4 =*6.| -H_+6IE+ 6J4. (4 +r}fl Ei=*g q+.J+. O ,IE7l + 8o%4E +9lg 4 Cgg ilA 6Iq Ealc;et9 "JoI+4. @ +A=*g el+6l.= ,.JBql= €zl zlzlzl 9lzltrJ E4s_e= rltol 44eE E*s -tr dzlalEzl :4qlrlql E+ E* ^le g 6Iq +4=*g +A'J+. eD 4sl4(C4q)g -+=4. O zIEzI Sd6l *;1l9zl 9*9ieE ti= tq -+q Sd6l *al9E+ +4. 15tJ 200 250 300 350 400 450 500 550 600 zlE (cm) ral 6 E+ ^l=oil rHEI E+ AaJ za Z-rT 7)i + oI C E(%) xlCE}*CE(%) Mn C Si P S C Si P 7+4 Fe-Mr l.o. leMnH( 78-82 r.5ola} t.zo)al l..loolal l.ozolri :.sola] 1-O. leMnH /.J-ia, t.3olsl t.zola] i.loolol r.o2olel :.lolaI ?EA ie-N{n lE reMnlr{( 80-8.5 .o ol6l t.s olal an ol;l i.OZoloi solr} 300 5 Z-s- lelvlnM 75-80 z.oolol ool 6] j.{ ro o i.trz ol al zoolo ^l+4 le-Mr ]E FeMnLC 80-8.5 oolrl 1.5 old] I 350 0 t.ozolal 5ool zool tool t.oolal t5olr 1 _ s. FeMnLl 75-80 r.oolal r.sola] 400 ;l i.tool; 4 rc - l|li+4 ral 7 =7lBel =+ @ +4:7= HoI olol 4sE 4 E14, oJA 5l E 3 rllE-"JZJ( Fe-vn)el El+5E ( Nso3712o) I teE 4'*=* +"J+4. @ g"Jg .ldJ^l7lr +gg 4l+6}q =+. @ *rJg +E6l -il.q}6}q 3s. E+.21 7= 4l qE+ +4. (uI) ^lE-= ila6lq E4aJ+. O +q pl* CE"l +E CEH4 +t =oI zlE+ 6Iq olQ+ *g "flE slz|E 6Iq 7I+g a}r Fe-vtn, Si-Mng F"J++. @ 44.213 =4++. S;tlz| +EqE drlzl E Hi4= =e6lq g+dg *xlaJ4. 6. ^l _ E= trJg-drl. eD ^lE nlA ^SoE =4lr= 'Jq qlr lt A ++ *E +'+g -il.El6}l :I A ++. E 4 E{lE-!al=(Fe-si)el Elqf 5E JHP FIP l"/ RP z= -&n' 7liL. El q c Erxl zlC+olCE(%) S C P S C P AI F'eSi 1-q F'Si1 88-93 l.zolo} t.osolal i.oz olal l* L _v- FSi2 75-80 r.z ol o] l.oiolal .ozolal o.rolEl l.osolo] .otolul .otolal t oolul o solol l-q- FSi3 ,10-4 r.z ol aI :.osolol t.ozol;l 5a FSi6 t4-20 t.e ol o-l l.osolal t.ooolal -190- I