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(4) €il *+zy q € *ol 4E zJ€alZl ^l+g + 91tr1. (5) ^l* rltol *ol 4.J ^l+tr q {+ }el f,-o1 4 tr}. (6) aEq +zl= 6"J + iltrI. (z) "J 4.8171 oll+ e E€ q. tEfl.-J HH gl) (r) zl E^l ,JH g S$t\zl € a 6Iq ^I+ 6l= 4 ol +tr}. (z) SE 'X'J 6llE +BE e+ fEzl 1. Slm /sec) ol ^Jol tr ul +ql P! ol g^J tr + xlzl 91tr}. (z) dt2.79 Sa"J 4+ HE gae 14,tl tlzl 7lb6}4. (4) zJ B9zl vl'Jel HI+ zJol= t.J6l Al oil ol ts4. t -E-x{ I lolJ, (1) +d€-e e9 CEol E+g++ d+C ol ++61tr1. (2) +4lE +4ql *= ?)g ^I++tr}. (s) LPG tr.il= Hc.zI 1oJ ag d10[mm], 2= dlZ(nn), 39 d15[mn], 4= d18[mmJ, 5= 62 bn)E "J.Jtrl. (4t g + ^1) 1. AFg =HlE+ elcl. (,I) EES u-l €,q6J *+= dq+q. (+) ++E SHIalq ^l+ Hls.z1 +g f,^] 4E 4EEli elql Llg+tr}. e) ^I+ ;t+ q +Hl= d e 6Ir tg+= +"J eq. 2. x}|-EE tlEelcl.. kD Etr9 -u--L g,qe zllE= t=.Jtr1. (+) t=€ ztltr-= s.trvl 4 = .q"J.Jtr}. e) t}=+ zI E= +4 H_tr d zl +trI. (r|) 4ls= Eq SHIrIq z+B f!4 _ e z+ 94 elq L+g6lq A4.JtrI. =-=J 2 EE El{.Jq Te E 2 AtrE H Estel =d(ESA) (i) : AWS-American welding society AWS .E- -= olJ z= io.'rT t +(%) +d+ +dzlE +d+a P Ag Cu Bucp-3 2 L}EII -O }J E' 5.8-6.2 4.8-5.2 4"lzl 0so'c zr.o"c 02m AWS tr;,il olC+^llUi fltsrl flt+d+ 4 ++d gEB9] c+ t+B 4 3A FPFB+ &up.fu s-2 566-871r +t} +rlg E+E EE+tE ,dS4l e"J vll ol .,, - . e "+ ill E 3 rH-E t= EXIE HN rE Bl EO +4 Bel +"* HIT 1 2 3 4 5 6 I 8 9 10 11 72 G + LP ^I 7) gEq'J(t:15) + il -H -H _ o ,ll -Y. al zl tJ t=- o + + d-E-E *+xl P V C O84 + ri ,r.| 1700 x 850 8A 8A Bcup /2mm Aws 3A 20kg No 800 tr t15 (4x8) tslB 12oo x 0.3 6xT0 d4x60 + m z\ 1l c B zI d c + m zN zll 4 1 2 2 5 1 2 100 1 10 4 4 KS -151-