MI TN XC NH PHA HNHn tan b chu viNG THAM KHOTCh dn phng php / qui trnhFARS(E)Pha i dinPha mi tn su chun b chiu su hiu dngHAN TTTIT DINL - PGC VTK HIU CHUN B MP HNPhn ui c th khng cChiu di mi hnGch niKhang cch Cc k hiu thuc khu vcNy p dng cho pha mi tn ch

Tt c cc k hiu ghi Khu vc ny c p dngCho pha i dinTt c cc k hiu ghi Khu Vc ny c p dng cho pha mi tn ch vo

B dy chnKhe h yGc rnh hnGc vt

VT MT PHAKHNG VT C KHE HVT UK HIU MP KHNG VT LUN NM PHA TRI

VT JHN GCMI HN NT HOC RNH

VT VHN NGUVT V KT HP V MP

VT MT PHA V V MPHN P

HN TAN B CHU VIHN KHI LP / TI CNG TRNGHN NGU HAN TAN

C TM LT LNG

TIT DIN PHNGTIT DIN LITIT DIN LM

GTSMHN NGU HAI PHA / DI ( GOUGE THROUGH SOUND METAL)CJPHN NGU HAN TAN( COMPLETE JOINT PENETRATION )

NGUYN TC : K HIU GN MI TN C THC HIN TRCLP TH 1LP TH 2

LP TH 3

V D 1LP 1LP 2LP 31 2 3

V D 212 3

S (E)GO0HN LIN TCKHE H YCHIU SU HIU DNG NGUGC RNH HN

S1S2tE2E1 1Gc vt 2 1= 2=Gc m GE1=CHIU SU HIU DNGTip tuyn ng cong 3=gc m y rnhG= khe h chnG 1 2

Mt phng tham chiuKhng vt v mp 1 phaVt V v mpR (E)R (E)ES=RS= su chun bR= Bn knhE= su hiu dng900

12 (12) 0

600Gc mKhe h y su chun b su hiu dng (Kch thc mi hn) ngu yu cuKhng nht thit l mi hn ngu han tan

F4Kch thc chn mi hnKch thc chn mi hnChiu di mi hnChiu di mi hnMGMi hn c lm phng bng gia cng cTham kho qui trnh hn F4 Mi hn lm (Mi sau khi hn)Hn khi lp / hoc ti cng trngHn tan b chu vi kn

6 mm610 mm7 mmMi ni710

868080Kch thc chn mi hn( Ph mi tn ch vo )Chiu di mi hn . Nu khng ghi c ngha l mi hn lin tc

Mt pha

i Xng

Xen k

Bc = Khang cch tm hai mi hnBc = L + dBc L2L2L2L2L2L2LLLddChiu di mi hnKhang cch

Kch thcKch thcChiu di / bcChiu di / BcS1S1S2S2L1 P1L1 P1L2 P2L2 P2i xngXen k

8875 - 15075 - 150Kch thcChiu di mi hnBc

8875 - 15075 - 150Kch thcChn mi hnChiu di mi hnBcKhang cch tm mi hn

K HIU HN