Flangesndi zigawo zooneka ngati diski zomwe zimagwiritsidwa ntchito kwambiri popanga mapaipi.Flangesamagwiritsidwa ntchito ziwiriziwiri komanso zofananiraflangespa mavavu. Mu engineering pipeline,flangesamagwiritsidwa ntchito makamaka polumikiza mapaipi. Pakufunika kulumikiza payipi, mitundu yonse ya kukhazikitsa flange, otsika kuthamanga payipi angagwiritse ntchito wayaflange, ntchito kuwotcherera flange kuposa 4 kilogalamu kuthamanga. Onjezerani gasket yosindikiza pakati pa awiriflanges, ndiyeno kumangitsa ndi bawuti.Flangesndi zovuta zosiyanasiyana zimakhala ndi makulidwe osiyanasiyana ndikugwiritsa ntchito mabawuti osiyanasiyana.

Poyerekeza ndi carbon steel, chitsulo chosapanga dzimbiri chili ndi izi:
1) kutsika kwamphamvu kwamagetsi, pafupifupi 5 nthawi za carbon steel.
2) Large linear extulation coefficient, 40% yaikulu kuposa carbon steel, ndipo ndi kuwonjezeka kwa kutentha, mzere wowonjezera wowonjezera wa mtengowo ukuwonjezeka moyenerera.
3) Low matenthedwe madutsidwe, pafupifupi 1/3 wa carbon zitsulo.
Zindikirani:
1. Pofuna kupewa dzimbiri pakati pa maso chifukwa cha kutentha kwa chivundikiro cha flange, kuwotcherera pakali pano sikuyenera kukhala kwakukulu, pafupifupi 20% pansi pa carbon steel electrode, arc sayenera kukhala yaitali kwambiri, kuzizira kofulumira pakati pa zigawo, ndi mkanda wopapatiza wa weld ndi woyenera.
2. Elekitirodi ayenera kukhala youma pamene ntchito, titaniyamu kashiamu mtundu ayenera zouma ndi 150 ℃ kwa ola 1, otsika A mtundu haidrojeni ayenera zouma ndi 200-250 ℃ kwa ola 1 (osati mobwerezabwereza kuyanika, apo ayi ❖ kuyanika n'kosavuta kusweka ndi flake), kuteteza elekitirodi ❖ kuyanika ndodo ndodo mafuta ndi dothi zina, kuti zisamakhudze okhutira ndi seam kuonjezera seam carbon.

3.flangekuwotcherera chitoliro, mobwerezabwereza Kutentha carbide mpweya, kuchepetsa kukana dzimbiri ndi mawotchi katundu.
4. chromeflangezovekera pambuyo kuwotcherera kuumitsa American flange ndi yaikulu, yosavuta kusweka. Ngati mtundu womwewo wa chromium zosapanga dzimbiri elekitirodi (G202, G207) kuwotcherera, ayenera kuchitidwa pamwamba 300 ℃ preheating ndi za 700 ℃ pambuyo kuwotcherera wosakwiya kuzirala mankhwala. Ngati kuwotcherera sikungathe kuthandizidwa pambuyo kuwotcherera, electrode ya chitoliro cha flanged (A107, A207) iyenera kugwiritsidwa ntchito.
5.flange, pofuna kupititsa patsogolo kukana kwa dzimbiri ndi kuwotcherera ndikuwonjezera kuchuluka koyenera kwa zinthu zokhazikika Ti, Nb, Mo, etc., weldability ndi bwino kuposa chrome flange. Mukamagwiritsa ntchito mtundu womwewo wa chromium flange elekitirodi (G302, G307), iyenera kutenthedwa kale kuposa 200 ℃ ndi kutenthedwa pambuyo pakuwotcherera pafupifupi 800 ℃. Ngati kuwotcherera sikungathe kutenthedwa, ma elekitirodi owotcherera chitoliro (A107, A207) ayenera kugwiritsidwa ntchito.
6.Flangedzopangira mapaipi, kuwotcherera bataniflangeElectrode imakhala ndi kukana kwa dzimbiri komanso kukana kwa okosijeni, yomwe imagwiritsidwa ntchito kwambiri mumankhwala, feteleza wamankhwala, mafuta, kupanga makina azachipatala.