Ama-Flangesizingxenye ezimise okwediski ezisetshenziswa kakhulu ekufakeni amapayipi.Ama-Flangeszisetshenziswa ngababili nangokuqondanisaama-flangekuma-valve. Kubunjiniyela bepayipi,ama-flangeasetshenziselwa ikakhulukazi ukuxhuma amapayipi. Ngesidingo sokuxhuma ipayipi, zonke izinhlobo zokufakwa kwe-flange, ipayipi eliphansi lokucindezela lingasebenzisa ucingoi-flange, ukusetshenziswa kwe-welding flange ngaphezu kwamakhilogremu angu-4 wokucindezela. Engeza i-gasket yokuvala phakathi kokubiliama-flange, bese uqinisa ngebhawodi.Ama-Flangesnezingcindezi ezihlukene zibe nobukhulu obuhlukene futhi zisebenzisa amabhawodi ahlukene.

Uma kuqhathaniswa ne-carbon steel, insimbi engagqwali inalezi zici ezilandelayo:
1) izinga eliphezulu likagesi elingalungile, cishe izikhathi ezi-5 ze-carbon steel.
2) I-coefficient yokunweba yomugqa omkhulu, ngo-40% mkhulu kune-carbon steel, futhi ngokukhuphuka kwezinga lokushisa, i-coefficient yomugqa yokwandisa yenani nayo iyanda ngokufanele.
3) I-conductivity ephansi yokushisa, cishe i-1/3 yensimbi ye-carbon.
Qaphela:
1. Ukuze uvimbele ukugqwala phakathi kwamehlo ngenxa yokushisa kwekhava ye-flange, i-welding current akufanele ibe nkulu kakhulu, cishe ngo-20% ngaphansi kwe-carbon steel electrode, i-arc akufanele ibe yinde kakhulu, ukupholisa okusheshayo. phakathi kwezingqimba, futhi ubuhlalu obuncane be-weld bufanelekile.
2. i-electrode kufanele igcinwe yomile uma isetshenziswa, uhlobo lwe-titanium calcium kufanele lomiswe ngo-150 ℃ ihora elingu-1, uhlobo oluphansi lwe-Hydrogen kufanele lomiswe ngo-200-250 ℃ ihora elingu-1 (hhayi ukomiswa okuphindaphindiwe, ngaphandle kwalokho ukunamathela kulula crack and flake), ukuvimbela i-electrode coating stick oil nokunye ukungcola, ukuze kungakhulisi okuqukethwe kwekhabhoni komthungo we-welding futhi kuthinte ikhwalithi yezingxenye zokushisela.

3.i-flangeukushisela ipayipi, ngokushisa okuphindaphindiwe kwe-carbide precipitation, ukunciphisa ukumelana nokugqwala kanye nezakhiwo zemishini.
4. i-chromei-flangeokokufakwa ngemva kokushisela ukwenza lukhuni i-flange evamile yaseMelika inkulu, kulula ukuqhekeka. Uma uhlobo olufanayo lwe-electrode yensimbi engagqwali ye-chromium (G202, G207) kumele lwenziwe ngaphezu kokushisisa kuka-300 ℃ futhi cishe ku-700 ℃ ngemva kokushisela ukwelashwa kokupholisa okunensayo. Uma i-weldment ingakwazi ukwelashwa ngemva kokushisela, i-electrode yepayipi ene-flanged (A107, A207) izosetshenziswa.
5.i-flange, ukuze kuthuthukiswe ukumelana nokugqwala kanye nokushisela futhi kwandiswe inani elifanele lezinto zokuzinza i-Ti, Nb, Mo, njll., ukushisela kungcono kune-chrome flange. Uma usebenzisa uhlobo olufanayo lwe-electrode ye-chromium flange (G302, G307), kufanele ishiswe kuqala ngaphezu kuka-200 ℃ futhi ifudumale ngemva kokushisela cishe ku-800 ℃. Uma i-weldment ingakwazi ukuphathwa ngokushisa, i-electrode yokushisela yepayipi ene-flanged (A107, A207) kufanele isetshenziswe.
6.I-Flangedukufakwa kwamapayipi, ukushisela inkinobhoi-flangeI-electrode inokumelana nokugqwala okuhle nokumelana ne-oxidation, isetshenziswa kabanzi kumakhemikhali, umanyolo wamakhemikhali, uphethiloli, ukukhiqizwa kwemishini yezokwelapha.