Ngexesha lokuveliswa kweemibhobho zetsimbi ze-arc, ukushisa kufuneka kulawulwe ngokungqongqo ukuqinisekisa ukuthembeka kwe-welding. Ukuba iqondo lokushisa liphantsi kakhulu, indawo ye-welding ayinakufikelela kwiqondo lokushisa elifunekayo kwi-welding. Xa uninzi lwesakhiwo sesinyithi siseqinile, kunzima ukuba iintsimbi eziphelweni zombini zingene enye kwenye kwaye zidibanise kunye. Ngelo xesha, xa iqondo lobushushu laliphezulu kakhulu, kwakukho intsimbi eninzi kwindawo etyhidiweyo kwindawo yokuwelda. Ubume bala malungu babuthambile kakhulu kwaye bunolwelo oluhambelanayo, kwaye kunokubakho namathontsi anyibilikisiweyo. Xa intsimbi enjalo ithontsiza, Akukho ntsimbi yaneleyo ukuba ingene enye kwenye. Kwaye ngexesha le-welding, kuya kubakho ukungalingani kunye ne-welding seams ukwenza imingxuma etyhidiweyo.

Imibhobho yentsimbi ye-arc ephantsi kwamanzi ingasetyenziselwa ukuthutha ulwelo: ukunikezelwa kwamanzi kunye nokukhupha amanzi. Ukuthutha igesi: irhasi yamalahle, umphunga, igesi yepetroleum engamanzi. Ngeenjongo zesakhiwo: ukupakisha imibhobho, iibhulorho; imibhobho yeedokhi, iindlela, izakhiwo zokwakha, njl njl. . Intloko kunye nomsila wentsimbi udityaniswe ngeempundu usebenzisa i-single-wire okanye i-double-wire submerged arc welding. Emva kokuqengqeleka kumbhobho wentsimbi, i-arc welding isetyenziselwa ukulungisa i-welding. Ukusebenzisa ulawulo lwangaphandle okanye ukwenza i-roller yolawulo lwangaphakathi. Zombini i-welding yangaphakathi nangaphandle zisebenzisa oomatshini bokuwelda bombane kwi-single-single okanye i-double-wire submerged arc welding ukuze bafumane iinkcukacha ze-welding ezizinzileyo.

Luluphi uhlolo olwenziwa kwimibhobho yentsimbi ye-arc ephantsi kwamanzi emva kwemveliso?
(1) Uvavanyo loxinzelelo lwe-Hydraulic: Imibhobho yentsimbi eyandisiweyo ihlolwe nganye nganye kumatshini wokuvavanya uxinzelelo lwe-hydraulic ukuqinisekisa ukuba iipayipi zensimbi zihlangabezana noxinzelelo lovavanyo olufunwa ngumgangatho. Umatshini unokurekhoda ngokuzenzekelayo kunye nemisebenzi yokugcina;
(2) Ukwandiswa kwe-Diameter: Ubude bonke bombhobho wensimbi we-arc ophantsi kwamanzi kwandiswe ukuphucula ukuchaneka kwe-dimensional yombhobho wensimbi kunye nokuphucula ukuhanjiswa koxinzelelo ngaphakathi kombhobho wensimbi;
(3) Ukuhlolwa kwe-X-ray II: Ukuhlolwa kwe-X-reyi yoshishino lukamabonwakude kunye ne-pipe end weld photography yenziwa kumbhobho wentsimbi emva kokwandiswa kobubanzi kunye novavanyo loxinzelelo lwe-hydraulic;
(4) Ukuhlolwa kwesuntswana lemagnethi kwiziphelo zemibhobho: Olu hlolo lwenziwa ukufumanisa iziphene zokuphela kombhobho;
(5) Ukuhlolwa kwe-X-ray I: Ukuhlolwa kwe-X-ray ye-industrial ye-welds yangaphakathi nangaphandle, usebenzisa inkqubo yokucubungula umfanekiso ukuze kuqinisekiswe uvakalelo lokufumanisa impazamo;
(6) Hlola i-welds yangaphakathi nangaphandle yombhobho wentsimbi ejikelezayo kunye nezixhobo ezisisiseko kumacala omabini e-welds;
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(8) I-Chamfering: Inkqubo yokuphela kombhobho wombhobho wentsimbi ogqithise ukuhlolwa ukuphumeza ubungakanani obufunekayo bokuphela kombhobho bevel;
(9) I-Anti-corrosion kunye ne-coating: Imibhobho yensimbi efanelekileyo iya kuba yi-anti-corrosion kwaye igqunywe ngokweemfuno zabasebenzisi.

Ukufakelwa kombhobho wentsimbi ye-arc ephantsi kwamanzi kunye neendibano ezenziwe ngaphambili kwiplanti yokucubungula kufuneka zigqitywe ngokupheleleyo, oko kukuthi, onke ama-welding joints adityanisiwe, adibeneyo e-flange afakwe kunye namacwecwe exesha elide, kwaye zonke iibholiti ze-flange zigugile kwaye ziqinisiwe. . Ixabiso loyilo lokuthelekisa ukuphambuka komlinganiselo wangaphandle wendibano yepayipi yentsimbi ye-arc ephantsi kwamanzi ayinakudlula le migaqo ilandelayo; xa idimension yangaphandle yendibano yombhobho wentsimbi ye-arc entywiliselweyo yi-3m, ukutenxa yi-± 5mm. Xa umlinganiselo wangaphandle wendibano ye-arc yensimbi ye-arc ephantsi kwamanzi inyuka nge-1m, ixabiso lokuphambuka linganyuswa nge-± 2mm, kodwa ukuphambuka okupheleleyo akunakuba mkhulu kune-± 15mm.

Iiassemblies ezifakwe ngesandla ezineentambo ezidibeneyo okanye iivalve ziya kuvavanywa. Zonke iindibano ziya kubhalwa ngokweemfuno zombhobho omfutshane wemidwebo, kwaye iziphelo zabo zokuphuma ziya kuvalwa ngamacwecwe angaboniyo okanye iiplagi. I-flange yokuphuma ekupheleni kombhobho wendibano inokudityaniswa ngokuqinileyo ukuba imingxuma ye-flange bolt ihlukaniswe ngokulinganayo. Ukuba i-flange edibeneyo kwisixhobo okanye i-flange edibeneyo kwi-flange yesebe yamanye amacandelo, inokuthi ibonakale i-welded kwaye ibekwe ekupheleni kombhobho. Inokubekwa kuphela emva kokuba ihanjiswe kwindawo yokufakela kwaye idityaniswe ngokuqinileyo. Iivalvu kufuneka kwakhona zifakwe kwindibano, kwaye imibhobho emfutshane yogutyulo kunye nemibhobho yokukhupha umoya, ukufakwa kwesixhobo, kunye namanqaku okunyusa okufakela izibiyeli zokutyibilika kufuneka idityaniswe. Ingaphakathi lecandelo lombhobho owenziweyo kufuneka licocwe. Indibano yombhobho yentsimbi ye-arc ephantsi kwamanzi kufuneka ithathele ingqalelo ukulungelelaniswa kokuthuthwa kunye nokufakwa kwaye ibe nokuvulwa okuphilayo okuhlengahlengiswayo. Kufuneka kwakhona ibe nobungqongqo okwaneleyo ukuthintela deformation ixesha elide.