Izinqubo Zokushisela Amapayipi Ensimbi e-SSAW Emigqa Yegesi

Incazelo emfushane:

Uma kukhulunywa ngokufakwa kwamapayipi egesi, ukuqinisekisa ukuphepha nokuthembeka kohlelo kubalulekile. Isici esibalulekile sale nqubo inqubo yokushisela esetshenziswa ukuhlanganisa izingxenye ezahlukene zepayipi legesi, ikakhulukazi uma kusetshenziswa ipayipi lensimbi le-SSAW. Kule bhulogi, sizohlola ukubaluleka kwezinqubo ezifanele zokushisela amapayipi ekufakweni kwamapayipi egesi kusetshenziswa ipayipi lensimbi le-SSAW.

Sithumelele i-imeyili

Imininingwane Yomkhiqizo

Amathegi Omkhiqizo

Ipayipi lensimbi le-SSAW, eyaziwa nangokuthi ipayipi elihlanganisiwe le-arc elingaphansi komhlaba, livame ukusetshenziswa ekufakweni kwamapayipi egesi ngenxa yokuqina kwawo nokuqina kwawo. Kodwa-ke, ukusebenza kahle kwala mapayipi kuncike kakhulu kwikhwalithi yezinqubo zokushisela ezisetshenziswa ngesikhathi sokufakwa. Amasu okushisela angalungile angabangela amalunga abuthakathaka futhi alimele, okuholela ezingozini zokuphepha ezingaba khona kanye nokwehluleka kohlelo.

Impahla Yomshini

ibanga lensimbi	amandla amancane okukhiqiza I-Mpa		Amandla okudonsa		Ukwandiswa okuncane %	Amandla amancane omthelela J
ibanga lensimbi	Ubukhulu obucacisiwe mm		Ubukhulu obucacisiwe mm		Ubukhulu obucacisiwe mm	ekushiseni kokuhlolwa kwe-
	16	＞16≤40	＜3	≥3≤40	≤40	-20℃	0℃	20℃
S235JRH	235	225	360-510	360-510	24	-	-	27
S275J0H	275	265	430-580	410-560	20	-	27	-
S275J2H	275	265	430-580	410-560	20	27	-	-
S355J0H	365	345	510-680	470-630	20	-	27	-
S355J2H						27	-	-
S355K2H						40	-	-

Esinye sezici ezibalulekile ekuqinisekiseni ubuqotho bokufakwa kwepayipi legesi kusetshenziswa ipayipi lensimbi elihlanganisiwe eliyi-spiral submerged arc ukukhethwa kwenqubo yokushisela efanele. Lokhu kuhlanganisa ukucatshangelwa ngokucophelela izindlela zokushisela, izinto zokugcwalisa kanye nokulungiselela ukushisela kwangaphambili. Ngaphezu kwalokho, ukuhambisana nezindinganiso nemithethonqubo yemboni kubalulekile ekuqinisekiseni ukuthembeka nokuphephaumugqa wephethilolisizinhlelo.

Ukulungiselela kahle ukushisela ngaphambi kokusebenzisa i-welding kubalulekile ukuqinisekisa ukushisela ngempumelelo amapayipi ensimbi afakwe i-spiral arc afakwe ku-incline ekufakweni kwe-gas line. Lokhu kuhilela ukuhlanza okuphelele nokuhlola ubuso bepayipi ukuze kususwe noma yikuphi ukungcola noma amaphutha angathinta ikhwalithi yokushisela. Ngaphezu kwalokho, ukuze kufezwe ukushisela okuqinile nokuthembekile, ipayipi kumele lilinganiswe futhi liqondiswe ngokunembile.

isakhiwo esihlanganisiwe esenziwe ngobandayo

Ngesikhathi senqubo yokushisela yangempela, ukunaka imininingwane nokunamathela enkambisweni efanele kubalulekile. Ukukhetha indlela yokushisela efanele, kungaba yi-TIG (i-tungsten inert gas welding), i-MIG (i-metal inert gas welding) noma i-SMAW (i-stick arc welding), kumele kukhethwe ngokusekelwe ezidingweni ezithile zokufakwa kwephayiphi legesi. Ngaphezu kwalokho, ukusetshenziswa kwezinto zokugcwalisa ezisezingeni eliphezulu kanye nezinqubo zokushisela ngokucophelela kubalulekile ekukhiqizeni ama-weld athembekile futhi ahlala isikhathi eside ahlangabezana nezidingo zokusebenza kwamaphayiphi egesi.

Ngaphezu kwalokho, ukuhlolwa nokuhlolwa kwangemva kokushintshwa kwegesi kuyizinyathelo ezibalulekile zokuqinisekisa ikhwalithi yokushintshwa kwegesi kanye nobuqotho ekufakweni kwamapayipi egesi kusetshenziswa ipayipi lensimbi le-SSAW. Izindlela zokuhlola ezingonakalisi, njengokuhlolwa kwe-x-ray kanye nokuhlolwa kwe-ultrasound, zingasiza ekuboneni noma yiziphi iziphambeko noma ukungaqhubeki okungaba khona emajoyintini ashisiwe ukuze alungiswe ngokushesha futhi kuqinisekiswe ukuthembeka kohlelo lwakho lwamapayipi egesi.

Ngamafuphi, izinqubo ezifanele zokushisela zibalulekile ekufakeni imigqa yegesi kusetshenziswa amapayipi ensimbi ahlanganisiwe angaphansi komhlaba. Ubuqotho nokuphepha kohlelo lwakho lokushisela igesi kuncike kwikhwalithi yokushisela kwakho, ngakho-ke amazinga embonini yokushisela kanye nemikhuba emihle kumele kulandelwe. Ngokubeka phambili ukulungiswa okufanele kokushisela, amasu okushisela ngokucophelela, kanye nokuhlolwa okuphelele ngemva kokushisela, abafaki bamapayipi egesi bangaqinisekisa ukuthembeka nokuphepha kokufakwa kwamapayipi ensimbi e-SSAW kwezicelo zamapayipi egesi.