Iinkqubo zokuwelda kweMibhobho yentsimbi ye-SSAW yeeNdlela zeGesi

I-SSAW Steel Pipe Welding Procedures for Gas Lines Featured Image

Inkcazelo emfutshane:

Xa kuziwa kufakelo lombhobho werhasi, ukuqinisekisa ukhuseleko nokuthembeka kwenkqubo kubalulekile. Inkalo ephambili yenkqubo yinkqubo ye-welding esetyenziselwa ukujoyina amacandelo ahlukeneyo ombhobho wegesi, ngakumbi xa usebenzisa umbhobho wensimbi we-SSAW. Kule bhlog, siya kuhlolisisa ukubaluleka kweenkqubo ezifanelekileyo zokudibanisa umbhobho ekufakeni umbhobho wegesi usebenzisa umbhobho wensimbi we-SSAW.

Thumela i-imeyile kuthi

Iinkcukacha zeMveliso

Iithegi zeMveliso

Umbhobho wentsimbi we-SSAW, ekwaziwa ngokuba ngumbhobho odityanisiweyo we-arc, usetyenziswa ngokuqhelekileyo kufakelo lwemibhobho yerhasi ngenxa yokuqina kunye namandla. Nangona kunjalo, ukusebenza kwale mibhobho kuxhomekeke kakhulu kumgangatho weenkqubo ze-welding ezisetyenziswa ngexesha lofakelo. Ubuchule be-welding obungafanelekanga bunokubangela ukuba amalungu abuthathaka kwaye wonakaliswe, okukhokelela kwiingozi ezinokubakho zokhuseleko kunye nokungaphumeleli kwenkqubo.

IPropati yoomatshini

ibakala lentsimbi	ubuncinci amandla esivuno Mpa		Tensile strength		Ubuncinci bobude %	Ubuncinci bempembelelo yamandla J
ibakala lentsimbi	Ubukhulu obucacisiweyo mm		Ubukhulu obucacisiweyo mm		Ubukhulu obucacisiweyo mm	kuvavanyo lobushushu be
	＜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	-	-

Enye yezinto eziphambili ekuqinisekiseni ingqibelelo yofakelo lombhobho werhasi usebenzisa i-spiral submerged arc welded steel pipe kukukhethwa kwenkqubo yokuwelda efanelekileyo. Oku kubandakanya ukuqwalaselwa ngokucophelela kweendlela ze-welding, izinto zokuzalisa kunye nokulungiswa kwangaphambili kwe-weld. Ukongeza, ukuthotyelwa kwemigangatho yoshishino kunye nemimiselo kubalulekile ekuqinisekiseni ukuthembeka kunye nokhuseleko lweumgca wegesisiinkqubo.

Ulungiselelo olululo lwaphambi kokuwelda lubalulekile ukuqinisekisa ukuwelda okuyimpumelelo kwemibhobho yentsimbi edityanisiweyo ye-arc edityanisiweyo kufakelo lomzila wegesi. Oku kubandakanya ukucocwa ngokucokisekileyo kunye nokuhlolwa kwendawo yombhobho ukususa nayiphi na into engcolileyo okanye iziphene ezinokuchaphazela umgangatho we-weld. Ukongezelela, ukufezekisa i-weld enamandla kwaye inokwethenjelwa, umbhobho kufuneka ulinganiswe ngokuchanekileyo kwaye ulungelelaniswe.

Ngexesha lenkqubo ye-welding yokwenyani, ingqalelo kwiinkcukacha kunye nokubambelela kubuchule obuchanekileyo kubalulekile. Ukukhetha indlela ye-welding efanelekileyo, ingaba i-TIG (i-tungsten inert gas welding), i-MIG (i-metal inert gas welding) okanye i-SMAW (i-stick arc welding), kufuneka ikhethwe ngokusekelwe kwiimfuno ezithile zokufakelwa kombhobho wegesi. Ukongeza, ukusetyenziswa kwezixhobo zokuzalisa ezikumgangatho ophezulu kunye neenkqubo zokuwelda ngononophelo zibalulekile ekuveliseni ii-welds ezithembekileyo nezizinzileyo ezihlangabezana neemfuno zokusebenza kwemibhobho yegesi.

Ukongezelela, ukuhlolwa kwe-post-weld kunye nokuvavanya ngamanyathelo abalulekileyo okuqinisekisa umgangatho we-weld kunye nokuthembeka kufakelo lombhobho wegesi usebenzisa umbhobho wensimbi we-SSAW. Iindlela zokuvavanya ezingonakalisi, ezinje ngovavanyo lweradiyographic kunye novavanyo lwe-ultrasonic, zinokunceda ekuchongeni naziphi na iziphene okanye ukungaqhubeki kumalungu adityanisiweyo ukuze alungiswe ngokukhawuleza kwaye aqinisekise ukuthembeka kwenkqubo yakho yombhobho werhasi.

Isishwankathelo, iinkqubo zokuwelda ezichanekileyo zibalulekile ekufakeni imigca yegesi usebenzisa i-spiral submerged arc welded steel pipes. Ingqibelelo kunye nokhuseleko lwenkqubo yakho yombhobho wegesi ixhomekeke kumgangatho we-welding yakho, ngoko ke imigangatho yoshishino lwe-welding kunye neendlela ezifanelekileyo kufuneka zilandelwe. Ngokubeka phambili ukulungiselela okufanelekileyo kwangaphambili, ubuchule bokuwelda ngokucokisekileyo, kunye nokuhlolwa ngokucokisekileyo emva kwe-weld, abafakeli bemibhobho yegesi banokuqinisekisa ukuthembeka kunye nokhuseleko lofakelo lwemibhobho yentsimbi ye-SSAW kwizicelo zemibhobho yegesi.