I-ERW iyipayipi elishiselwe imvamisa ephezulu yokumelana ne-welding-straight seam; I-LSAW ifakwe emanzini i-arc welding-straight seam eshiselwe ipayipi; womabili angawamapayipi ashiselwe ngomthungo oqondile, kodwa inqubo yokushisela nokusetshenziswa kwawo kokubili kuhlukile, ngakho awakwazi ukumela amapayipi ashiselwe ngomthungo oqondile ewodwa. Amapayipi ashiselwe we-SSAW-spiral welding-spiral avame kakhulu.

Umehluko nokusetshenziswa kwamapayipi ensimbi e-ERW, LSAW kanye ne-SSAW

I-Sight seam high frequency (ERW steel pipe) ihlukaniswe nge-induction welding kanye ne-welding yokuxhumana ngezindlela ezahlukene zokushisela. Isebenzisa amakhoyili abanzi agoqelwe ngokushisayo njengempahla eluhlaza. Ngemuva kokugoba kwangaphambili, ukubunjwa okuqhubekayo, ukushisela, ukwelashwa kokushisa, ukunamathisela, ukuqondisa, ukusika, kunezinzuzo zama-welds amafushane, ukunemba okuphezulu kwe-dimensional, ukushuba kodonga olufanayo, ikhwalithi enhle yendawo kanye nokucindezela okuphezulu uma kuqhathaniswa nokuvunguza. Kodwa-ke, okubi ukuthi amapayipi anezindonga ezincane kuphela anama-diameter amancane naphakathi angakhiqizwa. I-Fusion, i-groove-like corrosion defects. Izindawo ezisetshenziswa kakhulu njengamanje igesi yemvelo yasemadolobheni kanye nokuthuthwa kwemikhiqizo kawoyela ongahluziwe.

Umthungo oqondile we-arc welding (ipayipi lensimbi ye-LSAW) ikhiqizwa kusetshenziswa ipuleti elilodwa eliphakathi nendawo neliwugqinsi njengempahla eluhlaza, ukucindezela (ukugingqa) ipuleti lensimbi emshinini wokubunjwa noma wokwakha, ukushisela i-arc engaphansi kwezinhlangothi ezimbili, nokwandisa ububanzi. Umkhiqizo oqediwe unezinhlobonhlobo zokucaciswa, ukuqina okuhle kwe-weld, ipulasitiki, ukufana nokuminyana, futhi unezinzuzo zobubanzi bepayipi elikhulu, udonga lwamapayipi aminyene, ukumelana nokucindezela okuphezulu, ukumelana nokushisa okuphezulu nokumelana nokugqwala. Uma wakha amandla aphezulu, ukuqina okuphezulu, ikhwalithi ephezulu yamapayipi kawoyela negesi amabanga amade, amapayipi ensimbi adingekayo iningi lobubanzi obuwugqinsi olunodonga oluqondile lwe-arc eqondile. Ngokwezinga le-API, emapayipini amakhulu kawoyela negesi, lapho udlula ezindaweni ze-Class 1 kanye ne-Class 2 (njengezindawo zezintaba, ulwandle, nezindawo zasemadolobheni eziminyene), i-arc engaphansi kwamanzi eqondile iwukuphela kohlobo olukhethiwe lwepayipi. Ngokuya ngezindlela ezihlukene zokwakha, ingahlukaniswa ibe: U0E/JCOE/HME.

I-Spiral submerged arc welding (SSAW steel pipe) isho ukuthi lapho igoqa ipayipi, isiqondiso sayo sangaphambili sise-engeli (esishintshayo) emgqeni ophakathi wepayipi lokwakha, futhi ukushisela kwenziwa ngesikhathi sokwakhiwa, futhi i-weld yayo yakha umugqa ovunguzayo. Inzuzo ukuthi ukucaciswa okufanayo kungakhiqiza amapayipi ensimbi amadayimitha ahlukahlukene, izinto zokusetshenziswa zinezinhlobonhlobo zokuguquguquka, i-weld ingagwema ukucindezeleka okuyinhloko, futhi ukucindezeleka kuhle. Okubi ukuthi usayizi wejometri awulungile. Ubude be-weld bude kunobomthungo oqondile. Imifantu, ama-pores, inclusions ye-slag kanye nokuphambuka kwe-welding kujwayele ukwenzeka. Ngokukhubazeka kokushisela, ingcindezi yokushisela isesimweni sokucindezeleka.

Imininingwane yedizayini yamapayipi avamile kawoyela negesi amabanga amade ibeka ukuthi i-arc engaphansi kwe-spiral ingasetshenziswa kuphela Ezindaweni ze-Class 3 kanye ne-Class 4. Ngemva kokuthuthukisa inqubo phesheya, izinto zokusetshenziswa zithathelwa indawo amapuleti ensimbi ukuze ahlukanise ukwakha kanye nokushisela. Ngemuva kokushisela kwangaphambili nokunemba, ububanzi be-welding buzokhula ngemuva kokushisela okubandayo. Ikhwalithi yokushisela iseduze nepayipi le-UOE.
Njengamanje, ayikho inqubo enjalo e-China. Lesi isiqondiso sokuthuthukiswa kwefekthri yethu. Ipayipi elithi "West-East Gas Transmission" lisakhiqizwa ngokwenqubo yendabuko, kodwa ububanzi bokuphela kwepayipi bunwetshiwe.
I-United States, Japan kanye neJalimane ngokuvamile bayenqaba ukusebenzisa i-SSAW futhi bakholelwa ukuthi ulayini oyinhloko akufanele usebenzise i-SSAW.
I-Canada ne-Italy isebenzisa kancane i-SSAW, kanti i-Russia isebenzisa i-SSAW ngamanani amancane. Bakhe imibandela eyengeziwe eqinile kakhulu. Ngenxa yezizathu zomlando, imigqa eminingi ye-trunk yasekhaya isasebenzisa i-SSAW. Impahla eluhlaza iguqulwa ibe ipuleti lensimbi ukuze ihlukanise ukwakha nokushisela. Ngemuva kokushisela kwangaphambili nokunemba, ububanzi be-welding buzonwetshwa ngemuva kokushisela okubandayo. Ikhwalithi yokushisela iseduze nepayipi le-UOE.
Ipayipi elishiselwe ngomthungo oqondile we-ERW ngokuvamile lisetshenziswa njengebhokisi lezintambo embonini kagesi. Izici zokusebenza: Ukuhlolwa kwe-ultrasonic kwe-100% yezinto zomzali kuqinisekisa ikhwalithi yangaphakathi yomzimba wepayipi; ayikho inqubo yokugundwa kwe-disc-unwinding, futhi impahla yomzali inomgodi nokuklwebheka okuncane; ipayipi eliqediwe ngemva kokuqedwa kokucindezeleka ngokuyisisekelo alinakho ukucindezeleka okusalayo; i-weld ifushane futhi amathuba okuba neziphambeko mancane; ingathwala ngokwemibandela igesi yemvelo emuncu eswakeme; ngemva kokunwetshwa kobubanzi, ukunemba kosayizi wejometri wepayipi lensimbi kuphezulu; i-welding yenziwa ngendlela eqondile endaweni evundlile ngemuva kokuqedwa kokwakhiwa, ngakho-ke ukungahambi kahle, ukuvulwa komthungo, kanye nomjikelezo wobubanzi bepayipi kulawulwa kahle, futhi izinga lokushisela lihle kakhulu. Amazinga asebenzisekayo womkhiqizo: API 5L, API 5CT, ASTM, EN10219-2, GB/T9711, 14291-2006 namanye amazinga akamuva. Amamaki ensimbi yomkhiqizo ahlanganisa: GRB, X42, X52, X60, X65, X70, J55, K55, N80, L80, P110, njll. Imikhiqizo isetshenziswa kabanzi kumafutha, igesi yemvelo, igesi yamalahle, izimayini zamalahle, imishini, ugesi, ukunqwabelanisa nezinye izinjongo. Imishini yobuchwepheshe benqubo ethuthukisiwe: njengokubumba kwe-W-FF, ukushisela okuqinile kwe-high-frequency induction, ukutholwa kwamaphutha e-ultrasonic, ukutholwa kwamaphutha kazibuthe okuvuza, namathuluzi okuhlola asezingeni eliphezulu: njengokuhlaziya i-metallographic, isihloli sokuqina kokuqina kwe-Vickers, umshini wokuhlola umthelela, i-spectrum analyzer, umshini wokuhlola uwonke wonke nezinye izinto zokusebenza. Imikhiqizo ithunyelwa eNingizimu Melika, eNyakatho Melika, e-European Union, eNingizimu-mpumalanga Asia nakwezinye izindawo. Phakathi neminyaka edlule, bemukelwe kahle amakhasimende emhlabeni wonke.

Inkampani yethu ihlinzekaEN10210I-S235JRH, S275JOH, S275J2H, S355JOH,I-S355J2H, S355K2H, enemininingwane esukela kububanzi obungaphandle 219-1216, ukujiya kodonga 6-40, kanye newaranti yasembonini yasekuqaleni. Amakhasimende emhlabeni jikelele amukelekile ukuthenga.