I-Ocean engineering steel pipe design kanye nokukhethwa, ukucaciswa kuhambisana nokuhlukaniswa kwesakhiwo sensimbi yobunjiniyela basolwandle, futhi kubhekiselwa ku-API (isikhungo saseMelika sikaphethiloli), i-AISC (umphakathi waseMelika wesakhiwo sensimbi), i-ASTM (umphakathi waseMelika wokuhlola nezinto zokwakha. ), i-ANSI (isikhungo samazinga kazwelonke saseMelika), i-ASTM (umphakathi waseMelika wokuhlola nezinto zokwakha), i-AWS (umphakathi we-welding waseMelika), i-NACE (inhlangano kazwelonke yonjiniyela bokugqwala) izindinganiso neziqondiso. Isidingo sezinto zamapayipi ensimbi yobunjiniyela bolwandle, ngokuyisisekelo siyisidingo sepuleti lensimbi ngokwalo, linensimbi ye-carbon ephansi, insimbi enamandla amakhulu, insimbi yamandla aphakeme kakhulu, insimbi engagqwali izigaba ezine. Yisho amaphuzu amabili lapha:
(1) ubunjiniyela basolwandle bempahla engenisiwe kakhulu. Kwesinye isikhathi ukukhiqizwa kweshubhu lensimbi laseBrithani kuyizidingo zekhwalithi ephezulu. Ebunjiniyela basolwandle kungokwendawo ekhethekile yeshubhu lensimbi, i-100% yayo yonke imfuneko yokuhlolwa kwe-weld ultrasonic (UT – Ultrasonictesting) nokuhlolwa kazibuthe (MT – Magnetictesting). Kufakwe esakhiweni esiyinhloko sepayipi yensimbi, ebangeni lama-300 mm kuzo zombili iziphetho ze-longitudinal seam kudinga i-100% UT ne-MT.
(2) ukukhiqizwa kwe-pipe node kungokwakho okuqukethwe okubalulekile kwezobunjiniyela basolwandle. Izimboni ezikhethekile ze-pipe node phesheya, kanye nezasekhaya zakhiwe iyunithi. Umthamo wamathani angu-52000, isibonelo, “ubungani” bolwandle lwe-bohai, iyunithi yokugcina impahla entantayo (FPSO, nokuqeqesha enye yemikhumbi eyishumi edumile yaseChina) ye-special soft just arm (YOKE) i-YOKE mooring system kanye nobakaki wokusekela, umbhoshongo wethoshi, ukwesekwa kweplatifomu yendiza enophephela emhlane, njll. Kukhona ama-node angama-221, ukuhlangabezana nezidingo ze-AISC, AWS. Ipayipi elingu-59 km ubude (kuhlanganisa ne-remote control hydraulic tube 28 km, 119 valvu yesilawuli kude, umgwaqo wethangi ongu-48). Indawo yomkhumbi ukuze uqinisekise ikhwalithi yokwakha, khetha ezinkulungwaneni zamashisela inqwaba ye-welding enhle kakhulu, i-15 yokugcina ifaneleka njengo-6 gr womphakathi wokuhlukanisa. In ocean engineering ukuze kuvinjwe ukuvuza kawoyela negesi ohlelweni, ayimukelwa steel ipayipi flange uxhumano, futhi usebenzisa argon arc Welding. Amaqembu amathathu we-TIG welder shipyard futhi adinga ukuqeqeshwa okukhethekile.