Ese Hejuru-Gauge 5083 Amasahani yo mu nyanja-yo mu nyanja ashobora kwihanganira umuvuduko wa metero 6.000 ya metero yo munsi ya Hydrostatike?

Ubushakashatsi bwimbitse mu nyanja, inyanja ya benthiche, hamwe na robotike yinyanja yo mu nyanja bisaba ibigo byubatswe bishobora gukora mubwimbuto bugera kuri metero 6.000. Kuri ubujyakuzimu bukabije, inyubako zihanganira umuvuduko ukabije wa hydrostatike urenga MPa 60 (hafi 8.700 psi cyangwa 600 bar) , ugahuzwa n’amazi yo mu nyanja yegeranye cyane ( 1 ° C - 4 ° C ), urugero rwa ogisijeni yashonze cyane, hamwe na chloride yibasira cyane.

Amatsinda yubwubatsi bwa Subsea mumateka yashingiye kumyitozo ikomeye ya 5 ya Titanium (Ti-6Al-4V) cyangwa nikel ikomeretsa nikel alloys (Inconel 718) kubikoresho byamazi yimbitse hamwe na skide yubatswe ya kure (ROV). Mugihe aya mavuta arwanya gukubitwa, ibikoresho byibanze byubumenyi bwikirere, uburemere buremereye busaba ifuro ya buoyancy ihenze cyane, hamwe nibikoresho byogukora imashini bitera ingengo yimari ningengabihe. Ibipimo biremereye 5083 byo mu nyanja byo mu nyanja bisize amasahani ya aluminiyumu - bitunganyirizwa mu mihangayiko, bikomereye akazi ( H116 / H321 ) kandi bikarindwa n’inyubako nini yo mu nyanja ihuza imipaka ya epoxy / polyurethane - itanga ubundi buryo buhendutse. Iyo ubaze hamwe nuburinganire bukwiye-bwa-diameter ( t / D ), bihanganira imizigo ya metero 6000 ya hydrostatike yo kwikuramo nta gusenyuka kwa elastike, bikarinda kwangirika kwinyanja, kandi bigabanya ibyumye byumye kugeza kuri 40% ugereranije ninteko za titanium..

Imbaraga zogukomeretsa & Gukanika ubukanishi bwa 5083-H116 / H321

Imiyoboro yumuvuduko wamazi, pisine ya silindrike, hamwe na capit ya end-caps ntibishobora kunanirwa mukibazo; uburyo bwabo bwibanze bwo kunanirwa nuburyo bworoshye, gusenyuka kwa plastike, cyangwa umusaruro waho munsi yo kwikuramo triaxial nyinshi :

Ubunini bw'Urukuta rufite ubunini (t / D Ikigereranyo): Kuri metero 6.000 (P = 60 MPa), amatafari y'urukuta ruto ntayemewe. Isahani iremereye ya plaque 5083 ikozwe mumazu yubukuta bwimbaraga ikoresha ingero ya silinderi yuzuye Lamé:

Igishushanyo gifite umubyimba-kuri-diameter ( t / D ≈ 0.12 - 0.18 ) ituma impagarara nyinshi zogukomeretsa mumipaka ikora neza ya 5083-H116  ( 215 MPa  umusaruro muke), bitanga umutekano ( SF ≥ 1.5 - 1.8 ).

Microstructural Homogeneity: Isahani iremereye itunganijwe hifashishijwe igenzurwa rishyushye hamwe na ultrasonic homogenisation ituma ingano imwe ihuriweho hejuru yisahani, ikuraho indege zidakomeye cyangwa micro-void imbere zishobora gusenyuka bitewe nigitutu cya triaxial.

Ubukungu bwa Buoyancy na Titanium: Titanium Icyiciro cya 5 (4.43 g / cm) isaba inkuta zibyimbye akenshi bivamo ubwiyunge bubi, bisaba ifuro ya syntactique igura hejuru ya 30 - 50 kuri litiro. Aluminium (2,68 g / cm³) itanga imbaraga nyinshi cyane-z-uburemere-bwibiro, bigabanya cyane ibiciro bya buoyancy bihenze.

Subsea Yubaka-Kwubaka

Munsi ya 60 MPa hydrostatike ya hydrostatike, molekile zamazi zijugunywa muri micro-porositike:

High-Solide Yahinduwe Epoxy-Fenolike Primer: Ibisigarira byuzuye bifatanye bifatanye neza nicyuma, birwanya ikwirakwizwa ryamazi yo mumazi munsi yumutwe wa hydraulic.

Ikariso ya Elastomeric Polyurethane: Ibice byo hejuru byoroheje bikurura uburyo bubi bwubwato bwogutangiza-no kugarura kandi bikarinda micro-fissing mugihe cyo kugabanuka kwubushyuhe kugeza kuri 1 ° C.

Kwemeza Tekinike & Imikorere ya Subsea

Kugereranya imikorere hepfo irasuzuma ibipimo biremereye 5083 byo mu nyanja yo mu nyanja irwanya ibyuma gakondo byubatswe mu nyanja.

Ubucuruzi bwo Kwishura & Ubwubatsi ROI kubigo byikoranabuhanga byinyanja

Ibibazo

Q1: Ese koko aluminiyumu ishobora kwihanganira metero 6000 yumuvuduko winyanja utaguye?

Igisubizo: Yego. Kuri metero 6.000, umuvuduko wa hydrostatike ni MPa 60 (8,700 psi). Mugusobanura ibyapa biremereye 5083 bifite igipimo cyabazwe cyurukuta rwuburebure bwa diametre ( t / D ≥ 0.15 ), impagarike yo guhonyora hamwe na axial ihagaze neza munsi yimbaraga zumusemburo wumusemburo, birinda gukomera cyangwa gusenyuka.

Q2: Kuki uhitamo aluminium 5083 hejuru yicyiciro cya 5 Titanium yo kubamo amazu yo munsi yinyanja?

Igisubizo: Mugihe titanium ikomeye, irikubye inshuro 8 kugeza 12 kandi ihenze cyane kumashini. 5083 aluminiyumu itanga imbaraga zo gukomeretsa zisabwa ku giciro gito, igabanya igihe cyo gusya CNC kuri bibiri bya gatatu, kandi ikabika ibiro mumazi - bikagabanya cyane cyane ibikenerwa bya buyancy bihenze.

Q3: Nigute coating ikemura umuvuduko ukabije wa MPa 60 utarinze?

Igisubizo: Igikoresho kinini-epoxy-polyurethane gitwikiriye gishyirwa hejuru yimikorere ya nano-ihinduranya hamwe na grit yamashanyarazi. Ibi bigera ku guhuza no gukanika imashini ibuza molekile zamazi gutobora igifuniko munsi yumuvuduko ukabije wa hydrostatike.

Q4: Ese amasahani aremereye 5083 azarimbuka mugihe cyo gusya cyane CNC gusya ibikoresho?

Igisubizo: Oya, mugihe batumijwe muburyo bwiza bwo kugabanya imbaraga zo mu nyanja ( H116  cyangwa H321 ). Aya masahani agenzurwa arambuye ku ruganda ruzunguruka kugira ngo agabanye imihangayiko yo mu mutima, yihanganira kwihanganira ibipimo byimbitse byimbitse hamwe na O-impeta ya kashe.

Q5: Nigute ushobora kwirinda ruswa ya galvanike hagati yinzu ya aluminiyumu hamwe nicyuma kidafite ingese?

Igisubizo: Mu mazi yinyanja, ibyuma bidafite ingese (nka 316L) uhuye na aluminiyumu ikora couple ya galvanic. Imyitozo myiza ikubiyemo gukoresha Delrin cyangwa Tefzel yogejwe yogejwe, gukaraba paste yo kurwanya marine, no kwemeza ko aluminiyumu ikingira ikagera no kuri konti.

Umwanzuro

Ibipimo biremereye 5083 byo mu nyanja byo mu nyanja bisize amasahani ya aluminiyumu bitanga ibikoresho bifatika, bikoresha amafaranga menshi, kandi byoroheje byubatswe bifite ubushobozi bwo guhangana na metero 6000 za hydrostatike ya hydrostatike.

Kugirango habeho intsinzi mumishinga yubushakashatsi bwimbitse:

Kugaragaza Ubushyuhe bwo mu nyanja bwemewe (5083-H116 cyangwa H321): Manda ASTM B928 kubahiriza kugirango ikureho ruswa ishobora kwangirika ku mbibi z’inyanja mu nyanja nini kandi ikonje.

Shimangira Ubunini bw'Urukuta Kubara (t / D ≥ 0.15): Koresha ingero ya silinderi ya Lamé igereranya hamwe nisesengura ryibintu bitagira ingano (FEA) kugirango urebe ko guhagarika umutima bikomeza kuba munsi ya 65% byimbaraga zemewe zemewe na 60 MPa.

Igenamigambi ryuzuye rya NDT Igenzura: Saba ibizamini bya ultrasonic kuri AMS-STD-2154 Icyiciro A ku bubiko bwa plaque hejuru ya mm 40 z'ubugari kugirango wizere ko zeru zidafite imbere cyangwa izishobora gukoreshwa nkibitera guhangayika.