Ha mekhoa ea ho tiisa e sebetsa tlas'a khatello e feteletseng, mocheso o phahameng, kapa ho pepesehela lik'hemik'hale tse matla, li-elastomer tse tloaelehileng le litšepe tse sa hloekang li hlōleha kapele. Baenjineri ba li-hydraulic, oli & gase, le lipompo tsa mosebetsi o boima li ntse li fetoha Haynes 25 fektheri ea tiiso ea thepa balekane - eseng bakeng sa li-gaskets tse kantle ho sethala, empa bakeng sa litiiso tse bohlokoa haholo, tse ikamahanyang le maemo tse bolokang bots'epehi moo ba bang ba qhekellang, ba oxidize kapa ba qhekellang.
Re fane ka lisebelisoa tsa tiiso tsa Haynes 25 (UNS R30025) ho tloha ka 2018-pele bakeng sa retrofit ea subsea valve ea Amerika Leboea, hamorao bakeng sa tsamaiso ea li-winch tsa likoloi tsa Europe tse sebetsang ka 24/7 maemong a lehoatata. Seo re ithutileng sona e ne e se khopolo-taba: Haynes 25 ha se feela "e hanang ho bola." Motheo oa eona oa cobalt-nickel-chromium-molybdenum oa fana ka nako e le nngwe ho hanyetsa sulfidation, carburization, le mokhathala oa mocheso-ha u ntse u boloka matla a lihlahisoa ka holimo ho 690 MPa ho 700 ° C. Ke ka lebaka leo e nkang sebaka sa Inconel 625 kapa Waspaloy ka matlong a matla a tiiso moo ho palama libaesekele tse futhumetseng ho fetang lipotoloho tse 300 ka ho fetoha.
Empa li-specs tsa thepa e tala li bolela hanyane ntle le ts'ebetso e laoloang. Haynes 25 e sebetsa ka thata ka matla nakong ea machining. Sekhao se le seng se sitisitsoeng se ka etsa hore ho be le micro-cracking karolong e ka tlas'a lefatše. Re bone sena ka tatellano ea plug ea cobalt alloy e lumellanang le AMS 5387-moo ho kheloha holimo ho 0.8 µm Ra ho bakileng ho lutla pele ho nako mochining oa teko ea pompo ea piston e phahameng haholo. Ho lokisa? Eseng mamello e matla. E ne e fetoha ho tloha ho mokhoa o tloaelehileng oa ho fetoha ho ea ho RPM e tlaase, e tsitsitseng haholo ea CNC e nang le cryogenic nitrogen cooling-le ho netefatsa karolo e 'ngoe le e' ngoe ka metallography ea cross-sectional. Eo ke phapang lipakeng tsa ho qotsa letlapa le itseng le ho fana ka ts'epo ea ts'ebetso.
- Mokhoa oa ho latella lintho o qala pele o etsoa: Billet e 'ngoe le e 'ngoe ea Haynes 25 e na le litlaleho tse netefalitsoeng tsa mocheso ka ASTM B572, ho kenyeletsoa boholo ba lijo-thollo (ASTM E112), tlhahlobo ea kutu ea intergranular (ASTM A262 Practice A), le netefatso ea spark emission spectroscopy.
- Machining ha e khonehe: Re sebelisa mechini ea 5-axis DMG MORI e ts'oereng lithulusi tse thata, ho tlotsa ka likhoka, le ho thothomela ha nako ea nnete - ha ho na matšoao a moqoqo, ha ho na likarolo tsa recast.
- Phekolo ea mocheso e tiisitsoe ts'ebetsong: Tharollo annealing ka 1175 ° C ± 10 ° C, e lateloa ke ho tima metsi ka potlako, e etsoa ka tlung tlas'a libōpi tse amohelehang tsa NADCAP-ha ho mohla li kileng tsa fanoa ka ntle.
- Seal geometry e hlalosa ts'ebetso: Bakeng sa litiiso tsa sefahleho, rona tšitiso ea mochini e lekana ± 2.5 µm; bakeng sa litiiso tsa molomo oa radial, re laola mamello ea bophara ba mobu ho ± 0.02 mm ka bophara ba 300 mm.
Ba bang ba nahana hore litiiso tsa Haynes 25 ke "liphetolelo tse turang tsa Inconel 718." Ha ba joalo. Inconel 718 e ipabola ka matla a ho tsitsa-empa e hloleha haholo ho fokotsa tikoloho ea sebabole e tloaelehileng ho ntšoa ha khase e bolila. Likahare tsa chromium tsa Haynes 25 (20-22%) le molybdenum (8-10%) li etsa lera le tsitsitseng, le iphelisang la oxide le hanyetsanang le pitting esita le ka likhahla tsa H₂S tse fetang 100,000 ppm. Re netefalitse sena sebakeng sa marang-rang le moreki oa Asia Boroa-bochabela: likopano tsa bona tsa pele tsa Inconel 625 tsa tiiso li nkile lihora tse 4,200 tsa ts'ebetso pele li fumanoa. Likarolo tse lekanang le tsa Haynes 25 li fetile lihora tse 12,800 - ka ho hoholeha ho lekanngoang ka mokhoa oa CMM oa ho hlahloba bocha kamora ho khutla ha lebala.
Boemo boo ba ho itšepa bo tsoa ho kopantseng e otlolohileng-eseng likopo tsa ho bapatsa. Setsi sa rona sa Qingdao se hlahisa, mechini, li-heaters, le ho hlahloba karolo e 'ngoe le e 'ngoe ea tiiso ea Haynes 25 tlas'a marulelo a le mong a ISO 9001: 2015 le IATF 16949. Ha ho li-handoffs. Ha ho na ho se lumellane ha lihlopha. Ha moreki a romella litšoantšo tse boima tsa GD&T bakeng sa groove e sa tloaelehang ea hydraulic cylinder end-cap seal groove, baenjiniere ba rona ha ba hlahlobe mamello feela. Li etsisa ho se lumellane ha katoloso ea mocheso pakeng tsa ho kenya Haynes 25 le matlo a tšepe ea motsoali-ebe a lokisa tšitiso e loketseng. Ke ka tsela eo re thibelang ho cheselletsa serame nakong ea kopano mme re qoba ho phatloha ha khatello ea maikutlo nakong ea ho qala ho qala.
Litšenyehelo e ntse e le taba ea sebele—’me ho loketse joalo. Haynes 25 thepa e tala e matha 3.2 × theko ea 316 e se nang letheba. Empa litšenyehelo tsa potoloho ea bophelo li bua pale e fapaneng. Pompo e le 'ngoe ea Europe OEM e balile litšenyehelo tse felletseng tsa botho ka lilemo tse hlano: $18,400 ka tiiso e behiloeng bakeng sa li-alloys tse tloaelehileng (ho kenyeletsoa nako ea ho theoha, mosebetsi, le ho nchafatsa), khahlano le $29,700 bakeng sa Haynes 25. ROI ea bona? E fihletsoe ka likhoeli tsa 14-e tsamaisoa ke 92% ea ho koala ho sa reroang ho fokolang le likopo tsa tiisetso ea zero tse amanang le ho hlōleha ha tiiso. Lipalo tseo li sebetsa feela ha hao Haynes 25 fektheri ea tiiso ea thepa e nka metallurgy e le boenjiniere—eseng ho reka thepa.
Ha re sheba pele, tlhokeho e ntse e fetoha ho tloha ho litiiso tse tsitsitseng tsa flange ho ea likopanong tse nyalisitsoeng tse nang le lisebelisoa tse ngata-joaloka mehele ea Haynes 25 e tlameletsoeng ho lijari tsa tšepe tse koahetsoeng ka ceramic bakeng sa lipompo tsa centrifugal tsa lebelo le phahameng haholo. Re ntse re holisa R&D ea rona mabapi le li-parameter tsa diffusion bonding le ho nts'etsapele liprothokholo tsa "passivation" tse eketsang bophelo ba ts'ebeletso ho feta meeli ea hajoale ea ASME BPVC Karolo ea VIII. Hobane ho tiisa ha se taba ea ho emisa ho lutla. E mabapi le ho netefatsa tsoelo-pele-ha khatello e phahama, ho phahama ha mocheso, kapa k'hemistri e fetoha lehloeo. 'Me seo se qala ka ho tseba hantle se etsahalang ka Haynes 25 boemong ba micron, tlas'a mojaro, ka nako ea sebele.
