Likarolo tse sebetsang hantle tsa indasteri ha li mamelle ho sekisetsa-haholo-holo ha li sebetsa tlas'a khatello ea hydraulic ea 300 bar, ho pepeseha ha khase ea 600 ° C, kapa ho apara ka mokhoa o tsoelang pele oa abrasive tšebeletsong ea oli. Ke ka lebaka leo lienjineri tsa li-OEM tsa pompo tsa Tier-1 le bahokahanyi ba tsamaiso ea hydraulic ba ntseng ba feta ho qhekella moetlo le ho fetohela ho feme ea tšepe ea tšepe ea tšepe litharollo-eseng e le ho khutlela morao, empa e le eona feela tsela e sebetsang ea ho tsitsa ha mahlakore, ho lumellana ha microstructural, le ts'episo ea ts'ebetso likarolong tsa cobalt-nickel tse kang AMS 5387 pump housings kapa T800 alloy nozzles.
Hobaneng ha Powder Metallurgy e Hlōla Moo Machining a le Mong a hlolehang
Re e bone khafetsa: moreki o romela setšoantšo sa GD&T-rich bakeng sa plug ea cobalt alloy e nang le mamello ea 0.01 mm ka likoti tse tšeletseng tse foufetseng-'me o lebeletse ± 0.005 mm taolo ea lebota ho pholletsa le 120 mm radius contour. CNC machining ho tloha billet tiileng? Hoa khoneha-empa litefiso tsa lichelete li nyolohela ka holimo ho 40% ka lebaka la ho thatafala ha mosebetsi, ho kheloha ha lisebelisoa, le ho phatlalatsoa ha micro-crack ho AMS 5387. Investment casting? Kotulo e ntle, empa likotsi tsa porosity li baka 100% tlhahlobo ea ultrasonic-'me ho ntse ho se na tiiso ea ho hasana ha carbide e tšoanang.
Marokho a phofo a metallurgy hore lekhalo. Ka ho hatella ka isostatically (HIP) pele ho alloyed Co-Ni-Cr-Mo phofo, re notlela haufi-ufi-theoretical density * pele * machining ea ho qetela. Sephetho? Ha ho likheo tsa ka hare. Ha ho ho se lumellane ho phallang ha lijo-thollo. Ha ho na ho ferekanngoa ha mocheso nakong ea phekolo ea mocheso. Habohlokoa le ho feta - ha ho na tlhoko ea ho tlosa 70% ea lisebelisoa tse tala ho fihlela sebopeho sa marang-rang. Moetsi e mong oa pompo oa Amerika Leboea o ile a fokotsa nako ea ho etella pele ka 36% le litšenyehelo tse felletseng ka karolo e 'ngoe le e' ngoe ka 29% ka mor'a ho tloha ho tse entsoeng ka mochine ho ea ho HIP + li-cylinder housings tse entsoeng ka mochine.
Tse 'ne Tse sa Buisanoeng Tseo U Lokelang ho li netefatsa
A 'nete feme ea tšepe ea tšepe ea tšepe ha e hlalosoe ka ho ba le mochine oa khatiso - o lekanngoa ka hore na o laola ka thata hakae libaka tse 'nè tse itšetlehileng ka bobeli:
- Traceability ea lintho tse tala: Sehlopha se seng le se seng sa T800 kapa AMS 5387 phofo se tlameha ho jara li-certs tse feletseng tsa leloala-eseng feela ho hlophisoa, empa ho na le oksijene (<150 ppm), kabo ea boholo ba karoloana (D50 = 15–25 µm), le data ea tepi ea tekano. Re hana lotho ea phofo ntle le litekanyetso tse tiisitsoeng tsa HIP tse kentsoeng khahlanong le nomoro e 'ngoe le e 'ngoe ea mocheso.
- Taeo ea ts'ebetso ea HIP: Khatello feela ha e fane ka tiiso ea ho teteana. Potoloho ea rona ea HIP e tšoara 1150 ° C ho 150 MPa bakeng sa lihora tsa 3-ebe e pholile ho ≤5 ° C / min tlas'a argon. E fapoha ka 10°C kapa 10 MPa, 'me u ipeha kotsing ea ho se kopane ho sa feleng ha ho kopana le likaroloana.
- Botšepehi ba post-HIP: Likarolo tsa HIP li fokotseha ka anisotropically-ho fihlela ho 0.18% axially, 0.09% radially. Lenaneo la rona la CNC le lefella ho sebelisa limmapa tse honyehang ka laser-scanned, eseng liforomo tse akaretsang. Ke kamoo re tšoarang ± 0.008 mm ka piston bore ID ka mor'a ho sila ho qetela.
- Netefatso e sebetsang ho feta CMM: Tekanyo e phethahetseng ea khokahano ha e bolele letho haeba karolo e hloleha ho etsa liteko tse phatlohileng. Re netefatsa ntlo e 'ngoe le e' ngoe ea li-valve tsa khatello ho 1.5 × khatello ea ho sebetsa bakeng sa metsotso ea 60-ka 'mapa oa nako ea sebele oa khatello ka digital image correlation (DIC).
Ha Hybrid Casting-Machining Beat Pure PM
Likarolo tse ling li hanana le litsela tse hloekileng tsa phofo. Winch center shaft rolara e hloka lesela le ka ntle la T800 le sa sebetseng - empa motheo oa eona o tlameha ho monya meroalo e makatsang ntle le ho robeha ha brittle. Mona, karolo ea rona ea tšepe e entsoeng ka lehlabathe e kenngoa ka motsoako oa cobalt e qhibilihisitsoeng tlas'a vacuum, ebe HIP e tšoaroa e le yuniti e le 'ngoe. Matla a bond a feta 620 MPa-a tiisitsoe ke likarolo tse fapaneng tsa SEM/EDS. Bareki ba ileng ba leka ho koaheloa ba tlalehile delamination ka mor'a lipotoloho tse 4,200; mofuta oa rona oa lebasetere o fetile lipotoloho tse 18,500 tlhahlobong ea mokhathala oa motho oa boraro.
Sena ha se khopolo-taba. Ke eona e re lumellang ho fana ka li-geometri tse sa tloaelehang - joalo ka metheo ea pompo e boreleli e nang le likanale tse kopaneng tse pholileng - tse ka hlokang litlhophiso tse hlano tse arohaneng tsa lisebelisoa tse tloaelehileng. Re li kenya ka ts'ebetso e 'meli: HIP e thata + e qeta ka leloala la 5-axis le nang le lisebelisoa tse phelang le B-axis tilt.
Seo U Lokelang ho se Hloka Pele U Lokolla PO
Botsa morekisi oa hau lipotso tsena tse tharo-'me u tsamaee haeba likarabo li se na lintlha tse tobileng:
- "Mpontše lintlha tse tharo tsa ho qetela tsa HIP bakeng sa AMS 5387-e totobatsang sekhahla sa mocheso, nako ea ho lula le litlaleho tsa post-cycle metallography."
- "U ka netefatsa joang ho ba sieo ha micro-porosity ka tlase ho 25 µm? Na ke X-ray CT, tlhahlobo ea ultrasonic phase, kapa likarolo tse senyang?"
- "Haeba setšoantšo sa ka se totobatsa tekanyo ea khatello ea ASME B16.34 ea Sehlopha sa 900, protocol ea hau ea tlhahlobo ea ho lutla e tlalehiloeng ke efe-'me ke lintlha life tsa nalane ea hau ea ho pasa?"
Ho QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., lintlha tseo li ka hlahlojoa nakong ea lihora tse peli. Tlhahlobo ea rona ea ho lutla e sebelisa helium mass spectrometry ka 1 × khatello ea moralo bakeng sa metsotsoana ea 120-sekhahla sa ho feta: 99.87% ho feta likarolo tsa 14,200 tse rometsoeng ho tloha Q3 2022. Re arolelana lintlha tse feletseng tsa tlhahlobo-eseng kakaretso-ka thepa e 'ngoe le e 'ngoe.
Bakeng sa likarolo tsa bohlokoa tsa mosebetsi, metallurgy ea phofo ha e bue ka ho fokotsa litšenyehelo. Ke mabapi le ho tlosa mekhoa ea ho hloleha pele ba kena moleng oa kopano ea hau. Haeba projeke ea hau e latelang e hloka AMS 5387, T800, kapa likarolo tse ling tse nepahetseng tsa alloy moo jiometry, botšepehi le ho pheta-pheta ho sa buisanoeng - u hloka ho feta feme ea tšepe ea tšepe ea tšepe. U hloka e tšoarang nomoro e 'ngoe le e' ngoe ea mocheso joaloka monoana oa menoana, potoloho e 'ngoe le e' ngoe ea HIP joaloka mokhoa oa ho buuoa, le tlaleho e 'ngoe le e' ngoe ea CMM joaloka tokomane ea molao. Ke eona motheo. Ntho efe kapa efe e fokolang e beha nako ea hau kotsing, likopo tsa waranti ea hau le botumo ba hau.
