Zigawo zamafakitale zogwira ntchito kwambiri sizimalora kunyengerera-makamaka ngati zikugwira ntchito pansi pa 300 bar hydraulic pressure, 600 ° C kutulutsa mpweya wotulutsa mpweya, kapena kuvala kosalekeza kosalekeza pantchito yamafuta. Ichi ndichifukwa chake mainjiniya ku Tier-1 pump OEMs ndi ma hydraulic system integrators akuchulukira kulambalala miyambo yachikhalidwe ndikutembenukira ku zitsulo ufa zitsulo fakitale mayankho-osati ngati kugwa, koma njira yokhayo yokhazikika yokhazikika, kusasinthika kwa microstructural, ndi kudalirika kwa magwiridwe antchito mu zigawo za cobalt-nickel monga AMS 5387 pump housings kapena T800 alloy nozzles.
Chifukwa Chake Metallurgy Powder Imapambana Kumene Machining Pawokha Amalephera
Taziwona mobwerezabwereza: kasitomala amatumiza chojambula cholemera cha GD&T cha pulagi ya cobalt alloy yokhala ndi kulolerana kwa 0.01 mm pamabowo asanu ndi limodzi akhungu-ndipo amayembekeza ± 0.005 mm kuwongolera makulidwe a khoma kudutsa 120 mm radius contour. CNC Machining kuchokera olimba billet? N'zotheka-koma mitengo yowonongeka imakwera pamwamba pa 40% chifukwa cha kuuma kwa ntchito, kusokoneza zida, ndi kufalitsa micro-crack mu AMS 5387. Kuyika ndalama? Zokolola zabwino, koma zoopsa za porosity zimayambitsa 100% kuyesa kwa akupanga-komabe palibe chitsimikizo cha kubalalitsidwa kwa carbide yunifolomu.
Ufa zitsulo milatho kuti kusiyana. Mwa kutentha kwa isostatically pressing (HIP) pre-alloyed Co-Ni-Cr-Mo powder, timatsekera pafupi ndi theoretical density * pamaso * makina omaliza. Chotsatira? Palibe voids mkati. Palibe kusagwirizana kwamayendedwe ambewu. Palibe kupotoza kwa kutentha panthawi ya chithandizo cha kutentha. Ndipo chofunikira kwambiri - palibe chifukwa chochotsera 70% yazinthu zopangira kuti mufikire mawonekedwe a ukonde. Wopanga pampu wina waku North America adadula nthawi yotsogolera ndi 36% ndipo mtengo wonsewo ndi 29% atasintha kuchoka pamakina opangira makina kupita ku HIP + nyumba za silinda zomaliza.
Mphamvu Zinayi Zosakambirana Zomwe Muyenera Kuzitsimikizira
A zoona zitsulo ufa zitsulo fakitale Simatanthauzidwa ndi kukhala ndi makina osindikizira-amayezedwa ndi momwe amalamulira molimba madera anayi omwe amadalirana:
- Yaiwisi traceability: Gulu lililonse la T800 kapena AMS 5387 ufa liyenera kunyamula ma certs a mphero-osati kungopanga, koma okosijeni (<150 ppm), kugawa kukula kwa tinthu (D50 = 15–25 µm), ndikudina kachulukidwe ka data. Timakana maere a ufa popanda magawo ovomerezeka a HIP omwe amalumikizidwa ndi nambala iliyonse ya kutentha.
- Kuwongolera kwa HIP process: Kupanikizika kokha sikutsimikizira kuchulukana. Kuzungulira kwathu kwa HIP kumagwira 1150 ° C pa 150 MPa kwa maola 3-kenako kumazizira pa ≤5 ° C / min pansi pa argon. Pang'onopang'ono ndi 10 ° C kapena 10 MPa, ndipo mungakhale pachiwopsezo chomangirira chosakwanira pamakina a tinthu.
- Post-HIP dimensional kukhulupirika: Zigawo za HIP zimachepa anisotropically-mpaka 0.18% axially, 0.09% radially. Mapulogalamu athu a CNC amalipiritsa pogwiritsa ntchito mamapu ocheperako opangidwa ndi laser, osati ma generic offsets. Ndimomwe timagwirira ± 0.008 mm pa ID ya piston pambuyo popera komaliza.
- Kutsimikizika kogwira ntchito kupitilira CMM: Muyezo wolumikizana bwino sutanthauza kanthu ngati gawolo likulephera kuyesa kophulika. Timatsimikizira nyumba ya valve yokakamiza pa 1.5 × kugwira ntchito kwa mphindi 60-ndi mapu enieni a nthawi yeniyeni pogwiritsa ntchito chithunzithunzi cha digito (DIC).
Pamene Hybrid Casting-Machining Imamenya Pure PM
Mbali zina zimanyoza njira za ufa. Winch center shaft roller imafunika wosanjikiza wakunja wa T800 wosavala - koma pachimake chake chimayenera kuyamwa zinthu zowopsa popanda kusweka. Apa, gawo lathu lachitsulo lopangidwa ndi mchenga limalowetsedwa ndi aloyi wonyengedwa wa cobalt pansi pa vacuum, kenako HIP-yopangidwa ngati gawo limodzi. Mphamvu ya chomangira imaposa 620 MPa-yotsimikiziridwa ndi magawo a SEM/EDS. Makasitomala omwe amayesa kubisala adalengeza kuti atayika pambuyo pa 4,200; mtundu wathu wosakanizidwa unadutsa mizungu 18,500 pakuyesa kutopa kwa gulu lachitatu.
Izi sizongoyerekeza. Ndizomwe zimatilola kuti tipereke ma geometri omwe sali wamba, monga maziko a pampu otopetsa okhala ndi mayendedwe ophatikizika ozizira - omwe angafune kukhazikitsidwa kosiyana kasanu pa zida wamba. Timawapanga mu ntchito ziwiri: movutikira HIP + kumaliza pa 5-axis mphero yokhala ndi zida zamoyo ndi B-axis yopendekera.
Zomwe Muyenera Kufuna Musanatulutse PO
Funsani wogulitsa wanu mafunso atatu awa-ndikuchokapo ngati mayankho alibe mwatsatanetsatane:
- "Ndiwonetseni zipika zitatu zomaliza za HIP za AMS 5387 - kuwonetsa kuchuluka kwa kutentha, nthawi yokhalamo, ndi malipoti a post-cycle metallography."
- "Kodi mumatsimikizira bwanji kusakhalapo kwa micro-porosity pansi pa 25 µm? Kodi ndi X-ray CT, ultrasonic phase analysis, kapena gawo lowononga?"
- "Ngati chojambula changa chikuwonetsa kuchuluka kwa kukakamiza kwa ASME B16.34 Class 900, kodi ndondomeko yanu yoyeserera yotayikira ndi yotani - ndipo mbiri yanu yopambana ndi yotani?"
Ku QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., zipikazo zimawerengedwa mkati mwa maola awiri. Mayeso athu otayira amagwiritsa ntchito helium mass spectrometry pa 1 × mapangidwe apangidwe kwa masekondi a 120-kudutsa: 99.87% pa magawo 14,200 otumizidwa kuyambira Q3 2022. Timagawana zolemba zonse zowunikira-osati mwachidule-ndi zotumiza zilizonse.
Kwa zigawo zofunika kwambiri, zitsulo za ufa sizikhudza kuchepetsa mtengo. Ndizokhudza kuchotsa mitundu yolephera musanalowe pamzere wanu. Ngati projekiti yanu yotsatira ikufuna AMS 5387, T800, kapena magawo ena olondola kwambiri a aloyi pomwe geometry, kukhulupirika, ndi kubwerezabwereza sikungakambirane - mufunika zambiri. zitsulo ufa zitsulo fakitale. Mufunika imodzi yomwe imagwira nambala iliyonse ya kutentha ngati chala, kuzungulira kulikonse kwa HIP ngati opaleshoni, ndi lipoti lililonse la CMM ngati chikalata chovomerezeka. Ndicho maziko. Chilichonse chocheperako chimayika pachiwopsezo nthawi yanu, zonena zanu za chitsimikizo, ndi mbiri yanu.
