Vavu ya hydraulic ikalephera pansi pa kukakamizidwa kwa bar 350, nthawi zambiri sichikhala cholakwika - ndi Mpira wa stellite valve ndi mpando kuvala mosagwirizana, kusweka pang'ono, kapena kutaya umphumphu wazitsulo pambuyo pa mizere 8,000 yokha. Taziwonapo pamapampu am'mphepete mwa nyanja, mavavu a pistoni akumigodi, ndi makina opangira mankhwala othamanga kwambiri: mipando yokhazikika yazitsulo zosapanga dzimbiri imakokoloka mwachangu. Cobalt-based Stellite alloys satero. Koma si onse Mpira wa stellite valve ndi fakitale ya mipando imapereka kuuma kosasinthasintha, kugawa kwa carbide, kapena kubwerezabwereza kwamitundumitundu - makamaka pamene geometry imaphatikizapo zomata zomata, zibowo za eccentric, kapena zolumikizira ziwiri.
Chifukwa Chimene Stellite Sichingokhala "Chitsulo Cholimba" -Ndi Chosankha Chadongosolo
Stellite si chinthu chimodzi. Ndi banja - 6, 12, 21, 25 - yokhala ndi cobalt ngati msana (40-65%), chromium ya kukana makutidwe ndi okosijeni, tungsten pakuuma kotentha, ndi kaboni kuti apange M wosamva kuvala.7C3 ndi M23C6 carbides. AMS 5387 (Stellite 6) igunda 38–44 HRC ngati-cast koma imafuna chithandizo cha kutentha kuti chipewe kupangika kwa gawo la brittle sigma. T800 alloy imawonjezera faifi tambala pa kutentha kwamphamvu kukana-kofunikira mu mavavu othandizira kuchira mafuta. Komabe kuuma kokha kumasocheretsa. Mpando wa Stellite wokhala ndi mabala a carbide osabalalika ophwanyidwa podzaza. Mpira wokhala ndi porosity yotsalira umatuluka pa 120 ° C. Ichi ndichifukwa chake magwiridwe antchito amadalira mphamvu zitatu zolumikizidwa: luso la aloyi, kuwongolera njira, ndi kuwongolera kwa metrology - osati kungopeza zinthu zopangira.
Zomwe Zimalekanitsa Mpira Wodalirika wa Stellite Valve ndi Seat Factory ndi Zina
Tasanthula ogulitsa opitilira 30 omwe akufuna ukadaulo wa Stellite. Ambiri amalephera pa imodzi mwa mfundo zitatu:
- Mipata yofufuza zinthu: Mndandanda wa ziphaso za "AMS 5387" koma sankhani malipoti okhudzana ndi gulu, kukula kwambewu, kapena zotsatira za mayeso a intergranular corrosion.
- Kuwonongeka kopangidwa ndi Machining: Kugaya mwaukali popanda kuzizira kwa cryogenic kumapanga 20-μm woyera wosanjikiza-wong'ambika pang'ono, wosasunthika, komanso wokonda kuphulika pansi pa katundu wozungulira.
- Kusindikiza kwa geometry drift: Mapulogalamu a CNC amakhala opanda kanthu. Zogulitsa zenizeni zimakhala ndi makulidwe a ± 0.3 mm. Popanda chipukuta misozi chosinthira, chosindikizira chomaliza chimapatuka> 0.05 mm kuchoka pa ngodya yadzina—yokwanira kudula moyo wa chisindikizo ndi 60%.
Ku QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Timatseka mipata iyi molunjika. Malo athu ogwirizana ndi ISO amayang'anira tcheni chonse: zingwe zosungunuka za cobalt zosungunuka → kuyika ndalama moyenera → makina ochepetsa kupsinjika → chithandizo cha kutentha kwa carbide → kumaliza kozungulira kozungulira → kuyang'ana kwa bandi yotsimikizika ya CMM. Mpira uliwonse wa Stellite valve umanyamula chizindikiritso chapadera cholumikizidwa ndi chipika chake chosungunuka, lipoti la X-ray, ndi mapu akukhaula pamwamba. Palibe gulu lomwe limasiya popanda kutsimikizira kuuma kwa Rockwell C kumadera atatu - ndipo palibe sitima zapamadzi zopanda kuyesa kwa helium pa 1.5 × kugwira ntchito.
Zochitika Zenizeni Zapadziko Lonse: Kumene Kulondola Kumakumana ndi Ntchito
Makasitomala m'modzi waku North Sea adalowa m'malo mwa mpando wa mpikisano wa Stellite 21 mu mpope wamatope wobwereza pambuyo pa maola 4,200 akugwira ntchito. Cavitation pitting idaphwanya gawo la subsurface. Anasinthira kumpando wathu wa AMS 5387 - geometry yemweyo, nyumba zomwezo - koma ndi malo ocheperako a carbide (oyesedwa kudzera pa SEM), mpweya wocheperako (<120 ppm), ndi post-machining nitride diffusion wosanjikiza. Zotsatira: Maola a 14,700 asanakonzekere kukonza. Osati chifukwa zinali "zovuta," koma chifukwa microstructure anakana onse abrasive slurry particles * ndi * chosakhalitsa nthunzi kugwa.
Mlandu winanso: Chomera chamankhwala chakumwera chakum'mawa kwa Asia chimafunikira mipira yosakhala yokhazikika ya T800 ya valve ya metering ya diaphragm yogwira 98% sulfuric acid pa 85 ° C. Standard Stellite 6 inachita dzimbiri pa tsinde mawonekedwe. Tinapanganso mpirawo ndi kapu ya T800 yolumikizana ndi diffusion pamwamba pa 17-4PH pachimake-yopangidwa mu khwekhwe limodzi kuti tichotse galvanic joints. Gawolo linadutsa kuyesa kwa kumiza kwa ASTM G28A kwa maola 1,000 ndikuchepetsa thupi. Izi sizinali zapashelufu. Inali geometry yoyendetsedwa ndi zitsulo.
Kusankha Mpira Wanu wa Stellite Valve ndi Seat Factory - Funsani Mafunso Awa
Musanasaine NDA, funsani wogulitsa wanu:
- Kodi mungagawane lipoti laposachedwa la AMS 5387-kuwonetsa milingo yeniyeni ya W, C, ndi Si motsutsana ndi malire?
- Kodi mumayesa kagawo kakang'ono ka carbide (kudzera kusanthula zithunzi) pagawo lililonse-kapena kuuma kokha?
- Kodi mumalipira bwanji pakuponyera kutsika mu pulogalamu yanu ya CNC? Kodi mumagwiritsa ntchito data ya CT-scan kuti musinthe zida?
- Kodi makulidwe anu ovomerezeka amtundu wanji (Ra) pagulu losindikiza - ndipo mumatsimikizira bwanji, osati cholembera?
- Kodi mungapereke kutsatiridwa kwathunthu mpaka nambala ya ma elekitirodi omwe amagwiritsidwa ntchito mu vacuum arc remelting?
Ngati mayankho ali osamveka bwino, ochedwa, kapena amalozera zofananira m'malo mwazojambula zanu za GD&T - chokanipo. Zida za stellite sizinthu. Ndiwo mawonekedwe ovuta kwambiri pomwe cholakwika cha 0.01 mm chimawononga nthawi, osati madola.
Kwa mainjiniya omwe amatsimikizira kusindikiza kochita bwino kwambiri m'malo ovuta, ma Mpira wa stellite valve ndi fakitale ya mipando zomwe mumasankha ziyenera kuchitira zitsulo, kukonza makina, ndi metrology ngati njira zosagwirizana - osati masitepe otsatizana. QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. amamanga kuphatikiza uku mumayendedwe ake tsiku ndi tsiku. Cholinga chake chimakhalabe chochepa: kuthetsa kuvala, dzimbiri, ndi kulephereka kwa kutopa pakuwongolera madzimadzi - kuyambira ndi zomwe zimachitika pamene zitsulo zimakumana ndi zitsulo, kuzungulira pambuyo pa kuzungulira, kupanikizika pambuyo pa kukakamizidwa. Nthawi yotsatira valavu ikalephera msanga, yang'anani modutsa chizindikirocho. Onani kugawa kwa carbide kwa mpando. Ndiko kumene kulimba kwenikweni kumayambira.
