Ukucwaninga Kwama-Welds Ahlanganisiwe We-NiCrMoV Properties Steel Properties Kanye ne-Microstructure

Irotor ingenye yezinto ezisemqoka zemishini emikhulu ye-turbine. Njengamanje, kunezindlela ezintathu zokukhiqiza ikakhulukazi: ukusetha, isigaba sonke nokushisela. Uma kuqhathaniswa nezindlela ezimbili ezedlule, i-rotor eshiselwe ine-design eguquguqukayo, isakhiwo esihlangene, isisindo esincane, ukuqina okuhle nokucindezela kokusebenza. Izinzuzo zokukhohlwa okuphansi, okuhlukanisiwe ngosayizi omncane, ukuqinisekiswa kwekhwalithi elula nomjikelezo wokukhiqiza omfushane kukhethwe ngabakhiqizi abaningi be-turbine emhlabeni. Kwama-rotors ahlanganisiwe aphezulu, aphakathi nendawo kanye naphansi, amabanga ahlukene wezinto angasetshenziselwa izingxenye ezahlukahlukene ukukhulisa izici zezinto zokwakha, ukufeza inhlanganisela ekahle, ukusindisa izinto ezibalulekile, nokuqhubeka nokunciphisa izindleko zokukhiqiza.

Ubuchwepheshe bensimbi obushisayo obusetshenziswayo buye busetshenziswa kancane kancane ekukhiqizeni ama-single-cylinder steam turbines, ama-turbines kagesi / ama-turbine womjikelezo ohlanganisiwe, kanye nama-rotors wokucindezela aphezulu / aphakathi kwama-turbine aphezulu kakhulu. Insimbi ye-NiCrMoV uhlobo lwensimbi enamandla aphansi ene-alloy ephezulu evame ukusetshenziswa kakhulu kuma-turbine amakhulu. Inamandla aphezulu nokusebenza okuhle komthelela wokushisa okuphansi. Ngokwezilinganiso ezahlukahlukene zezinto eziyisisekelo ezinjengeNi, Cr, Mo, V, ingahlanganiswa ngamazinga ahlukene wamandla, Isakhiwo nezakhiwo zensimbi.

Lolu hlobo lwento lunokuzwela okuphezulu ekubambeni, futhi kulula ukukhiqiza ubuntekenteke lapho busetshenziswa isikhathi eside ngo-350 ～ 500 ℃. Awukho umbiko wokucwaninga wokuthi ngabe ukuqina kwenzeka yini kuNiCrMoV rotors yensimbi engafani nenye ngemuva kokuguga. Kukhonjisiwe ezincwadini ukuthi ukuqina kokuguga kwensimbi ye-NiCrMoV ebangeni lama-250 ～ 400 ℃ kanye ne-carbides ethambile yacishe yagudla umngcele wokusanhlamvu nomngcele we-sub-okusanhlamvu ngesikhathi sokuguga, ukubola kwe-austenite egcinwe nokwehlukaniswa kwama-athomu aqinile. emngceleni wokuqala we-austenite wokusanhlamvu ohlobene.

Kuleli phepha, ukuhlangana okuhlanganisiwe kwe-welding rotor simulation part eyakhiwe ngokungafani ne-NiCrMoV steel kukhethwa kube neminyaka engama-3500h ngaphansi kwendawo yesevisi eyenziwe, bese amasampuli ethathwa endaweni ngayinye engxenyeni yokulingisa yokuhlolwa komthelela, nokwakheka kwamakhemikhali kanye ne-metallography yesampula ethintekayo kuyenziwa. I-Microscopy, ukuskena i-electron microscopy, ukusabalalisa emuva kwe-electron nokunye ukuhlola kokuhlola ukutadisha ubudlelwano bangaphakathi phakathi kobunzima kanye nokwakheka okuncane kwejoyini elishiselwe ngemuva kokuguga. Imiphumela yocwaningo inikela ngesisekelo sokuhlaziywa komonakalo wezinto ezibonakalayo nokutholwa kwama-rotor ashiselwe nge-steam turbine ekusebenzeni, futhi iphakamise amasu wokulawula.

Izinto zokuhlola zingama-22Cr2NiMoWV ne-30Cr2Ni4MoV steel forgings. Zombili lezi zinto ziyinsimbi ene-ultra-pure, eyehlisa okuqukethwe ukungcola okufana ne-S, P, As, Sn, Mn, njll. Izici zemishini zikhonjiswa kuThebula 1.

Izingxenye ezingafani zensimbi zensimbi zokulingisa zalezi zinhlobo ezimbili zensimbi zakhiwa yi-groove encane, i-argon arc welding backing kanye negebe elincane elijulile lokufaka i-arc welding, i-multi-ungqimba kanye ne-multi-pass welding, futhi izinto zokushisela insimbi ekhethekile ye-welding equkethe 2% Ni. Ngemuva kokushisela, izingxenye ezenziwe zenziwa ukwelashwa kokushisa okunciphisa ukucindezela kanye nokwelashwa kokuguga okungu-350 ℃ × 1000h. Ngemuva kwalokho, usike ngomshini izingxenye ezenziwe esifundazweni esigugile nasezweni elingagugi ukulungiselela amasampula wokuhlolwa komthelela, ukuhlaziywa kwe-metallographic, ukuskena ukuhlaziywa kwe-electron microscopy, kanye nokuhlaziywa kwe-EBSD.

I-austenite egcinwe ensimbi ye-weld yensimbi ye-NiCrMoV engafaniyo ibola ngokubola okungashisi ngesikhathi sokuguga, kanti ama-carbides ancipha phakathi kwamabha we-martensite eduze kwe-lath. Ukubhekwa nokuhlaziywa kwesakhiwo esincane yi-metallography kanye nokuskena imicroscope ye-electron kukhombisa ukuthi amalunga angafani nensimbi yeNiCrMoV ayalashwa ngokuguga, kanti ama-carbides ancipha emngceleni wezinhlamvu nomngcele ongaphansi kokusanhlamvu, okwenza buthakathaka umngcele wokusanhlamvu.

Ngemuva kokuthi insimbi ye-NiCrMoV yensimbi engafani nenye isikhulile, ukubola kwe-austenite egcinwe, ukuhlukaniswa kwemingcele ye-N okusanhlamvu nemvula yama-carbides emingceleni yezinhlamvu ndawonye kunomthelela ekwehleni kobulukhuni bayo.

Sicela ugcine umthombo nekheli lale ndatshana ukuze uphinde uprintwe: Ukucwaninga Kwama-Welds Ahlanganisiwe We-NiCrMoV Properties Steel Properties Kanye ne-Microstructure

UMinghe Inkampani yeDie Casting anikezelwe ekukhiqizeni nasekuhlinzekeni ikhwalithi nokusebenza okuphezulu Izingxenye Zokulingisa (izingxenye zensimbi zensimbi zokufa zisebenza ikakhulukazi zibandakanya I-Thin-Wall Die Casting,I-Hot Chamber Die Casting,Cold Chamber die Casting), Insizakalo Eyindilinga (Insiza Yokulingisa,ICnc Machining,Ukwenza Okubandayo, Surface Treatment) .Noma ikuphi ukusakazwa kwe-Aluminium die, i-magnesium noma i-Zamak / zinc die casting nezinye izidingo zokuphosa zamukelekile ukuxhumana nathi.

Ngaphansi kokulawulwa kwe-ISO9001 ne-TS 16949, Zonke izinqubo zenziwa ngamakhulu emishini esezingeni eliphakeme yokufa, imishini ye-5-axis, nezinye izikhungo, ezisukela kuma-blasters kuya kumishini yokuwasha ye-Ultra Sonic.Minghe akagcinanga ngemishini esezingeni eliphezulu kepha futhi unobuchwepheshe iqembu lonjiniyela abanolwazi, ama-opharetha nabahloli ukwenza ukwakheka kwekhasimende kugcwaliseke.

Umenzi wenkontileka yokufa kwabasikiwe. Amandla afaka izingxenye ezibandayo ze-aluminium die casting ezivela ku-0.15 lbs. kuye ku-6 lbs., Ukusetha ushintsho olusheshayo, nemishini. Izinsizakalo ezingezwe ngenani zifaka phakathi ukupholisha, ukudlidliza, ukuphazamisa, ukuqhumisa ngokudubula, ukupenda, ukuhlobisa, ukumboza, ukuhlangana nokusetshenziswa kwamathuluzi. Izinto zokusebenza ezisetshenzisiwe zifaka ama-alloys afana no-360, 380, 383, no-413.

I-Zinc die casting design usizo / izinsizakalo zobunjiniyela ezihambisanayo. Umenzi wangokwezifiso we-precision zinc die castings. Ukusakazwa okuncane, ukukhishwa kwengcindezi ephezulu, ukusikeka kwesikhunta esiningi, ukujikijelwa kwesikhunta okuvamile, ukufefa kwamayunithi kanye nokuzimela okuzimele kanye nokuvalwa okuvaliwe komgodi kungenziwa. Ama-Castings angenziwa ngobude nobubanzi obufinyelela ku-24 in. Ku +/- 0.0005 in. Ukubekezelelana.  

I-ISO 9001: Umkhiqizi oqinisekisiwe ka-2015 we-die cast magnesium, Amandla afaka i-high-pressure magnesium die casting up to 200 ton chamber hot & 3000 ton cold chamber, designing designing, polishing, molding, machining, powder & liquid paint, QA full with CMM amakhono , inhlangano, ukupakisha nokulethwa.

Kuqinisekiswe i-ITAF16949. Insiza Eyengeziwe Yokulingisa Faka ukukhipha utshalomali,ukuphonsa kwesihlabathi,Ukuphonswa kwamandla, Lost Foam Ekubunjweni,I-Centrifugal Casting,Ukuphoswa Kokuqothula,Permanent Isikhunta Ukulingisa, Amakhono afaka i-EDI, usizo lobunjiniyela, ukumodeliswa okuqinile nokucutshungulwa kwesibili.

Izimboni Zokulingisa Izingxenye Zamacala Ezifundo Zezimoto: Izimoto, Amabhayisikili, Izindiza, Izinsimbi Zomculo, I-Watercraft, Amadivayisi we-Optical, Izinzwa, Amamodeli, Amadivayisi we-elekthronikhi, Ukuvaleka, Amawashi, Imishini, Izinjini, Ifenisha, Ubucwebe, AmaJig, Telecom, Ukukhanyisa, Amadivayisi Wezokwelapha, amadivayisi wezithombe, Amarobhothi, okubaziwe, okokusebenza komsindo, okwezemidlalo, i-Tooling, Amathoyizi nokuningi. 

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By Umkhiqizi weMinghe Die Casting | Izigaba: Izindatshana Eziwusizo |Material Omaka: I-Aluminium Casting, Zinc Ukulingisa, Ukulingiswa kweMagnesium, I-Titanium Casting, Insimbi Engagqwali, Brass Ekubunjweni,Ukulingiswa kweBronze,Isakaza ividiyo,Umlando wenkampani,I-Aluminium Die Casting | Amazwana Off