Uma uzwa 'i-Inconel 625 investigating', umcabango osheshayo uvame ukumayelana nokucaciswa kwayo—ukumelana nokugqwala, amandla aphezulu, zonke lezo zinto ezinhle. Kodwa indaba yangempela iqala lapho uzama ukwenza ingxenye eyinkimbinkimbi, enezindonga ezincane ngayo. Igebe phakathi kwedatha ye-alloy kanye ne-Foundry floor yilapho ukuqagela okuningi kwehluleka khona.
Uhlamvu Lwengxubevange kanye Nenkinga Yephethini Yengcina
I-Inconel 625 akuyona nje enye i-nickel-base superalloy oyiphonsa enqubeni. I-nickel ephezulu kanye nokuqukethwe kwe-chromium, naleyo molybdenum ne-niobium boost, kuyinikeza lokho kusebenza kwenganekwane, kodwa futhi nobuntu ekubunjweni. Isithiyo sokuqala asiyona ngisho insimbi; yingcina. Nge-aerospace eyinkimbinkimbi noma okokufakwa olwandle, iphethini idinga ukuba iphelele. Noma yiliphi iphutha elincane liyakhula ngemva kokwakhiwa kwegobolondo kanye nokushisa okukhulu. Ngibone amaphrojekthi amaningi kakhulu lapho isigaba sokuqala somjovo we-wax sashesha, okuholela ekusebenzeni kabusha okubizayo kamuva. Ukuzinza kwe-dimensional kwephethini ye-wax ka-625 kubaluleke kakhulu kune, ake sithi, ingxenye engu-316 engenasici.
Bese kulandela igobolondo. Awukwazi ukusebenzisa noma iyiphi i-ceramic. Ukungezwani kokunwebeka okushisayo phakathi kwejazi elijwayelekile elisuselwa ku-silica kanye ne-Inconel 625 phakathi nokukhipha iwaxisi nokushisa kwangaphambili kungabangela ukuqhekeka okuncane, iphedi lokuqalisa eliphelele lokungena kwensimbi. Sishintshele kusistimu ye-silica ehlanganisiwe noma isistimu ye-slurry eyinhloko esekelwe ku-zircon, ezwakala ilula, kodwa ukudayela nge-viscosity nesikhathi sokumisa somswakama wethu lapha kwakuyisivivinyo sezinyanga. Umsunguli wozakwethu, I-Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), ngeminyaka yabo engamashumi amathathu ukutshala imali nomsebenzi wokubumba igobolondo, kwenanela lokhu. Baveze ukuthi kuphothifoliyo yabo ye-alloys esekelwe ku-nickel, ukwakheka kwegobolondo le-625 kuvame ukudinga i-tweak uma kuqhathaniswa nokugijima kwabo okusekelwe ku-cobalt, ikakhulukazi izingxenye ezinezinguquko zesigaba ngokuzumayo.
Yilokhu kulungiswa okucashile okuhlukanisa ukulingisa okusebenzisekayo kokukodwa. Isigaba sangaphambi kokulingisa se-625 sidinga ukuhlonishwa kwemininingwane emngceleni wokugxila. Awugcini nje ukwakha isikhunta; ungunjiniyela isixhumi esibonakalayo esishisayo nesamakhemikhali.
I-The Pour: Lapho I-Theory Ihlangana Ne-Crucible
Ukuncibilika nokuthulula i-Inconel 625 yilapho irabha ihlangana khona nomgwaqo. Ukuthambekela kwe-alloy ukwakha izigaba zesibili uma izinga lokushisa lokuthela kanye nezinga lokupholisa kungavumelanisiwe kuwumgodi wakudala. Akukhona nje ukushaya u-°C. Kufanele ucabangele ukuthi insimbi igeleza kanjani kulezo zingxenye ezincane zegobolondo le-ceramic. Kupholile kakhulu, futhi uzibeka engcupheni yokungagijimi kahle noma ukuvala okubandayo; kushisa kakhulu, futhi ukhulisa ukusabela ngegobolondo, okungase kuthinte ubuqotho obungaphezulu.
Lokhu sikufunde kanzima ngephrojekthi yokuqala yeringi ye-turbine seal. I-geometry yayineqoqo eliminyene lamashaneli amancane okupholisa. Ukuthululwa kokuqala okumbalwa kubukeka kukuhle ngokubukeka, kodwa ukuhlolwa kwe-radiographic kwembula izindawo eziqhelile zokuncibilika kokuqala kanye ne-micro-porosity ezimpambanweni zesiteshi. Inkinga? Isisindo esishisayo se-ceramic ezungeze lezo zici eziyinkimbinkimbi sasishintsha iphrofayili yendawo yokuqinisa ngendlela amapharamitha ethu ajwayelekile angazange aziphendule ngayo. Ukulungiswa kwakuhilela hhayi nje ukulungisa ukushisa okuphezulu, kodwa futhi nokuklama kabusha isistimu yokufaka isango ukuze kuthuthukiswe ukuqina okuqondile okuya ngasezikhuphukeleni, isimiso esibalulekile esinganakwa emzamweni wokukhulisa isivuno.
I-Degassing ingesinye isici esithule. Ukuthatha i-hydrogen kungaba yiphupho elibi. Umkhuba oqinile wokukhipha umoya esithandweni sokungenisa umoya awunakuxoxiswana ngawo. Ngikhumbula iqoqo lapho izici zokusebenza, ikakhulukazi ukuqina komthelela, zazingaphansi ngokuguquguqukayo. Ngemuva kokukhipha isinqumo sokusebenza kwekhemistri, isisulu kuvele ukuthi kube ukuhluka okuncane komswakama emoyeni wesitolo okuthinta ukuncibilika. Kuyisikhumbuzo esizithobayo sokuthi ngezinto ezinjengalezi, imvelo ngokwayo iba yinqubo eguquguqukayo.
I-Post-Cast Reality: Ukwelashwa Kokushisa kanye ne-Machining Grind
I-As-cast Inconel 625 inesakhiwo se-dendritic esine-cored esidinga ukuhlanganiswa. Isixazululo esijwayelekile esicishe sibe ngu-1150°C esilandelwa ukucisha ngokushesha yincwadi yokufunda. Kodwa ingxenye 'yokucima ngokushesha' inobuqili ekulingiseni kwesigaba esisindayo. Uma ungalitholi kahle izinga lokucisha, ungagcina unezulu eliningi kakhulu le-carbide emingceleni yokusanhlamvu, okuba yisiqalo sokugqwala noma ukuqhekeka kwesevisi. Ibhalansi phakathi kokuzuza ukuqedwa okudingekayo kwezigaba zesibili nokugwema ukuhlanekezela noma ukucisha ukuqhekeka.
Bese kufika CNC imishini. Noma ubani ocabanga ukuthi ukwenza imishini engu-625 kufana nesitoko sebha yomshini usethubeni lokushaqeka. Isendlalelo sendawo ekhonjiwe, ngokuvamile enobulukhuni obuhluke kancane kanye nezimo ze-alpha-chromium ezingaba khona, zingadlala isiphithiphithi ngamaphethelo amathuluzi. Samukela indlela yokupholisa eqinile, enengcindezi ephezulu enezindlela eziqinile zamathuluzi, siphatha amaphasi okuqala acishe abe makhulu njengomsebenzi ohlukile. Izinkampani ezihlanganisa ukulingisa nokwenza imishini, njengokuthi QSY (ungabona indlela yabo ku https://www.tsingtaocnc.com), yiba nenzuzo lapha. Ochwepheshe babo bemishini bajwayelene nesimo esithize 'sokusakaza' sokuphuma kwe-Foundry yabo engu-625, okuvumela ukuphakelwa okuthuthukisiwe okwengeziwe kanye nesivinini kusukela lapho uya khona, ukunciphisa ukuguga kwamathuluzi kanye nokwenza ngcono ukuqedwa kokugcina kobuso obubucayi bokuvalwa.
Izindleko zengxenye elahliwe ngemva kwamahora okusebenza zinkulu kakhulu kuneyodwa elahliwe ngemva kokulingisa. Lesi sigaba se-post-cast ngokuvamile sinquma ukusebenza kwephrojekthi iyonke.
Iphuzu Lecala: Izindlu Zevalufa kanye Nempi Ewubukhulu
Isibonelo esiphathekayo kwakuyizindlu zamavalvu ezinkulu, eziyinkimbinkimbi zesevisi yasogwini. Ukuphrinta kubize i-ASME SB-366 Grade CW6MC (okulingana nokusakaza kwe-Inconel 625) ehambisana ngokugcwele ne-NACE MR0175 yesevisi emuncu. Inselele kwakungekona ukuhlola ukugqwala; ibiphethe ukubekezelela okungu-0.2mm kubhore yangaphakathi enkulu, engajwayelekile ngemva kokwelashwa kokushisa.
Ukulingwa nokuphathwa kokushisa kubangele ukushintsha kobukhulu obungabikezelwa kodwa obungalingani. Indlela yethu yokuqala yokwengeza isibonelelo sesitoko esijwayelekile somshini yehlulekile. Bekufanele sisebenzise inqubo 'yesihloko sokuqala': ukusakaza, ukuphatha ukushisa, bese kuba ukuskena kwe-3D. Idatha yokuskena yasetshenziswa ukudala uhlelo lwe-CNC olunxeshezelwe lomshini wokugcina. Yengeze isinyathelo, kodwa bekuwukuphela kwendlela yokushaya i-spec ngokuthembekile. Lolu hlobo lokugeleza kwenqubo eguquguqukayo lubalulekile enani eliphezulu I-Inconel 625 yokutshala imali.
Iphinde igqamise ukuthi kungani ukubambisana okuseduze phakathi kwe-Foundry nesitolo semishini kubalulekile. Uma ingaphansi kophahla olulodwa, noma ibambisene eqinile, izihibe zempendulo ziba mafishane. Izinkinga ezifana namaphethini ensalela yokucindezeleka okuvela ekusakazeni okubonakala ngesikhathi somshini zingatholwa futhi zixazululwe esigabeni sokuklama inqubo ukuze kuqhutshwe okulandelayo.
Ukubheka Emuva Nokuya Phambili
Ngakho, yini ukuthatha? Iphumelele ukutshala imali ye-Inconel 625 iyinkinga yobunjiniyela bezinhlelo. Akuyona inqubo yempahla. Idinga ukuqonda okujulile, okucishe kube okunembile kokuthi isinyathelo ngasinye-kusuka ku-wax kuya ekuhlolweni kokugcina-sikuthonya kanjani okulandelayo. Ingxubevange ayizixoleli izinqamuleli.
Imboni iqhubekela phambili ekufaniseni okwengeziwe, okusizayo. Ukuqinisa imodeli nokucindezeleka kungamaka izindawo ezishisayo ezingaba khona. Kodwa ukulingisa kuhle kuphela njengedatha yempahla kanye nezimo zomngcele owuphakelayo, okusavame ukuvela ekuzameni nasekuphutheni kweyisidala.
Konjiniyela abathola lezi zingxenye, isihluthulelo siwukubheka ngale kwencwajana yokuthengisa. Buza mayelana namasistimu amagobolondo athile asetshenziswa ku-625. Xoxa ngedatha yabo yomlando mayelana nokuphindaphindeka kobukhulu obungemuva kokushisa kwamajiyometri afanayo. Buza mayelana nekhono labo lokwenza imishini yasendlini yezinto ezibonakalayo. Ubuchwepheshe bomphakeli onjengaye QSY, ngokugxila kwayo isikhathi eside kuma-alloys akhethekile futhi ahlanganisiwe CNC imishini, ngokuvamile ilele kulolu lwazi oluqoqiwe, olusebenzayo—uhlobo olushintsha inselele ye-alloy ecacisiwe ibe ingxenye ethembekile, esebenzayo. Lelo inani langempela kulo mkhakha.
