Xa usiva 'utyalo-mali luphosa i-Inconel', ingcinga ekhawulezileyo ihlala imalunga nokusebenza okugqithisileyo-iiblawudi ze-injini yomoya, ii-aerospace manifolds, olo hlobo lwento. Kodwa kukho umsantsa phakathi kwe-spec sheet kunye nokugalelwa kwangempela. Iivenkile ezininzi zibanga ukuba zingayenza loo nto, kodwa ukuphatha ezi ngxubevange zisekwe kwi-nickel, ngakumbi izinto ezifana ne-Inconel 718 okanye i-625, ayithethi nje ngokuba neqokobhe leceramic kunye nesithando somlilo. Iqhinga lokwenyani likulawulo lwe-thermal, uyilo lokungena, kwaye ngokungafihlisiyo, ukwazi ixesha lokuhamba kude nejometri ecela ingxaki. Ndibone iiprojekthi ezingaphezulu kwesinye kuba bekugxilwe kuphela kwibakala lezinto ezibonakalayo kumzobo, hayi kwindlela eziphatha ngayo xa inyibilika kwaye ibaleka kubumba.
I-alloy ayilona ibali lonke
Ukuqala ngokunyibilika kulapho wahlula khona intetho emsebenzini. I-Inconel inomkhwa ombi wokuphendula xa ufumanisa ukuba umoya ungalunganga. Siwaqhuba ngokuqinileyo iziko lethu lokucoca, kodwa nangona kunjalo, izinto zokulandelela zinokubangela imiba. Akukhona nje ngokuthintela i-oxidation; imalunga nokulawula izinga lokupholisa ukusuka ekuqaleni. Ngokukhawuleza kakhulu, kwaye utshixa kuxinzelelo kwaye ukhuthaze i-micro-porosity eya kuthi ingaphumeleli ukuhlolwa kamva. Ukucotha kakhulu, kwaye ufumana ukukhula okuziinkozo okugqithileyo, ubulala iipropathi zoomatshini ozenzele zona kwasekuqaleni.
Ndikhumbula ibhetshi yecandelo lolwakhiwo olumileyo kwiinjini yomoya esekwe emhlabeni. Ushicilelo lubiza utyalo-mali lokuphosa Inconel 718, izinto eziqhelekileyo. Kodwa ukwahluka kobungqingqwa bendonga bekunzima. Sagalela, kwaye iNDT yabonisa ityala elicocekileyo. Nangona kunjalo, ngexesha lesisombululo senqanaba lonyango lobushushu, iindawo ezimbalwa zajika ngaphaya kokusindiswa. Umoni? Ukuqiniswa okungalinganiyo kudala iipateni zoxinzelelo lwangaphakathi ukuba ukuphathwa kobushushu kusanda. I-alloy yadibana ne-spec, kodwa inkqubo ayikhange ithathele ingqalelo indlela yokuziphatha kwayo yokuncipha kwe-thermal. Kwafuneka sibuyele umva, siyiyile ngokutsha utyalo mali ukudibanisa ukudala ukupholisa okufanayo, kwaye ungeze inyathelo lokunciphisa uxinzelelo phambi komjikelo ogcweleyo wonyango lobushushu. Yongeza iindleko kunye nexesha, kodwa yayiyiloo nto okanye ilahleko.
Apha kulapho amava ngetsheyini epheleleyo ibalulekile. Ivenkile egalela nje intsimbi kwaye iyithumele ngenqanawa lityala. Udinga i-Foundry kunye ne-machining phantsi kophahla olunye, okanye ubuncinci kwintsebenziswano eqinile. Ndisebenze neQingdao Qiangsenyuan Technology Co., Ltd. (QSY) kwiprototyping ngaphambili. Ukuseta kwabo kuyavakala-ngaphezulu kweminyaka engama-30 besakha kunye nomatshini, ukuphatha yonke into ukusuka kubumba lweqokobhe ukuya utyalo mali kwaye emva koko i-CNC isebenze kwizinto ezifanayo. Kwi-Inconel, oko kuqhubeka kubalulekile. Awunakukwazi ukuba nendlu yokuphosa ityala i-machinist kwindawo enzima, kwaye i-machinist igxeka i-cast embi. Xa iliziko elinye, iluphu yengxelo ikhawuleza. Babona ubomi obupheleleyo, ukusuka kwi-wax ukuya kwinxalenye egqityiweyo, eyazisa izigqibo ezingcono kwinqanaba lokugalela.
Apho Inkqubo Bites Back
Isakhiwo seShell lelinye ibala ledabi elithe cwaka. Kwiintsimbi zekhabhoni, inkqubo ye-slurry eqhelekileyo kunye ne-stucco inokubhabha. Kwi-Inconel, ngakumbi kudonga olucekethekileyo okanye oluntsonkothileyo lwangaphakathi lwepaseji, iqokobhe lifuna uzinzo olukhethekileyo lwe-thermal kunye nokubola. Ukuba iqokobhe lomelele kakhulu, linyanzelisa ukuphosa ngexesha lokupholisa, okukhokelela kwiinyembezi ezishushu. Ukuba ibuthathaka kakhulu, inokuphuka ngexesha lokuphatha okanye ukuzigalela. Siye sazama ngemixube eyahlukeneyo ephikisayo-isilica edityanisiweyo, i-zircon, i-alumina-sizama ukufumana ibhalansi elungileyo kumzimba othile wevalvu ye-Inconel 625. Kuthathe amaxesha amathathu ukufumana iqokobhe eliya kusinda kwi-autoclave dewaxing kunye ne-1500 ° C + ukugalela ngaphandle kokubopha okanye ukubangela imiba yokugqiba umphezulu kwindawo yokuphosa.
Ukuchaneka komgangatho lilizwe ledinga le utyalo mali, kodwa nge-Inconel, ukucutheka akusoloko kuqikelelwa. Isibonelelo sokunciphisa esipapashiweyo sisiqalo, ayisosiqinisekiso. Eyona nto ixhomekeke kwinxalenye yejometri, isango, kunye nendlela esiyiqhelanisa ngayo kwiqela. Sigcina ithala leencwadi lezinto zolungiso kwiintsapho zethu eziqhelekileyo. Imilo ye-cylindrical elula isenokulunga nge-textbook ye-2.1% yokuncipha komgca. Kodwa inxalenye eneembambo ezidibeneyo, njengendlu ye-compressor, iya kutsala ngokwahlukileyo. Oku sikufunde kabuhlungu kwi-odolo ye-aerospace yangaphambili. Sisebenzise umgaqo oqhelekileyo wokucutha, kwaye ukuphoswa kokugqibela bekunganyamezelwanga kwiindawo ezibalulekileyo zokukhwelana. Kwafuneka kuphinde kusetyenziswe i-wax die, ebeka iprojekthi emva kweeveki. Ngoku, kuyo nayiphi na ijometri entsonkothileyo entsha, siza kuqhuba ukulinganisa ukuba ivolyum iyayithethelela, okanye sigalele iprototype enye yombingelelo kwialloyi enexabiso eliphantsi kuqala ukulinganisa olona kuncipha.
I-post-casting kulapho abaninzi bacinga ukuba umsebenzi onzima uyenziwa. Ayiyo. Amandla e-Inconel avela kukuqina kwayo kwemvula. Kwi-718, oko kuthetha ulandelelwano oluchanekileyo: unyango lwesisombululo, ukucima, iminyaka. Ixabiso lokucima libalulekile. Ukuba inxalenye iphola kwiqondo lobushushu lesisombululo ngokucothayo, ufumana imvula egqithisileyo yezigaba zokuqinisa kwimida yengqolowa, iyenze ibe brittle. Sasinebhetshi apho i-rack yokucima yayigcwele kakhulu, kwaye iindawo ezisembindini zaphola kancinane. Baphumelele uvavanyo lokuqala lobunzima kodwa basilela kakhulu kuvavanyo lokudinwa kamva. Uhlalutyo lokungaphumeleli lubhekiselele kwi-microstructure ephazamisekileyo ukusuka ekucimeni okungalinganiyo. Yayikukungaphumeleli kwenkqubo yolungiselelo, kungekhona isinyithi, kodwa umphumo wawufanayo—inkunkuma.
Oomatshini: Esinye isiqingatha sedabi
Kungenxa yoko le nto imodeli edibeneyo yenkampani efana ne-QSY ifanelekile. Ukuphosa inxalenye egqibeleleyo ye-Inconel sisiqingatha kuphela somsebenzi. Ukuba i-machining ye-CNC esezantsi ayilungiselelwanga ukuqina komsebenzi wezinto eziphathekayo, uya konakalisa ukuphosa okulungileyo. I-Inconel i-abrasive kwaye iqinile. Iyahleka isixhobo esisemgangathweni. Udinga ukuseta okuqinileyo, amabanga akhethekileyo e-carbide, i-high-pressure coolant ukuphula i-chip, kunye namazinga aphantsi, angaguqukiyo okutya. Injongo kukucheba izinto ngaphandle kokuvumela ubushushu ukuba bakheke, nto leyo eyenza lukhuni indawo ozama ukuyisika.
Sakhe safumana isibiyeli esihle se-Inconel 718, kodwa siye safumana oomatshini bethu bathatha amatye okusila amathathu abizayo ezama ukuguba iflethi elula. Ingxaki? Ulusu lokuphosa, ngelixa isandi esibonakalayo, sasinobunzima obuncinci, ukuguqulwa kwe-microstructure ekudibaneni neqokobhe. Iiparamitha zethu ezisemgangathweni zomatshini, ezazisebenza ngaphakathi kwenxalenye, zazinobundlongondlongo kakhulu kweso sikhumba. Kuye kwafuneka songeze ukukhanya, ukudlula kokuqala okurhabaxa kunye neeparamitha ezithile nje ukutyhutyha lo maleko womphezulu. Yinto entsonkothileyo oyifundayo ngokwenza, okanye ngokusebenza neqabane elinesebe le-CNC lithetha yonke imihla kunye nesiseko sabo. Ukujonga indawo yabo kwi tsngtaocnc.com, ungabona badwelise zombini utyalo mali kunye ne-CNC machining ye-nickel-based alloys. Olo lwazi ludityanisiweyo lulo olunqanda ezi zinto zothusayo zinexabiso elikhulu. Umchwephesha uyazi ukuba ulindele ntoni kwinkqubo ye-Foundry, kwaye i-Foundry iyayazi into efunwa ngumatshini wokusika okucocekileyo.
Ukuthembeka komphezulu kubaluleke kakhulu kwiindawo ezidinwayo. Ukungaphumeleli kakuhle komatshini kunokwazisa iintanda ezincinci okanye uxinzelelo oluthi lube ziindawo zokuqalisa ukusilela. Apha kulapho amanyathelo okugqibela omatshini-kaninzi ukugaya okanye ukuhoya iindawo ezibalulekileyo-kuba yinxalenye yekhonkco lomgangatho. Asiyonto icingelwayo; yinkqubo echaziweyo. Ukukwazi ukulawula loo khonkco yonke, ukusuka kwisinyithi esinyibilikisiweyo ukuya ekugqibeleni, phantsi kwenkqubo enye yekhwalithi, kunciphisa iinguqu ngokuphawulekayo.
Inyani yokuFumana kunye noVavanyo
Ngoko, xa ukhangela utyalo-mali lokuphosa Inconel, yintoni omele uyijonge ngaphaya kwencwadana yokuthengisa? Okokuqala, buza ngefilosofi yabo yolawulo lobushushu. Ngaba balandela nje iresiphi, okanye ngaba bahlengahlengisa iiparamitha ezinjengobushushu obuthululwayo kunye nobushushu bangaphambili obusekwe kwinxalenye yejometri? Okwesibini, coca ukulandeleka kwabo kwempahla. Kwi-aerospace okanye i-oyile & negesi, udinga iingxelo ezinyibilikayo ezipheleleyo kunye nokuhlolwa kwekhemistri. Ngaba banokubonelela ngaloo nto? Okwesithathu, kwaye okona kubaluleke kakhulu, jonga amandla abo emva kokuphosa. Ngaba baphatha ukushisa ngaphakathi kwindlu ukuya kwi-spec eqinisekisiweyo (njenge-AMS 2774)? Ngaba banabo oomatshini be-CNC abazinikele kwii-alloys ezinzima, okanye ngaba bayalukhupha?
Umthengisi ofana ne-QSY, kunye namashumi eminyaka embali, ngokuqhelekileyo banazo ezi nkqubo. Ukukhankanywa kwabo kokusebenza ngokugqwesileyo kokubini kunye nokwenza ii-alloys ezikhethekileyo ezifana neze-nickel-based luphawu oluphambili. Kuthetha ukuba bakhe badibana-kwaye basonjululwa-iingxaki zokusebenzisana phakathi kwenqanaba lokusa kunye nokugqiba. Abayiyo nje ivenkile yewax-and-galle; bangabavelisi becandelo. Loo mahluko ubalulekile.
Okokugqibela, yiba nenyani malunga neendleko kunye nexesha lokukhokela. Utyalo mali olululo lweInconel alubizi okanye lukhawuleza. Isixhobo sepateni ye-wax ichanekile. Inkqubo yeqokobhe ziintsuku ezininzi. Unyango olushushu luyinkqubo ebalulekileyo elawulwayo. Kwaye umatshini uyacotha. Ukuba isicatshulwa sibonakala silungile kakhulu ukuba sibe yinyani, mhlawumbi basika iikona-mhlawumbi kwinqanaba le-vacuum ngexesha lokunyibilika, okanye ukutsiba umjikelo ofanelekileyo we-HIP (Hot Isostatic Pressing) ukuvala i-porosity, okanye ukusebenzisa i-generic tooling kwi-machining. Nawuphi na kwabo baya kubuya ukuza kubamba inxaxheba kwinkonzo. Ixabiso alikho kwiponti yentsimbi oyifumanayo; ikwinkqubo elawulwayo, ebhaliweyo, nehlanganisiweyo ejika loo ntsimbi ibe licandelo elithembekileyo. Yiloo nto uyihlawula ngokwenene.
