Ujonge phezulu 'i-inconel 718' yotyalo-mali kwaye ufumana isikhukula sedatha: 1400 ° F amandla aqinile, ukugqabhuka okugqwesileyo, ukuxhathisa kwe-oxidation ukuya kuthi ga kwi-1300 °C. Into ongayifumaniyo kukuziva kweqokobhe liqhekeka kwi-dewax, okanye elo xesha lokutshona xa ingxelo ye-NDT ibonisa izikhombisi ezibuthathaka kwicandelo elibalulekileyo. I-spec sheet yenza ukuba ivakale njengengxaki esonjululweyo. Ayiyo. Luthethathethwano kunye nefiziksi, kwaye intsimbi ihlala inelizwi lokugqibela.
I-alloy ayiyongxaki. Inkqubo Yi.
Wonke umntu ulungisa kwi-Inconel 718 ngokwayo-ukwakheka, iziqinisekiso. Kodwa kwi utyalo mali, ingxubevange yinto nje ekrwada. Owona mceli mngeni luhambo olusuka kwiwax ukuya ekugqityweni kokusalwa. I-718 inomkhwa ombi wokwenza isigaba seLaves, ezo zikhompawundi ze-brittle intermetallic, ukuba ukuqina akulawulwa ngokungqongqo. Awunakuvele uyigalele njenge 304 engenabala. Iimpawu ze-thermal zihlukile. Ukushwabana kwahlukile. Indlela esabela ngayo ngeqokobhe leceramic yahlukile.
Ndikhumbula ibhetshi yecandelo leegquma leinjini yomoya. Ijometri yayinodonga olucekethekileyo kodwa intsonkothile. Sifumene i-chemistry egqibeleleyo, kodwa i-castings ayiphumelelanga kuvavanyo lokuqhawuka koxinzelelo. Ingxaki? Sasebenzisa inkqubo yeqokobhe eqhelekileyo-idyasi yobuso yesilica eqhelekileyo. I-718, kuloo maqondo obushushu athululayo, yayisabela nayo ngokwaneleyo ukubangela ukuthotywa komda wengqolowa. Yayingesosiphene esikhulu, kodwa phantsi kokwandiswa, wawunokubona ukukhuliswa. I-spec sheet yeqokobhe ayikhange ilukhankanye olo nxibelelwano. Ufunda ukuba kunzima.
Kulapho iminyaka engama-30 yevenkile ithanda khona Qingdao Qiangsenyuan Technology Co., Ltd.(QSY) uyadlala. Akunjalo nje ngokuba neziko lomlilo; imalunga nenkumbulo yeziko apho iiresiphi zeqokobhe zisebenza kunye nealloys esekwe nickel. Iwebhusayithi yabo, tsngtaocnc.com, dwelisa umsebenzi wabo ngee-alloys ezikhethekileyo, kodwa ulwazi lwangempela lukwii-sheets zabo zenkqubo-i-tweaks yokutshisa ukushisa kwangaphambili kunye nezantya zokuthulula ezenza umehluko phakathi kwesandi sokukhupha isandi kunye ne-scrap.
I-Wax, iShell, kunye noMdaniso woKwandiswa kweThermal
Masithethe ngeqokobhe. Kwi-718, uhlala usuka kwiinkqubo ezisekelwe kwi-silica. Sitshintshele kwingubo yobuso esekwe kwi-zircon kunye ne-alumina-silicate backup. Ngoba? I-Coefficient yokwandiswa kwe-thermal. Udinga iqokobhe ukuze umelane nomothuko we-thermal we- ~ 1500 ° C yentsimbi kodwa kwaye ube buthathaka ngokwaneleyo ukuba ususwe kamva ngaphandle kokubhenela kwiindlela ezinobundlobongela ezinobunkunkqele obunokusebenza-lukhuni umphezulu wokuphosa. Sisenzo sokulinganisa.
Inyathelo lokuthambisa libalulekile. Ngentsimbi, i-autoclave dewaxing iqondile. Nge-alloy esebenza kakhulu efana ne-718, apho ipateni ye-wax ingaba nkulu okanye ibe namacandelo amaninzi, ubeka umngcipheko wokuqhekeka kweqokobhe ukusuka kuxinzelelo olukhawulezayo lomphunga ukuba umjikelo awulungiswanga. Sakhe saphulukana nomthi wokungunda wonke kuba umjikelo we-autoclave wawundlongondlongo kakhulu. Iqokobhe lalikhangeleka lilungile, kodwa iintanda zeenwele zivumela intsimbi ukuba ingene, idala amaphiko amakhulu kwaye yonakalise ukuchaneka komda. Ngoku, sihlala sisebenzisa indlela ecothayo, ye-flash dewax kwimisebenzi ebalulekileyo engama-718, nangona yongeza ixesha.
Ukubhaka iqokobhe, okanye ukufudumeza kwangaphambili, lelinye ikhwelo lokugweba. Galela kwiqokobhe elibanda kakhulu, kwaye usengozini yokungahambi kakuhle. Kushushu kakhulu, kwaye unokuyibaxa i-metal-shell reaction kwaye wandise ubungakanani bengqolowa. Yento entsonkothileyo Ikhoneli 718 ukuphosa, ngokwesiqhelo sijonge iqokobhe preheat malunga ne-1000°C, kodwa oko kusemva kwexesha elide, elicothayo ukuya phezulu ukuze sikhuphe zonke izinto eziguquguqukayo ngaphandle kokothusa i-ceramic. Ayilonani olifumana kwincwadi yesifundo; yenye ofika kuyo emva kokugalelwa okumbalwa okungaphumelelanga.
Ukugada, ukutyisa, kunye nokufuna ukuPhila
Ukutya utyalo-mali oluphosa i-inconel 718 luhlobo lobugcisa. Uluhlu lokukhenkceza alukho banzi njengamanye ama-superalloy, kodwa lusafuna iziphakamisi ezinesisa, nezishushu. Inkqubo yokungena kufuneka yenzelwe ukunciphisa i-turbulence-turbulence ikhokelela kwi-oxide inclusions, ebulalayo kumacandelo e-aerospace. Sisebenzisa ukulinganisa kwekhompyuter ngoku, kodwa ukulinganisa kwangaphambili kwakusoloko kunethemba. Baza kubonisa ukuzaliswa kunye nokutyisa okugqibeleleyo. Ukuphosa okwenyani kuya kuba ne-shrinkage porosity kwiflange eshinyeneyo.
Sifunda ntoni? Ukulinganisa sisikhokelo, hayi umprofeti. Kusafuneka wenze ubunjineli ngaphezulu kwe-718. Sihlala sisebenzisa imikhono ye-exothermic feeder eyenzelwe ialloyi zenickel ukugcina isikhuphukeli sishushu ixesha elide. Nangona kunjalo, ngamanye amaxesha kuya kufuneka wongeze ukubanda okuncinci kwiindawo ezicwangcisiweyo ukunyanzela ukuqina komkhombandlela ukuya kwindawo yokunyuka. Yinkqubo ebambekayo yophononongo kunye nokuphindaphinda. Iqabane elifana ne-QSY, kunye nemvelaphi yabo enzulu iqokobhe ngundo ukuphosa kwaye utyalo mali, ngokwesiqhelo inethala leencwadi loyilo oluqinisekisiweyo lokungena kwiintsapho ezahlukeneyo zealloyi, esisisiqalo esikhulu.
I-Post-casting, amasango kunye nezinyusi zisisilo sokususa. 718 umsebenzi-nzima ngokukhawuleza ngendlela emangalisayo. Ukuba uzama ukuyibona okanye ukuyigaya njengentsimbi yekhabhoni, uya kutshisa iiblade kwaye mhlawumbi wenze ukuqhekeka koxinzelelo. Ukusika i-waterjet ye-Abrasive okanye iisarha zebhendi ezikhethekileyo ezinokutya okufanelekileyo kunye nesantya zibalulekile. Lixabiso kunye nexesha into abaninzi abalibala ukuba baphendule kwikowuteshini yabo yokuqala.
Unyango loBubushushu: Apho iiPropati zenziwa khona (okanye ezaphukileyo)
Le yeyona ndawo ixhaphakileyo yokungaphumeleli kwikhonkco lonikezelo. Ufumana isandi esihle, esimnandi utyalo mali. Emva koko uyonakalisa kwiziko lokuphatha ukushisa. Ngokwenziwa kwe-718, unyango lusemgangathweni: unyango lwesisombululo kunye nobudala. Kwi-cast 718, yahlukile. Ujongene ne-microstructure, ulwahlulo, kunye nezo zigaba zeLaves ezinokubakho.
Umkhuba oqhelekileyo wonyango lwe-homogenization kuqala-ubambe malunga ne-1100 ° C ngeeyure zokuchitha iiLaves kunye nokukhupha ukubunjwa. Tsiba oku, okanye ukwenze gwenxa, kwaye ukuguga okulandelayo akuyi kuvelisa i-gamma ephindwe kabini yokuchasa ngokulinganayo. Isiphumo? Iimpawu ezingahambelaniyo zoomatshini. Ndikhe ndayibona i-castings idlula i-UT kodwa yasilela kuvavanyo lwe-batch tensile kuba umjikelo wonyango wobushushu wawusekwe kwi-spec yemathiriyeli eyenziweyo.
Ulawulo lwe-atmosphere alunangxoxo. Vacuum okanye iargon. Nayiphi na ioksijini ekhoyo ngexesha lobushushu obuphezulu be-homogenization iya kubangela i-oxidation enzulu yomhlaba kunye nokuncipha kwezinto ezibalulekileyo zokudibanisa njenge-chromium. Awunyusi nje umphezulu; uguqula ukunyibilika kolusu. Sifunde oku emva kokuba ibhetshi iphume kwiziko ekucingelwa ukuba alizinzile elinoqweqwe olungwevu. Ukutshiza kuveze imingxuma. Itywina leziko lomlilo lalicatshisiwe. Ngoku, siqhuba iikhuphoni zamangqina nawo wonke umthwalo ukuqinisekisa ukuba umoya ucocekile.
UMatshini kunye noMqobo wokugqibela
Apha kulapho imodeli ehlanganisiweyo ye-QSY ye utyalo mali kwaye CNC Machining ibonisa ixabiso layo. Machining cast 718 sisilwanyana eyahlukileyo kunokuba machining iqabane layo esebenzayo. Ubunzima bunokungahambelani, kwaye i-micro-shrinkage efihliweyo okanye i-inclusions ingaqhekeza i-$ 200 ekupheleni kokugaya ngokukhawuleza.
Isitshixo zizinzile, ukuseta okungqongqo kunye nokusikeka okuzinzileyo. Awuyi kukwenza oomatshini besantya esiphezulu apha. Imalunga nokucotha nokuzinza, kunye nesipholisi esikhulu ukulawula ubushushu kunye nokuthintela ukuqina komsebenzi womphezulu. Ijiyometri yesixhobo ibalulekile-iharika entle, imiphetho ebukhali. Izixhobo ezibuthuntu zithambisa nje izinto kwaye zivelise ubushushu obugqithisileyo.
Okona kubaluleke kakhulu, ulandelelwano lomatshini kufuneka lucwangciswe kunye noxinzelelo olushiyekileyo lokuphosa engqondweni. Ungadinga ukurhabaxa, emva koko unciphise uxinzelelo, emva koko ugqibezele umatshini. Ukuba uzama ukuyisusa yonke ngexesha elinye, inxalenye inokujika ngokukhawuleza emva kokuba ingafakwanga, iyenze ingabi namsebenzi. Luthethathethwano lokugqibela, olunenyameko ukutyhila indawo egqibeleleyo ukusuka kobo burhabaxa, nokulinganisa.
Ngoko, Zithini Iindleko Zokwenyani?
Xa uvavanya umboneleli we utyalo-mali oluphosa i-inconel 718, awuthengi nje iikhilogram zentsimbi. Uthenga imbali yabo yolawulo lwenkqubo, ukuqonda kwabo ngesinyithi, kunye nenkumbulo yeziko yokusombulula iingxaki. Isicatshulwa esinexabiso eliphantsi sihlala sivela kwivenkile eyiphatha njengentsimbi engatyiwayo. Baza kuhambisa inxalenye ekhangeleka ilungile kodwa isilele ekuvavanyeni okanye ebaleni.
Ixabiso lomsebenzisi osekiweyo kukunqanda ezo ntsilelo ziyintlekele, zilibazisa inkqubo. Kusekwazini ukuba uyilo lwesango elithile lusebenzela loo jiyometri yesibiyeli ethile, okanye ukuba umgubo othile weceramic ufuna i-tweak kwi-slurry viscosity ye-718. Le asiyomveliso yorhwebo. Ifana kakhulu nesinyithi se-bespoke. Ixabiso langempela lisiqinisekiso sokuba inxalenye iya kwenza phantsi kweemeko ze-spec sheet ezichaza ngokuzithemba. Kwaye eso siqinisekiso sakhelwe phezu kwesiseko seempazamo ezidlulileyo, izifundo ezifundiweyo, kunye nobulumko obufunyenwe nzima, obuphantsi kwevenkile.
