Paunoona 'Inconel 718 investment casting' pane imwe fungidziro, inowanzouya nepristine data sheet inonyora ekupedzisira kusimba simba uye kukambaira kuramba kusvika 1300 ° F. Zvisinganyanyi kutaurwa nebepa kuoma musoro kwealloy panguva yekudonha kwegoko, kana kuti kusarura kudiki mugeti kunogona kushandura chikamu cheturbine chakaoma kuita pepa rinodhura zvakanyanya. Pane fungidziro yakajairika yekuti nekuti iri kushandiswa zvakanyanya superalloy, maitiro acho akaenzana. Hazvisizvo. Dhiabhorosi ari mukutonga kwekupisa - kutonga kupisa kwete chete panguva yekudira, asi kubva panguva yaunotanga kuvaka ganda receramic.
Mutambo weShell: Kupfuura Chete Ceramic Dip
Kutanga newax pattern, maitiro anoita seakananga. Asi ne718, iyo yakakwira gamma prime uye gamma yakapetwa kaviri yemukati yemukati inoipa iyo huru zvivakwa zvakare inoita kuti ive dambudziko rekudyisa kusimba shrinkage. Iwe haugone kungoshandisa iyo yakafanana dhizaini yaungashandisa ye304 isina tsvina. Ndakadzidza izvi nenzira yakaoma pabasa rekutanga remagetsi emagetsi. Isu takashandisa yakajairwa yepamusoro-gating sisitimu, yakanaka wakisi musangano, goko rakakwana. Iyo NDT yakaratidza network ye microshrinkage mumakobvu anokwira makumbo. Mashoko acho akanga akanaka, asi asina ruzha zvakakwana. Iyo spec yakadana kuti iongororwe radiographic, uye isu takatadza. Nyaya yakanga isiri yemakemikari alloy; kwaiva kuti kureba kwedu kwekudya kwakanga kusina kukwana 718 chaiwo maitiro ekusimba. Taifanira kudzoka, kuwedzera mamwe masimuriro, uye chaizvo kuwedzera iyo modulus mune zvimwe zvikamu kukurudzira kutungamira kusimba kune vanofudza. Yakawedzera mutengo uye nguva iyo yekutanga quote haina kumbobatwa.
Ipapo pane goko pacharo. Iyo yakajairwa zirconia/silica binder masisitimu inogona kushanda, asi kune dzakatetepa-madziro mativi kana zvikamu zvinoda kupedzwa kwepamusoro, isu tasuduruka takananga kune akasanganiswa silica-based kumeso majasi. Iyo yekupisa yekuwedzera kusawirirana haina kunyanya kuomarara, ichidzikisa njodzi yekupisa kubvaruka sezvo yakakura 718 yekukanda inotonhorera uye zvibvumirano kurwisa goko rakaomarara. Chinhu chidiki diki, asi kusvetuka kuongororwa kwakafanana nekufungidzira kuti plaster yese yakafanana pakuvaka imba. Unogona kuwana chimiro, asi mitswe ichataura nyaya.
Ndinoyeuka imwe purojekiti yakaitwa Qingdao Qiangsenyuan Technology (QSY). Vanga vari mumutambo kwemakumi emakore, uye maitiro avo ekuvaka magomba e nickel alloys ndeye methodical. Haisi yekungoita dip cycles; ndezvekudzorwa kuomesa nharaunda pakati pejasi rega rega kudzivirira goko warpage. Kune 718, uko iyo post-casting kupisa kurapwa kwakakosha kumhanyisa izvo zvinosimbisa zvikamu, goko rakamonyoroka rinogona kutungamira kune yasara kushushikana muchikamu che'as-cast' icho kunyange kurapa kwemhinduro kunonetsa kugadzirisa zvizere. Mashizha avo emaitiro aigara achisimbisa ambient humidity control-chimwe chinhu chinowanzo furatirwa asi chakakosha pakugadzikana kwedimensional.
Kudurura: Apo Dzidziso Inosangana Nechokwadi Chakanyungudutswa
Kunyunguduka uye kudurura Inconel 718 pasi pevacuum ndiyo tsika yakajairika yekudzora oxidation uye kuparara kwezvinhu kurasikirwa. Asi 'pasi pevacuum' haisi yebinary state. Chiyero chakakosha. Kukwirisa vacuum panguva yekunyunguduka kunogona kutungamira mukubuda kwakanyanya kwechromium. Iwe unopedzisira wapinda mukati meiyo nickel uye niobium, asi chromium yako inonyura, ichikanganisa oxidation kuramba. Isu tinomhanyisa zvishoma zvishoma zvine hukasha vacuum panguva yekutanga kunyunguduka, tozoikwidza kumusoro kuti icheneswe. Kutamba, kwete kuchinjika.
Iyo tembiricha yekudira ndiyo imwe yakakosha kutonga kufona. Data inoti liquidus inenge 1330°C. Kudururira kupisa kwakanyanya kunotungamira kukukura kwezviyo zvakakura uye kuita kwakasimba kwegoko, zvichisvibisa pamusoro. Kudira zvakaderera kunokoka mistuns, kunyanya mumatanho ekutonhodza akaomarara. Nzvimbo inotapira kazhinji inosunga 20-30 ° C hwindo pamusoro pe liquidus, uye zvinoenderana nechikamu geometry. Kune muviri wakakora-chikamu chevharuvhu, unogona kuenda kumusoro kuti uvandudze fluidity. Kune yakatetepa-yakavakirwa aerospace bracket, unodzika zvakaderera sezvaungashinga. Iko hakuna mhinduro yepasirese, ndosaka process qualification inomhanya isinga taurike.
Kuedza kumwe kwakakundikana kwaisanganisira pombi yepombi. Iyo geometry yakanga ine ese akakora maflange uye matete emukati mawebhu. Takadurura patembiricha ye compromise. Maflange aive akanaka, asi mawebhusaiti airatidza zvivharo zvinotonhora. Kugadzirisa kwanga kusiri kungogadzirisa tembiricha; taifanira kugadzira patsva gating kuendesa simbi inopisa yakananga kune izvo zvikamu zvitete kuburikidza neinodzorwa, isina mhirizhonga-isina kuyerera. Yakawedzera kuoma kumuti wewakisi asi yakachengetedza chikamu. Apa ndipo panowanikwa chiitiko chemuvambi, senguva refu Investment casting tarisa pachitoro seQSY, inoratidza kukosha kwayo. Vanogona kunge vakaona mazana akasiyana edambudziko iri.
Zvinozoitika: Kurapa Kupisa chikamu cheKukanda Maitiro
Kufunga nezvekurapa kwekupisa seyakasarudzika, post-casting operation kukanganisa ne 718. Iyo as-cast structure inotaura zvakananga izvo zvinopisa zvinopisa zvinogona uye hazvigone kubudirira. Iyo yakajairwa kurapwa ndeye mhinduro inotenderedza kutenderera 980 ° C, ichiteverwa nekaviri kuchembera kutenderera. Asi kana iwe uine yakanyanya dendritic segregation mune yakakandwa chimiro (yakajairwa mukukanda mari), iyo mhinduro nguva yekurapa inogona kunge isina kukwana kuti homogenize iyo alloy. Iwe unowana kuomarara kwakakodzera mushure mekuchembera, asi kuoma kwemhedzisiro kunogona kusaenderana.
Isu takambove nebheti rezvikamu zvakapasa bvunzo dzese dzemuchina asi dzakatadza nguva isati yakwana musevhisi yekuzunguza kukuru. Ongororo yeMetallurgical yakaratidza nzvimbo dzenzvimbo dze brittle Laves phase, niobium-rich eutectic inoumba panguva yekusimba kana kutonhora kusingadzoreki. Mhinduro anneal yakanga isati yanyungudika zvachose. Mudzi wechikonzero wakarongedzerwa kumashure kwekutonhora kwekukanda mukati mechoto mushure mekudururwa. Takanga tichitonhora pasi pevacuum yakazara, inova insulator huru. Kuderedza kutonhora nekudzoka shure ne argon mushure mokunge makanda akasimba akabatsira kuderedza kuoma kwekusarura, zvichipa kurapa kwakatevera kwekupisa mukana wekurwa. Yakawedzera nhanho, asi yakaita kuti hurongwa huve hwakasimba.
Kupindirana uku ndosaka zvitoro zvinopa zvakabatanidzwa CNC machining uye kurapwa kwekupisa, sechikamu chebasa ravo senge QSY rondedzero, vane mukana. Havakwanisi kubata matanho aya semasirasi. Iye machinist anofanirwa kuziva kana izvo zvinhu zvichizoshanda zvinoenderana nechikamu, uye izvo zvinorairwa nekukanda uye kupisa nhoroondo yekurapa. Inomanikidzira maonero akazara echeni yekugadzira.
Machinability: The Final Hurdle
Wese munhu anotaura nezve kukanda 718, asi nhaurirano inowanzo penya pamusoro pekuigadzira. Iyo yachembera zvinhu zvinonyanya kushatisa uye inoshanda-inoomesa ipapo ipapo. Kana maitiro ako ekukanda akasiya akaoma, brittle inclusions kana pamusoro alumina chiyero kubva kune shell reaction, iwe unoparadza maturusi ekucheka panguva yekutanga roughing pass. Hunhu hweiyo as-cast surface ndiyo yakakosha. Iyo yakanaka shell system uye inodzorwa inodururwa inoderedza chikero ichi, asi kumwe kwechipiri kwepamusoro kurapwa senge abrasive blasting kana zvinyoro nyoro kemilling inogona kudiwa chishandiso chekutanga chisati chabata chikamu.
Uyezve, kushushikana kwakasara kubva pakukanda kunogona kuve kwakakosha. Kana iwe ukasungirira chikamu chakamanikidzwa muchigadziriso uye wotora inorema kucheka, iwe unosunungura iyo kushushikana, uye chikamu chinofamba. Iwe unogona kubata kushivirira pakuvhiya kwekutanga, asi nechitatu, zvese zvadzima. Kutenderera kwakaringana-kuzorodza kusati kwave kugadzira kukuru kwakakosha. Dzimwe nguva, zvakakosha kuita hutsinye machining, wozoita imwe zororo rekushushikana, wozopedzisa machining. Zvinoita sezvisingashande, asi zvakachipa pane kukwenya kukanda pedyo-kwapedzwa nekuti yakamonyoroka panguva yekupedzisira inofinha.
Apa ndipo apo iyo yakazara-sevhisi modhi inoratidza kukosha kwayo. Mutengesi anobata iyo Investment casting kuburikidza nekupedzisira machining, semasevhisi anoratidzwa papuratifomu yeQSY, inokurudzirwa kukwirisa maitiro ese ekugadzira. Vanogona kupa zano rekuwedzera machining allowance mune yakananga kana kushandura zvishoma isina-yakakosha fillet radius kuti uvandudze kuwana chishandiso. Aya ndiwo anoshanda, anochengetedza mari ekuona anouya kubva mukubata mafambiro ese ebasa, kwete kungodira.
Mhedziso: Ihurongwa, Kwete Nhanho
Saka, 'Inconel 718 kuisa mari pakutsvaga' haisi nzira imwe chete yaunoodha kubva kukhathalogi. Iyo sisitimu yezvisarudzo zvinoenderana: shell chemistry, gating dhizaini, inopisa profiles panguva yekudira uye kutonhorera, kupisa kupisa paramita, uye machining zano. Kugonesa kudiki mune imwe nzvimbo kunogona kudzimwa nekukanganisa mune imwe. Zvitoro zvinogara zvichiendesa zvikamu zvakavimbika ndizvo zvinonzwisisa iyi ecosystem. Havangodururi simbi muforoma yedongo; vanokwanisa rwendo rwakadzorwa rwekupisa nesimbi kubva wakisi kuenda pachikamu. Iyo data sheet inokupa iwe kwekuenda, asi iyo shopu pasi ruzivo inoburitsa iyo yega nzira inoshanda yekusvika ikoko.
Paunenge uchiongorora mutengesi, tarisa kupfuura rondedzero yavo yemidziyo. Bvunza nezve yavo chaiyo mashefu masisitimu epamusoro-nickel alloys. Bvunza nezve yavo yakajairwa kupisa kupisa kutenderera kweas-cast 718 uye kuti vanoikodzera sei. Bvunza kuti vanofambisa sei shanduko kubva pakukandira kuenda kumichina. Mhinduro dzichakuudza zvakanyanya nezve kugona kwavo kupfuura chero bhurocha rinopenya. Musiyano uripo pakati pekukandira kunoshanda uye chepamusoro-kutendeseka chikamu mune izvi zvakaunganidzwa, zvakaoma-kuhwina ruzivo rwekuita.
