Iwe unotarisa kumusoro 'investment casting inconel 718' uye unowana mafashama e data: 1400 ° F tensile simba, yakanakisa kuputika kuputika, oxidation kuramba kusvika 1300 ° C. Chausingawane kunzwa kwegoko richitsemukira padova, kana kuti nguva yekunyura apo NDT chirevo chinoratidza kusasimba muchikamu chakakosha. Iyo spec sheet inoita kuti iite senge dambudziko rakagadziriswa. Hazvisizvo. Inhaurirano nefizikisi, uye simbi inowanzova nekutaura kwekupedzisira.
Iyo Alloy Haisi Dambudziko. The Process Is.
Wese munhu anogadzirisa paInconel 718 pachayo-iyo kuumbwa, zvitupa. Asi mu Investment casting, alloy ingori simbi. Dambudziko chairo rwendo kubva wakisi kusvika pakupera kukanda. 718 ine tsika yakashata yekugadzira Laves chikamu, iwo brittle intermetallic makomisheni, kana iyo kuomeswa isina kunyatsodzorwa. Iwe haugone kungodira senge 304 isina tsvina. Thermal maitiro akasiyana. Iyo shrinkage yakasiyana. Nzira iyo inopindirana nayo neganda receramic yakasiyana.
Ndinorangarira batch ye turbine shroud segment. Iyo geometry yaive yakatetepa-madziro asi yakaoma. Isu takawana iyo chemistry yakakwana, asi iyo castings yakakundikana kunetseka kuputika kuyedzwa. Dambudziko? Isu taishandisa yakajairwa shell system-yakajairika yakasanganiswa silica kumeso jasi. 718, panguva yekudurura tembiricha, yaiita nayo zvakangoringana kukonzera kuderera kwemuganho wezviyo. Yakanga isiri kuremara kukuru, asi pasi pekukudza, waigona kuona kukwidziridzwa. Iyo spec sheet yegoko haina kutaura iyo yekudyidzana. Unodzidza izvozvo zvakaoma.
Ndiko kune makore makumi matatu echitoro Qingdao Qiangsenyuan Technology Co., Ltd.(QSY) inopinda mukutamba. Hakusi kungova nechoto chete; ndeyekuyeuka kwemasangano ayo mabikirwo emagoko anoshanda nawo nickel-based alloys. Webhusaiti yavo, tsngtaocnc.com, inonyora basa ravo nearoyi anokosha, asi ruzivo rwechokwadi rwuri mumapepa avo ekugadzirisa-matanho ekupisa kupisa kwekushisa uye kumhanya kwekudurura kunoita mutsauko pakati pekukanda inzwi uye zvimedu.
Wax, Shell, uye Dhanzi reKuwedzera Kupisa
Ngatitaure nezvedeko. Kune 718, iwe unowanzo simuka kubva kune yakajairwa silica-based masisitimu. Isu takachinjira kune zircon-yakavakirwa kumeso jasi uye nealumina-silicate backup. Sei? Coefficient yekuwedzera kwekushisa. Unoda goko kuti rimire kutyisa kwesimbi ye ~ 1500 ° C asi zvakare kuve isina kusimba zvekuzobviswa gare gare pasina kushandisa chisimba mechanicha nzira dzinogona kushanda-kuomesa nzvimbo yekukanda. Icho chiito chekuenzanisa.
Nhanho yekubvisa wakisi yakakosha. Nesimbi, autoclave dewaxing yakatwasuka. Iine alloy yepamusoro-soro se718, apo peteni yewakisi inogona kunge yakakura kana kuti ine zvikamu zvakakora, unoisa panjodzi yekutsemuka kubva kumhepo inokurumidza yemhepo kana kutenderera kukasagadziriswa. Isu takamborasikirwa nemuti wese wekuumbwa nekuti iyo autoclave cycle yaive yakanyanyisa. Iyo goko yaitaridzika zvakanaka, asi mitsetse yebvudzi yakatsemuka inoita kuti simbi ipinde, ichigadzira zvimbi zvakakura uye ichiparadza kurongeka kwedimensional. Ikozvino, tinowanzo shandisa nzira inononoka, inopenya dewax yemabasa akakosha 718, kunyangwe ichiwedzera nguva.
Shell kubika, kana preheating, imwe danidzo yekutonga. Dururira mugoko rinonyanya kutonhora, uye unoisa panjodzi yekukanganisa. Kunyanya kupisa, uye iwe unogona kuwedzeredza maitiro esimbi-shell uye kuwedzera saizi yezviyo. Kune yakaoma Inconel 718 kukanda, isu tinowanzo tarisa kuti goko rinopisa risati rasvika 1000 ° C, asi mushure menguva refu, inononoka yekukwira kumusoro kuti ibvise zvese zvinoputika pasina kuvhundutsa ceramic. Haisi nhamba yaunowana mubhuku; ndiyo yaunosvika pairi mushure mekudirwa mashoma akatadza.
Kubhejera, Kudyisa, uye Kutsvaga Kwakanaka
Kudyisa mari yekukanda inconel 718 chimiro cheunyanzvi. Kutonhora kwayo hakuna kupamhama semamwe ma superalloys, asi ichiri kuda rupo, kupisa kunokwira. Iyo gating system inofanirwa kugadzirwa kuti ideredze mhirizhonga-mhirizhonga inotungamira kune oxide inclusions, iyo inouraya mune aerospace zvikamu. Isu tinoshandisa komputa simulation ikozvino, asi yekutanga simulations yaiwanzove ine tariro. Vaizoratidza kunyatsozadzwa nekudyisa. Iko kukanda chaiko kwaizove ne shrinkage porosity mune gobvu flange.
Tinodzidzei? Simulation igwara kwete muporofita. Iwe uchiri kuda kuwedzera-engineer mafeeders e718. Tinowanzo shandisa exothermic feeder maoko akagadzirirwa nickel alloys kuti simiti igare ichipisa. Kunyangwe ipapo, iwe dzimwe nguva unofanirwa kuwedzera kutonhora kudiki munzvimbo dzakarongwa kuti umanikidzire kusimba kune inosimuka. Iri tactile maitiro ekuongorora uye kudzokorora. Mumwe akafanana neQSY, ane yavo yakadzika kumashure mukati shell mold casting uye Investment casting, kazhinji ine raibhurari yeakasimbiswa gating dhizaini yemhuri dzakasiyana dzealloy, inova yekutanga musoro.
Post-casting, magedhi uye risers chikara kubvisa. 718 inoshanda-inoomesa zvinoshamisa nekukurumidza. Kana ukaedza kuona kana kukuya sesimbi yekabhoni, unopisa mashizha uye pamwe nekukonzera kutsemuka kwekushushikana. Abrasive waterjet yekucheka kana specialized band saw ane chikafu chakakodzera nekumhanya kwakakosha. Mutengo uye nguva chinhu vazhinji vanokanganwa kuzvidavirira mune yavo yekutanga quote.
Kurapa Kupisa: Panoitwa Zvivakwa (kana Zvakaputswa)
Iyi ndiyo inonyanyozivikanwa pfungwa yekukundikana mukutengesa chain. Unowana ruzha rwakanaka Investment casting. Ipapo iwe unoiparadza muchoto chekupisa. Kune yakaitwa 718, kurapwa kwacho kwakajairwa: mhinduro yekurapa uye zera. Kune cast 718, zvakasiyana. Iwe uri kubata ne-as-cast microstructure, kupatsanura, uye izvo zvingangoita Laves zvikamu.
Iyo yakajairwa tsika ndeye homogenization kurapwa kutanga-inobata kutenderedza 1100 ° C kwemaawa kunyungudutsa Laves uye kunyange kunze kwekuumbwa. Svetuka izvi, kana kuzviita zvisizvo, uye kuchembera kunozotevera hakuburitse inodiwa gamma yakapetwa kaviri precipitates zvakafanana. Zvakaguma nei? Kusapindirana kwemagetsi maitiro. Ndakaona ma castings achipfuura UT asi achitadza batch tensile bvunzo nekuti kupisa kutenderera kwakavakirwa pane yakaumbwa zvinhu spec.
Atmosphere control haigone kutaurirana. Vacuum kana argon. Chero okisijeni iripo panguva yekupisa-yepamusoro homogenization inokonzeresa kuokisisa kwepamusoro uye kupera kwezvinhu zvakakosha zvealloying senge chromium. Hausi kungoyera pamusoro; uri kushandura metallurgy yeganda. Isu takadzidza izvi mushure mekunge batch yabuda muchoto chaifungidzirwa kuti inert inert grey crust. Machining akaburitsa gomba. Chisimbiso chechoto chakanga chakanganiswa. Zvino, isu tinomhanyisa makuponi ekupupurira nemutoro wese kuratidza kuti mamiriro aive akachena.
Machining uye Final Hurdle
Apa ndipo apo QSY's yakabatanidzwa modhi ye Investment casting uye CNC machining inoratidza kukosha kwayo. Machining cast 718 imhuka yakasiyana pane kugadzira imwe yayo yakagadzirwa. Iko kuomarara kunogona kusaenderana, uye yakavanzika micro-shrinkage kana inclusions inogona kuputsa $200 yekupedzisira mill nekukasira.
Kiyi yakagadzikana, yakaomesesa setups uye inochengetedza kucheka. Iwe hausi kuenda kunomhanya-mhanya machining pano. Ndezvekunonoka uye kwakatsiga, ine copious coolant kugadzirisa kupisa uye kudzivirira kuoma kwebasa kwepamusoro. Turusi geometry yakakosha-yakanaka rake, mipendero yakapinza. Zvishandiso zvisina kusimba zvinongozora zvinhu uye kugadzira kupisa kwakanyanya.
Kunyanya kukosha, kutevedzana kwemuchina kunofanirwa kurongwa nekukanda kwasara kushushikana mupfungwa. Ungangoda kuita rough, wobva wapedza stress, wozopedzisa muchina. Kana iwe ukaedza kuzvibvisa zvese nekuenda kumwe chete, chikamu chinogona kuchinjika zvakanyanya mushure mekunge chisina kuvharwa, chichiita kuti chisashande. Iko kutaurirana kwekupedzisira, kwakangwarira kuratidza chikamu chakakwana kubva kune iyo yakaoma, yakasimudzwa.
Saka, Chii Chaiyo Mutengo?
Paunoongorora mutengesi we mari yekukanda inconel 718, hausi kungotenga pondo dzesimbi. Iwe uri kutenga nhoroondo yavo yekudzora maitiro, kunzwisisa kwavo kwesimbi, uye nekugadzirisa kwavo matambudziko ekurangarira. Iyo yakachipa quote inowanzobva kuchitoro inoibata sesimbi isina tsvina. Ivo vanoendesa chikamu chinotaridzika zvakanaka asi chinotadza mukuyedza kana mumunda.
Kukosha kwemushandisi akasimbiswa ndekwekunzvenga izvo njodzi, inonoke kukundikana. Zviri mukuziva kuti imwe gedhi dhizaini inoshanda kune iyo chaiyo bracket geometry, kana kuti chaiyo yakawanda yedongo poda inoda tweak mune slurry viscosity ye 718. Izvi hazvisi zvekugadzira zvigadzirwa. Zvakanyanya kufanana nesimbi yebespoke. Mutengo chaiwo ivimbiso yekuti chikamu chichaita pasi pemamiriro ayo spec sheet inotsanangura nechivimbo. Uye vimbiso iyoyo yakavakirwa pahwaro hwemhosho dzakapfuura, zvidzidzo zvakadzidzwa, uye huchenjeri hwakakunda, hwepasi pechitoro.
