Paunonzwa 'investment casting Inconel', pfungwa yekukurumidza kazhinji ndeyekuita kwakanyanya - turbine blades, manifolds emuchadenga, chinhu ichocho. Asi pane gap pakati peiyo spec sheet uye yekudira chaiyo. Zvitoro zvakawanda zvinoti vanogona kuzviita, asi kubata aya manickel-based alloys, kunyanya anofarirwa neInconel 718 kana 625, hakusi kungova negoko receramic nechoto. Iwo chaiwo manomano ari mukupisa manejimendi, gating dhizaini, uye kutaura chokwadi, kuziva nguva yekufamba kubva kune geometry iri kungobvunza dambudziko. Ndakaona inodarika purojekiti imwe chete nekuti tarisiro yaingove pagiredhi rezvinhu padhirowa, kwete pamabatiro azvinoita kana yanyungudutswa uye ichimhanya nemuforoma.
Iyo Alloy Haisi Iyo Yese Nyaya
Kutanga nekunyungudika ndiko kwaunoparadzanisa hurukuro kubva kubasa. Inconel ine tsika yakashata yekuita kana ukakanganisa mamiriro ekunze. Isu tinomhanyisa mavira edu evacuum zvakasimba, asi kunyangwe zvakadaro, kutsvaga zvinhu zvinogona kukonzera nyaya. Hazvisi zvekungodzivirira oxidation; ndezvekudzora mwero wekutonhora kubva pakuenda. Kukurumidza, uye unovharira mukushushikana uye kusimudzira micro-porosity iyo inotadza kuongororwa gare gare. Kunyanya kunonoka, uye iwe unowedzera kukura kwezviyo, uchiuraya ma mechanic zvimiro zvauri kuirasira pakutanga.
Ini ndinorangarira bhechi reiyo static structural chikamu mune ivhu-based turbine. Kudhinda kwakadaidzira kuisa mari kukanda Inconel 718, zvinhu zvakajairika. Asi misiyano yeukobvu hwemadziro yaive yakaoma. Takadira, uye NDT yakaratidza mari yakachena. Nekudaro, panguva yemhinduro yekupisa kupisa nhanho, mashoma mativi akapokana kupfuura salvage. Mupari wemhosva? Uneven solidification kugadzira mukati kushushikana mapatani kuti kupisa kurapa kunongowedzera. Iyo alloy yakasangana spec, asi maitiro haana kuverengera maitiro ayo chaiwo ekupisa kupisa. Taifanira kudzokera, kugadzira patsva Investment casting gating kugadzira kumwe kutonhora kwakafanana, uye wedzera nhanho-yekuzorodza isati yazara kupisa kutenderera kutenderera. Yakawedzera mari uye nguva, asi zvaive izvo kana kuti zvimedu.
Apa ndipo panonetsa ruzivo nezveketani yakazara. Chitoro chinongodira simbi nekuzvitakura imhosva. Iwe unoda iyo yekutanga uye machining pasi pedenga rimwe, kana zvirinani mukubatana kwakasimba. Ndakamboshanda neQingdao Qiangsenyuan Technology Co., Ltd. (QSY) pane prototyping kare. Kugadzika kwavo kune musoro-kupfuura makore makumi matatu mukukandira nekugadzira, kubata zvese kubva kugoko regoko kuenda Investment casting uye ipapo CNC inoshanda pazvinhu zvakafanana. Kune Inconel, kuenderera mberi kwakakosha. Iwe haugone kuve neimba yekukanda ichipomera machinist panzvimbo yakaoma, uye machinist achipomera mhosva yakaipa. Kana chiri chinhu chimwe chete, iyo yemhinduro loop inokurumidza. Vanoona hupenyu hwakazara, kubva kune wakisi kusvika pakupera chikamu, izvo zvinozivisa zvirinani sarudzo padanho rekudurura.
Apo Iyo Process Inoruma Shure
Chivakwa cheShell imwe nzvimbo yehondo yakanyarara. Kune simbi dzekabhoni, yakajairwa slurry uye stucco system inogona kubhururuka. YeInconel, kunyanya kune dzakatetepa-madziro kana dzakaomarara dzemukati ndima, iyo goko inoda yakasarudzika yekushisa kugadzikana uye kudhirika. Kana goko racho rakasimba kwazvo, rinomanikidza kukanda panguva yekutonhora, zvichiita kuti misodzi inopisa. Kana yakanyanya kusimba, inogona kuputsika panguva yekubata kana kudira pachayo. Takaedza neakasiyana-siyana anosanganisirwa-yakasanganiswa silica, zircon, alumina-tichiedza kutsvaga chiyero chakakodzera cheimwe Inconel 625 valve body. Zvakatora kudzokororwa katatu kuti tiwane goko raizopona neautoclave dewaxing uye 1500°C+ kudururwa pasina kuputika kana kukonzeresa kupedzwa kwepamusoro pane chikamu chakakandwa.
Dimensional accuracy ndiyo nyika yechipikirwa ye Investment casting, asi neInconel, shrinkage haiwanzo kufungidzira. Iyo yakaburitswa shrinkage allowance ndiyo yekutanga, kwete vimbiso. Icho chaicho chinhu chinoenderana nechikamu geometry, gating, uye maitiro atinoimisa musumbu. Isu tinochengeta raibhurari yezvigadziriso zvezvinhu zvedu zvechikamu mhuri. Chimiro chakareruka checylindrical chinogona kunge chakanaka nebhuku rekuverenga 2.1% mutsara shrinkage. Asi chikamu chine mbabvu dzinopindirana, senge compressor imba, inodhonza zvakasiyana. Takadzidza izvi nenzira yakaoma pane yekutanga aerospace order. Isu takashandisa yakajairwa shrink mutemo, uye iyo yekupedzisira yakakandirwa yaive kunze kwekushivirira pane dzakakomba dzekubatana. Ndakatozoshandisazve wakisi kufa, izvo zvakadzosera chirongwa kumashure masvondo. Ikozvino, kune chero nyowani yakaoma geometry, isu tichamhanyisa simulation kana vhoriyamu ichizvipembedza, kana kutodurura imwechete yekupira prototype mune yakachipa alloy kutanga kuyera kuderera chaiko.
Post-casting ndipo apo vazhinji vanofunga kuti basa rakaoma rinoitwa. Hazvisizvo. Simba reInconel rinobva mukunaya kwayo nekuoma kwayo. Kune 718, izvo zvinoreva kutevedzana chaiko: mhinduro kubata, kudzima, zera. Chiyero chekudzima chakakosha. Kana chikamu chacho chikatonhora kubva mukugadzirisa tembiricha zvishoma nezvishoma, unowana mvura yakawandisa yekusimbisa zvikamu mumiganhu yezviyo, zvichiita kuti iite brittle. Takanga tine batch apo rack yekudzima yakanga yaremerwa, uye zvikamu zvepakati zvakatonhora zvishoma. Vakapasa cheki yekuomarara kwekutanga asi vakakundikana zvakanyanya mukuyedzwa kwekuneta. Ongororo yekutadza yakanongedza pane yakakanganiswa microstructure kubva mukudzima kusina kuenzana. Kwakanga kuri kukundikana kwokugadzira zvinhu, kwete kugadzirwa kwesimbi, asi mugumisiro wacho wakanga wakafanana—marara.
Machining: Imwe Hafu yeHondo
Ichi ndicho chikonzero iyo yakasanganiswa modhi yekambani yakaita seQSY yakakosha. Kukanda chikamu chakakwana cheInconel inongova hafu yebasa. Kana iyo yakadzika CNC machining isina kurongedzerwa kusimba-kuomesa hunhu, unoparadza kukanda kwakanaka. Inconel inotyisa uye yakaoma. Inoseka kujaira kushandisa. Unoda zvakaomesesa setups, akasarudzika carbide mamakisi, yakakwira-kudzvanya inotonhorera kutyora chip, uye yakaderera, inowirirana mareti ekudya. Chinangwa ndechekuveura zvinhu pasina kurega kupisa kunowedzera, izvo zvinongoomesa nzvimbo yauri kuedza kucheka.
Isu takambogamuchira yakakandwa Inconel 718 bracket, kungoita kuti machinist wedu atore zvigayo zvitatu zvinodhura zvekupedzisira achiedza kukuya flat flat. Dambudziko? Ganda rekukanda, nepo rainzwika, raive nekakuomarara zvishoma, rakachinjika microstructure kubva pakubata negoko. Yedu yakajairwa machining paramita, iyo yakashanda mukati mechikamu, yaive yakanyanyisa hutsinye kune iyo ganda. Taifanira kuwedzera mwenje, yekutanga roughing pass ine chaiyo paramita kuti tingopaza iyo yepamusoro layer. Iyo nuance iwe unongodzidza nekuita, kana nekushanda nemumwe ane dhipatimendi reCNC rinotaura zuva nezuva nevanovamba. Kuongorora saiti yavo pa tsngtaocnc.com, unoona vachinyora zvese Investment casting uye CNC machining e nickel-based alloys. Ruzivo urwu rwakabatanidzwa ndirwo runodzivirira izvi zvinodhura zvinoshamisa. Iye machinist anoziva zvekutarisira kubva mukuita kweiyo yekutanga, uye muvambi anoziva izvo machinist anoda kuchekwa kwakachena.
Kutendeseka kwepamusoro kwakakosha kune kuneta-akakosha zvikamu. Yakashata machining pass inogona kuunza micro-cracks kana tensile stress inova yekutanga nzvimbo yekutadza. Apa ndipo apo nhanho dzekupedzisira dzekugadzira-kazhinji kukuya kana kukudza kune dzakakosha nzvimbo-inove chikamu chemhando cheni. Haisi fungidziro; inzira yakatarwa. Iko kugona kudzora iyo cheni yese, kubva kusimbi yakanyungudutswa kusvika kumagumo ekupedzisira, pasi pehumwe hunhu system, inoderedza zvinosiyana zvinoshamisa.
Chokwadi cheKutsvaga uye Vetting
Saka, paunenge uchitsvaga Investment casting Inconel, chii chaunofanira kutarisa kunze kwebhurocha rekutengesa? Kutanga, bvunza nezvehuzivi hwavo hwekutarisira kupisa. Vanongotevedzera resipi here, kana kuti vanogadzirisa ma parameter sekudururwa tembiricha uye mold pre-heat zvichibva pane chikamu geometry? Chechipiri, ongorora kurongeka kwavo kwezvinhu. Kune aerospace kana oiri & gasi, iwe unoda yakazara melt mishumo uye chemistry cheki. Vanogona kupa izvozvo? Chechitatu, uye chinonyanya kukosha, tarisa kugona kwavo kwemashure ekukanda. Ivo vanopisa kubata-mumba kune yakasimbiswa spec (seAMS 2774)? Ivo vane CNC machining yakatsaurirwa kune yakaoma alloys, kana ivo vanoiburitsa?
Mutengesi akaita seQSY, ane makumi emakore enhoroondo, kazhinji ane masisitimu aya akaiswa mukati. Kutaura kwavo kwehunyanzvi mukukanda uye kugadzira maaloyi akakosha senge nickel-based ndiyo chiratidzo chakakosha. Zvinoreva kuti vangangosangana-uye vakagadzirisa-matambudziko ekudyidzana pakati pekukanda uye kupedza nhanho. Havasi chitoro chenamo chete; ivo vanogadzira chikamu. Musiyano iwoyo unokosha.
Pakupedzisira, iva wechokwadi pamusoro pemutengo uye nguva yekutungamira. Iyo yakakodzera Inconel investment cast haina kudhura kana kukurumidza. Mashandisirwo epatani yewakisi ndeyechokwadi. Iyo shell process ndeye-multi-day. Kurapa kwekupisa chinhu chakakosha chinodzorwa oparesheni. Uye kugadzira kunonoka. Kana quote ichiita seyakanyanya kunaka kuti ive chokwadi, vangangove vachicheka makona-pamwe padanho revacuum panguva yekunyunguduka, kana kusvetuka yakakodzera HIP (Hot Isostatic Pressing) kutenderera kuvhara porosity, kana kushandisa generic tooling yekugadzira. Chero ani zvake achadzoka kuzotambudza chikamu chebasa. Kukosha hakusi mupondo yesimbi yaunowana; iri mune inodzorwa, yakanyorwa, uye yakabatanidzwa maitiro inoshandura iyo simbi kuita chinhu chakavimbika. Ndizvo zvauri kunyatsobhadhara.
