Paunonzwa 'ceramic musimboti wekudyara mari', vazhinji vanofunga kuti ingori chibatiso, chimiro chekupira. Ndiyo yekutanga kusanzwisisa. Muchokwadi, ndiye mugadziri wemukati wakaoma. Musimboti wakagadzirwa zvisina kunaka unogona kudonha, kushanduka, kana kutadza kubuda, kukwenya blade yese yeturbine kana implant yekurapa. Ndakaona zvitoro zvichipomera alloy kana goko, kungowana chikonzero chaive musimboti waisakwanisa kumirisana nekuvhunduka kwekupisa kwekudururwa kwe superalloy. Haisi chikamu; kuzvipira kune chaiyo kubva pakutanga kweiyo dhizaini kutenderera.
Iyo Material Haisi Chete Ceramic
Kuchidaidza kuti a ceramic musimboti zvakafanana nekudaidza simbi kuti 'simbi'. Kuumbwa ndizvo zvese. Silica-based cores yakajairika, asi kune yakakwirira-nickel alloys yakadirwa pamusoro pe1500 ° C, uri kutarisa alumina kana zirconia-based system. Musiyano hausi wetembiricha chete. Iyo coefficient of thermal expansion (CTE) inofanirwa kugadzirwa kuti ienderane neyakatenderedza goko mold. Kusapindirana, kunyangwe kudiki, kunogadzira kutsemuka kwekushushikana panguva yekutonhora. Ndinorangarira chirongwa che cobalt-based alloy manifold patakashandisa off-the-sherufu alumina musimboti. Yaitaridzika zvakanaka post-dewax, asi mushure mekudururwa, madiki-akatsemuka mukati mekati akashandurudzwa kuita mafisuro epamusoro pamatanho emukati ekukanda. Iyo yakakosha zvinhu yaive 'yakanaka', asi yanga isiri 'chaizvo'.
Zvadaro pane binder system. Haisi yekungobata zviyo zveceramic pamwechete panguva yegirinhi. Iri pamusoro pekudzora kudonha panguva yekupfura kuisa iyo yekupedzisira simba uye, crucially, inodzorwa kunyungudika mune caustic bath gare gare. Vamwe varidzi vesilica-based cores vanoshandisa binder inosiya isina kusimba, ine magirazi chikamu, zvichiita kuti vatadze kubata kukuvara. Hunyanzvi chaihwo hwuri kugadzira chinhu chakasimba zvakakwana kuti chirarame kuvaka goko uye kudururwa, asi chinova chisina kusimba kekemikari kuti chibviswe pasina hukasha michina inogona kukuvadza madziro akatetepa.
Apa ndipo apo ruzivo nearoyi chaiyo inobhadhara. Kushanda ne nickel-based alloys, semuenzaniso, iwe unodzidza kuti vane hurefu hwekusimba renji uye yakanyanya kunyungudika fluidity. Iyo yakakosha inoda simba rinopisa rakasiyana-siyana kuti rirambe kupinda kwesimbi uye kukukurwa kwenguva refu. A general-chinangwa musimboti anogona kugeza kunze, achisiya rough mukati inouraya kuyerera kwemhepo muchikamu cheturbine. Iko kutadza chinyararire-unongozviona panguva yeX-ray kana kuyerera kuyedzwa.
Dhizaini: Iko Dzidziso Inosangana neiyo Foundry Floor
Mhando dzeCAD dzakakwana. Cores hazvisi. Mukaha mukuru uri mumakona ekunyora uye tsigiro. Vagadziri vanowanzoda zero dhizaini pane zvemukati maficha kuti awedzere aerodynamic kana hydraulic kunyatsoita. Asi core chinhu chinobatika chinofanirwa kuburitswa kubva mufa kana kudzvanywa mumudziyo. Takarwa izvi kwemakore. Kukanganisika kunowanzo kuve kushoma dhigirii, toti 0.5 kusvika 1 dhigirii, yakasanganiswa nehunyanzvi hwekushandisa core prints-izvo zvekuwedzera zvinowana nekumisa musimboti mune wakisi pateni uye gare gare goko.
Ndinorangarira dhizaini yakaoma yehutsi yehutsi yemhepo. The ceramic musimboti aiva nemaoko akati wandei matete, akavharwa nemakatani. Mukufananidza, yakanga yakagadzikana. Mukuita, panguva yejekiseni yewakisi muenzaniso wakaipoteredza, kumanikidzwa kwakakonzera kutsauka. Zvakaguma nei? Kusiyanisa kwemadziro kunopfuura kutsanangurwa. Kugadzirisa kwanga kusiri musimboti uri nani; yakanga iri kugadzirazve magedhi ejekiseni rewakisi uye kuwedzera zvitsigiso zvenguva pfupi zveceramic (zvakazobviswa mukukuya) kusimbisa core panguva iyoyo. Yakawedzera mutengo uye nhanho, asi yakachengetedza chikamu. Iyi ndiyo mhando ye Investment casting nuance yausingawani mumabhuku ekuverenga.
Imwe inoshanda musoro wemusoro ndeye core venting. Sezvo simbi yakanyungudutswa ichizadza mhango, mweya wakavharirwa mukati mepakati unofanira kubuda. Kana isingakwanise, kudzosera kumashure kunodzivirira kuzadza kuzere, kana gasi rinobatwa mukukanda. Isu tinochera maburi madiki munzvimbo dzisiri dzakakosha dzepakati, asi kuiswa kwavo hunyanzvi. Zvakawanda zvinonetesa musimboti; mashoma anokonzera kukanganisa. Iko kufona kwekutonga kwakavakirwa pahupamhi hwepakati uye geometry, kazhinji inonatswa kuburikidza nekudururwa kwekuedzwa.
Kudyidzana neMugadziri Wenyanzvi
Ichi hachisi chinhu chaunohodha kubva kukhathalogi. Iyo nzira yekusimudzira pamwe chete. Kwemakore, takatsamira zvakanyanya kune nyanzvi. Kambani yakadai Qingdao Qiangsenyuan Technology Co., Ltd. (QSY) inounza kukosha chaiko pano. Nemakore avo makumi matatu mukati shell mold casting uye Investment casting, vanonzwisisa iyo yose process chain. Paunokurukura nezve dhizaini navo, havasi kungofunga nezve musimboti uri wega. Ivo vari kufunga nezve mabatiro azvinoita negomba ravo system, yavo dewaxing autoclave, yavo yekudurura tsika. simbi isina tsvina maringe ne special alloy.
Ndakashanyira nzvimbo yavo kamwe chete, ndichiongorora chirongwa chemuviri wevharuvhu mune duplex simbi isina tsvina. Mwongo waive nehomwe yakadzika, nhete. Mainjiniya wavo akabva angotaura nyaya yaigona kubuda. Zano ravo raive rekuchinja zvishoma chikamu chehomwe uye kutsanangura imwe porous core kuumbwa munzvimbo iyoyo kuti ikurumidze kuparara kwemakemikari. Ndiko kufunga kwakabatana. Inobva pakuva ne CNC machining kugona mukati-mumba zvakare-vanogona kukurumidza kugadzirisa chishandiso chewax core inofa zvichibva pane mhinduro kubva mumiedzo yekutanga, kupfupisa yekuvandudza loop. Iwe unogona kuona maitiro avo pane yavo saiti pa https://www.tsingtaocnc.com.
Hukama hwacho hwakakosha nekuti kana musimboti waitwa, mutoro haupere. Pane chinyorwa chekutanga chekuongorora, kazhinji uchishandisa CT scanning kuenzanisa iyo yakadzingwa ceramic musimboti kune iyo CAD modhi, ichitarisa kukanganisa. Zvadaro pane maitiro ekugadzirisa core mujekiseni rewakisi. Nyanzvi mugadziri anowanzo kupa zvigadziriso kana akadzama maprotocol. A generic core supplier anongotumira bhokisi rezvikamu zvisina kusimba.
Kukundikana iData Point
Hausati washanda newe ceramic cores kusvikira wakundikana zvinoshamisa. Imwe inonamira pandiri yaive yepombi hombe yeindasitiri. Iwo macores aive makuru uye akaomarara. Vakapfura zvakaisvonaka uye vakapukunyuka kuvaka shell. Kudira kwe simbi yakakandwa zvakafamba zvakanaka. Dambudziko rakavapo panguva yekuzorora. Mwoyo wacho waisazobuda. Takaedza yakawedzera leaching, thermal shock, even ultrasonic baths. Zvimedu zvakaramba zvakasanganiswa mundima dzomukati. Iyo post-mortem yakaratidza nyaya: iyo yepakati binder yakanga yadyidzana nekusachena kwakati muvhu rinoshandiswa mune yekutanga slurry jasi regoko, ichigadzira yakasanganiswa ceramic interface pakupisa kwakanyanya. The core material yanga yakanaka. Iyo shell material yaive yakanaka. Asi mubatanidzwa wavo, pasi pemamiriro ezvinhu chaiwo iwayo, wakanga une ngwavaira.
Kukundikana ikoko kwakatidzidzisa kuti tigare tichiita bvunzo yekuenderana-kupfura chidimbu chidiki chepakati pakatarisana neiyo chaiyo shell slurry system yatinoronga kushandisa, tozotarisa kuti inonamatira. Inhanho iri nyore iyo ikozvino yakajairika mumaitiro edu. Zvakandidzidzisawo kuti mu Investment casting, chinhu chimwe nechimwe chikamu chehurongwa. Iwe haugone kukwenenzvera imwe mune vacuum.
Kumwe kukundikana kwakajairika, kwakanyarara ndiko kukukurwa kwedimensional. Musimboti unogona kunge wakakwana kune ekutanga zvidimbu zana, wobva watanga kuona maitiro akananga kumucheto wepamusoro wekushivirira. Kazhinji ndiyo midziyo - iyo dhizaini inoshandiswa kugadzira wax core - inopfeka pasi. Kana kuti inogona kunge iri shanduko isina kujeka mumhepo yekupfuta. Kubata izvi kunoda kuomarara kwehuwandu hwekuita kudzora, kuyera kwete kungokandira kwekupedzisira, asi iyo ceramic musimboti pamatanho akawanda. Zvinonetesa, asi zvinodzivirira njodzi inononoka kufamba.
Muripo Usina Kusukwa
Kana zvese zvasangana, iyo ceramic musimboti ndiyo inogonesa kukanda kusingabviri. Funga nezve turbine blade ine mhango ine migero yekutonhodza yakaoma kunzwisisa inotevedza mhepo yemhepo. Hapana imwe nzira inogona kuita iyo se-yakandwa yemukati geometry. Kukosha hakusi mukugadzira nzvimbo isina mhango; iri mukugadzira nzira yekuyerera yakanyatsogadzirwa inobvumira injini kuti imhanye zvakanyanya, zvine hungwaru. Ndiko uko mutengo wakakwira wekugadzira uye kugadzira aya macores unoruramiswa.
Kune kambani yakadai QSY, vane basa rinobva kumaindasitiri simbi yakakandwa zvikamu zvepamusoro-kushanda cobalt-based alloys, iyo yakakosha tekinoroji ibhiriji pakati pemisika iyi. Nheyo dzacho dzakafanana, asi zvikero zvekuuraya zvine hunyanzvi uye nesainzi yezvinhu. Iko kugona kubata iyo spectrum pasi pemba imwe ndiyo inoparadzanisa chitoro chebasa kubva kune yechokwadi engineering shamwari.
Saka nguva inotevera paunotarisa kune yakaoma mari yekukanda, rangarira isingaonekwe musana mukati. Izvozvo ceramic musimboti yakatanga sepapi, yaiumbwa, yaipiswa, yobatwa, yakakomberedzwa nenamo, yakanamwa, yaipiswa zvakare, yakanyura musimbi yakanyungudutswa, uye pakupedzisira yanyungudika. Kuvapo kwayo kwese chiitiko chechinguvana chechokwadi, chichisiya chete gomba rakakwana kumashure. Kuwana izvo hafu yehondo mukugadzira kukanda kusiri kungonaka, asi-kwakakodzera kubhururuka, kuisirwa-giredhi, kana mishoni-yakakosha. Haisi chibatiso chenzvimbo chete.
