Kana vanhu vazhinji vakanzwa 'silica sol precision casting', vanofananidzira chinhu chisina chikanganiso, chine mambure, chagadzirira kuenda. Ndiyo yakanakisa yekushambadzira. Chokwadi, kugaya kwezuva nezuva, kutaurirana nguva dzose necolloidal chemistry, stucco application, uye fizikisi isingaregereri yesimbi solidification. Hazvisi zvekungogadzira mold; ndezvekuinjiniya mhango yenguva pfupi, ine ceramic-lined mhango inoita senge pasi pe1500°C simbi yakanyungudutswa. Zvitoro zvakawanda zvinogadziriswa pagiredhi resimbi yekupedzisira-iyo yakakosha, chokwadi-asi mukuona kwangu, hondo chaiyo inohwinwa kana kurasika mukamuri ine slurry uye dewaxing autoclave. Ndiko uko geometry inochengetedzwa kana kukanganiswa kusati kwadururwa donhwe rimwe resimbi.
Iyo Core Kusanzwisisa: Ingori Binder
Vazhinji vanobata silica sol seglue iri nyore, bhainda rekubata hupfu hwehupfu pamwe chete. Ndiko kuwedzeredza kune ngozi. Ihurongwa hwehupenyu. Iyo sol's viscosity, pH, uye SiO2 zvirimo hadzisi nhamba chete pane spec sheet; vanoraira kuti jasi rekutanga rinonyorovesa sei patani yewakisi, kuti rinobuda zvakaenzanirana sei, uye pakupedzisira, kupera kwepamusoro kwekukanda. Ndakaona mabhechi uko sol yaive 'chikuru' zvishoma, ichitungamira kune nekukurumidza gelling kuita neiyo ethyl silicate hardener. Zvakaguma nei? A brittle primary jasi iro rakatsemuka-pamuka panguva ye dewaxing, zvichikonzera kukanganisa kwevein pane imwe neimwe yekukandwa mukumhanya. Simbi yacho yaive yakakwana 316L, asi zvikamu zvacho zvaive zvimedu.
Apa ndipo pane basa rekutanga remutengesi. Iwe unoda mumwe wako anonzwisisa kuti zvinodyiwa zvine hunyanzvi semaitiro. Kambani yakadai Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), nemakumi matatu emakore ekuumbwa kwegoko uye kuisa mari, vanowana izvi mukati. Hazvisi zvekungokutengesa iwe silica sol; ndezvekuziva kuti kubudirira kwako silica sol precision casting maitiro anoenderana nekuenderana kweiyo mvura chaiyo. Kushanda kwavo kwenguva refu kunoratidza ruzivo rwakadzama, runoshanda neaya manuances ezvinyorwa, rudzi rwunouya chete kubva mukumhanyisa mitsetse yekugadzira gore negore.
Sarudzo yehupfu hwekuramba-yakasanganiswa silica, zircon, kana chimwe chinhu chakaita semullite-yakaroora maitiro eiyo sol. Zircon inoda yakasiyana sol viscosity pane yakasanganiswa silica yekunyudza kwakaringana. Kubatanidza. Iwe haugone kukwidziridza imwe uri wega. Takadzidza izvi nenzira yakaoma pane chirongwa cheiyo turbine blade prototype. Isu takachinjira kune yakatsetseka zircon hupfu kuti ive nani kubereka asi takachengeta dipping paramita zvakafanana. Iyo slurry yaive yakakora zvakanyanya, makona akavharwa, uye goko rakagadzira nzvimbo dzakadzika-simba. Makungu airamba achitsemuka panguva yekubata. Chidzidzo chinodhura mukufunga kwehurongwa.
Iyo Shell-Kuvaka Dhanzi: Layer-by-Layer Compromise
Kuvaka goko ndiko uko dzidziso inosangana neisiri chokwadi chepasi rechitoro. Chinyorwa chinoti 7-9 majasi. Asi kune gobvu-chikamu kukanda simbi? Iwe unogona kuda mamwe mabhachi ekuchengetedza simba, asi jasi rega rega rinowedzera kune njodzi yekuteya kushushikana panguva yekuomesa. Kune chikamu chakatetepa-chakakomberedzwa, chakaomesesa chesimbi, unogona kukoshesa mashoma, mabhachi akapfava kuti usazadze ruzivo. Iko kuwirirana pakati pesimba rakasvibirira, permeability, uye yekupedzisira dimensional iko.
Kuomesa pakati pemajasi ndiyo inonyanya kuderedzwa. Haisi nguva chete; ndezvekuyerera kwemhepo, humidity, uye kufanana kwetembiricha muimba yekuomesa. Kudhirowa kudiki kunogona kuita kuti rimwe divi resumbu riome nekukurumidza, zvichikonzera kushushikana kwekusiyanisa. Takambova nenyaya inodzokororwa nekutsemuka kwegoko kune rimwe divi remaraki edu ekuomesa. Zvakatitorera mavhiki kuti tizvitsvakire kuHVAC vent iyo yaigadzira micro-climate. Kugadzirisa kwanga kusiri mune slurry formula; yaive muhofisi manejimendi.
Stuccoing humwe hunyanzvi. Hukuru uye rudzi rwestucco-zvakare, zircon, fused silica, alumino-silicate-inotemesa porosity yegoko uye kuramba kupinda kwesimbi. Zvakanyanya kunaka, uye unodzipa kupukunyuka kwegasi panguva yekudira, zvichitungamira kune gasi porosity mukukanda. Yakakasharara, uye unowana mukati memukati wakakasharara izvo zvinogona kukonzera kupinda kwesimbi uye kupera kwakashata. Nokuda kwepamusoro-kupisa alloys QSY zvinyorwa, senge nickel-based uye cobalt-based alloys, ane yakakwirira kunyungudika uye kunyungudika kwakasiyana, iyo stucco zano rinogona kusimuka kuti rifarire yakakwirira refractoriness uye kupisa kwekutya kuramba. Chiitiko chavo pamhando yakafara yemidziyo, kubva simbi yakakandwa kusvika kune yakakosha alloys, zvinoreva kuti vakatogona kugadzirisa izvi.
Dewaxing: The High-Stress Moment
Iyi ndiyo yekutanga bvunzo yechokwadi yeganda rako. Yese iyo yakatsetseka yakaturikidzana yave kuda kuiswa nekukasira kuwedzera kupisa sezvo wakisi inonyungudika uye ichikura. Iyo autoclave's pressure uye tembiricha ramp rate yakakosha. Kukurumidza, uye hydraulic pressure yewakisi inotsemuka kunyangwe goko rakavakwa zvakanaka. Kunyanya kunonoka, uye unogona kuisa njodzi isina kukwana kubviswa wakisi, zvichitungamira kumoto uye kukanganisa kabhoni panguva yekuneta.
Isu takanga tine batch yematehwe emamwe mavharuvhu aigara achitsemuka pazasi pesprue. Makungu aitaridzika zvakanaka. Takaongorora zvinhu zvose—kutsvuka, kuomesa, stucco. Pakupedzisira, takatarisa wakisi pachayo. Mutengesi mutsva anga aine coefficient yakakwira zvishoma yekuwedzera kwekupisa. Deko, rakagadzirirwa chimiro chekuwedzera chewakisi, haraikwanisa kuve nekuwedzera kumanikidza. Mhinduro yaive yekushandura autoclave cycle, tichisuma mupfupi pre-pressure soak kupfavisa core wax isati yaputika chiutsi. Yakawedzera maminetsi matatu kutenderera asi yakachengetedza zviuru muzvimedu.
Kupisa & Kudira: Iko Ceramic Shell Inowana Kuchengeta Kwayo
Kusvirwa hakusi kungopisa zvisaririra zvewakisi. Zviri pamusoro sintering ceramic, kuvandudza simba rayo rekupedzisira rinopisa. Iyo rampu kusvika 1000 ° C+ inoda kudzorwa kudzivirira kuvhunduka kwekushisa. Chero kabhoni yasara kubva muwakisi inogona kugadzira mamiriro ekunze anodzikisira mukati megoko, ayo kune mamwe maaloyi semamwe simbi isina tsvina, anogona kukanganisa kemisitiri yepamusoro.
Ipapo kunouya kudira. Apa ndipo panoperera goko rakakosha. Simbi yakanyungudutswa inoyerera ichipinda, magasi anoda kubuda nemadziro egoko. Kana goko racho ranyanya kuomarara (kubva pakunyura-kunyudza kana kuti stucco yakanyanyonaka), gasi rinobatwa, richigadzira mapinho. Ndinorangarira basa repombi impeller mu duplex Stainless simbi. Makwati akanga akanaka, akakora, uye akasimba. Asi isu takanga tine 30% yekuramba gasi repamusoro. Nyaya yacho yakadzoserwa kumashure kweyechitatu neyechina jasi slurry, iyo yatakanga tamisa zvishoma kuti igadzikane, ichiita kuti ive yakanyanya kunaka uye kuderedza ma-inter-particle pores. A classic kesi yekuvandudza imwe pfuma (slurry kugadzikana) pamutengo weiyo yakakosha (permeability).
Kupedzisa & Iyo Chaiyo-Nyika Benchmark
Uchapupu huri muimba yekukuya. Ingani stock inoda kubviswa? Yakagadzirwa zvakanaka silica sol precision casting process inofanirwa kuburitsa zvikamu zvinoda kupera kushoma. Nzvimbo yekubvisa gedhi inofanirwa kuve yakachena, kwete kubvarura chunk yechigadziko chekukanda. Nzvimbo yacho inofanira kunge yakachena zvakakwana zvokuti kune zvimwe zviso zvisingakoshi, chiedza chegirazi-bead blast chinokwana. Iyi ihombe inochengetedza mutengo, kunyanya kune yakaoma alloys senge cobalt-yakavakirwa iyo yakaoma kumushini.
Iri ibasa rakabatanidzwa rinounzwa nemupi wesevhisi yakazara. Hakusi kungoita goko nekudira simbi. Ndiyo kukosha kwese cheni, kubva pakugadzira patani kusvika kukupedzisira CNC machining. Kutarisa QSY's scope-inosanganisira shell mold casting, investment casting, uye CNC machining-zvakagadzirirwa kudzora kuyerera kwese uku. Ivo vanogona kugadzira maitiro ekukanda vaine machining mundangariro, vachikwenenzvera nzvimbo dzemagedhi ekucheneswa kushoma, inova mukana wakakura wezvinhu zvakaomarara. Webhusaiti yavo, https://www.tsingtaocnc.com, inoratidzira nzira iyi yakabatanidzwa, ichivaisa sechigadziro chezvikamu zvakapedzwa, kwete kungokanda mbishi.
Mukupedzisira, silica sol precision casting iketani yezana sarudzo diki. Imwe neimwe - kubva pa pH ye sol kusvika kune ramp rate muchoto chekupisa - inosiya chigunwe pachikamu chekupedzisira. Zvitoro zvinobudirira hazvisi kungotevera resipi; vari kuverenga magoko, kududzira pakatsemuka, uye vachigara vachigadzirisa maitiro. Musanganiswa wezvakadzama zvinhu sainzi uye maoko-pamusoro, anenge intuitive, shopu pasi craft. Chinangwa chacho hachimbofi chakakwana; zvinofanotaurwa, zvinodzokororwa kunaka, batch mushure mebatch. Uye izvo zvinongouya kubva panguva mumigero, kubata nekunyorova kwemwaka wemonsoon kana batch idzva rejecha refractory rinoita zvishoma zvakasiyana.
