Vanhu vazhinji pavanonzwa 'precision casting foundry', vanofananidzira masimbi asina chaanopomerwa, anopenya kubva mubhurocha. Ndiyo yekutanga kusanzwisisa. Chokwadi chiri pamusoro pekudzora kukanganiswa - kutonga kupisa, kushushikana, uye hunhu hwenyama nenzira inokuswededza pedyo neiyo yakanaka sezvinobvira mune zvekutengesa. Haasi mashiripiti; iko kugaya kwenzira yekudzora.
Iyo Shell Game: Kupfuura Ingori Jecha
Tora shell mold casting. Zita racho rinoita kuti riite seriri nyore, sekunyika patani mujecha nenamo. Asi dhiyabhorosi ari muceramic slurry kuumbwa uye kugoverwa kwezviyo zvejecha re stucco. Tora viscosity zvisizvo nemasekonzi mashoma pamukombe weZahn, uye ukobvu hwegoko rako hunenge husingaenderani. Ndakaona mabheti apo rimwe divi regoko rakanga rakakwana, rimwe racho rakaputsika panguva yekudonha nekuti jasi rekutanga harina kubatana zvakanaka. Ihwo hunyanzvi hwekubata-unodzidza kutonga slurry nekudonha kwainodonha, kwete chete nebepa re data.
Apa ndipo pane basa renhoroondo refu. Kambani yakadai Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), nemakore anopfuura 30 ekukandira uye kugadzira, ingangove yakapisa nezviuru zvezviumbwa zvine tsvina. Vangangove vakagara pamusanganiswa wevaridzi unoverengera Qingdao's chaiyo humidity swings, izvo zvinogona kukanganisa kuomesa kutenderera. Hauzvitore kubva muchitoro chitsva.
Muedzo chaiwo une macore cores. Kune yemukati inotonhorera ndima mumutumbi wevharuvhu, iyo yepakati inoda kumira nesimbi kudzvanywa asi ichiramba ichiputsika kuti ibviswe. Isu takamboshandisa yakajairwa silica jecha musimboti webasa resimbi isina tsvina. Iyo simbi yakapinda mukati, ichigadzira fused mess yakatora mazuva eEDM kuti abvise. Kugadzirisa? Kuchinjira kune zircon jecha musanganiswa kune yakaderera yekupisa kwekuwedzera. Shanduko diki yezvinhu, mutengo wakakura wekuponesa unodziviswa.
Investment Casting: The Wax uye The Wait
Investment casting ndiye mwana weposter yechokwadi, asi gomba rayo guru inguva. Yese yakatsetseka yeceramic shell inoda kuoma zvakakwana. Rumbidza, uye unowana kuputika kweutsi panguva yekudirwa-kunonzi 'shell kuputika'-kuchikusiya uine mold izere nemarara esimbi uye ceramic shrapnel. Nguva yekutenderera ndiye mukuru, kwete murongi.
Wax pattern assembly imwewo art form. Kune turbine blade cluster, kusonerera kwemagedhi ewakisi kunoitwa nemaoko. Mushandisi ane mudziyo unopisa anobata wakisi; inopisa zvakanyanya, uye inonyungudusa mucheto mutete webadza; kutonhora zvakanyanya, uye weld haina kusimba, inotungamira kune pateni dhizaini panguva yekuvaka shell. Hunyanzvi hunotora makore. Ndinoyeuka ndichishanyira chivako chepasi apo mucheki wewakisi akanakisa aigona kuita 72-pattern muti muhafu yenguva yemubhadharo mutsva, pasina rework. Kubudirira ikoko kunoshandura zvakananga kubereka.
De-waxing inhanho yakakosha, inowanzofuratirwa. Mutoo wekare waive kupfurwa nemwenje, uko kunoisa panjodzi yekutsemuka kwegoko. Ikozvino, yakanyanya kukwirisa masevhisi, kusanganisira ayo ane akabatanidzwa CNC machining kufanana neQSY, shandisa yakakwira-kudzvanya steam autoclaves. The trick ndiyo pressure-temperature curve. Inoda kunyungudusa wakisi kubva mukati kunze isingakonzere kuvhunduka. Webhusaiti yavo, tsngtaocnc.com, inotaura nezvebasa ravo rine nickel-based alloys. Aya maalloys anowanzo aine zvakaomesesa zviyo zvechimiro zvinodiwa, zvichireva kuti pre-cast mold tembiricha inofanirwa kuve chaiyo. Iyo isina kukanganisa de-wax iyo micro-inotsemura goko inogona kukonzera simbi kupinza, kukanganisa kupedzisa kwepamusoro uye kuita post-cast machining inotyisa.
Zvinhu Mutemo
Iwe haugone kutaura nezve a precision casting foundry pasina kupinda mukati memetallurgy. Carbon steel, stainless-vanoita zvakasiyana. Asi iyo yakakosha alloys ndiyo inoedzwa hunyanzvi chaihwo. Tora cobalt-based alloys, seStellite. Dzinodirwa patembiricha yakanyanyisa uye dzine tsika yakashata yekuumba nhanho dzakaoma, dzakaoma kana dzakatonhodzwa zvisizvo.
Takava neprojekti yerin'i isingapfeki seal. Kudhinda kwacho kwaida kuomarara kweRockwell C. Madiro ekutanga, achishandisa nzira yekutonhodza yakajairwa, angave akapfava kana kutsemuka. Nyaya yaiva yekupisa kwe mold. Taifanira kugadzira ma plates echinyakare — emhangura inoiswa muforoma — kuti iome simbi, ichimanikidza kuti itonhore kubva pachikamu chakakosha kuenda kunze. Yakashanda, asi yakawedzera mazuva maviri kunguva yekugadzira mold. Uku ndiko kutengeserana kunogara kuripo: kunyatsoenderana nemutengo maringe nenguva yekutungamira.
Apa ndipo panokosha nhoroondo yemutengesi. Kuda kwekambani kushanda nenickel-based alloys ndechimwe chinhu, asi kuva nerogi yekubudirira kudururira kwezvikamu munzvimbo dzine hukasha (funga kemikari pombi impellers) ndechimwewo. Zvinoreva kuti vakagadzirisa gating uye kusimuka matambudziko akasiyana neaya alloys 'shrinkage mapatani.
CNC: Iko Kukandwa Kunosangana Nechokwadi
Hapana chikamu chakakandwa chiri zvechokwadi 'net-shape' mupfungwa yepamusoro-soro. Ndiko kwakabatanidzwa CNC machining zvinova zvisina kutaurirana. Mukana wakakura wekuwanikwa une-mumba machining ine mhinduro. Kana machinist anodhiraivha mukukanda uye akawana nzvimbo yakaoma kana pasi pevhu pore, iyo ruzivo inodzokera yakananga kuchikwata chinonyungudika.
Ndinorangarira bhechi remabhuraketi esimbi. Vaigadzira zvakanakisa kunze kwekona imwe chete pamativi ese pairira chombo. Yakazove shanduko shoma muyero yekutonhodza mukona iyo ye mold, ichigadzira nzvimbo yenzvimbo yepamusoro pearlite yezvinhu. Chikwata chekuwana chakagadzirisa zvimbi zvekutonhodza pane mold, uye dambudziko rakanyangarika. Pasina machining pasi pedenga rimwechete, iyo loop yemhinduro inotora mavhiki.
Kune yakasimba senge QSY, inopa zvese kukanda uye machining zvinoreva kuti vanogona kudzora datum. Ivo vanogona kukanda mapedhi ekutsvaga kana imwe stock munzvimbo chaidzo vachiziva chaizvo kuti CNC yavo inozobata sei nekucheka chikamu. Iyi synergy yakakosha kune akaomarara geometries uko machining marevisheni anofanirwa kuve mashoma asi akanyatso yunifomu kudzivirira kucheka mumadziro.
Kukundikana Kunodzidzisa
Nguva dzinonyanya kudzidzisa dzinobva kuzvinhu zvisiri kufamba. Pakutanga, takanga tine chivimbo zvakanyanya mune yekufananidza software yekusimbisa. Takamhanyisa simulation yeimba yebhuronzi valve, uye yairatidza kudya kwakakwana. Iwo chaiwo ma castings aive nehombe shrinkage cavities mugobvu flange. Iyo simulation haina kuverengera mutsauko kudiki mune yedu alloy chaiyo yekupisa yekupisa. Takarasa batch. Tinodzidzei? Simulation igwara kwete muporofita. Iwe uchiri kuda kucheka yekutanga-chinyorwa kukanda, chikamu payo, etch icho, uye tarisa zviyo. Hapana chinotsiva kuedza kunoparadza.
Kumwe kukundikana kwakajairika ndeye over-engineering maitiro. Takamboedza kushandisa ultra-high-purity argon purge yekunyungudutsa simbi isina tsvina kuderedza inclusions. Yakashanda, asi mutengo wekuwedzera waiva 300%. Chikamu chaisachida; standard degassing yakanga yakakwana. Iyo yekufungidzira yaive yepombi yemaindasitiri, kwete chikamu chemuchadenga. Kuziva nguva 'yakanaka zvakakwana' ichokwadi 'yakakwana' pakushandisa inyanzvi yekutonga inoparadzanisa yakawana ruzivo kubva kune yedzidziso.
Saka, chii chinoita akavimbika precision casting foundry kufanana? Haisi iyo ine bhurocha rinopenya zvakanyanya. Ndiyo inogona kutsanangura, muchidimbu, kuti sei vachishandisa imwe tembiricha yekudira 17-4PH isina tsvina, kana magadzirirwo avanoita miti yavo yewakisi kuderedza kusagadzikana kwealuminium. Ndiyo iyo webhusaiti, seQSY's, inonyora zvakananga kugona kwayo kwekutanga-shell mold casting, Investment casting, machining, uye rondedzero chaiyo yezvinhu—pasina zvirevo zve hyperbolic. Inopa pfungwa yekudzokororwa pamusoro pezvishamiso. Mukutengeserana uku, ndiko chete kurongeka kunonyanya kukosha.
