Paunonzwa 'simbi chaiyo kukanda', pfungwa zhinji dzinosvetuka dzakananga kukudyara kwekudyara. Izvo hazvina kukanganisa, asi iwo mufananidzo usina kukwana unowanzo tungamira kune mis-spec'd zvikamu uye mutengo wakawandisa. Iyo chaiyo nyaya ndeyekusarudza maitiro akakodzera-shell mold, ceramic mold, investimendi-yeiyo chaiyo simbi giredhi uye yekupedzisira basa. Kudanwa kwekutonga, kwete bhokisi rekutarisa.
The Shell vs. Investment Dilemma muSimbi
Isu tinogadzika kuganda mold kune yedu yakawanda kabhoni uye yakaderera-alloy simbi zvikamu, kunyanya kana mavhoriyamu akakwira uye pamusoro pekupedzisira zvinodiwa zviri muRa 125-250 μin renji. Iyo yakasimba, inokurumidza, uye inodhura-inoshanda. Asi ndaona mapurojekiti achitadza nekuti mumwe munhu akasimbirira pakudyara kwekudyara kwebhuraketi rakareruka, achidzingirira isingaite yepasi pekupedzisira spec iyo yakawedzera 300% kumutengo uine zero inoshanda bhenefiti. Hunyengeri kuziva kana iyo yekuwedzera chaiyo iri kudiwa.
Semuenzaniso, isu taive nemutengi aida akateedzana eAISI 4140 yekubatanidza maoko. Madhirowa avo ekutanga aitsanangura kuisa mari. Mushure mekuongorora nzira dzekutakura uye nzira yekubatanidza, isu takaronga shanduko yekukandira magomba neyakagadzirirwa machining mvumo pane dzakakomba bore nzvimbo. Chikamu chakaita zvakafanana mukuyedza, uye mutengo weyuniti wakadzikira nepamusoro pe40%. Ndiro divi rinoshanda re'chaiyo'-ndeyekurova zvinofanirwa kushivirira, kwete izvo zvidiki zvidiki.
Apo isu zvachose kusundira zvizere simbi yakarurama kukanda kuburikidza nenzira yekudyara ine yakaoma, yakatetepa-yakakomberedzwa jiometri mumagiredhi senge 17-4PH kana 316L isina tsvina, kana apo as-cast pamusoro pekupedzisira yakakosha pakuyerera kwemvura kana kuneta kuramba. Dimensional consistency kubva pamhando yewakisi patani uye yakagadzika goko receramic harikundwe pane izvozvo. Asi kunyange zvakadaro, 'kururama' kunoenderana; uchiri kubata nesimbi shrinkage uye thermal dynamics, kwete mashiripiti.
Material ndiyo Make-or-Break Factor
Apa ndipo pane makumi emakore muchitoro. Kukanda plain carbon steel inyika imwe; kukanda high-nickel kana cobalt-based superalloys ndeimwe. Iyo 'chaiyo' mukuita inofanirwa kuverengera maitiro echinhu. Nechimwe chinhu chakaita seHastelloy X, tembiricha yekudurura, ganda preheat, uye chiyero chekutonhora chinoda kurongeka zvakasimba kudzivirira kubvarura kupisa uye kudzora chimiro chezviyo. Kutsauka kudiki pano hakungokanganisa zviyero - kunogona kukoromora zvinhu.
Isu takadzidza izvi nenzira yakaoma pakutanga nebheti yenickel-based alloy turbine seals. Zviyero zvaive zvakakwana, asi zvikamu zvakakundikana nguva isati yakwana mukukwira bhasikoro. Nyaya yacho yakadzokera kumashure kune yakanyanyisa hutsinye ganda dewaxing process yakagadzira micro-cracks, iyo yakazopararira panguva yekusimba. Iyo 'precision' yaingodzika ganda. Izvo zvakatimanikidza kubatanidza iyo metallurgical mhedzisiro mune yedu tsananguro yemaitiro nemazvo.
Ndicho chikonzero pa Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), nekumashure kwedu kunobata zvese kubva kune ductile iron kusvika kune yakakosha alloys, kusarudzwa kwezvinhu uye kuronga kwemaitiro hazviparadzanise. Iwe haugone kungotora simbi isina tsvina gating dhizaini woishandisa kune cobalt alloy. Nzira dzekudya, kusimuka, uye kutonhora zvinodiwa zvakasiyana zvachose kuti uwane kugadzikana, inova hwaro hwechero chaiyo chaiyo.
CNC Machining: Iyo Inodiwa Partner yekukanda
Chero ani anoti iwe unokwanisa kuwana mambure-chimiro chezvese zvakakosha maficha kuburikidza nekukanda chete ari kutengesa fungidziro. Chokwadi simbi yakarurama kukanda zvikamu, CNC machining ndiyo yakakosha yekupedzisa nhanho. Iko kukanda kunokuwana iwe 95% ipapo neiyo fomu yekutanga; machining anoburitsa ekupedzisira datum nzvimbo, tight-kushivirira bores, uye shinda. Synergy ndiyo yakakosha.
Nzira yedu yakabatanidzwa-kukanda uye kugadzira pasi pedenga rimwe-inogadzirisa pfungwa huru yemarwadzo: datum coordination. Kana tichigadzira simbi yakakandwa, tinowanzo shandisa mareferensi enzvimbo ayo isu pachedu takagadzira patani. Izvi zvinobvisa 'kunongedza zvigunwe' pakati pekuwanikwa uye muchina chitoro kana kushivirira stack-up kukaitika. Isu tiri muridzi wese process chain.
Muenzaniso unoshanda ndeye pombi yekugara yatinogadzira mu duplex simbi isina tsvina. Iyo as-cast body inopa yakaoma yemukati vholuti. Basa redu reCNC rinobva ragadzira zviso chaizvo zveflange, mabhoti maburi, uye shaft bore, kuve nechokwadi cheperpendicularity uye concentricity iyo yekukanda yega haingambofa yakavimbisa. Iyo chaiyo inovakwa kuburikidza nenzira iyi yakasanganiswa.
Uko Kwakanaka Kwakakwana ndiko Kurongeka chaiko
Kudzingirira kushivirira kwakanyanya pane zvisiri-akakosha maficha ndiyo inokurumidza nzira yekuridza bhajeti. Real-world engineering ndeye kugovera iko chaiko kwazvine basa. Ini ndinopedza nguva yakawanda nevatengi 'madhizaini zvikwata, kazhinji ndichikurudzira kuti vasunungure kushivirira kubva, toti, ± 0.5mm kusvika ± 0.8mm panzvimbo isiri yekusangana. Shanduko diki iyoyo inogona kushandura chikamu kubva pakuda inodhura ceramic mold kuenda kune yakanyatsokodzera goko mold process.
Izvi hazvisi zvekucheka makona; ndezvekushandisa zvine hungwaru. A textured as-cast surface inogona kugamuchirwa zvakakwana kune yakarongeka yemukati, kuchengetedza machining operation. Iyo chaiyo iri mukuita iyo chaiyo kukosha kutonga. Ndakaona mamwe mapurojekiti achibudirira nekutsanangura zvine hungwaru zvinodiwa izvi pane kutsanangura nzira yepamberi pamutsara wega wega wekudhirowa.
Inosungirirana kune yakazara-sevhisi modhi. Nokuti QSY inobata zvese kukanda uye machining, tinogona kupa zano risingarerekeri pamusoro pekukandira chimiro kune saizi uye nekusiya stock yekugadzira. Chinangwa chedu ndechekuunza chikamu chinoshanda, chakavimbika pamutengo wakakwana, kwete kutengesa nzira inodhura yekukanda iripo.
Kutarisa kune Yese process Chain
Chekupedzisira, kurongeka kwechokwadi mukukandira simbi ndiko kutonga kwakazara kwecheni: pateni yekushandisa, slurry control, kunyungudika tsika, kudurura, kupisa kupisa, uye kuongorora kwekupedzisira. Kukanganisa munzvimbo ipi neipi kunokanganisa kuedza kwese. Makore edu makumi matatu-pamwe anga ari ekuvaka zvidzoreso akasimba padanho rega rega, kwete kungotenga choto chitsva.
Semuenzaniso, kuchengetedza majekiseni anoenderana newakisi kwakakosha sekudzora tembiricha yesimbi. Wakisi yakatsveyamiswa patani inoburitsa yakamonyaniswa kukanda, zvisinei kuti simbi yako yakagadzirwa sei. Aya ndiwo maitiro ekumashure-e-zviratidziro anopatsanura vagadziri vanoenderana kubva kuzvitoro zvemabasa.
Pakupedzisira, simbi yakarurama kukanda haisi tekinoroji imwechete yaunohodha kubva kukhathalogi. Inyanzvi yekugadzira. Ndiko kusarudzwa kweruzivo rwemaitiro ekuumba anoenderana nechinhu uye dhizaini chinangwa, inoteverwa neinodiwa post-casting mashandiro kusangana nekupedzisira spec. Iko kurongeka kunowanikwa zvakanyanya mukuronga uye neruzivo-kwakavakirwa kutonga sezvakunoita mumidziyo. Ndizvo zvinoshandura kudhirowa pachidzitiro kuita chinhu chakavimbika, chepamusoro-chinoshanda mumunda.
