Vanhu vazhinji pavanonzwa 'precision casting,' vanobva vangofunga nezvezvikamu zvisina mhosva, zvakaita mambure zvinobuda kubva muforoma. Ndiko kushambadzira kwakanaka, asi chokwadi chiri pauriri hwechitoro ndechekutaurirana nguva dzose pakati pemaitiro enyama, geometry, uye mutengo. Iro izwi pacharo rinounganidza akati wandei akasiyana nzira, uye yakajairwa indasitiri gomba iri kuvabata sevanochinjika. Ndakaona mapurojekiti achiparara nekuti mumwe munhu akatsanangura general 'precision casting' asinganzwisise kana ivo vainyatsoda kutendeka kwedimensional. Investment casting ye turbine blade kana kana yakaitwa zvakanaka shell mold casting inogona kubata imba yakaoma yepombi pane chikamu chenguva yekutungamira uye mutengo. Kurongeka hakusi muzita chete; iri muhurongwa hwekutonga pachinhanho chega chega, kubva patani yekutanga wakisi kusvika pakurapa kwekupedzisira kupisa.
The Core Divide: Investment vs. Shell Mold
Ngatitorei zvakananga. Mune ruzivo rwangu, sarudzo pakati pezviviri izvi ndiyo yekutanga huru forogo mumugwagwa. Investment casting, iyo yakarasika-wax process, ndiyo yekuenda kune yakanyanya kuoma uye kupera kwepamusoro. Funga zvikamu zvemuchadenga zvine zviteshi zvekutonhodza zvemukati zvisingaite muchina. Asi heino kubata kunoshanda: peteni yega yega wakisi inobayirwa. Kune diki batch yezvikamu zvakakura, iyo pateni inodhura yega inogona kurambidza. Ndinoyeuka imwe prototype ichimhanya yemuviri wevharuvhu yemugungwa apo mutengi akashamiswa newax tooling quote. Taitofanira kuvadzidzisa masvomhu—zvaingova nemusoro nokuda kwevhoriyamu yavo yavaifungidzira.
Ukuwo, shell mold casting inoshandisa patani inogona kushandiswazve, kazhinji simbi. Iyo chaiyo yakaderera pane yekudyara, asi kune akawanda maindasitiri ekushandisa, inopfuura kukwana. Kubatsira chaiko chiyero. Iwe unogona kugadzira mazana ezviumbwa pazuva kana patani yaiswa pandiro. Ndakashanda nezvitoro zvakaita seQingdao Qiangsenyuan Technology Co., Ltd. (QSY) pamapurojekiti akadai. Nemakore avo makumi matatu ekukandira uye kugadzira, vakagona hunyanzvi hwekusundidzira kushivirira kwegomba, kazhinji vachiwana padhuze-net-chimiro chezvikamu zvakaita se hydraulic manifolds, izvo zvinobva zvaenda zvakananga kuCNC bays yavo yekupedzisa bhora. Kubatanidzwa uku ndiko kunoita kuti pave nemusiyano.
Kusarudzwa kwezvinhu kunowedzera kuomesa sarudzo. Investment casting inobata ayo anonyengera ma superalloys-nickel-based, cobalt-based-zvirinani nekuti ganda receramic rinokwanisa kumira tembiricha yepamusoro yekudurura uye mold haiunze zvinosanganisirwa zvine chekuita nejecha. Yesimbi isina tsvina yekugadzira chikafu chikamu, shell mold casting nejecha rakavharwa neresin rinogona kunge rakachena. Ndakadzidza izvi kuburikidza nekutadza: takamboedza kukanda 17-4 PH isina tsvina chikamu tichishandisa goko rakagadziridzwa kabhoni simbi. Kugedhe kwakange kwakashata nekuda kwemvura, uye takapedzisira tave nekusawirirana. Ndaifanira kushandura kune investment kune iyo alloy kuti iwane zvakanaka.
Dhiyabhorosi ari mu Pre-Production Details
Apa ndipo panowanikwa 'chaizvo', nguva refu simbi isati yadirwa. Zvinotanga nemuenzaniso. Nekudyara, iyo wax jekiseni paramita-tembiricha, kudzvanywa, kutenderera nguva-inoraira yekupedzisira dimensional kugadzikana. Mucherechedzo mudiki wekunyura pawakisi unova chinhu chikuru chekukora mudhuri musimbi. Isu tinopedza mazuva tichikodzera hutsva hwewakisi, kuyera zvinyorwa zvekutanga nemaCMM, kwete macalipers chete.
Pakuumbwa kwegoko, ndiyo dhizaini yemaitiro uye maitiro ekuvaka-ganda. Pateni isina kukwana dhizaini inogona kuburitsa kubva mugoko, asi inobvarura kumeso kwejecha, zvichitungamira kune yakaoma yekukanda pamusoro. Huwandu hwekuputira dips uye stucco application inosarudza goko gobvu uye kusimba. Kunyanya kuonda, uye unoisa panjodzi yekuputsika (kukanganisa, kukundikana kune ngozi); wakanyanya kukora, uye unorasikirwa nepermeability, zvichitungamira kune gasi kukanganisa. Hunyanzvi hwekubata-bata-bata vane ruzivo vanoziva kuti goko rakagadzirira nekurira kwarinoita kana rabatwa.
Simulation software ndeye godsend ikozvino, asi haisi chirevo. Isu tinoishandisa kufanotaura nzvimbo dzinopisa uye shrinkage, asi iwe uchiri kufanira kusimbisa nemiedzo yepasirese. Ndinoyeuka ndichitevedzera kuzadza imba yakaoma yealuminium. Iyo software yakati yakanaka. Yekutanga kukanda yakavharwa nechando. Nyaya yacho? Iyo simulation yakashandisa yakanakira fluidity kukosha, asi yedu chaiyo batch yealloy yaive nepamusoro zvishoma magnesium zvemukati, izvo zvakashandura viscosity. Isu takagadzirisa tembiricha yekudurura ne15 ° C zvichibva pane hunch yeforomani, uye yakashanda. Chidzidzo: software inozivisa, asi ruzivo rwevanhu mumamiriro ezvinhu eimwe nzvimbo maitiro anowanzo gadzirisa.
Material is not a Generic Selection
Kudoma simbi isina chinhu hakuna zvakunoreva. Tiri kutaura 304 ye general corrosion resistance, kana 316 yenzvimbo dzechloride? Kana kuti ndiyo 17-4 PH yekunaya kwemvura? Imwe neimwe inobata zvakasiyana panguva yekusimba. Nickel-based alloys, kufanana neInconel 718, imhuka yavo pachavo. Vanowanzoita rusarura uye vanoda zvakasimba kudzora kutonhora mitengo mushure mekukanda. Chitoro chinongotaura kuti vanokanda ma superalloys chinogona kunge chisina mhepo inodzorwa yevira kana ruzivo rwekurapa kwekupisa kuendesa chikamu chine chinodiwa michina zvivakwa.
Apa ndipo apo kugona kwemudiwa-sevhisi kwakakosha. Kambani yakaita seQSY, iyo inonyora special alloys kufanana necobalt uye nickel-yakavakirwa mune yavo repertoire, haisi kungonyungudutsa. Vari kureva kutonga pamusoro pese kutenderera kwekupisa. Ndakashanyira zvivakwa zvinokandira zvakanaka maInconel zvikamu, kuti zvingotsemuka panguva yekurapa kwemhinduro nekuti chiyero chekukwira chakanyanya kukurumidza. Kutendeseka kwechikamu-chakakandwa chikamu chakanaka chete sedanho rayo rekupedzisira kupisa kupisa.
Kune simbi yakakandwa uye kabhoni simbi, zvinonetsa zvinoenda kune graphite kuumbwa uye pearlite yemukati. Iyo inoculation tsika yesimbi, kana iyo aruminiyamu inouraya yesimbi, maminetsi maitiro ekugadzirisa ane hukuru hwekukanganisa machinability uye simba rekupedzisira. Haugoni kungotenga simbi woidira; iyo chemistry inonyatso kutungamirirwa mu ladle. Urwu ndirwo rutivi rusina kunaka, rune hutsinye rwekurongeka risingambogadziri bhurocha.
Kubatanidzwa neCNC Machining: Iyo Isingagone Kutaurirana Link
Mashoma chaiwo akakandwa ari 'net-shape' kune ese maficha. Kunenge nguva dzose kune datum face, yakaoma bore, kana tambo yakarukwa inoda machining. Kubatana pakati peiyo foundry nechitoro chemuchina kwakakosha. Kana iyo yekukanda maitiro isina kugadzirwa uine machining mupfungwa, iwe unogadzira hope dzinotyisa.
Nyaya huru ndeyekuenderana datum nzvimbo uye yakakwana machining stock. Iyo yakanaka yekutanga inozopa 'cast-on' datum zvinangwa kana pads. Iyo huru, senge yakasanganiswa mashandiro, ichaita yavo CNC programmers kubvunza panguva yekugadzira mold chikamu. Ivo vanove nechokwadi chekuti gedhi nekusimuka hazvikanganise nekugadzirisa muguyo. Ndakaona kukanda kwakanaka kunoitwa kusashanda nekuti iyo chete nzvimbo yakati sandara yekusungirira yaivewo nzvimbo yekusimudza hombe, ichisiya isina nzvimbo yakachena yevise.
Uyezve, kushushikana kwakasara kubva pakukanda kunogona kukanganisa kukanganisa panguva yekugadzira. Chikamu chinogona kushivirira pakucheka kwekutanga, wobva wapfava zvinoshamisa pane yechipiri pass sezvo kushushikana kwemukati kunorerutswa. Mupi akabatanidzwa anoita zvese kukanda uye CNC machining pasi pedenga remba, senge QSY's modhi inoratidza, inogona kubata izvi. Vanogona kuita dhizaini-yekurerutsira pakati pekukasira uye kupedza kupfuura, chimwe chinhu chine hurongwa uye mune zvehupfumi chinonetsa kana zvikamu zvichifanira kuenda kune mumwe mutengesi.
Kukundikana Ndivo Vadzidzisi Vakanakisisa
Iwe haudzidzi nemazvo kubva munyaya dzebudiriro. Iwe unodzidza kubva kune scrap bin. Ndichangotanga basa rangu, takanga tine mapombi ebhuronzi airamba achiratidza porosity munzvimbo yacho. Nzvimbo dzakanaka, asi kuongororwa kwe ultrasonic zvakavatadza. Takapomera simbi, choto, kuparadza gasi. Mushure memavhiki, mumwe murume wekare akaona kusapindirana kushoma mumapepa eceramic mumusangano wewakisi. Yakanga ichikonzera kushanduka kusinganzwisisike mukati panguva yekuvakwa kwegomba, zvichigadzira kudzorwa mukuyerera kwesimbi kwakatungamira kune microshrinkage. Iyo gadziriso yaive 0.5mm redhizaini yekudhinda geometry. Kushivirira kwakaturikidzana kubva wakisi kuenda kuceramic kuenda kusimbi hakuregereri.
Imwe yemhando yekutadza maitiro mukati Investment casting 'kutsenga'—mitsetse yakanaka panzvimbo yokukanda. Izvo zvinokonzerwa nekupisa kwekuputika kweganda receramic. Masikirwo acho ndeekuita kuti goko riwedzere. Takaedza izvozvo. Zvakaita kuti tsinga iwedzere nekuti goko rakakora rinogadzira kushushikana kwakanyanya kwemafuta. Mhinduro yacho yaive yekugadzirisa slurry kuumbwa kuti iwedzere kupisa kwegoko rekuvhunduka uye kudzora dewaxing autoclave kutenderera zvakanyanya. Dzimwe nguva iyo counterintuitive kugadzirisa ndiyo chaiyo.
Zviitiko izvi zvinoumba kutonga kwenyanzvi. Pandinoongorora chikamu chitsva chekudhirowa izvozvi, ziso rangu rinoenda nekukasira kumadziro ukobvu shanduko, zvinogona kupisa nzvimbo, uye kugona kwekutsigirwa kwepakati. Iko kunzwa kwemukati kwakavakirwa pazvikanganiso zvekare. Ndiyo 'chaiyo' yausingakwanise kudhawunirodha kubva mubhuku rekushandisa; ndiko kuunganidzwa, dzimwe nguva kunorwadza, kucherechedzwa kwemuenzaniso kweziso rinoitwa.
Kutarisa Mberi: Kuri Kunanga Kwacho chaiko
Ramangwana harisi rekungoshivirira kwakasimba - ndezvekufanotaura uye nesainzi yezvinhu. Tiri kuona kudiwa kwakawanda kwedigitized process mafingerprints. Yese batch yematehwe, kupisa kwese kwealloy, yega yega parameter yakadhindwa uye yakabatana kune yekupedzisira NDT mhinduro. Iyi data igoridhe yekufungidzira kunaka kwekutonga.
Kugadzirwa kwemaHybrid zvakare kwave pedyo. Kushandisa yekuwedzera kugadzira (3D kudhinda) kugadzira yakananga ceramic molds kana macores ekukandira ekudyara inobvumira majeometri asingagoneke nemaitiro echinyakare. Izvi zvinodzima mutsetse pakati pekukanda nekudhinda. Dambudziko richange riri kuwana iyo imwechete metallurgical kutendeseka uye kupedzisa kwepamusoro sechinyakare chakadirwa kukanda, asi mukana weimwe-imwe, yekupedzisira-yakaoma zvikamu zvinokatyamadza.
Pakupedzisira, precision casting process ramba uri hwaro hwekugadzira tekinoroji kwete nekuti iwo anopenya, asi nekuti anochinjika zvakanyanya uye anodhura-inoshanda pahuwandu. Hunyanzvi chaihwo huri pakuziva kuti ndeupi mutsauko wekushandisa, nzira yekuitungamirira kuburikidza neyakasiyana-siyana, uye maitiro ekubatanidza iyo isina musono neyechipiri mashandiro. Hunyanzvi hwakangofanana nesainzi, zvakasiiwa kune avo vakapedza makore vachiteerera ruzha rwegoko riri kuumba uye vachidzidza mapatani ari mutsvina. Kunyura kwakadzama mukugona kwakananga kubva pateni kusvika pakupera chikamu, iyo portfolio kune yakagara yakamira nyanzvi senge Iyo kambani Qingdao Qiangsenyuan Technology Co., Ltd. inogona kupa maonero ekongiri ekuti misimboti iyi inoshandiswa sei pamidziyo kubva kusimbi yakakandwa kusvika kune nickel alloys.
