Uma uzwa 'i-silicon mold casting', ingqondo ivamise ukugxuma iqonde kuma-trinkets we-resin wezinga elincane noma ama-prototypes e-hobbyist. Lokho kuwumbono oyiphutha ovamile, futhi obeka umkhawulo ngokungagwegwesi. Esimweni semboni, ikakhulukazi uma usebenza namajiyometri ayinkimbinkimbi ezingxenyeni zensimbi ezisebenzayo, indima ye-silicone—qaphela i-'e', into yezinga lezimboni—ihluke kakhulu. Akuwona umkhiqizo wokugcina kodwa ithuluzi elibalulekile, elivame ukuxoxwa kancane, elingumxhumanisi. Okuhlangenwe nakho kwami kuthinta kokubili isisekelo esinembayo kanye nesitolo semishini, futhi ngibone amaphrojekthi amaningi kakhulu ekhubeka ngokuphatha inqubo yokwenza isikhunta njengokucatshangelwa kwamuva. Iqiniso liwukuthi, ikhwalithi yesikhunta sakho se-silicone isho ngokuqondile ikhwalithi yephethini ye-wax, yona echaza ukubunjwa kwensimbi kokugcina. Yenza isinyathelo sokuqala sibe sibi, futhi wenza ama-machining scrap.
Ibhuloho Le-Silicone: Ukusuka kumodeli ye-3D kuya kuphethini ye-Wax
Asikhulume inqubo. Asiphonsi insimbi ngokuqondile ku-silicone. Lowo umehluko obalulekile. Ekwenziweni kokutshalwa kwezimali, okuyibhizinisi lethu eliwumgogodla I-Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), isikhunta se-silicone sisetshenziswa kuphela ukukhiqiza amaphethini we-wax. Ukulandelana kuwukuthi: imodeli eyinhloko (ngokuvamile i-3D ephrintiwe noma eyenziwe ngomshini) -> isikhunta se-silicone -> umjovo we-wax encibilikisiwe -> ukuhlanganiswa kwephethini ye-wax -> isakhiwo segobolondo le-ceramic -> ukuchithwa -> ukuthululwa kwensimbi. Isikhunta se-silicone siyi-replicator. Ukunemba kwayo, ukuphela kwendawo, nokuqina kwayo kunquma ukuthi amaphethini wakho we-wax athembeke kangakanani ekwakhiweni kwasekuqaleni. Ngichithe amahora amaningi ngixoxa ngobulukhuni boShore nabahlinzeki bezinto ezibonakalayo—i-20A ethambile ingase ithwebule imininingwane emangalisayo kodwa iguge ngemva kokudutshulwa okungu-50, kuyilapho i-40A ingase ihlale izikhathi ezingu-300 kodwa ibe sengozini yokudabula ama-undercuts ajulile. Ayikho impendulo yendawo yonke, kuphela uchungechunge lokuhwebelana olususelwe engxenyeni yejometri nevolumu.
Ikhanda elilodwa elikhethekile ukuvaleka komoya. Uma uthela i-silicone phezu kwenkosi eyinkimbinkimbi enamaphakethe ajulile noma ukwakheka okuhle, amabhamuza omoya ayizitha. Sizame wonke amaqhinga: amabhodwe okucindezela, amagumbi okususa umoya, futhi nokuxubha ngokucophelela ungqimba oluncane lwe-silicone kumodeli kuqala. Indlela egcine ngokuchofozwa uchungechunge lwama-impeller prototypes ihilela ukuthela okuyingxenye ezimbili kanye netafula lokutshekisa elakhiwe ngokwezifiso. Bekuyinqubo exakile, ephindaphindayo, kodwa ithole ukubalwa kwebhamuza kwehle kuze kufike kuziro. Lolo uhlobo lokuxazulula izinkinga ongeke uluthole encwadini yokufunda. Ungabona eminye yemiphumela eyinkimbinkimbi yalesi sigaba sokwenza iphethini ezifundweni zecala esizeni sethu ku https://www.tsingtaocnc.com.
Ukukhethwa kwe-silicone ngokwayo kuyisayensi. Sisebenzisa kakhulu amasistimu okwelapha eplatinamu ekuncipheni kwawo okuphansi kanye nokukhiqizwa kabusha okuhle kwemininingwane, ikakhulukazi izingxenye ezizophonswa kamuva. insimbi engagqwali noma ama-alloys asekelwe ku-nickel. Ukwelapha ithini ishibhile, kodwa izinkinga zokuvimbela kanye nokushwabana okuphezulu kungaveza ukuchezuka okuba kukhule engxenyeni yokugcina yensimbi. Ngomsebenzi wevolumu ephezulu wengxenye ye-hydraulic ngonyaka odlule, empeleni senze i-prototype ngakho kokubili. Isikhunta se-platinum-therapy sikhiqize amaphethini we-wax abamba ukubekezelelana okungu-±0.1mm, kuyilapho iqoqo le-tin-cure likhukhuleka. Izindleko zangaphambili beziphezulu, kodwa zonga imali eningi ngesikhathi sokusebenza kwemishini esezansi nomfula ukuze kulungiswe amaphutha.
Lapho Isikhunta Sihlangana Nensimbi: I-QSY Workflow
Umlando wethu weminyaka engu-30 ekulingiseni nasekukhiqizeni imishini awukona nje ukuba nemishini; imayelana nokuthuthukisa ukugeleza komsebenzi okuxhunyiwe. I ukubunjwa kwe-silicon mold inqubo yamaphethini isandulela esithule, esihlanzekile segumbi leqiniso elinomsindo, elivuthayo le-Foundry. Iphethini ye-wax eyenziwe ngesikhunta se-silicone esiphelele izoba nesiphetho esingaphezulu esihumusha ngokuqondile kugobolondo le-ceramic. Iphethini emahhadlahhadla, enezigodi esuka kusikhunta esingesihle isho ukuthi uqala inqubo yegobolondo ngendlela engalungile, ngokuvamile okuholela emithanjeni noma ekufakweni ekubunjweni kokugcina. Sifunde ukuhlola amaphethini we-wax ngokuhlolisisa okufanayo nengxenye yokugcina eyenziwe ngomshini.
Kulapho ukuhlanganiswa nemishini ye-CNC kuba okungaxoxiswana khona. Ngisho nokusakazwa kokutshalwa kwezimali okuphelele, izingxenye eziningi ezisebenzayo zidinga izindawo zokukhwelana ezinembayo, izintambo, noma ama-bores abekezelelana ngokuqinile. Umzimba wama-valve esisanda kuwenzela iklayenti uyisibonelo esihle. Iphethini ye-wax eyenziwe nge-silicone yakha amaphaseji angaphakathi ayinkimbinkimbi angeke akwazi umshini. Ngemuva kokuphonsa insimbi engagqwali eyi-duplex, umnyango wethu we-CNC wathatha izintambo, walungisa ubuso be-flange nezihlalo zamavalvu kuze kube sekugcineni kuka-Ra 0.8. I isikhunta se-silicon vumela i-geometry; Imishini ye-CNC iqinisekise ukusebenza. Inqubo eyodwa ithobela enye; kumele basebenze ngokubambisana.
Ukwehluleka kunguthisha ongcono kunempumelelo. Ekuqaleni, saba nephrojekthi yochungechunge lwezinhlaka zamazinyo ze-cobalt-chrome alloy. Ijiyomethri yayidlulele, inamamajini amancane amancane. Indlela yethu yokuqala yokubumba i-silicone yasebenzisa umklamo ojwayelekile we-block mold. Umphumela? Amaphethini we-wax ahlala ephuka ngesikhathi sokubunjwa. Isixazululo bekungesona i-silicone engcono, kodwa idizayini yesikhunta ehlukile—isikhunta esinezingxenye eziningi, esinokhiye esidambisa ngokucophelela ingcindezi ngesikhathi sokukhishwa kwe-wax. Yengeze usuku enqubweni yamathuluzi kodwa yasusa u-100% wokulahlekelwa kwephethini. Leso sifundo sayishintsha kakhulu indlela esibhekana ngayo nesakhiwo sesikhunta ngezici ezithambile.
Izinto Ezibalulekile: Ngaphezu Kwensimbi Nensimbi nje
Ngenkathi siphatha inala insimbi kanye ne-carbon steel, izimfuno ze ukubunjwa kwe-silicon mold amaphethini aba bucayi nakakhulu ngama-alloys akhethekile. Uma usebenzisana nezinto ezibizayo njengama-superalloy asekelwe ku-nickel we-aerospace noma ama-alloys e-cobalt agqoke kakhulu embonini yokudla, izindleko zokusansimbi ezilahliwe akuyona nje insimbi—isikhathi esilahlekile kanye neshejuli yokukhiqiza ephukile. Ukuzinza kwe-dimensional kwesikhunta sakho se-silicone kubaluleke kakhulu ngoba lawa ma-alloy ngokuvamile anezindawo zokuncibilika eziphezulu kanye nokuziphatha okuqinile okuhlukile, okungakhulisa noma yikuphi ukungapheleli okuncane okuvela esigabeni se-wax.
Ngikhumbula i-prototype egijima i-turbine blade ku-Inconel. Abalingisi abambalwa bokuqala babonise ukukhukhuleka okuncane kwe-dimensional kuphrofayela ye-airfoil. Asiyilandeli emuva egobolondweni le-ceramic noma ukuthulula, kodwa ekwandeni okushisayo okungenakulinganiswa okubunjiwe kwe-silicone phakathi nesigaba sokujova i-wax yokucindezela okuphezulu. Isikhunta ngokwaso sasihlanekezela ngaphansi kwezimo zokukhiqiza, into engazange ibonakale ekuhlolweni okuthelwe ngesandla. Kudingeke ukuthi sishintshele ekwenziweni kwesilicone yokuqina kwezinga lokushisa eliphezulu futhi silungise ijika lengcindezi yomjovo we-wax. Bekuwukusebenzelana okucashile, okubiza kakhulu phakathi kwezinto ozifunda kuphela ngokuphindaphinda okubuhlungu.
I-takeaway lapha ukuthi ukucacisa i-silicone yesikhunta akucacile ngokungenathemba. Udinga ukucabanga ngokwalo lonke iketango: izinga lokushisa lomjovo we-wax kanye nokuncipha, izinga lokushisa lokuthululwa kwe-alloy, kanye nokubekezelelana kokugcina okudingekayo. I-mold material ingumhlanganyeli osebenzayo ohlelweni, hhayi isitsha sokwenziwa.
Izingibe Ezisebenzayo Nemininingwane Engakhulunywa
Ngale kwamaphepha edatha, kukhona amaqiniso asezingeni lesitolo. I-Silicone inempilo yebhodwe, futhi ukuhlanganisa amaqoqo amakhulu esikhunta esikhulu kuwumjaho wokulwa nesikhathi. Ngike ngaba yingxenye yeqembu elithulula ngokuxhamazela njengoba impahla iqala ukujiya, ngazi ukuthi ukuthela ngokuphuthuma kungase kusho injoloba engenamsebenzi. Ukukhipha umoya kungenye indlela yobuciko. Uwabeka kuphi ama-vents ukuvumela umoya ukuba uphume ngaphandle kokudala ukukhanya kuphethini ye-wax? Sivame ukungeza izimbobo zobumba zesikhashana ngesikhathi sokuthululwa kwe-silicone, bese siwamba kamuva ukuze sakhe iziteshi eziphelele. Kuyimanuwali, cishe ikhono lokuqopha.
Bese kuba nesondlo. Isikhunta esihle se-silicone singakhiqiza amakhulu amaphethini we-wax, kodwa siyehlisa. Imunca umswakama ovela emkhathini, isabela kancane kancane nezinye izithasiselo ze-wax, futhi ikhathale ngomshini. Sinesistimu yokugawula isikhunta sethu—isibalo sesibhamu, imiphumela yokuhlola ebonakalayo, nobukhulu obulinganisiwe besampula yephethini ye-wax njalo emijikelezweni engu-50. Le datha isivumela ukuthi sibikezele impilo yesikhunta futhi sihlele ukulungiswa kwamathuluzi ngaphambi kokuba ikhwalithi yehle. Lesi siqondiso sokusebenza yisona esihlukanisa isitolo semisebenzi nomnikezeli onokwethenjelwa ofana ne-QSY.
Okokugcina, ungakubukeli phansi ukubaluleka kwemodeli eyinhloko. Uma i-3D-printed master yakho inemigqa yesendlalelo, isikhunta sakho se-silicone sizoyithwebula, futhi iphethini yakho ye-wax izoba nayo, futhi igobolondo lakho le-ceramic lizoba nayo, futhi ukusakaza kwakho kwensimbi engagqwali kokugcina kuzoba nayo. Kwesinye isikhathi, kubiza kakhulu ukwenza umshini oyinhloko we-aluminium ukuze uthole isikhunta se-silicone yevolumu ephezulu, ukuze uthole leyo ndawo yokuqala ebushelelezi. Ukuhlaziywa kwezindleko zenzuzo okwenzeka ekuqaleni kwawo wonke amaphrojekthi.
Isiphetho: Kuyithuluzi, Hhayi Inhlamvu Yomlingo
Ngakho, ukuphetha lokhu, ukubunjwa kwe-silicon mold kumongo wokukhiqizwa kwengxenye yensimbi yezimboni kuyisinyathelo esiyinkimbinkimbi, esibheka imininingwane ohambweni olude. Ubuchwephesha obuvumela ukutshala imali, ikakhulukazi izingxenye zevolumu ephansi kuya kokumaphakathi kuzo zonke izinto ukusuka kunsimbi ewugqinsi kuya kuma-superalloy. Impumelelo yayo incike kusayensi yezinto ezibonakalayo, ukwakheka kwesikhunta, ukulawula inqubo, kanye nokuqonda okujulile kwalo lonke uchungechunge lokukhiqiza olulandelayo.
Umgomo awukona nje ukwenza isikhunta se-silicone. Umgomo uwukukhiqiza ukusakazwa okungaguquguquki, okuthembekile okuphezulu kwamaphethini we-wax avumela ukubunjwa kwensimbi okubikezelwe, kwekhwalithi ephezulu. Uma ubambisana nomkhiqizi, awugcini nje ngokuthenga imishini yabo; uthenga lolu oluqoqiwe, oluvame ukuzuzwa kanzima, lokucubungula ulwazi. Lelo inani langempela—uhlobo lobuchwepheshe obuhlanganisiwe esilakhe e-Qingdao Qiangsenyuan ngaphezu kweminyaka engamashumi amathathu, lapho isitolo samaphethini, indawo yokusungula, kanye nesitezi se-CNC kukhuluma ulimi olufanayo lobuchwepheshe.
Ekugcineni, kuya phansi ekuhlonipheni inqubo. Isikhunta se-silicone iyithuluzi elithobekile, elivame ukunganakwa. Kepha kuphathe njengokucatshangelwa kwamuva, futhi kuzoba iphuzu elilodwa lokwehluleka kuphrojekthi yakho. Inikeze ukunakwa okudingayo, futhi iba ibhuloho elithembekile, eliphindaphindwayo phakathi komklamo wakho kanye nengxenye yensimbi esebenzayo.
