Masikhulume iqiniso, lapho abantu abaningi bezwa 'i-silica sol investment cast', bafanekisela ama-jet engine blade angenasici noma izingcezu zobuciko eziyinkimbinkimbi. Yilokho uhlangothi lobukhazikhazi. Iqiniso, ukugaya kwansuku zonke, kumayelana nokwenza igobolondo elithembekile elingaqhekeki, lingawohloki, noma ligcine umlotha omningi, ezingxenyeni ezivame ukungabonakali. Kuyinqubo lapho i-binder-i-silica sol-iyikho konke futhi akukho lutho ngesikhathi esifanayo. Umlingo awukho nje ku-silica ye-colloidal ngokwayo, kodwa endleleni oyishadisa ngayo ne-stucco, indawo yokomisa, futhi ngokungagwegwesi, ukuthi ukuphatha kanjani okulindelekile. Izitolo eziningi zicabanga ukushintshela ku-a i-silica sol investment casting inqubo iwukuthuthukiswa okuqondile kwayo yonke into. Akunjalo. Kuyithuluzi, futhi eliphelele lapho.
Umnyombo Wegobolondo: Ngaphezu Kwe-Binder Nje
Ngikhumbula lapho siqala ukuguqula imigqa ethile ukusuka ku-ethyl silicate kuya ku-silica sol. Intengo yokuthengisa yayimayelana nokuqedwa okungcono kwendawo kanye namandla aluhlaza aphakeme. Abazange bakugcizelele ngokwanele ukulawulwa kwesimo sezulu. Nge-ethyl silicate, une-leeway ethile. Nge-silica sol, indawo yakho yokomisa iba ipharamitha yenqubo ebalulekile. Umswakama ohlobene nokugeleza komoya akuzona nje izici zokunethezeka; banquma izinga lokugeleza kwe-sol. Ngokushesha kakhulu, futhi uthola ijazi lobuso elishwabene, eliqhekekile. Ihamba kancane kakhulu, futhi umjikelezo wakho wokukhiqiza uyama.
Lokhu sikufunde kanzima eqoqweni lama-valve eklayenti. Ukuqedwa bekukuhle, ukunemba kobukhulu bekubonakala kusobala, kodwa sibe nesilinganiso sokuhluleka kwamagobolondo esingu-30% phakathi nokukhipha i-waxing. Amagobolondo ayebukeka ephelele. Inkinga? Besine-spell esiswakeme, futhi amajazi ayisisekelo ayengakageli ngokugcwele ngaphambi kokuthi sifake amajazi ayisipele. Phakathi ne-autoclave dewaxing, umfutho wesitimu wathola lezo zingqimba ezibuthakathaka, ezigelide kancane. Umphumela waba ukuphuka kwegobolondo okuyinhlekelele, hhayi amanzi ahlanzekile e-wax esasiwadinga. Kwakungekona ukwehluleka kwezinto ezibonakalayo; kwaba ukwehluleka kolwazi lwenqubo.
Yilapho ubuchwepheshe bangempela bulele khona-hhayi ekuthengeni i-silica sol, kodwa ekwakheni uhlelo oluzungezile. Kumayelana nokwazi ukuthi ufulawa we-zircon wejazi lokuqala udinga i-sol elungiswa nge-pH ehlukile kunaleyo ongayisebenzisela amajazi e-stucco e-aluminosilicate kamuva. Kuyikhemistri ebekwe esikalini sezimboni.
Lapho Kukhanya Ngeqiniso (Nalapho Kungakhanyi khona)
Kuwo wonke amaphutha ayo, i-silica sol investment casting ayihlulwa kwezinye izinhlelo zokusebenza. Cabanga ngezigaba ezincanyana, amaphaseji angaphakathi ayinkimbinkimbi, noma ama-alloys asebenza kakhulu. Igobolondo le-ceramic le-monolithic olithola kunqubo ye-silica sol eyenziwe kahle liminyene ngendlela emangalisayo futhi liyaphikisa. Siyisebenzisa cishe ngokukhethekile emsebenzini wethu wengxubevange yezinga lokushisa eliphezulu—izinto ezisekelwe ku-nickel kanye ne-cobalt. Ukuzinza kwegobolondo emazingeni okushisa okuthela kuphakeme, okunciphisa ukusabela kwegobolondo lensimbi futhi kukunikeza indawo yensimbi ehlanzekile.
Bengibheka iphrojekthi evela kumphakeli, i-Qingdao Qiangsenyuan Technology Co., Ltd.(QSY), obala lokhu njengamakhono asemqoka. Ngeminyaka yabo engu-30 ekulingeni nasekukhiqizeni imishini, ungabheja inqubo yabo yensimbi engagqwali kanye nezinsimbi ezikhethekile zokusansimbi zincike kakhulu kusistimu ye-silica sol evuthiwe. Akuyona into odlala kuyo; kuwukuzibophezela. Ukuze uthole i-carbon steel knob evamile noma ubakaki wensimbi olula? I-Overkill. Izindleko nesikhathi somjikelezo asikuthetheleli lokho. I-ROI iza uma uphonsa impetha yensimbi engagqwali enama-vanes azacile kunohlamvu lwemali, lapho ukwethembeka kobukhulu kungaxoxiswana khona.
I-Machining Handshake
Leli iphuzu elivame ukugejwa. I ukutshala imali inqubo ayigcini ku-shakeout. I-Foundry enhle icabanga ngomshini kusukela ekuqaleni. Igobolondo le-silica sol livamise ukukhiqiza indawo ecolekile, okuzwakala kukuhle. Kodwa futhi kusho ukuthi isikhumba sokuphonsa siqinile futhi sifana kakhulu. Lokhu kuthinta indlela amathuluzi akho e-CNC asebenzisana ngayo nokusikwa kokuqala. Kudingeka silungise amanani okuphakelayo nezindlela zamathuluzi ezingxenyeni eziphuma kumugqa wethu we-silica sol uma kuqhathaniswa nezinye izinqubo zethu.
Ukusebenza okudidiyelwe okufana ne-QSY, okusingatha kokubili ukufakwa kwesikhunta segobolondo, ukutshala imali, kanye nomshini we-CNC ngaphansi kophahla olulodwa, kunenzuzo ehlukile lapha. Ithimba labo lemishini alikutholi ukulingisa ngebhokisi elimnyama; bathola ingxenye okungenzeka ukuthi bayawuqonda umlando wenqubo. Bayazi ukuthi insalela yesango ku-silica sol casting ingaba nephrofayili yobulukhuni ehluke kancane, ngakho-ke bangakwazi ukuhlela i-CNC ngokufanele. Le ndlela evaliwe ukusuka ekubunjweni kuya ekwenzeni imishini yilapho ikhwalithi yangempela nokusebenza kahle kwakhiwe khona, hhayi nje emnyangweni wokulingisa wodwa.
Uhlamvu Lwesihlabathi Emagiyeni
Ayikho inqubo engenasici. Ikhanda eliyinhloko eline-silica sol, ngaphandle kokuzwela kwesimo sezulu, ukuvuza kwegobolondo. Ukutubeka kubalulekile. Noma iyiphi insalela ye-silica binder ingashiya insalela eyingilazi, ene-sintered endaweni yokuphonsa, ikakhulukazi kuma-engeli aphinde angena. Lokhu akulona uhlamvu lwesihlabathi oluxegayo ongaluqhumisa; kuhlanganisiwe. Sake saba nenqwaba yezindlu zamaphampu lapho lensalela yayivaleleke emicu yangaphakathi. Kwakuyiphupho elibi ukulungisa, cishe kudinga ukususwa kwe-electrochemical.
Yilapho utshalomali lukhona ukutshala imali uthola okwangempela. Iphrofayela yakho yesithando somlilo esishisayo ayiyona isethi futhi ukhohlwe. Kudingeka ukuthi ihambisane nenqwaba yegobolondo kanye ne-alloy. Ukulingwa kwensimbi enesigaba esisindayo kudinga umjikelezo wokushisa ohlukile kune-aluminium enezindonga ezincane ukuze kuqinisekiswe ukususwa okuphelele kwe-binder. Olunye ungqimba lokulawula inqubo oluhlukanisa isitolo semisebenzi nendawo yokusungula enembayo.
Umbono We-Pragmatic
Ngakho-ke, ingabe i-silica sol iyikusasa? Ngobuqotho obuphezulu, izingxenye ezinembayo, ngokuphelele. Kuwumgogodla we-aerospace, ezokwelashwa, kanye nokulingisa kwezimboni ezisezingeni eliphezulu. Kodwa akuyona i-panacea yendawo yonke. Isinqumo sokuyisebenzisa kufanele sibe isibalo sobuchwepheshe nesokuhweba: indawo edingekayo yokuqeda (amanani e-Ra), ukuphinda kusebenze kwengxubevange, ingxenye yejiyomethri, nezindleko ezamukelekayo ngeyunithi ngayinye.
Lapho uhlola uzakwethu womsebenzi onjalo, awugcini nje ngokuthenga ukulingisa. Uthenga izingodo zabo zokulawula imvelo, amarekhodi abo okunakekela okunodaka, amashadi abo akhathele. Uthenga amashumi eminyaka wokuzijwayeza okugxilile, njengalokho ongakusho ku-opharetha osenesikhathi eside ekhona. Inani langempela kunqubo efana i-silica sol investment casting ayifakwa ebhange, kodwa enkumbulweni yemisipha ehlangene yochwepheshe nonjiniyela abaye balwa izimpi zayo, bafunda ekuhlulekeni kwayo, futhi basebenzise amandla ayo amakhulu ukukhiqiza izingxenye ezingeke zenziwe ngenye indlela.
