Lapho onjiniyela bayacacisa ukutshala imali kwe-silicone sol foundry factory amakhono, abafuni nje umphakeli—bafuna ukuzinza kohlangothi ngaphansi kwengcindezi yokushisa, ukungaguquguquki kwe-microstructural kuzo zonke izindlu zephampu ye-cobalt alloy engu-50-kg, kanye nokungabekezeleli i-porosity emizimbeni yama-valve ye-AMS 5387. Lokho kuyiqiniso lokusebenza esikubona nsuku zonke kwa-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD.-umkhiqizi osekelwe e-Qingdao lapho "i-silicone sol" ingeyona i-buzzword; iwuhlelo lokuhlanganisa olubamba ukubekezelela kokuqedwa kwe-micron eyi-12 kumabhobho engxubevange ye-T800 ngaphambi kokukhipha i-wax.
Sesithumele izingxenye ezingaphezu kuka-17,000 ze-cobalt-nickel kusukela ngo-2019—ngasinye silandelelwa inqwaba, inombolo yokushisa, kanye nombiko wokuhlola we-CMM. Kuphrojekthi eyodwa ye-OEM ye-hydraulic yaseNyakatho Melika, indlu yesilinda sephampu ye-piston yehlulekile izikhathi ezintathu ngegobolondo le-silica-bonded yesiqhudelana naye: ama-microcracks akhiwe ngesikhathi sokudonswa kwe-steam ngenxa yokwanda okushisayo okungafani phakathi kwegobolondo le-ceramic kanye ne-T800 alloy core. Ukwakheka kwethu kwe-silicone sol, kwelashwe ku-180°C esikhundleni sika-120°C, kunciphise ukucindezeleka okuyinsalela ngo-41%—kuqinisekiswe ngokuhlaziywa kohlobo lwe-XRD lattice. Lokho akuwona umbono. Yingakho amakhasimende esithumelela imidwebo ye-GD&T-heavy ene-±0.015 mm yama-callouts eqiniso—futhi alindele ukugunyazwa kwesihloko sokuqala.
Yini ehlukanisa iqiniso ukutshala imali kwe-silicone sol foundry factory kusuka ku-caster wenhloso evamile? Okuthathu okungaxoxiswana ngakho: Okokuqala, ukulawula impahla eluhlaza. Sithola kuphela izingothi ze-cobalt alloy eziqinisekisiwe ze-AMS 5387 ezinemibiko egcwele yokuhlolwa komshini—hhayi nje izitifiketi zokuhambisana. Okwesibili, ukuqinisekiswa kobuqotho begobolondo. Iqoqo ngalinye legobolondo lihlolwa amandla okubamba ashisayo ku-1,150°C ngaphambi kokuthululwa. Okwesithathu, isiyalo se-post-cast geometry. Izingxenye ze-sand-cast ziyancipha ngokungalindelekile; ukulingwa kwe-investimenti kusetshenziswa i-silicone sol kuncipha phakathi kuka-±0.12%—kodwa kuphela uma ulawula ukunwetshwa kwephethini ye-wax, umswakama wokomisa igobolondo (≤35% RH), kanye namazinga erempu yokudubula. Singena sobathathu ngesikhathi sangempela.
- Ubungcweti bezinto ezidlula amashidi acacisiwe: Asigcini nje “ukucubungula” i-T800—siyazi ukuthi iphoyinti layo lokuncibilika i-eutectic lishintsha libe ngu-23°C lapho i-chromium yehla ngo-0.4%. Kungakho ama-thermocouples ethu omlilo akalwa nsuku zonke ngokumelene nezindinganiso ezilandelekayo ze-NIST.
- Awekho "ibhokisi elimnyama" ukwenza imishini: Yonke insimbi noma insimbi engagqwali iphuma iqonde ekuphumeni kwegobolondo iye ku-CNC—akukho ukwelashwa okuphakathi nendawo ngaphandle kokuthi kucacisiwe. Kungani? Ngoba imishini yethu yangaphakathi ye-5-axis ibamba ukunemba kokuma okungu-±0.008 mm kuzisekelo zephampu ezinobubanzi obungu-300-mm, isusa amaphutha okulungisa kabusha.
- Ukulandeleka okuqala ngaphambi kokuthulula: Inkatho ngayinye iphethe umaka onekhodi ye-QR oxhumanisa nezitifiketi zezinto ezibonakalayo, izingodo zokwakha amagobolondo, amajika okushisa athelayo, nemibiko yokugcina ye-CMM—konke kufinyeleleka kumakhasimende ngengosi evikelekile.
Abanye bangase baphikise i-silicone sol idlula kakhulu ekugijimeni kwevolumu emaphakathi. Kodwa cabanga ngalokhu: Umakhi wemishini kawoyela waseNingizimu-mpumalanga Asia wayedinga amayunithi angu-220 epulaki ye-cobalt alloy engajwayelekile. Abaqhudelana nabo bacaphune ukukhishwa kwesihlabathi—bese bengeza u-$14,000 wokulungisa iphethini ngemva kokukhukhuleka kwe-athikili yokuqala. Silethe ukugunyazwa kokuqala sisebenzisa amagobolondo e-silicone sol, anokwehluka kokuqina kodonga okubanjwe ku-±0.18 mm ezigabeni ezingu-120 mm. I-delta yezindleko? Iphakeme ngo-7.3% ngeyunithi ngayinye—kodwa ukusebenza kabusha kobunjiniyela ngo-100% okungaphansi, i-zero scrap, nokulethwa kwezinsuku eziyi-19 ngaphambi kwesimiso. Ukusakaza okunembayo akukhona mayelana nokugwema ukwenza imishini—kumayelana nokulawula ukuthi ukwenziwa kwemishini kwenzeka kuphi futhi kungakanani.
Bheka ikusasa: Sandisa amandla ethu e-silicone sol ukuze afake i-hybrid near-net-shape casting + ne-EDM enembile yamashaneli okupholisa angaphakathi emizimbeni yamavalvu anomfutho ophezulu—izakhiwo ezingenakwenzeka ukubhoboza ukusakaza okuthunyelwe. Kodwa okubalulekile kwanamuhla kusalokhu kungashintshile: ukuletha ama-valve okucindezela avala ibha engu-420 ngaphandle kokuvuza, izindlu zokumpompa ezisinda empilweni yamahora angu-15,000 ku-slurry e-abrasive, kanye nama-winch center shaft roller anokuqina kokuqina okuqinisekiswe imephu ye-Vickers encane. Uma uhlelo lwakho lokusebenza ludinga ubuqotho obuphindaphindwayo be-metallurgical—hhayi nje “ukusakaza ukuze uphrinte”—bese kwesokudla ukutshala imali kwe-silicone sol foundry factory ayichazwa yizithombe eziyisikwele noma okukhiphayo konyaka. Kuchazwa ngobubanzi obuncane bembotshana ingxenye yakho ebalulekile engakwazi ukubekezelela… kanye nenqubo yokuyala ukuyiqinisekisa.
