Uma iphampu yakho ye-hydraulic iqhekeka ku-450°C, noma umbhobho we-cobalt alloy wehluleka ngaphansi kokushaqeka okushisayo okujikelezayo, “imboni yezingxenye ezikwazi ukumelana nokushisa okuphezulu” iyayeka ukuba yisisho sokusesha—kuba umnqamulajuqu. Sikubonile ezinkontilekeni zesevisi yasezindaweni zikawoyela zaseNyakatho Melika, ekubuyiseleni kabusha kwamavalvu ase-Europe, nasezitshalweni zokukhipha usawoti emanzini aseNingizimu-mpumalanga ye-Asia: izinto ezingaphandle kweshalofu ziyabophela. Okubambayo akukhona nje ukumelana nokushisa—ukuvumelana kwensimbi, ukuzinza kohlangothi ngemva kokugibela ibhayisikili elishisayo, nokungabekezeleli iqanda lokuhlukaniswa kwesakhiwo esincane. Kungakho onjiniyela becacisa-hhayi nje izinto zokwakha-kodwa izinga lokushisa eliphezulu ukumelana nefekthri emva kwabo.
Ukusebenza komhlaba wangempela kuqala kudala ngaphambi komshini. Kwa-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., yonke ingxenye ye-AMS 5387 cobalt alloy iqala ngokulandeleka kwempahla eluhlaza okuqinisekisiwe—kwehle kunombolo yokushisa kanye nombiko wokuhlola wokugaya. Asizamukeli izitifiketi "ezihambisanayo"; siqinisekisa ukusatshalaliswa kosayizi wokusanhlamvu kumabhilidi angenayo sisebenzisa izivumelwano ze-ASTM E112. Kungani? Ngoba ukuchezuka okungu-5% ekuhlakazweni kwe-carbide kunganciphisa impilo yesevisi ngo-60% kumassemblies ephampu agqoke kakhulu. Kwenye iphrojekthi yakamuva yemoto yobunjiniyela baseJalimane i-OEM, ukuhlaziya kwethu kwangaphakathi kwe-spectral kubambe okuqukethwe kwe-nickel okuncane ku-T800 alloy batch—ngaphambi kokusakaza. Lokho kutholwa kuvimbele amarola e-shaft aphakathi nendawo angaphumelelanga angu-120 kumasistimu ewintshi asebenza ku-520°C ngaphezulu kwezinga lokushisa kanye nomthwalo wesikhashana ongu-120 MPa.
Ukuhlanganiswa okuqondile akuyona inkulumo-ze lapha—indlela esilawula ngayo okubaluleke kakhulu: ukuziphatha kokuguqulwa kwesigaba ngesikhathi sokupholisa. Izindlu ze-sand-cast iron zamaphampu e-piston zithola imijikelezo elawulwayo yokudonsela phansi ngaphakathi kwezindawo zethu zokushisa ukushisa ezisendaweni—hhayi eziphuma ngaphandle. Lokho kusho ukubala okungabikezelwa kwamanodule e-graphite (i-ASTM A247 Ikilasi 3), ubulukhuni obufanayo (220–260 HBW), futhi alikho i-warpage elidalwe ukucindezeleka eliyinsalela ngemva kokuqedwa kwe-CNC. Phakathi naleso sikhathi, ama-nozzles e-cobalt alloy e-investment-cast athola i-HIP'd (ukucindezela okushisayo kwe-isostatic) ngokushesha ngemva kokusakaza ukuze kuqedwe i-microporosity-okubalulekile lapho ukushuba kodonga kwehla ngaphansi kuka-2.3 mm kanye nokucindezela kokusebenza kudlula ibha engu-350. Amakhasimende ayabuza: “Ingabe ungakwazi ukubamba ±0.015 mm kusilinda sendlu engu-320 mm ngemva kwamahora angu-3 ku-480°C?” Yebo—ngoba siqinisekisa ama-coefficients okukhula okushisayo kumasampula ejiyometri ngaphambi kokukhiqizwa okugcwele, hhayi ngemva kwalokho.
Abanye bacabanga ukuthi amandla okushisa aphezulu avela kuphela kuma-alloys angaphandle. Kodwa sibona ukwehluleka okuningi okuvela ekubulaweni okungalungile kwe-GD&T kunekhemistri engalungile. Umzimba we-valve yokucindezela ungase usebenzise insimbi engagqwali engu-F22—kodwa uma indawo yaso yokuvala isihlalo ingenakho ukulawula ukuma kwangempela ngokuhlobene ne-stem bore, ukuvuza kukhuphuka ku-300°C. Yingakho ukuhlola kwethu kungaqhutshwa ngohlu lokuhlola. Yonke ingxenye ebalulekile ithola ukuqinisekiswa kwe-CMM ngokumelene nemodeli ye-CAD yasekuqaleni—hhayi nje ubukhulu besilinganiso—kanye ne-optical profilometry ebusweni obuvaliwe ukuze kuqinisekiswe u-Ra ≤ 0.4 µm ngemva kokudlula. Ezingxenyeni ezingajwayelekile ze-T800, sisebenzisa ukuqinisekiswa komjikelezo oshisayo: imijikelezo emithathu egcwele ukusuka ku-ambient ukuya ku-550°C, bese kuba ukuhlolwa okusebenzayo ngengcindezi elinganiselwe ephezulu. Akukho okuhlukile. Akukho ukuyekwa.
Uma ufuna ozakwethu befekthri abamelana nezinga lokushisa eliphezulu namuhla, bheka ngale kwezitifiketi odongeni. Buza: Ingabe bangabanikazi babo bezokwelapha? Bangakukhombisa izithombe ze-microstructure ezivela ku-AMS 5387 lot yenyanga edlule? Ingabe bazobuyekeza ngokuhlanganyela ama-callout akho e-GD&T ngaphambi kokucaphuna—futhi bahlabe umkhosi lapho ukubekezelelana okuqinile kunezela izindleko kodwa kungekho msebenzi? QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. isebenza ngale ndlela ngoba ukwethembeka akulethwa esitsheni sokuthumela. Yakhelwe kuyo yonke inombolo yokushisa, yonke indlela yamathuluzi, wonke amarekhodi okuhlola. Ngokuzayo lapho uhlelo lwakho lushisa, izingxenye zakho akufanele zivele ziphile—kumele zisebenze. Lokho kuqala ngokukhetha ukuthi ubani olawula okuguquguqukayo okubalulekile.
