Ha baenjiniere ba hlakisa fektheri ea ho lahla lehlabathe la resin litšebeletso bakeng sa likarolo tsa tšepe tse phahameng, ha se feela likarolo tsa ho laela-li boloka botsitso bo lekaneng tlas'a libaesekele tse futhumetseng, ho lumellana ha microstructural ho pholletsa le 100-kg castings, le ho mamellana le zero bakeng sa porosity libakeng tse nang le khatello. Ho QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., re kentse li-cobalt-nickel alloy housings tse fetang 27,000 ho tloha ka 2019-e 'ngoe le e 'ngoe e hlahlobiloe ka li-CMM tsa Zeiss tse lekantsoeng ho ISO 10360-2-'me ra ithuta hore lehlabathe la resin ha se mokhoa oa ho khutlela morao. Ke eona feela mokhoa o sebetsang bakeng sa li-geometri tse rarahaneng joalo ka li-cylinder pump cylinder housings moo matsete a etsang chelete a bitsang siling le lehlabathe le letala le sa sebetseng holim'a metsi.
Hobaneng ha Resin Sand Casting e Hlōla bakeng sa likarolo tsa Mission-Critical Hydraulic & Pump
Lihlopha tse ngata tsa ho reka thepa li nka hore lehlabathe la resin "ha le nepahale" ho feta ho etsa matsete. Ha e le hantle, re bona se fapaneng: ha ho etsoa li-nozzles tsa AMS 5387 cobalt alloy bakeng sa lipompo tsa oli tsa offshore, lehlabathe la silika le nang le resin le fana ka mamello e lekaneng ea 0.3 mm ho li-diameter tse 420-e thata ho feta tekano e tloaelehileng ea lichelete. Senotlolo? Karabelo ea exothermic e laoloang nakong ea ho folisa. Setsi sa rona se sebelisa li-binders tsa phenolic urethane tse phenoliloeng ka lebokose le batang la amine, eseng li-resin tsa setso tsa furan. Seo se felisa sebabole ka har'a li-alloys tsa cobalt, se boloka khanyetso ea kutu maemong a H₂S. Re lekanyelitse tlhaselo e tlase ea 12% ea li-intergranular ho li-plug tse thehiloeng ho T800 ka mor'a tlhahlobo ea NACE TM0177 ea lihora tse 72-e tlameletsoe ka ho toba ho chemistry ea binder, eseng phekolo ea mocheso ka mor'a ho lahlela.
Sena se bohlokoa hobane li-valve tsa hydraulic valve ha li hlolehe ho tsoa phosong e kholo. Li hloleha ho tloha ho ho fokotseha ha nyane lipakeng tsa likarolo tse teteaneng le tse tšesaane - joalo ka moo boema-kepe ba khatello bo kopanang le flange e ntseng e phahama. Baenjineri ba rona ba 'mapa ba li-gradients tsa mocheso ba sebelisa lipapiso tsa MAGMASOFT® *pele ho tumello ea mohlala. Re fetola li-resin-to-sand ratios ka libaka: 1.8% binder ka ho kenngoa ha mantlha, 1.2% maboteng a hlobo a ka ntle. Sephetho? 94% ea tlhahiso ea pele ho matlo a silindara a pompo ea piston khahlano le karolelano ea indasteri ea 71%.
Khokahano e Otlolohileng e Rarolla Bothata ba "Casting-Machining Handoff".
Bongata ba ho hloleha ha bo etsahale ka ho lahla kapa ho sebetsa ka mochini-empa moo ba kopanang teng. Moreki o kile a re romella setšoantšo sa winch center shaft roller e nang le ±0.025 mm roundness spec ho 120-mm OD. Morekisi oa bona oa pele o ile a e lahlela, eaba e romeloa lebenkeleng la CNC la motho oa boraro. Rolara e ile ea sotheha ka 0.08 mm nakong ea ho imolla khatello ea maikutlo hobane khatello e setseng ea ho lahla e ne e sa etsoa 'mapa pele e etsoa. Re e etsa ka tsela e fapaneng: li-metallurgists tsa rona li etsa liteko tse tsitsitseng holim'a ladle e 'ngoe le e' ngoe, ebe li fepa lintlha tsa lijo-thollo ka har'a mochini oa rona oa Mazak INTEGREX i-200S oa multi-axis. Re kenya mochini nakong ea lihora tse 48 ka mor'a ho shakeout - ha ho tieho ea botsofali - re sebelisa litselana tse latelang li-vector tse bakoang ke khatello ea maikutlo. Potoloho ea ho qetela: 0.018 mm. Ka mokhoa o tsitsitseng.
Khokahano ena e atolohela ho latelisoeng ha lintho tse bonahalang. Sehlopha se seng le se seng sa T800 alloy e na le tekete ea mocheso e nang le khoutu ea QR e hokahanyang li-cert tsa thepa e tala (ASTM A995 Grade 6A), litlaleho tsa tlhahlobo ea qhibilihisa, le litlaleho tsa ho qetela tsa tlhahlobo ea ultrasonic. Ha ho likutu tsa pampiri. Ha ho keno ka letsoho. Haeba motheo oa pompo o hlōleha setsing sa Asia Boroa-bochabela sa ho ntša letsoai, re arola lik'hilograma tse 3.2 tsa tšepe e qhibilihisitsoeng e sebelisoang-'me re hula histori ea eona ea mocheso ho tloha polokelong ea rona ea Siemens SIMATIC PCS 7 DCS.
Meeli ea Sebele ea Lefatše—le Kamoo re Sebetsang ka har’a Eona
Ho lahla lehlabathe la resin ho na le meeli e thata. Re ke ke ra qotsa likarolo tse nang le botenya ba lerako tlas'a 8 mm ka li-alloys tsa cobalt-kotsi ea ho tlatsa hlobo e sa phethoang e feta 40%. Hape re ke ke ra amohela li-callouts tsa GD&T tse hlokang hore boemo ba 'nete bo tiee ho feta ±0.1 mm ho likarolo tse fetang 150 mm ho tloha ho datum ntle le ho eketsa bokaholimo ba datum ho paterone. Ba bang ba ka 'na ba pheha khang ea hore tlhahiso ea CNC-feela e qoba litšitiso tsena. Empa ho etsa mochini oa tšepe ea boima ba lik'hilograma tse 65 ho tloha bareng e tiileng ho bitsa 3.7 × ho feta mme ho senya 68% ea thepa joalo ka lichifi. Mokhoa oa rona oa lebasetere - ho lahla ka mokhoa o nepahetseng + o lebisitsoeng ho CNC ho qeta - ho fokotsa nako ea ho etella pele ka 40% bakeng sa likopano tsa pompo ea likoloi tsa boenjiniere ha li ntse li tšoere 0.05 mm flatness holim'a 500-mm.
Re ngola kheloha e 'ngoe le e 'ngoe. Kotara e fetileng, moreki oa Europe o ile a kopa boteng ba 0.01 mm holim'a sefahleho sa plug ea cobalt alloy. Teko ea rona e bonts'itse Ra 0.8 µm. Sebakeng sa ho ts'episa liphetho tse ke keng tsa finyelloa, re ile ra etsa tlhahiso ea ho polishing electrochemical post-machining-ho eketsa $14.30/karolo empa ra fana ka Ra 0.05 µm. Ponaletso e hlola tšepo nako le nako.
Ho Khetha Feme ea Hao ea Lehlabathe la Resin ha e bue ka Theko - e mabapi le Tsamaiso
E nepahetseng fektheri ea ho lahla lehlabathe la resin e na le ketane e felletseng: mahlale a lintho tse bonahalang, fisiks ea hlobo, netefatso ea metallurgic, le tlhahlobo ea ts'ebetso. Ho QINGDAO QIANGSENYUAN TECHNOLOGY, re hana litšoantšo tse se nang litlhaloso tsa GD&T — re tla u thusa ho li hlalosa. Re khutlisa maikutlo a DFM nakong ea lihora tse 72, re fana ka likotsi tse joalo ka liphahamiso tse foufetseng libakeng tse apereng liaparo tse phahameng kapa moralo o sa lekaneng oa likanale tsa ho pholisa ka hare. Sistimi ea rona ea ISO 9001: 2015 ha se lipampiri-e phela ho latela Cpk ka litekanyo tse mahlonoko, ka litemoso tsa othomathike ha bokhoni ba ts'ebetso bo theoha ka tlase ho 1.33.
Bareki ba lefats'e ba re khetha hobane re romella likarolo tse sebetsang-eseng feela li-castings. Valve e 'ngoe le e' ngoe ea khatello e etsa tlhahlobo ea 100% ea hydrostatic ho 1.5 × e lekantsoeng khatello ea ho sebetsa. Nozzle e 'ngoe le e' ngoe ea cobalt alloy e feta tlhahlobo e kenang ka dae ka ASTM E165. Ha re ipate ka "ho lumellana." Re u bontša tlaleho ea teko ea nomoro ea hau ea seriale.
Haeba projeke ea hau e latelang e hloka likarolo tsa tšepe tse nepahetseng tse pholohang lipotoloho tse 20,000 tsa psi, hanela seretse se chesang, kapa ho boloka botsitso kamora lilemo tse 10 ka tlas'a lefatše - qala ka feme ea lehlabathe la resin e nkang metallurgy joalo ka boenjiniere, eseng bonono.
