Ha baenjiniere ba hlakisa silika ea ho kenya chelete bakeng sa likarolo tsa tšepe tse nepahetseng, ha ba khethe mokhoa feela-ba khetha tiiso ea botsitso ba tekanyo, botšepehi ba holim'a metsi, le ho lumellana ha metallurgic tlas'a maemo a feteletseng a tšebeletso. Ho QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., re kentse linomoro tse fetang 12,000 tsa likarolo tse ikhethang re sebelisa silica sol-boholo ba li-alloys tsa cobalt-nickel tse kang AMS 5387 le T800-moo ho mamellana ha ± 0.05 mm e seng sepheo; ke motheo.
Hobaneng ha silica sol—eseng khalase ea metsi kapa samente—e fana ka nepo e ka phetoang
Bareki ba bangata ba nka "ho kenya chelete" ke mokhoa o le mong. Ha se. Sistimi ea binder e hlalosa meeli ea ts'ebetso. Silica sol e sebelisa silika ea colloidal (SiO₂ nanoparticles e emisitsoeng metsing) e le eona e kopanyang ka sehloohong. Viscosity ea eona e tlase e kenella ka lintlha tse ntle; refractoriness ea eona e phahameng e mamella mocheso oa 1,550 ° C bakeng sa li-superalloys. Lisebelisoa tsa likhalase tsa metsi li phunyeha tlas'a mocheso oa mocheso. Mefuta ea polasetiki e senya ka holimo ho 600 ° C-e senya microstructure matlong a pompo a thehiloeng ho cobalt.
Re bone bareki ba tloha khalase ea metsi ho ea ho silica sol ka mor'a hore lihlopha tse tharo tse latellanang li hlolehe ho etsa liteko tsa khatello ho 420 bar. Sesosa sa ho qala? Li-microcracks leboteng la khetla, ha li bonahale ka pono empa li netefalitsoe ke SEM fractography. Likhetla tsa silika sol ha li bontše liphoso tse joalo-esita le li-vanes tse botenya ba 0.3 mm likopanong tsa turbine nozzle. Ke ka lebaka leo feme ea rona ea silica Sol casting e nang le setifikeiti sa ISO 9001: 2015 se nang le traceability e felletseng ho fihlela mocheso o mongata, kabo ea boholo ba likaroloana tsa seretse, le taolo ea phoka nakong ea ho omisa.
Khokahano e otlolohileng ha se ho bapatsa — ke kamoo re ts'oereng ±0.03 mm matlong a 300-mm cylinder
Barekisi ba bang ba fana ka lisebelisoa tsa ho etsa likhetla, ho lahla le ho etsa machining. Re etsa tsena tse tharo setsing se le seng se lumellanang le ISO Qingdao. Ke hobane’ng ha hoo ho le bohlokoa? Hobane ntlo ea silinda ea pompo ea piston e hloka katoloso e ts'oanang ea mocheso lipakeng tsa khetla, alloy, le sebopeho sa CNC. Ha ho etsoa le ho sebetsa ka tlas'a marulelo a le mong, re lekanya li-probes tsa CMM khahlanong le libaka tsa datum-e seng mehlala ea CAD ea khopolo-taba. Re lekanya li-vector tsa shrinkage ka batch ea alloy, ebe re lokisa litselana tsa lisebelisoa pele u seha.
Mohlala: AMS 5387 cobalt alloy e honyela ka 1.82% ka mokhoa o tšoanang mefuteng ea silica sol—empa feela ha phoka e lula ka tlase ho -25°C nakong ea ho omisa la ho qetela. Re rekota potoloho e 'ngoe le e' ngoe ea ho omisa. Haeba mongobo o phahama, re khutlisetsa khetla. Ha ho mekhelo. Taeo eo e re lumella ho ts'oara li-callouts tsa GD&T joalo ka boemo ba ⊕ 0.05 mm MMC ka mekoting e robeli e arohaneng ka ho lekana - ntle le ho sila.
Netefatso ea 'nete ea lefats'e - eseng lintlha tsa lab - e tsamaisa khetho ea lisebelisoa le ts'ebetso
Bareki ba botsa: "Na u ka akhela motsoako oa T800 ka har'a mochini o sa tloaelehang oa winch center shaft roller?" E, empa hafeela re netefatsa moralo oa heke pele. T800 e tiisa karohano e matla ea dendritic. Heke e sa behoang hantle e baka setsi sa porosity mahetleng a bophara ba 75-mm. Re tsamaisa ketsiso ea solidification (re sebelisa MAGMASOFT®), ebe re netefatsa ka X-ray CT scans ka liteko tse tharo tsa liteko. Ke ka nako eo feela re lumellang mohlala.
Mona ke moo boiphihlelo bo arohanyang mohopolo le ho fana. Re kentse li-nozzles tsa motsoako oa cobalt bakeng sa lipompo tsa ente ea subsea tse sebetsang ho 120 ° C le 350 bar. Ho hloleha ho bolela ho fokotsa nako ea $2M. Kahoo re leka sehlopha se seng le se seng: matla a tensile ≥1,050 MPa, elongation ≥8%, le intergranular corrosion resistance ka ASTM G28A. Ha ho setifikeiti ntle le data ea tlhahlobo. Ha ho thomello ntle le tlaleho ea tlhahlobo e saennoeng.
Seo u ka se lebellang ha u sebelisana le silika sol investment casting factory
Haeba karolo ea hau e na le marako a masesaane (<2 limilimithara), litsela tse rarahaneng tsa ka hare, kapa li batla Rz ≤ 1.6 µm as-cast surface finish — o hloka silica sol. Empa katleho e itšetlehile ka tšebelisano, eseng feela bokhoni. Ho QINGDAO QIANGSENYUAN, tlhahlobo ea boenjiniere e qala pele e qotsa: re tšoaea li-angles tse ngotsoeng ka tlas'a 0.5 °, re fana ka tlhahiso ea radii bakeng sa ho imolla khatello ea kelello, 'me re netefatsa hore na karolo e ka etsoa kapa e tlameha ho etsoa ka mochine ka mor'a ho tšeloa.
Ha re rekise li-castings. Re fana ka likarolo tse sebetsang: li-valve tsa khatello tse koalang bareng ea 450, metheo ea pompo e kokobetsang ho sisinyeha ha 3,200 rpm, li-winch shaft rollers tse pholohang lipotoloho tse 10⁶ moeeng o tletseng letsoai. Odara e 'ngoe le e 'ngoe e kenyelletsa li-cert tsa thepa, litlaleho tsa CMM, le li-log tsa kalafo ea mocheso. Lead time? Libeke tse 14 bakeng sa sengoloa sa pele, libeke tse 8 bakeng sa ho pheta-pheta. Eseng tshepiso. Guaranteed.
Ha re sheba pele, feme ea rona ea silica sol e etsa matsete e ntse e holisa mokhoa oa eona oa lebasetere-ho kopanya mokhoa oa ho etsa li-net-shape le milling ea multi-axis ka seta e le 'ngoe. Seo se felisa liphoso tsa ho lokisa bocha le ho fokotsa nako eohle ea potoloho ka 37% bakeng sa likarolo tse kang li-blocks tse ngata tsa hydraulic. Precision ha e eme. Le rōna ha re joalo.
