Ho hlahisa phofo ea tšepe ea boleng bo phahameng ke mohato oa pele oa bohlokoa fekthering leha e le efe ea metallurgy ea phofo-'me sehokelo se fokolang ka ho fetisisa sa ketane se ka senya ts'ebetso e 'ngoe le e' ngoe e theohelang tlaase. Ho QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., re sebelitse lik'hilograma tse fetang 12,000 tsa cobalt-nickel le lisebelisoa tsa tšepe tse sa hloekang bakeng sa 'mele oa hydraulic valves, pompo housings, le li-nozzles tse lumellanang le AMS 5387 ho tloha ka 2021. ho hlōleha likarolong tsa motsoako oa T800; mongobo o ka holimo ho 0.08% o bakileng sekoti holim'a metsi nakong ea khatello e chesang ea isostatic; mme ts'ebetso e sa netefatsoang ea batch ea barekisi e liehile litlhahlobo tse tharo tsa bareki. Tlhahiso ea phofo ea 'nete ea lefats'e e hloka ho feta lisebelisoa-e hloka taeo ea metallurgical, liprothokholo tse pheta-phetoang, le mamello ea zero bakeng sa ho fetoha.
Atomization: Moo Chemistry e Kopanang le Kinematics
Atomization ea khase e ntse e le mokhoa oa rona oa ho ea ho li-alloys tse thehiloeng ho cobalt joalo ka T800 le AMS 5387-haholo-holo ha botsitso ba dimensional tlas'a meroalo ea hydraulic ea 200 MPa e ke ke ea buisanoa. Re sebelisa naetrojene ka 7.2 MPa khatello le 45 ° melt-stream impingement angle ho fihlela D.50 = 28–32 μm ka <5% e fetelletseng (>106 μm) likaroloana. Atomization ea metsi e sebetsa bakeng sa lisebelisoa tsa tšepe tsa sebopeho (mohlala, SS316L bakeng sa metheo ea pompo), empa feela ka mor'a ho kenngoa ka thata ka mor'a atomization ho 950 ° C ka hydrogen ho fokotsa oksijene e ka tlase ho 0.15 wt%. Habohlokoa, ha ho mohla re tlolang teko ea ho hasana ea ultrasonic pele ho sieving: haeba likaroloana li boela li kopana ka metsotsoana e 90 ka joala ea isopropyl, re hana lotho-le haeba tlhahlobo ea sieve e feta. Ke hobane li-agglomerates li robeha ka mokhoa o sa lebelloang nakong ea compaction, li theha li-gradients tsa density tse qalang mapetsong a manyane nakong ea sintering.
Ts'ebetso ea Rotary Electrode: Bakeng sa Ha U sa khone ho Fumana Li-Oxides
Bakeng sa li-nozzles tsa cobalt-nickel tse sebetsang ka holimo ho 650 ° C ka har'a lisebelisoa tsa ho theola oli le khase, oxide inclusions e kotsi. Mona, ts'ebetso ea rotary electrode (REP) e fana ka seo atomization ea khase e ke keng ea khona: oksijene e haufi le zero (<0.02 wt%), morphology ea spherical, le taolo e thata ea boholo (D10–D90 span <1.8). Re ohla li-electrode tsa AMS 5387 ho 12,500 rpm ka har'a likamore tsa vacuum tse tšoaretsoeng 1 × 10.−2 mbar. Phofo e hlahisoang e phalla ka 22 s / 50g (Hall Flowmeter), e pakela ho 62% ho bonahala eka ho teteaneng, le li-sinters ho> 99.2% ea teoritest density ntle le HIP. Empa REP ha e kopane hohle-re e qoba bakeng sa lisebelisoa tsa tšepe tse hlokang libaka tsa nucleation tsa graphite. Ho e-na le hoo, re sebelisa phofo ea Fe-2.5C ea metsi e nang le metsi a nang le metsi a nang le karohano ea carbon e laoloang, ebe re eketsa 0.8% flake graphite nakong ea ho kopanya ho etsa bonnete ba hore li-nodule tsa graphite tse sa tšoaneng ka mor'a sinter-anneal.
Liheke Tsa Boleng: Ha ho Phofo e Tlohang Ntle le ho Feta Tsohle tse Nne
Re tiisa lintlha tse 'ne tseo ho sa buisanoeng ka tsona pele sehlopha sefe kapa sefe sa phofo se qala ho tsoakana:
- Netefatso ea lik'hemik'hale: ICP-OES khahlano le lisebelisoa tsa litšupiso tse netefalitsoeng (CRM NIST SRM 1262a bakeng sa Co, CRM NIST SRM 3125a bakeng sa Ni); kheloha> 0.15% e baka tlhahlobo e felletseng
- Boholo ba karolo le sebopeho: Laser diffraction (Malvern Mastersizer 3000) + setšoantšo sa SEM; Aspect ratio>1.8 kapa circularity <0.7 ha e amohelehe
- Phallo & mokoloko: Holo Flowmeter + Scott Volumeter; sekhahla sa phallo e tlameha ho ba 18–24 s/50g, bongata bo boholo 2.8–3.1 g/cm³
- Tlhahlobo ea tšilafalo: Ferrograph bakeng sa litšila tsa ferrous wear; XRF e hlahloba lintlha tsa Cr, Mo, kapa Ti ho tsoa mathateng a fetileng
Re kenya sephetho se seng le se seng ho sistimi ea rona ea ISO 9001-certified MES — e nang le traceability e felletseng ea thepa e khutlelang nomorong e tala ea mocheso oa ingot. Haeba sehlopha se hloleha leha e le heke e le 'ngoe, sea lokisoa - ha se fokotsehe.
Ke Hobane'ng ha "Sebetsa" se Bolela Phapang e Laolehileng, Eseng Lebelo
Lifeme tse ling li lelekisa tonnage ka hora. Re lelekisa ho kheloha ho tloaelehileng. Tlhahisong ea rona ea phofo ts'ebetsong ea fektheri ea phofo ea metallurgy, katleho e bolela ho tšoara D50 phapang ho ± 0.9 μm ho pholletsa le lihlopha tse 10 tse latellanang-eseng ho fokotsa nako ea atomization ka 12%. Hobaneng? Hobane matlo a silindara a pompo ea piston a entsoe ka phofo e nang le ± 3.2 μm D50 phapang e bontšitse 22% litekanyetso tse phahameng tsa ho lutla litekong tsa khatello ho 350 bar. Re tsetela ho lekola mocheso oa plasma ka nako ea 'nete, taolo ea khatello ea khase e koetsoeng, le ho lekanya ka mochini oa sieve shaker lihora tse ling le tse ling tse 4. ROI ha e hlahise kapele-e felisa rework ho $ 4,200 cobalt alloy valve litulo.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. e tšoara phofo eseng joalo ka thepa e tala empa e le DNA ea motheo ea karolo e 'ngoe le e 'ngoe. Tlhahiso ea rona ea phofo fekthering ea phofo ea metallurgy e qala ka netefatso ea k'hemistri ea alloy, e tsoela pele ka atomization e ntlafalitsoeng ka kinematically, 'me e fela ka mor'a hore liheke tse' nè tse ikemetseng li netefatse ho pheta-pheta-eseng hanngoe feela, empa ho pholletsa le kilogram e 'ngoe le e' ngoe ka lotho. Ke kamoo li-valve tsa khatello li pholohang bophelo ba tšebeletso ea lihora tse 15,000 lipompong tsa leoatle. Ke kamoo lirolara tsa winch center shaft li bolokang metsi ka tlas'a 8 μm ka mor'a 500 cycles ea mocheso. Bokamoso ke ba bahlahisi ba phofo ba lekanyang katleho eseng ka lik'hilograma ka shift-empa ka microstructures ka micrometer.
