Thaum cov kws tshaj lij qhia cov silica sol peev casting rau precision hlau qhov chaw, lawv tsis yog xaiv ib tug txheej txheem - lawv xaiv ib tug guarantee ntawm seem stability, nto fidelity, thiab metallurgical sib xws nyob rau hauv cov kev pab cuam huab cua. Ntawm QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., peb tau nrum ntau dua 12,000 tus lej tshwj xeeb uas siv silica sol-feem ntau nyob rau hauv cobalt-nickel alloys xws li AMS 5387 thiab T800- qhov twg ± 0.05 hli kam rau ua tsis yog lub hom phiaj; nws yog lub hauv paus.
Yog vim li cas silica sol - tsis yog dej iav los yog plaster - xa rov qab precision
Ntau tus neeg yuav khoom xav tias "kev nqis peev casting" yog ib txoj hauv kev. Tsis yog. Lub binder system txhais cov kev txwv kev ua haujlwm. Silica sol siv colloidal silica (SiO₂ nanoparticles raug tshem tawm hauv dej) ua tus thawj khi. Nws cov viscosity tsawg nkag mus rau cov ntsiab lus zoo; nws lub siab refractoriness withstands 1,550 ° C ncuav kub rau superalloys. Dej iav tshuab tawg nyob rau hauv thermal shock. Plaster pwm degrade siab tshaj 600 ° C - puas microstructure nyob rau hauv cobalt-based twj tso kua mis vaj tse.
Peb tau pom cov neeg siv khoom hloov los ntawm iav dej mus rau silica sol tom qab peb sib law liag tsis ua tiav kev ntsuas siab ntawm 420 bar. Hauv paus ua rau? Microcracks nyob rau hauv lub plhaub phab ntsa, undetectable visually tab sis paub tseeb hais tias los ntawm SEM fractography. Silica sol shells qhia tsis muaj qhov tsis zoo - txawm tias nyob ntawm 0.3 hli-thick vanes hauv turbine nozzle sib dhos. Yog vim li cas peb silica sol peev casting Hoobkas tuav ISO 9001: 2015 ntawv pov thawj nrog tag nrho traceability mus rau tshav kub ntau, particle loj faib ntawm slurry, thiab dew point tswj thaum ziab.
Kev sib xyaw ntsug tsis yog kev lag luam - nws yog li cas peb tuav ± 0.03 hli ntawm 300-mm lub tog raj kheej vaj tsev
Qee tus neeg muag khoom outsource plhaub ua, casting, thiab machining. Peb ua tag nrho peb hauv ib qho chaw ua raws ISO hauv Qingdao. Vim li cas qhov ntawd tseem ceeb? Vim hais tias lub piston twj tso kua mis lub tog raj kheej vaj tse yuav tsum sib piv thermal expansion ntawm lub plhaub, alloy, thiab CNC fixture. Thaum casting thiab machining tshwm sim nyob rau hauv ib lub ru tsev, peb calibrate CMM probes tiv thaiv li-cam khwb cia datum nto - tsis theoretical CAD qauv. Peb ntsuas shrinkage vectors ib alloy batch, ces kho toolpaths ua ntej txiav.
Piv txwv li: AMS 5387 cobalt alloy shrinks 1.82% linearly hauv silica sol pwm-tab sis tsuas yog thaum cov dej lwg nyob qis dua -25 ° C thaum kawg ziab. Peb teev txhua lub voj voog kom qhuav. Yog hais tias cov av noo spikes, peb recast lub plhaub. Tsis muaj kev zam. Qhov kev qhuab qhia ntawd cia peb tuav GD&T callouts zoo li txoj hauj lwm ⊕ 0.05 mm MMC ntawm yim qhov sib npaug sib npaug ntawm qhov sib npaug-tsis muaj kev sib tsoo.
Kev lees paub tiag tiag hauv ntiaj teb-tsis yog kev kuaj sim-tsav cov khoom siv thiab cov txheej txheem xaiv
Cov neeg siv khoom nug: "Koj puas tuaj yeem nrum T800 alloy rau hauv qhov tsis yog tus qauv winch center ncej cov menyuam?" Yog lawm-tab sis tsuas yog tias peb lees paub qhov kev tsim lub rooj vag ua ntej. T800 solidifies nrog hnyav dendritic segregation. Lub rooj vag tsis zoo ua rau lub hauv paus porosity ntawm 75-mm txoj kab uas hla ntawm lub xub pwg nyom. Peb khiav solidification simulation (siv MAGMASOFT®), ces xyuas nrog X-ray CT scans ntawm peb mus sib hais castings. Tsuas yog tom qab ntawd peb pom zoo tus qauv.
Qhov no yog qhov kev paub cais txoj kev xav ntawm kev xa khoom. Peb tau nrum cobalt alloy nozzles rau subsea txhaj twj ua haujlwm ntawm 120 ° C thiab 350 bar. Kev ua tsis tiav txhais tau tias $ 2M downtime. Yog li peb sim txhua batch: tensile zog ≥1,050 MPa, elongation ≥8%, thiab intergranular corrosion kuj ib ASTM G28A. Tsis muaj ntawv pov thawj yam tsis muaj ntaub ntawv xeem. Tsis muaj khoom xa tuaj yam tsis tau kos npe rau daim ntawv tshuaj ntsuam xyuas.
Yuav xav li cas thaum koom tes nrog silica sol peev casting Hoobkas
Yog tias koj qhov chaw muaj cov phab ntsa nyias (<2 hli), cov kab lus sab hauv, lossis xav tau Rz ≤ 1.6 µm li-cam khwb cia nto tiav-koj xav tau silica sol. Tab sis kev vam meej nyob ntawm kev sib koom tes, tsis yog kev muaj peev xwm xwb. Ntawm QINGDAO QIANGSENYUAN, kev tshuaj xyuas engineering pib ua ntej hais: peb chij lub kaum sab xis nyob rau hauv 0.5 °, qhia radii rau kev ntxhov siab, thiab paub meej tias lub feature puas tuaj yeem nrum-los yog yuav tsum tau machined tom qab ncuav.
Peb tsis muag castings. Peb xa cov khoom siv ua haujlwm: lub siab li qub uas kaw ntawm 450 bar, lub hauv paus twj tso kua mis uas ua rau 3,200 rpm vibration, winch ncej rollers uas muaj sia nyob 10⁶ mus rau hauv huab cua ntsev. Txhua qhov kev txiav txim suav nrog cov ntaub ntawv pov thawj, CMM cov ntaub ntawv, thiab cov ntaub ntawv kho cua sov. Lub sijhawm ua haujlwm? 14 lub lis piam rau thawj tsab xov xwm, 8 lub lis piam rau rov ua dua - lav. Tsis tau cog lus tseg. lav.
Saib ua ntej, peb silica sol peev casting Hoobkas yog nthuav nws cov txheej txheem hybrid-kev koom ua ke ze-net-shaped casting nrog multi-axis milling nyob rau hauv ib qho kev teeb tsa. Qhov ntawd tshem tawm qhov rov kho qhov yuam kev thiab txiav tag nrho lub sijhawm voj voog los ntawm 37% rau cov khoom xws li hydraulic manifold blocks. Precision tsis zoo li qub. Tsis yog peb.
