Xuab zeb casting tseem yog cov txheej txheem tsim khoom tseem ceeb rau kev tsim cov corrosion-tiv thaiv stainless hlau Cheebtsam thoob plaws ntau yam kev lag luam.
Kev xaiv cov xuab zeb tsim nyog ua pov thawj tseem ceeb thaum casting corrosion-resistant stainless hlau. Silica sands nrog 95-98% SiO2 cov ntsiab lus thiab AFS grain fineness tooj ntawm 50-70 muab cov txiaj ntsig zoo. Cov txheej txheem tshwj xeeb khi nrog rau phenolic urethane thiab alkaline phenolic resins ua tau zoo tshaj plaws nrog cov hlau tsis muaj steel, txo cov hlau-pwm kev sib cuam tshuam uas tuaj yeem cuam tshuam kev tiv thaiv corrosion. Kev kho cov xuab zeb kom zoo tswj cov dej noo zoo ib yam hauv qab 3.5% txhawm rau tiv thaiv cov pa phem.
Melting thiab pouring tsis muaj feem cuam tshuam rau kev ua haujlwm corrosion ntawm cov xuab zeb cam khwb cia hlau stainless. Kev tswj cov huab cua melting siv argon tiv thaiv tiv thaiv chromium oxidation ntau dhau. Pouring kub optimization nws txawv los ntawm alloy, feem ntau xws li ntawm 1550-1650℃rau cov qib xws li 304 thiab 316 stainless hlau. Kev tswj qhov kub thiab txias tsis pub dhau ± 15℃ua kom muaj dej txaus thaum txo qis carbide nag lossis daus uas tuaj yeem txo qhov kev tiv thaiv corrosion.
Gating system tsim yuav tsum tau saib xyuas tshwj xeeb rau corrosion-cov ntawv siv tiv taus. Pressurized gating systems nrog choke thaj chaw loj ntawm 1.2-1.5 npaug ntawm qhov kev xav tau ntawm kev xav tau pab tiv thaiv kev kub ntxhov thiab oxide tsim. Khiav txuas ntxiv thiab cov ntxaij lim dej ceramic zoo cuab kev suav nrog uas tuaj yeem pib qhov chaw corrosion. Simulation software pab txhim kho txoj hauv kev pub noj kom ua tiav cov kev taw qhia khov kho, txo cov microporosity uas yuav cuam tshuam kev ua haujlwm corrosion.
Ncej - kev kho cov casting txhim kho corrosion kuj ntawm cov xuab zeb cam khwb cia stainless hlau Cheebtsam. Kev daws annealing ntawm 1050-1150℃tom qab quenching ceev rov qab zoo microstructure los ntawm dissolving chromium carbides. Electropolishing los yog passivation kev kho mob ntxiv txhim kho qhov corrosion kuj los ntawm kev tshem tawm cov impurities thiab enriching cov chromium oxide txheej.
Kev tswj xyuas zoo ntsuas tshwj xeeb rau corrosion- cov ntawv siv tiv taus suav nrog kev txheeb xyuas cov ntsiab lus ferrite siv cov hlau nplaum lossis metallographic. Pitting corrosion testing raws li ASTM G48 tus qauv muab kev ntsuas ntau ntawm kev tiv thaiv corrosion. Advanced foundries siv electrochemical xeem txoj kev los kwv yees ntev -lub sij hawm corrosion kev ua tau zoo nyob rau hauv tej kev pab cuam ib puag ncig.
Kev nce qib tsis ntev los no hauv cov tshuab xuab zeb casting tau txhim kho corrosion- muaj peev xwm tiv taus. Peb-sib nqus luam ntawv ntawm cov xuab zeb moulds ua rau cov txheej txheem txias txias uas ua kom zoo rau cov qauv kev sib zog. Environmentally friendly binder systems txo cov leej faj thiab nitrogen paug txaus ntshai. Automated xuab zeb txias tshuab tswj cov pwm zoo ib yam thoob plaws hauv kev tsim khoom.
Cov ntawv thov kev lag luam tau txais txiaj ntsig los ntawm cov txheej txheem xuab zeb zoo tshaj plaws suav nrog cov twj tso kua mis rau kev ua tshuaj, cov khoom siv hauv hiav txwv, thiab cov khoom siv ua zaub mov. Kev ua tiav cov xuab zeb casting zoo tuaj yeem tsim cov hlau tsis muaj steel hlau nrog corrosion kuj mus txog ntawm cov ntaub ntawv wrought, ntawm tus nqi qis dua rau nruab nrab - mus rau - cov khoom loj.
Lub neej yav tom ntej ntawm cov xuab zeb casting rau corrosion-cov ntawv siv tiv taus yog nyob rau hauv kev koom ua ke ntxiv ntawm cov thev naus laus zis. Tiag - lub sij hawm cov txheej txheem saib xyuas cov txheej txheem taug qab qhov tsis tseem ceeb los ntawm kev npaj pwm los ntawm kev kho cua sov. Tshuab kev kawm algorithms txheeb xyuas cov ntaub ntawv keeb kwm los kwv yees thiab tiv thaiv corrosion- cuam tshuam txog qhov tsis xws luag. Cov kev nce qib no txuas ntxiv nthuav dav ntau yam ntawm cov ntawv thov uas cov xuab zeb cam khwb cia stainless hlau muab kev pom zoo ua ke ntawm kev ua tau zoo thiab tus nqi- ua tau zoo.
