Yuav ua li cas xaiv qhov zoo tshaj plaws Ferro Silicon Magnesium (FeSiMg)
Ferro Silicon Magnesium(FeSiMg) yog lub hauv paus ntawm cov khoom siv hlau. Raws li thawj tus neeg sawv cev nodulizing, nws hloov cov flake graphite rau hauv cov nodules kheej kheej, imparting lub zog thiab ductility uas txhais cov niaj hnub castings. Txawm li cas los xij, tsis yog tag nrho FeSiMg alloys yog tsim sib npaug. Xaiv cov qib "zoo tshaj" tsis yog hais txog kev nrhiav cov khoom siv thoob ntiaj teb, tab sis hais txog kev sib piv cov alloy cov yam ntxwv ntawm cov khoom siv hlau zoo rau koj qhov kev tsim tshwj xeeb, ntu ntu tuab, thiab yaj zoo. Ib qho yuam kev ntawm no tuaj yeem ua rau muaj qhov tsis sib xws ntawm qhov tsis sib xws, kev poob qis ntau dhau, lossis raug nqi slag tsis xws luag.
1. Txhais koj lub hom phiaj Magnesium
Qhov kev txiav txim siab tseem ceeb tshaj plaws yog cov ntsiab lus magnesium (Mg), feem ntau yog li ntawm 3% mus rau 10%. Rau nyias-walled castings xav tau cov nodule suav, qis Mg cov ntsiab lus (4-5%) feem ntau txaus thiab muab Mg rov zoo dua vim muaj kev sib zog sai. Hloov pauv, rau qhov hnyav -section castings (tshaj 100 hli), Mg cov ntsiab lus siab dua (6-7%) feem ntau yog qhov tsim nyog los tiv thaiv lub sij hawm sib zog ntev dua thiab nyiam Mg kom ploj mus. Txawm li cas los xij, Mg siab dua kuj txhais tau tias muaj kev sib ntaus sib tua ntau dua thiab muaj kev tsim tawm ntau ntxiv. Qhov qib zoo tshaj plaws yog qhovqis tshajMg cov ntsiab lus uas tsis tu ncua ua tiav koj lub hom phiaj seem Mg (feem ntau 0.035–0.055%) tom qab kho.
2. Ntsuas qhov Tsis tshua muaj Ntiaj Teb (RE) Balance
Tsis tshua muaj lub ntiaj teb cov ntsiab lus (feem ntau Cerium thiab Lanthanum) yog "tus neeg saib xyuas" hauv FeSiMg. Lawv neutralize cov teeb meem kab mob xws li txhuas, bismuth, thiab antimony, uas muaj nyob rau hauv qis - zoo steel seem. Txawm li cas los xij, RE ntau dhau tuaj yeem ua rau "chunky graphite" hauv cov ntu hnyav, qhov ua rau tuag taus uas ua rau ductility. Rau siab - purity nqi, qis -RE los yog RE- dawb alloy yog qhov zoo dua. Rau cov khoom seem- hnyav melts, tus qauv RE cov ntsiab lus (0.5–1.0%) yog qhov zoo. Xaiv tus neeg muag khoom uas muaj kev tswj hwm nruj RE thiab tuaj yeem muab cov kev cai sib piv (xws li, Ce- nplua nuj vs. La- nplua nuj) kom phim koj cov ntsiab lus tshwj xeeb.
3. Ntsuas lub cev thiab qhov ntom ntom
Cov yam ntxwv ntawm lub cev feem ntau tsis saib xyuas tab sis tseem ceeb heev rau kev rov zoo li qub. Lub alloy feem ntau muaj nyob rau hauv peb hom:
Txheem crushed:Economy tab sis tuaj yeem cais thaum thauj khoom.
Granular (shot):Spherical hais nrog siab ceev thiab zoo heev flowability. Qhov no ua kom muaj qhov zoo sib xws Mg rov qab los ntawm ladle mus rau ladle thiab txo cov plua plav poob.
Cored kab:Qhov kev xaiv zoo tshaj plaws rau precision thiab txo fume. Qhov ntom ntawm MgSi hmoov nyob rau hauv cov hlau txiav txim siab pub tus nqi thiab rov qab los.
Rau kev kho lub ladle (txoj kev sandwich), xaiv qhov ntom ntom uas ua kom cov hlau tsis huv los ntawm cov hlau molten sai yam tsis muaj ntab. Rau kev txhaj tshuaj xaim, qhov loj me me ntawm cov xaim xaim yuav tsum tsis tu ncua kom tsis txhob muaj qhov tsis zoo.
4. Txheeb xyuas Cov Cai Tsis Txaus
High -zooFeSiMg must have strict limits on detrimental elements. Aluminum (Al) and Titanium (Ti) should be kept below 1.0% to reduce pinhole porosity and improve fluidity. Calcium (Ca) is beneficial for reaction control but excessive Ca (>1.5%) nce slag viscosity thiab ua rau dross tshem tawm nyuaj. Ib txwm thov kom muaj kev soj ntsuam spectrographic tag nrho thiab muab piv rau koj cov lus qhia sab hauv.
5. Cov neeg muab khoom sib xws thiab kev txhawb nqa
Tus neeg muab khoom "zoo tshaj" yog ib tus neeg muab cov ntaub ntawv tswj xyuas cov txheej txheem (SPC), kom ntseeg tau tias Mg, RE, thiab Si qib sib txawv me ntsis ntawm batch mus rau batch. Chemistry tsis sib haum ua rau koj hloov kho koj cov txheej txheem tas li, ua rau seem. Tsis tas li ntawd, tus neeg muag khoom nrog cov kws tshaj lij metallurgists uas tuaj yeem pab nrog fading lub sij hawm tsom xam thiab kev txhaj tshuaj tsis muaj nuj nqis.
Xaus
Qhov zoo tshaj plaws FeSiMg tsis yog tus nqi kim tshaj lossis qis tshaj - nqi; nws yog qib uas muab qhov ruaj khov, qhov ntsuas pom tau, yields qhov siab tshaj plaws nodularity ntawm qhov qis tshaj qhov seem Mg, thiab txo qis slag tsis xws luag rau koj qhov tshwj xeeb casting tsim. Pib los ntawm kev tshuaj xyuas koj lub hauv paus hlau purity thiab seem thickness, ces thov cov qauv batches rau kev sim nruj. Thaum kawg, qhov sib xws hauv chemistry thiab lub cev zoo yog qhov ntsuas qhov tseeb ntawm qhov kev xaiv "zoo tshaj".
📧E-mail: goldenltd.silicon@gmail.com 📞WhatsApp:86 16663721147
