Xuab zeb casting, ib qho ntawm cov txheej txheem qub tshaj plaws, tseem tuav cov haujlwm tseem ceeb hauv kev tsim khoom lag luam. Nws cov ntsiab cai tseem yog siv cov xuab zeb pwm ua ib tug tuag rau hauv cov hlau uas molten rau qhov uas xav tau. Txog xyoo kev xyaum, Kuv tau qhia txog ob peb cov kev paub tseem ceeb uas tuaj yeem pab ua cov kws qhia.
Pwm kev ua yog qhov tseem ceeb. Qhov ntom ntawm cov xuab zeb pwm ncaj qha cuam tshuam qhov zoo ntawm cov casting. Dhau dhau ib pwm tuaj yeem yooj yim ua rau cov xuab zeb o, thaum nruj dhau cov pwm tuaj yeem cuam tshuam huab cua rau cov huab cua permeability. Hauv kev xyaum, Fawm kib xuab zeb txhaws thiab nruab nrab rauj yuav ua tiav qhov sib npaug ntawm qhov ntom ntom thiab huab cua permeability. Tsis tas li ntawd, cov tub ntxhais cov xuab zeb sib tov yuav tsum ua kom haum rau cov duab ua pov. Rau cov kab nrib pleb, txheej txheem sand cores raug pom zoo kom txhim kho qhov tseeb.
Gating system tsim yog qhov tseem ceeb heev. Lub rooj vag qhov chaw thiab qhov loj yuav tsum tau ua kom zoo raws li cov kev ntws ntawm Molten hlau kom tsis txhob muaj kev ntxhov siab lossis txias tawg. Kev paub tau qhia tias hauv qab {- sau cov kab ke tuaj yeem txo cov roj oxide yog qhov haum rau cov kab hlau loj. Tsis tas li ntawd, kev tsim tus nqi zog yuav tsum ua kom muaj kev txuag ua kom huv. Lawv feem ntau nyob hauv thaj tsam kub ntawm lub Casting thiab txheeb xyuas qhov kev siv simulation software.
Cov txheej txheem tswj xyuas kev txiav txim siab ua tiav lossis tsis ua tiav. Lub suab kub yaj yuav tsum tau soj ntsuam nruj me ntsis. Kev kub dhau heev tuaj yeem ua rau muaj kev cuam tshuam rau kev sib cais, thaum muaj kev kub ntau dhau tuaj yeem ua rau muaj fluidity tsis txaus. Thaum pouring, molten hlau qhov kub yuav tsum tau 50-100℃saum toj no cov kua txwv, nrog tus nqi tshwj xeeb hloov kho los ntawm kev mus sib. Tsis tas li ntawd, cov dryness ntawm cov xuab zeb pwm tseem ceeb heev. Ntub Casting yuav tsum muaj cov ntsiab lus noo ntawm 4% -6%, thaum nws qhuav casting yuav tsum ua kom meej porosity.
Kev tiv thaiv tsis raug yog qhov tseem ceeb tshaj li kev kho. Cov khoom tsis xws luag xws li shrinkage thiab xuab zeb suav tuaj yeem zam dhau los ntawm cov txheej txheem txhim kho. Piv txwv li, ntxiv qhov ua kom txias rau shrinkage - huab cua sib tw rau cov xuab zeb pwm tuaj yeem txo cov xuab zeb arphation. Cov ntaub ntawv tsis haum thiab cov txiaj ntsig tom qab txhua cov ncuav thiab tsim cov ntaub ntawv khaws cia tuaj yeem pab nrhiav teeb meem sai sai sai sai.
Xuab zeb casting yog lub thev naus laus zis, tab sis cov ntsiab lus txiav txim siab zoo. Tsuas yog los ntawm kev ua ntu zus nruam thiab rov qab ua rau peb qhib tus nqi niaj hnub hauv cov txheej txheem ib txwm muaj.
