Cov txheej txheem casting txhuas yog qhov tsis sib cais ntawm ntau yam khoom siv. Cov khoom siv no ua lub luag haujlwm tseem ceeb hauv cov khoom siv casting txhuas.
Thawj qhov yoglub tshuab ntxhua khaub ncaws ceramic, uas yog ib qho cuab yeej tseem ceeb rau kev thauj cov txhuas molten los ntawmlub cub tawgrau pwm casting. Nws yog tsim los xyuas kom meej tias muaj kev faib tawm ntawm cov txhuas molten sib npaug thiab tswj tau, tiv thaiv kom tsis txhob muaj kev tsis sib npaug lossis kev hloov pauv thaum lub sijhawm casting. Nws yog tsim los tiv taus qhov kub siab thiab xyuas kom meej tias muaj kev hloov pauv ntawm cov kua txhuas yam tsis muaj kev ua qias tuaj. Qhov no yog qhov tseem ceeb rau kev tswj hwm qhov zoo thiab kev ncaj ncees ntawm cov khoom siv txhuas kawg. Kev tsim qauv ntawm lub tshuab ntxhua khaub ncaws ceramic tso cai rau kev ntws du ntawm cov txhuas molten, tiv thaiv kom tsis txhob muaj kev thaiv lossis kev cuam tshuam hauv kev ntws.
Lublub thawv lim dejyog ib qho khoom siv tshwj xeeb uas tsim los rau cov lim dej ua npuas ncauj ceramic, uas yog tsim los ntawm cov fibers ceramic tshwj xeeb thiab cov ntaub ntawv inorganic ceramic. Thaum sivlim dej ua npuas ncaujTxhawm rau lim cov txhuas thiab cov txhuas hlau yaj, nws yog ib qho khoom siv tsim nyog los tsim lub qhov lim ruaj khov. Nws muaj kev tiv taus thermal shock zoo, muaj zog siab, muaj zog cuam tshuam rau lub tshuab thiab kev ua haujlwm thermal qis. Lub hom phiaj tseem ceeb ntawm lub lim ua npuas ncauj ceramic yog tshem tawm cov khoom tsis huv hauv cov kua txhuas. Los ntawm kev nqus tau zoo cov txhuas slag, nws tuaj yeem txo qhov ua rau muaj kuab paug ntawm cov kua txhuas thaum lub sijhawm casting. Qhov no ua lub luag haujlwm tseem ceeb hauv qhov zoo ntawm cov khoom txhuas kawg.
Lwm tus yogkev faib khoom ntxuav, uas yog ib qho tseem ceeb nyob rau sab saum toj ntawm lub pwm casting. Lub tshuab ntxhua khaub ncaws faib khoom yog lub luag haujlwm rau kev faib cov txhuas molten mus rau ntau lub pwm tib lub sijhawm. Qhov no yog qhov tseem ceeb los txhim kho cov txheej txheem ua haujlwm zoo thiab nce kev tsim khoom casting. Nws lub luag haujlwm tuaj yeem xa cov kua txhuas huv si mus rau hauv lub pwm casting. Qhov no ua kom ntseeg tau tias muaj kev faib tawm ntawm cov kua txhuas, tshem tawm txhua qhov ua tau ntawm kev sau tsis sib xws lossis qhov tsis zoo hauv cov khoom kawg.
Thaum cov txhuas uas yaj lawm ntws mus rau hauv cov pwm casting, nws pib hloov mus ua cov txhuas billets. Qhov no yog qhov uas cov crystallizer los ua si.Cov khoom siv ua kom muaj crystallizersmuaj kev ua tau zoo heev ntawm cov cua sov thiab tuaj yeem tiv taus qhov kub siab. Lub luag haujlwm tseem ceeb ntawm lub crystallizer yog txhawb cov txheej txheem khov, cia cov kua txhuas txias thiab tsim cov duab xav tau. Lub crystallizer yog ib qho khoom siv tseem ceeb los xyuas kom meej tias cov duab ntawm cov txhuas billet raug. Yog tias nws tsis ua haujlwm, tsis yog cov kua txhuas yuav tsis ua haujlwm rau hauv cov txhuas billets xwb, tab sis kuj muaj kev pheej hmoo ntawm kev tawg. Lub sijhawm no, lwm yam khoom siv tseem ceeb yog qhov xav tau, iblub khob hliav qabntawm txhuas silicate kom tiv thaiv kev nkag mus ntawm cov kua txhuas thiab zam kev raug mob loj.
Cov no yog cov khoom siv tseem ceeb hauv kev tsim kho vaj tsekub sab saum toj castingCov txheej txheem. Txhua yam khoom siv muaj nws txoj haujlwm tshwj xeeb. Cov khoom siv txhuas no txhim kho qhov ua tau zoo thiab zoo ntawm cov txheej txheem casting txhuas: Cov lim ua npuas ncauj ceramic ua kom tshem tawm cov khoom tsis huv thiab tiv thaiv cov txhuas molten los ntawm cov khoom tsis huv. Thaum cov shunts ua kom muaj kev faib tawm thoob plaws hauv pwm. Thaum kawg, lub crystallizer tswj cov txheej txheem solidification, hloov cov kua txhuas mus rau hauv cov txhuas billet zoo. Hauv kev xaus, cov txheej txheem casting txhuas xav tau kev siv ntau yam khoom siv los xyuas kom meej tias cov khoom lag luam aluminium alloy zoo. Cov tshuab ntxhua khaub ncaws ceramic, crystallizers, cov tshuab ntxhua khaub ncaws faib tawm thiab cov thawv lim dej yog cov cuab yeej tseem ceeb uas pab txhawb rau kev ua tiav ntawm cov txheej txheem casting. Cov khoom siv no tsis yog tsuas yog ua kom muaj kev ua haujlwm zoo thiab kev tsim khoom ntawm cov txheej txheem, tab sis kuj tsim cov khoom lag luam txhuas zoo, tsis muaj qhov tsis xws luag.
Lub sijhawm tshaj tawm: Lub Kaum Hli-07-2023