Yog hais tias lub tes tsho tooj liab thiab zinc-raws li alloy lub tes tsho muaj pwm kub, cov hlau filling muaj peev xwm tuaj yeem txhim kho, thiab cov txheej txheem preheating pwm feem ntau yog siv los xyuas kom meej qhov ntim ntawm nyias-walled castings.
Lub thermal conductivity ntawm txheej yog me me, lub thickness yog loj, lub tshav kub dissipation ntawm cov kua alloy yog qeeb, thiab lub filling muaj peev xwm kuj zoo tuaj.
Cov khoom siv pwm muaj peev xwm tsim tau cov pa roj, tsim cov pwm pwm ntawm cov hlau thiab cov pwm, uas tsis tsuas yog txo cov kev khiav hauj lwm, tab sis kuj ua rau cov txheej txheem kub-resistant, yog li txhim kho lub peev xwm ntawm lub tes tsho tooj liab alloy.
Lub filling siab yog siab, lub pouring txoj hauj lwm yog tsim nyog, lub sab saum toj-spray pouring system yog saws, tus ntoo khaub lig-section yog loj, lub kuj yog me me, thiab lwm yam., thiab cov txheej txheem casting yog haum rau sau.
Kev nce qhov kub thiab txias ntawm lub tes tsho tooj liab tuaj yeem txhim kho lub peev xwm filling ntawm tooj liab alloy. Rau cov alloys uas tsis tshua muaj fluidity thiab nyias-walled castings, cov txheej txheem saum toj no feem ntau yog siv los ua kom tiav cov filling. Txawm li cas los, thaum lub pouring kub
Cov pa roj ntau ntau thiab oxidation hnyav, yog li cov nplej ntawm cov casting yog ntxhib, thiab nws yog ib qho yooj yim los ua qhov tsis xws luag, xws li shrinkage, shrinkage, tshav kub, thiab xuab zeb sticking. Pouring ceev heev yuav yooj yim ua rau tsis xws luag xws li xuab zeb ntxuav thiab xuab zeb o, yog li nws tsis pom zoo.
Pouring ceev nce siab dhau lawm.
Yog hais tias lub tes tsho tooj liab cam khwb cia muaj ib tug loj modulus, nws yog ib qho yooj yim mus sau. Cov qauv casting yog complex thiab nyuaj rau sau.
Thaum kawg, txhawm rau txhim kho lub peev xwm ntawm tooj liab alloys, cov kev ntsuas uas yuav tsum tau ua yog: xaiv cov khoom siv hlau kom raug, cov txheej txheem smelting nruj, xws li refining, deterioration, thiab lwm yam.; qauv cov ntaub ntawv thiab txheej txheej, tsis tshua muaj kub cia coefficient; kub; ntxiv dag zog rau tooj liab
Muaj peev xwm; Rau nyias-walled complex castings, qhov kub thiab txias casting qhov hnyav yuav tsum tsim nyog, lub pouring txoj hauj lwm haum rau lub muab tub lim yuav tsum tau xaiv, lub taub hau filling yuav tsum tau nce, thiab cov kuj ntawm casting coefficient yuav tsum tau txo.