Cov laj thawj tseem ceeb rau kev ua tsis tiav hauv cov txheej txheem tuag casting yog raws li hauv qab no:
1, fragmentation tsis ua hauj lwm: qhov no feem ntau yog vim tuag casting nyob rau hauv qhov kev txiav txim ntawm kev txhaj tshuaj quab yuam, tawg nyob rau hauv qhov chaw tsis muaj zog, tshwj xeeb tshaj yog nyob rau hauv tsim nto ntawm khawb los yog hluav taws xob ua cov cim tsis polished du qhov chaw. Qhov tawg nrawm nrawm nrawm nrawm nrawm nrawm, uas yog qhov txaus ntshai rau tuag casting. Txhawm rau kom tsis txhob tawg tsis ua haujlwm, nws yog ib qho tsim nyog yuav tsum tau txhuam cov khawb thiab cov khoom siv hluav taws xob, thiab xaiv cov khoom siv tuag-casting nrog lub zog siab, zoo plasticity, cuam tshuam toughness thiab tawg toughness.
2, corrosion tsis ua hauj lwm: qhov no feem ntau yog vim lub active hlau ntsiab nyob rau hauv lub tuag casting alloy (xws li zinc, aluminium, magnesium thiab tooj liab) thiab tuag casting cov ntaub ntawv muaj ib tug zoo affinity, tshwj xeeb tshaj yog txhuas yooj yim rau tom. Thaum lub hardness ntawm tuag casting yog siab dua, lub corrosion kuj yog zoo dua, tab sis qhov muag taw tes ntawm lub forming nto yog unfavorable. Aluminium alloy tuag casting
3, thermal fatigue cracking tsis ua hauj lwm: qhov no yog cov feem ntau ntawm cov tsis ua hauj lwm nyob rau hauv lub tuag casting txheej txheem. Nyob rau hauv tus txheej txheem ntawm tuag casting ntau lawm, tuag casting yog cuam tshuam los ntawm rov qab kub thiab txias mus, tsim nto thiab sab hauv deformation, uas ua rau cov kev khiav ntawm thermal stress. Qhov no ua rau kev puas tsuaj rau cov qauv, tsis muaj zog, thiab pib thiab nthuav tawm ntawm microcracks. Thaum qhov tawg tau nthuav dav, ua ke nrog kev sib txuas ntawm cov hlau molten thiab rov ua dua txhua yam kev ntxhov siab, nws yuav ua kom nrawm nrawm ntawm qhov tawg.
Ntxiv rau cov laj thawj saum toj no, lwm cov ntaub ntawv tsis ua hauj lwm kuj tseem tuaj yeem tshwm sim thaum lub sij hawm tuag casting txheej txheem, xws li tuag casting pwm tsis ua hauj lwm thiab tuag casting tshuab tsis ua hauj lwm. Yog li ntawd, hauv kev tsim khoom tiag tiag, nws yog qhov yuav tsum tau ua qhov teeb meem thiab kev tiv thaiv raws li qhov xwm txheej tshwj xeeb.