1) Kev nqis peev casting. Nws yog ib txoj hauv kev rau kev nrum uas tsis yog txiav lossis txiav qis dua nrog rau qhov siab dua qhov tseeb thiab qis dua qhov ntxhib qhov tseem ceeb los ntawm kev siv cov qauv fusible thiab cov khoom ua haujlwm zoo (cov pwm).
2) Hlau pwm casting. Nws yog ib txoj hauv kev siv cov hlau tuaj yeem ua kom txias txias ntawm cov castings, paub ntau yam castings hauv ib hom, thiab tau txais cov castings nrog ntom cov qauv crystalline.
3) Siab casting. Nws yog ib txoj hauv kev kom tau txais cov khoom pov thawj los ntawm kev hloov pauv thiab ua kom khov thiab ua kom muaj zog ntawm cov kua ua kua, yog li cov kua ua kua tau ntim rau hauv cov pwm nyob rau hauv siab thiab nrawm nrawm, thiab tau tsim thiab crystallized hauv siab.
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