Tuag casting, hu ua tuag casting, yog ib txoj kev casting uas pours molten alloy kua rau hauv lub siab chamber, sau cov kab noj hniav ntawm ib tug hlau pwm ntawm ib tug kub ceev, thiab solidifies lub alloy kua nyob rau hauv lub siab los tsim ib tug casting. Cov yam ntxwv tseem ceeb ntawm kev tuag casting uas paub qhov txawv ntawm lwm txoj kev casting yog kev kub siab thiab kev kub ceev.
① Cov hlau molten ua rau cov kab noj hniav nyob rau hauv siab, thiab crystallizes thiab solidifies nyob rau hauv siab dua. Qhov siab tshaj plaws yog 15-100MPa.
② Cov hlau molten sau cov kab noj hniav ntawm qhov ceev, feem ntau ntawm {{{0}}} m / s, thiab qee qhov tuaj yeem tshaj 80 m / s (cov kab ceev ntawm kab noj hniav nkag los ntawm lub rooj vag sab hauv - qhov ceev ntawm lub rooj vag sab hauv), yog li cov hlau molten yog Lub sij hawm txhaws yog luv heev, thiab cov kab noj hniav tuaj yeem sau tau li ntawm 0.01-0.2 vib nas this (nyob ntawm seb qhov loj ntawm qhov casting).
Tuag casting yog ib txoj kev precision casting. Qhov ntev ntev ntawm kev tuag castings cam khwb cia los ntawm kev tuag casting yog me me thiab qhov tseeb ntawm qhov chaw yog siab heev. Feem ntau, tuag castings tuaj yeem sib sau ua ke thiab siv tsis tau tig. Cov khoom tuaj yeem raug pov ncaj qha. Cov khoom me me xws li cov koob yees duab dav dav, cov tshuab ntaus ntawv, cov cuab yeej siv hluav taws xob thiab cov khoom siv, nrog rau cov khoom siv ntawm cov tsheb xws li tsheb, locomotives, thiab dav hlau, feem ntau yog tsim los ntawm kev tuag casting.
