Nyob hauv kev tuag casting ntau lawm, tuag casting tshuab, tuag casting alloy thiab tuag casting tuaj pwm yog peb lub ntsiab. Tuag casting txheej txheem yog peb lub ntsiab ua ke nrog cov khoom siv ua ke thiab siv cov txheej txheem. Cov txheej txheem ntawm cov xim hlau sau hauv kev tuag casting ntau lawm yog ib txoj hauv kev uas muaj ntau yam sib txawv ua ke. Ntawm cov ntau yam uas cuam tshuam rau kev puv, feem ntau yog kev ceev, kev kub ceev thiab lub sijhawm, thiab lwm yam, los ntawm kev khiav ceev kom txo tau thiab tshem tawm lub siab qhov chaw hauv huab cua, atomization khiv qhov seem roj; los ntawm kev tswj siab, nce qhov khoom ntom tshuaj, txo qhov tsim ntawm shrinkage; los ntawm kev tswj lub sijhawm, yog li ntawd cov khoom yuav tsum tsis txhob tsim kho tsis xws thiab lwm yam kev tsis raws cai. Siv cov kev laij cov txheej txheem tsis zoo rau kev pwm, tuag casting tshuab nruab nrab ntawm txoj kev sib txuam.
Yog li no, tsuas yog cov txheej txheem tsis yog rau kev xaiv, kev tswj thiab kev kho, kom ntau yam ntawm cov txheej txheem tsis tau raws li qhov xav tau ntawm casting ntau lawm thiaj li ua kom lwm yam kev mob zoo, tsim tsim nyog tuag casting. Tsab ntawv xov xwm no los ntawm lub tuam txhab DCC280 txias chamber tuag casting tshuab uas ua los ntawm lub twj tso kua mis cov khoom siv (nrog rau cov duab) ua piv txwv, cov lus qhia luv luv rau cov khoom tsim tsis ua ntawm qhov kev laij zauv (Table 1 for the parameters).
Ua ntej, qhov tsis tau
(1) qis qis
Lub plunger siv cov kua txhuas tso rau hauv cov chamber rau hauv qhov chaw nkaum sab hauv kom cov txheej txheem ntawm cov roj ntsha tuaj rau hauv qhov chaw ntawm lub plunger thiab lub qhov rooj yog qhov kev ceev qis (feem ntau 0.1 -0.3m / s) . Txhim teeb meem kom tiv thaiv tau cov pa sib xyaw, kom tsis txhob muaj cov dej kub poob, ua rau kom muaj quas tawv.
(2) kev kub ceev ceev
Lub plunger presses aluminium daws tag nrho rau hauv xovxwm chamber (feem ntau 1.5-2.5 m / s). Ua ntej cov hmoov txhuas yuav pib ua kom zoo, cov kua dej ntws ntawm cov txhuas yog qhov zoo, qhov kev sib kis ceev kuj zoo, yog li lub sijhawm luv luv, nws yooj yim dua yog kom tau zoo zoo castings.
(3) kev khiav tsheb khiav ceev ceev
Rau txhuas thiab magnesium alloys, qhov chaw sib kis ntawm txhua lub sijhawm txhaj tshuaj yog qhov tshwj xeeb tshaj yog, xws li thaum lub sijhawm qis rau hauv high-speed, high-speed thaum lub supercharger, thiab lwm yam.
Qhov ob, lub siab tsis
(1) pov thawj siab
Casting siab yog qhov zoo tshaj plaws hauv kev ua kom tau qhov kev cog lus thiab kev sib txuas ntawm lub castings, thiab lub ntsiab ntawm kev tuag casting yog txawv los ntawm lwm txoj kev casting. Qhov luaj li cas nyob ntawm lub qauv thiab lub zog ntawm tuag casting tshuab.
(2) nce fais fab
Thaum tuag casting txheej txheem, cov hlau ntxhib ntawm cov kab noj hniav pauv mus rau qhov kev tawm ntawm lub plunger rau ntawm lub zog ntawm phab ntsa ntawm cov pwm kab noj hniav.