Cov kev xav tau rau kev kho xuab zeb thaum lub sij hawm xuab zeb casting

Hauv cov txheej txheem xuab zeb casting, muaj qee qhov tseem ceeb rau kev tuav cov xuab zeb kom ntseeg tau tias cov xuab zeb zoo thiab cov castings tau txais. Nov yog qee qhov yuav tsum tau ua:

1. Cov xuab zeb qhuav: Cov xuab zeb yuav tsum qhuav thiab yuav tsum tsis txhob muaj dej noo. Cov xuab zeb ntub dej yuav ua rau muaj qhov tsis xws luag ntawm qhov casting, thiab tseem tuaj yeem ua rau muaj teeb meem xws li porosity thiab warping.

2. Cov xuab zeb huv: cov xuab zeb yuav tsum tau ntxuav kom tshem tawm cov impurities thiab cov organic teeb meem. Cov impurities thiab cov organic teeb meem yuav muaj kev cuam tshuam tsis zoo rau qhov zoo ntawm cov casting thiab tej zaum yuav ua rau muaj qhov tsis xws luag ntawm cov xuab zeb pwm.

3. Tsim nyog cov xuab zeb granularity: lub granularity ntawm cov xuab zeb yuav tsum tau raws li cov kev cai tshwj xeeb los xyuas kom meej qhov zoo ntawm cov xuab zeb thiab lub zog ntawm cov pwm. Cov xuab zeb uas ntxhib dhau los yog zoo heev tuaj yeem ua rau muaj kev cuam tshuam tsis zoo rau molding thiab pouring.

4. Zoo xuab zeb viscosity thiab plasticity: viscosity thiab plasticity ntawm cov xuab zeb yog qhov tseem ceeb rau kev tsim cov xuab zeb ruaj khov. Cov khoom siv xuab zeb yuav tsum muaj kev sib raug zoo thiab plasticity thiaj li tswj tau cov duab thiab ruaj khov ntawm cov xuab zeb pwm.

5. Tsim nyog tus nqi ntawm cov xuab zeb additives: Raws li cov kev xav tau tshwj xeeb casting, nws yuav tsum tau ntxiv ib co auxiliary agents nyob rau hauv cov xuab zeb, xws li binders, plasticizers, pigments, thiab lwm yam. Hom thiab ntau npaum li cas ntawm cov additives no yuav tsum tau kho rau ua tau raws li cov kev cai casting tshwj xeeb.

6. Kev tswj cov xuab zeb zoo: Hauv cov txheej txheem ntawm kev yuav khoom thiab siv cov xuab zeb, yuav tsum muaj kev tswj xyuas zoo thiab kev tshuaj xyuas. Xyuas kom meej tias cov xuab zeb zoo raws li tus qauv thiab tsis siv cov xuab zeb tsis zoo los yog tsis huv.

7. Sand recycling: Qhov twg ua tau, cov xuab zeb rov siv dua thiab rov siv dua yuav tsum tau ua. Los ntawm kev kho kom zoo thiab kev tshuaj ntsuam xyuas, cov xuab zeb pov tseg yog rov ua dua tshiab, txo cov nqi thiab cov peev txheej pov tseg.

Nws yuav tsum raug sau tseg tias qhov tshwj xeeb tuav cov xuab zeb yuav txawv nyob ntawm seb hom thiab cov khoom siv ntawm cov casting, txoj kev npaj thiab txheej txheem ntws ntawm cov xuab zeb pwm. Yog li ntawd, nyob rau hauv cov txheej txheem casting, yuav tsum tau ua raws li cov xwm txheej tshwj xeeb los xyuas kom meej tias kev kho cov xuab zeb ua tau raws li qhov yuav tsum tau ua.