Ua ntej, ua tib zoo siv ib txheej ntawm pwm tso tawm tus neeg sawv cev rau lub log tsheb qauv kom paub meej tias qhov chaw tsis sib xws, thiab tom qab ntawd tshuab ziab nrog rab phom cua. Tom ntej no, muab cov qauv ua tiav rau hauv ib lub thav duab ib puag ncig los ntawm cov hlau phaj. Ib yam li ntawd, cov hlau phaj kuj yuav tsum tau coated nrog pwm tso tawm tus neeg saib xyuas kom yooj yim demolding.
Tom ntej no, npaj silicone thiab curing agent. Silicone yog cov kua dej ntws, cov khoom A yog cov khoom siv silicone, thiab cov khoom B yog cov tshuaj tua kab mob. Piv txwv li, noj 100 grams ntawm silicone thiab ntxiv 2 grams ntawm curing agent. Cov kauj ruam tseem ceeb yog sib tov kom huv si kom ntseeg tau tias tsis muaj qhov thaiv kev kho qhov tshwm sim, txwv tsis pub nws yuav cuam tshuam rau lub sijhawm ntev thiab tus naj npawb ntawm cov pwm rov ua pwm ntawm cov pwm, thiab txawm tias ua rau pwm puas. Tom qab sib tov sib npaug, nqus nws kom tshem tawm cov npuas, tab sis ua tib zoo saib xyuas lub sijhawm, feem ntau tsis pub dhau 10 feeb, kom tsis txhob ua kom ntxov ntxov ntawm silicone.
Tom qab ntawd, maj mam ncuav cov kua nplaum silicone npaj rau hauv pwm raws li qhov chaw txhaj tshuaj ruaj khov, thiab maj mam co nws kom tshem tawm cov cua sab hauv. Tom ntej no, cia cov kua nplaum ua kom tiav hauv 120 feeb. Nyob rau lub sij hawm no, npaj 1000g ntawm gypsum hmoov thiab ntxiv dej, thiab txhaj rau hauv lub pre-faib ntoo ncej kom txog thaum nws puv. Tom qab ntawd, tos 20 feeb thiab tshem tawm cov ncej ntoo kom tiav cov pwm ua.
