Feem ntau, lub neej muab kev pab cuam ntawm lub thawv noj su yas yog li ntawm 3-5 xyoos.
Tom qab siv sijhawm ntev, cov khoom yas yuav tshwm sim kev laus, nkig thiab lwm yam tshwm sim, qhia txog lub neej txee yog kom ntseeg tau tias cov khoom siv yas tuaj yeem ua yeeb yam zoo dua.
Yog tias nws' s tsis yog cov hnab ntim su yas pov tseg, nws tuaj yeem siv tau ntau zaus, tab sis nws tuaj yeem siv' t siv tau ib zaug xwb. Nws nyob rau ntawm qhov ib puag ncig nws siv. Cov khoom yas muaj lub neej txee. Koj tuaj yeem them sai sai rau cov lus qhia txog cov khoom;
Nws' s tsis yog lub thawv noj su hnab yas nrog lub txee neej ua haujlwm tau' t siv tau. Ntev npaum li nws siv nyob rau hauv qhov kub thiab txias ib puag ncig cim rau hauv phau ntawv qhia, nws yeej' t rhuav tshem cov tshuaj lom, thiab nws yeej' Nws' s tsuas yog hais tias cov yam ntxwv lub cev ntawm cov khoom yuav raug muab tshem tawm, uas yuav cuam tshuam rau txoj haujlwm thiab kev siv cov khoom. Yog li ntawd, nws' s zoo dua tsis siv cov khoom yas hloov rooj.
Kev khaws cia ntawm cov khoom siv foamed yas rooj noj mov yuav tsum xav txog qhov teeb meem ntawm kev tiv thaiv kev tua hluav taws, thiab nws yuav tsum tau hais meej meej rau hauv cov khoom ntim cov lus qhia. Tsis tas li ntawd, polystyrene muaj qhov tsis zoo thaum tshav kub tsis zoo, thiab nws yuav deform thiab tso cov teeb meem tshuaj molecular thaum kub siab tshaj 70 ℃.
Thaum ntxuav lub thawv noj su yas, siv daim txhuam cev mos es tsis txhob siv cov ntaub lub tais tawv, kom tsis txhob khawb thiab cuam tshuam ntawm lub thawv ntawv noj su yas. Thaum tu lub silicone liner nruab nrab ntawm lub hau thiab lub thawv ntim, thov tsis txhob rub nws nrog lub zog, txwv tsis pub nws yuav tawg lossis ntev.
