Lub raj mis yas ua los ntawm cov khoom sib txawv zoo li cov neeg ncaws pob uas muaj tus cwj pwm txawv - lawv qhov kev kam rau qhov kub txawv txawv:
PET (Lub raj mis dej ntxhia): 70℃cim qhov chaw nyab xeeb; Tshaj qhov kub no ua rau lawv soften thiab deform yooj yim.
HDPE (Lub raj mis mis): tuaj yeem tiv taus qhov kub thiab txias ntawm 100℃rau lub sijhawm luv luv, tab sis kom qhuav tas mus li, nws raug nquahu kom ua kom kub qis dua 80 degree.
PP (Microwave- Cov Thawv Khoom Noj Zoo): Tsuas yog cov yas uas muaj peev xwm tiv taus 120 degree; Txawm li cas los xij, lub sijhawm ziab yuav tsum tsis pub tshaj 30 feeb.
Peb Txoj Cai Golden rau Kev Nyab Xeeb kom qhuav
Preheat Test: Thaum siv lub tshuab ziab khaub ncaws thawj zaug, ua qhov kev sim khiav nrog ib lub raj mis ntawm 50℃rau 10 feeb.
Tiered Arrangement: Siv ntau-tiered khib system kom ntseeg tau tias huab cua kub ncig mus rau sab hauv ntawm txhua lub raj mis.
Lub Sijhawm Tswjhwm: Rau nyias- lub raj mis phab ntsa (<1 mm), 15–20 minutes of drying is sufficient; for thick-walled bottles, this can be extended to 30 minutes.
Tsis txhob ziab tam sim ntawd yog tias muaj cov no tshwm sim:
Lub raj mis qhib shrinks los yog deforms (qhia qhov kub thiab txias).
Misty dawb streaks tshwm rau saum npoo (qhia kev puas tsuaj rau cov qauv molecular).
Ib qho qab zib, cloying tsw yog tawm (qhia tias plasticizers tau pib leach tawm).
npuas los yog bulges tshwm nyob rau hauv lub hauv paus (xws li localized overheating thiab degradation).