Nyob ib ncig ntawm 65 degree
Cov tshav kub-resistant kub ntau yam ntawm cov tsiaj yas khob yog nyob ib ncig ntawm 65 degree. Thaum nws tshaj 70 degree, nws yog ib qho yooj yim rau deform thiab yuav tso tawm cov khoom ua yeeb yam zoo. Cov khob yas yuav deform, muag muag, muag muag lossis txawm yaj ntawm cov dej kub, yog li lawv tsis haum cov dej npau npau lossis lwm qhov kev kub siab ntev.
Txhawm rau txuas lub neej pabcuam ntawm cov khob yas yas, nws raug nquahu kom tsis txhob muaj cov kua dej ntev, xaiv cov kua nrog qhov kub thiab txias thiab haus kom sai li sai tau. Tsis tas li ntawd, tsis txhob ua kom sov tus tsiaj cov khob yas hauv microwave ncu lossis ncu kom tsis txhob tawg lossis deformation vim yog cov cua sov tsis sib xws. Hloov cov khob dej tsis tu ncua yog cov kev ntsuas tseem ceeb kom paub meej tias muaj kev nyab xeeb.
Ntxiv rau tus tsiaj, muaj lwm lub khob dej yas muaj nyob rau ntawm kev ua lag luam. Piv txwv li, pp (polypropylene) cov khoom muaj siab kub ua thiab cov tshuaj tiv thaiv, tuaj yeem tiv taus kub txog 120 degree, thiab haum rau dej kub. PPSU (polyphenylene sulfide) cov khoom siv zoo heev, nrog qhov kub thiab txias rau 180 degree rau 180 cov ntaub ntawv uas nyiam rau cov niam mis rau ntau tus niam. Xaiv cov kev tiv thaiv kub siab thiab tsis muaj kuab yas yas muaj kuab yas ua tau zoo dua kev haus dej haus.
