Kev faib tawm ntawm cov khoom siv raw rau melamine tableware

Cov tais diav melamine yog ua los ntawm melamine resin hmoov los ntawm kev cua sov thiab tuag-casting. Raws li qhov sib piv ntawm cov khoom siv raw, nws cov pawg tseem ceeb yog muab faib ua peb qib, A1, A3 thiab A5.

Cov khoom siv A1 melamine muaj 30% melamine resin, thiab 70% ntawm cov khoom xyaw yog cov khoom ntxiv, hmoov txhuv nplej siab, thiab lwm yam. Txawm hais tias cov khoom siv ua noj ua haus uas tsim los ntawm cov khoom siv raw no muaj qee qhov ntawm melamine, nws muaj cov yam ntxwv ntawm cov yas, tsis tiv taus kub siab, yooj yim rau deform, thiab tsis ci ntsa iab. Tab sis tus nqi sib xws yog qis heev, nws yog cov khoom qis, haum rau Mexico, Africa thiab lwm thaj chaw.

Cov khoom siv melamine A3 muaj 70% melamine resin, thiab lwm 30% yog cov khoom ntxiv, hmoov txhuv nplej siab, thiab lwm yam. Cov xim ntawm cov tais diav ua los ntawm cov khoom siv A3 tsis txawv ntawm cov khoom siv A5. Tib neeg yuav tsis paub qhov txawv thaum xub thawj, tab sis thaum cov tais diav ua los ntawm cov khoom siv A3 siv, nws yooj yim hloov xim, ploj thiab deform hauv qhov kub siab tom qab lub sijhawm ntev. Cov khoom siv raw ntawm A3 pheej yig dua li cov ntawm A5. Qee lub lag luam yuav ua txuj ua A5 li A3, thiab cov neeg siv khoom yuav tsum paub meej cov khoom siv thaum yuav cov tais diav.

Cov khoom siv A5 melamine yog 100% melamine resin, thiab cov tais diav uas tsim los ntawm A5 raw khoom yog cov tais diav melamine ntshiab. Nws cov yam ntxwv zoo heev, tsis muaj tshuaj lom, tsis muaj saj, khaws lub teeb thiab kub. Nws muaj qhov ci ntsa iab ntawm cov khoom siv ceramics, tab sis nws zoo dua li cov khoom siv ceramics ib txwm muaj.

Thiab tsis zoo li cov khoom ua los ntawm av nplaum, nws tsis yooj yim tawg thiab hnyav, yog li nws tsis haum rau menyuam yaus. Cov khoom siv melamine tsis yooj yim poob, tsis yooj yim tawg, thiab muaj qhov zoo nkauj heev. Qhov kub ntawm cov khoom siv melamine yog nruab nrab ntawm -30 degrees Celsius thiab 120 degrees Celsius, yog li nws siv dav hauv kev noj haus thiab lub neej txhua hnub.