Rosin tuaj yeem siv los ua cov xim pleev xim tas li

Vim yog solubility, volatility, thiab lub hauv paus ntsiab lus uas rosin tuaj yeem ceev ceev rau hauv "muaj zog thiab pob tshab zaj duab xis" tom qab volatilization, cov neeg pleev kob feem ntau ua lawv tus kheej "taw drawing" kua los tiv thaiv daim duab thiab tiv thaiv "sketching" los ntawm rubbed. Ntawd yog, ib feem ntawm rosin hmoov, cuaj feem ntawm cawv, lossis ib qho hnyav piv ntawm xylene. Ua ntej, muab cov rosin tso rau hauv lub khob ntim zoo, ces ncuav cawv los yog xylene rau hauv nws, npog nws, thiab yaj nws ntawm lawv tus kheej tom qab ob hnub. Thaum siv, co zoo thiab ncuav rau hauv ib lub kaus mom, 20 centimeters deb ntawm qhov screen. Txau tusyees rau ntawm qhov screen, tshuaj tsuag txhua lub sijhawm, thiab evaporate txhua lub sijhawm. Tom qab ob peb feeb, nws yuav qhuav tag, thiab koj yuav tsis ntshai ntawm kev rub tawm yav tom ntej. Ceeb Toom: Rosin yuav tsum tsis txhob ntau dhau vim nws yuav tig daj thiab tsaus.