Vim tias cov ntawv lim yuav tsum nyob rau hauv lub siab ntev thaum ua haujlwm, nws yog ib qho tsim nyog yuav tsum nrhiav txoj hauv kev kom muaj zog ntawm cov ntawv lim, txwv tsis pub nws yuav yooj yim rot.Yog li ntawd, cov ntawv lim dej yuav tsum tau ua tiav los ntawm "dipping" txheej txheem!
https://youtube.com/shorts/XyT4-CDDFzY?feature=share
Raws li cov txheej txheem sib txawv, nws tuaj yeem muab faib ua ob pawg: solidified lim ntawv thiab cov ntawv lim tsis kho.Kho cov ntawv lim dej feem ntau yog impregnated nrog phenolic resin, thiab tom qab ntawd ci ntawm qhov kub ntawm 150-180 degrees rau li 15 feeb los kho cov resin thiab ua kom cov ntse ntawm cov ntawv lim.Ntawm no "kho lim ntawv" tawm tuaj!
"Kho cov ntawv lim dej" yog kho nrog qhov kub thiab txias, thiab cov ntawv fibers yuav luag tag nrho los ntawm resin."Cov ntawv lim tsis-kho" feem ntau siv polyvinyl acetate resin ua tus neeg sawv cev impregnating, thiab nws tiav los ntawm dripping lawm tom qab impregnation.Yog li ntawd, lub hardness thiab nruj ntawm cov ntawv lim tsis zoo li "kho lim ntawv".Ntxiv mus, "cov ntawv lim tsis kho" yog ib qho yooj yim nqus dej thiab ua kom ntub dej, thiab tib lub sijhawm, nws qhov kub thiab txias kuj tsis zoo li "kho cov ntawv lim dej".Cov ntaub ntawv ntawm ob hom ntawv lim no zoo ib yam, tab sis cov txheej txheem impregnation tom ntej yog txawv kiag li!—— "Kho cov ntawv lim dej" yog pom tseeb zoo dua, tsis muaj dej tsis zoo, acid-resistant, tsis kub-resistant, kub-resistant, thiab alkali-resistant.
Pawelson® huab cua lim siv Ahlstrom lim ntawv, thiab cov ntawv lim tau raug kho thaum kub kub, txawm tias koj lub cav ua haujlwm hnyav, nws yuav nco ntsoov xyuas kom koj lub cav muaj kev ua haujlwm siab.
Post lub sij hawm: Feb-15-2023