MDF yog nrov heev vim nws du nto thiab yooj yim ua, tab sis qhov zoo ntawm cov laug cam nyob rau hauv kev ua lag luam txawv heev. Many buyers only focus on price, ignoring key indicators such as density, internal bonding strength, and formaldehyde release. Kab lus no qhia txog tsib qhov kev xav tsis zoo los pab koj xaiv qhov siab - zoo MDF.
Misconception 1: Tsuas yog tsom rau thickness, tsis ceev
Tib lub thickness tsis txhais hais tias tib lub load-cov kabmob muaj peev xwm. Rooj tog qib MDF qhov ntom yuav tsum siab dua lossis sib npaug ntawm 680 kg / m³; Yog tias nws qis dua 620 kg / m³, tus ntsia thawv tuav lub zog thiab lub zog zoo li qub yuav txo qis. Txawm hais tias lub teeb yuag MDF muaj qhov ntom ntom (550-620 kg / m³), nws tsuas yog tsim nyog rau cov xwm txheej tsis muaj teeb meem xws li rooj vaj huam sib luag lossis qab nthab.
Kev ntseeg yuam kev 2: Kev ntseeg tias "E1" yog qhov txwv ib puag ncig
E1 yog tus qauv yam tsawg kawg nkaus rau kev nkag mus rau hauv kev ua lag luam (tsawg dua lossis sib npaug rau 0.124 mg / m ³). Rau cov chaw nyob ze xws li cov me nyuam cov chav thiab chav pw, nws raug nquahu kom siv E0 (tsawg dua lossis sib npaug li 0.05 mg / m³) lossis CARB P2 lossis txawm tias formaldehyde dawb (MDI nplaum) cov khoom.
Misconception 3: Neglecting nto sanding raug
Zoo MDF nto sanding kam rau ua Tsawg dua los yog sib npaug rau 0.1 hli. Rough nto tuaj yeem ua rau kev siv xim ntau ntxiv los ntawm 20% -30% thiab yooj yim ua rau txiv kab ntxwv tev tshwm sim. Flatness tuaj yeem kuaj xyuas los ntawm kev kov lossis siv tus pas ntsuas.
Misconception 4: Tsis kuaj cov dej nqus thickness expansion npaum li cas
Tsau cov qauv hauv dej rau 24 teev, thiab qhov nthuav dav ntawm qhov siab -MDF zoo yuav tsum tsawg dua lossis sib npaug li 8% (tus qauv board) lossis Tsawg dua lossis sib npaug li 12% (nqus-cov ntaub ntawv pov thawj). Cov boards tsis zoo yuav nthuav tawm ntau dua 20% thiab muaj cov npoo xoob tag.
Misconception 5: Qhov muag tsis pom kev nrhiav cov qib nplaim hluav taws thaum tsis saib xyuas cov khoom siv tshuab
Qee cov nplaim taws- retardant MDF muaj qhov sib txuas sab hauv lub zog qis dua 0.4 N / mm ² vim muaj cov khoom siv ntau dhau, uas ua rau nws yooj yim tawg thaum ua haujlwm. Cov khoom uas muaj B-s2, d0 qib thiab kev sib txuas nrog lub zog loj dua lossis sib npaug ntawm 0.55 N / mm ² yuav tsum raug xaiv.
Kev yuav khoom (download tau)
- Thov cov neeg muab khoom siv los muab cov ntaub ntawv tshaj tawm thib peb - rau 6 lub hlis dhau los
- Xyuas seb cov xim ntawm cov txheej txheej tseem ceeb yog xim, seb puas muaj cov xim dub lossis delamination
- Paub meej formaldehyde emission qauv thiab hom nplaum
- Thov cov qauv rau qhov tseeb txiav thiab drilling kev sim
