MDF: nws yog dab tsi thiab yuav ua li cas siv cov khoom no?

Nyob rau hauv lub kho thiab kev tsim kho ntawm lub tsev vaj tse siv ib tug ntau ntawm cov ntaub ntawv, tab sis nyob rau hauv lawv muaj cov neeg uas tau them lawv tus kheej nrog unfading hwjchim ci ntsa iab tsuas. Noj, piv txwv li, ntawm chipboard. Yuav ua li cas yog nws?

Lub npe stands rau "Fiberboard". Daim ntawv cov ntaub ntawv uas, zus tau tej cov uas yuav siv sij hawm qhov chaw los ntawm txoj kev compression ntawm ntoo chips nrog rau qhov sib ntxiv ntawm ntau hom ntawm losis tswvyim dabtsi Cheebtsam.

Raws li ib tug txoj cai, nyob rau hauv qhov tseeb incarnation ntawm cov khoom cua polymeric resins siv. Nyob rau hauv tas li ntawd, lawv muaj xws li ntau yam tshuaj, conferring hydrophobic thaj chaw ntawm lub tiav lawm cov khoom siv.

Cov uas pheej yig tshaj (thiab yog li ntawd ntau siv) ceresin thiab paraffin. Feem ntau, ib feem ntawm cov ntxiv antiseptic additive. Vim hais tias ntawm lawv, puab yog suab hlob rau fiberboard. Yuav ua li cas yog nws? Feem ntau cov feem ntau, xws li antiseptic additives yog cov phenols, uas ntse tiv thaiv cov kev loj hlob ntawm fungi thiab txov lawv cov noob kab mob.

Ua fibreboard ob txoj kev: qhuav thiab ntub dej. Txawm li cas los, muaj muaj tsis ntev los no intermediate txoj kev: ntub dej qhuav thiab semi-qhuav.

Cov uas pheej yig tshaj txoj kev yog qhuav thaum fiberboard (nws yog dab tsi, peb tau hais tias) yog tsim los ntawm ntoo tej daim nyob rau tej yam kev mob thiab tsis muaj ntxoov nws nrog dej. Nias phaj yog ua thaum muaj kev kub kub thiab siab.

Cov uas ua cov ntaub ntawv uas yog yus muaj los ntawm cov uas tsis muaj nqi, thiab yooj yim ntawm tseem ceeb porosity. nws ya raws cov ntsiab lus no tsuas yog 6-8%.

Ntub txoj kev muaj cov tib theem, tab sis nyob rau hauv lub pressing ntawm ntoo shavings yog xa, raug soaked nrog dej. Thaum tawm cov xovxwm chamber cov khoom yog txiav mus rau hauv ib tug neeg ntawv txheeb thiab yog xa mus rau lub tshuab ziab khaub ncaws. Tej fiberboard panels twb vaum hauv 70%. vim hais tias lawv txawv ntau phaus, tiam sis ntau check.

Lub semi-qhuav txoj kev yog zoo li tus thawj txoj kev piav saum toj no. Qhov txawv tsuas yog tias ua ntej thov kom compact swarf irrigated nrog dej kom noo cov ntsiab lus ntawm lub resulting cov ntaub ntawv uas yog 16-18%.

Ntub dej qhuav txoj kev txawv los ntawm tag nrho cov saum toj no hais tias cov thawj nti ntawm cov dej-impregnated phaj yog tsim, ces nws yog noj mus rau lub tshuab ziab khaub ncaws thiab xwb ces yog xa mus rau lub kub-nias txoj kev. Cov no ib tug plywood fiberboard, tug txheeb ze humidity uas zoo 0%.

Nco ntsoov tias peb ua tsis tau heev lawm, xa mus rau lub "chips". Lub fact tias cov chips los ntawm txoj kev tshwj xeeb cov cav tov, thawj muab tshuaj ntxuav qhov fibers uas twb tsim thiab npaj txhij ntaub panels.

Nyob rau hauv xyoo tsis ntev los, ntau npaum li cas feem ntau siv fiberboard tsau tshuaj. Nyob rau hauv lub chaw ua khoom ntawm xws panels rau lawv nto yog them nrog ib tug multilayer txheej. Nyob rau hauv thawj theem phaj yog them nrog ib tug tshwj xeeb primer txheej, kev tsim ib tug ruaj foundation. Nws sau txawv, xyaum li ib txwm nto ntawm tus ntoo.

Qhov no qhov cub yog yuav luag tsis ntshai dej thiab puas. Deg hardening nyob rau hauv cov ntaub ntawv no, ib tug tshwj xeeb cov kua roj vanish.

Yog li ntawd peb qhia koj txog fiberboard. Yuav ua li cas yog nws, tam sim no koj paub. Vim lub cheapness ntawm cov khoom thiab zog zog nws yog feem ntau siv tsis tsuas rooj tog, tab sis kuj nyob rau hauv kev tsim kho kev lag luam.