Thaum kho lub tsev, cov lus nug feem ntau tshwm sim ntawm seb yuav xaiv dab tsi los sheathe hauv pem teb, phab ntsa thiab qab nthab. Qee tus qhia siv fiberboard, lwm tus - hardboard. Thaum kawg, koj yuav tsum txiav txim siab seb qhov twg yog qhov zoo tshaj rau koj.
Qhov txawv ntawm hardboard thiab fiberboard yog dab tsi? Qhov tseeb, nws yuav tsum nco ntsoov tias lawv yog ib qho thiab tib yam. Txawm hais tias ntau tus neeg tseem ntseeg tias cov no yog cov khoom sib txawv kiag li rau kev ua haujlwm tiav. Hardboard txawv ntawm lub npe nrov fiberboard nkaus xwb nyob rau hauv muaj zog ntxiv.
txheej txheem tsim khoom
Cov txheej txheem tsim khoom zoo ib yam li kev tsim khoom ntawm MDF. Ntawm no, ib yam nkaus, compressed plua plav yog siv, uas tau txais thaum lub sij hawm ua cov ntoo. Qhov txawv ntawm MDF yog nyob rau hauv tus txheej txheem nws tus kheej.
Rau fiberboard, siv txoj kev ntub dej. Hauv lwm lo lus, cov ntoo fibers yog thawj zaug steamed. Nws yog vim lub tshuab no ua rau cov ntawv nyias nyias.
Kev tsim khoom, pov tseg yog siv, uas tau txais thaum ua haujlwm ntoo. Cov khoom yog crushed thiab nyem nrog cov khoom tshwj xeeb. Tom qab ntawd, nws yog qhuav. Cov tshuaj tshwj xeeb ntxiv yog tov rau hauv pawg. Cov sib tov ces xa mus rau lub tshuab casting los tsim slabs.
Qhov tshwm sim yog cov tawv nqaij nrog cov dej noo siab - ntau dua 70%. Tom qab ntawd, cov hlau thiab cov khoom semi-solid yog nias ntawm qhov kub ntawm 130 txog 180 ° C. Raws li rau fiberboard ntawm insulating hom, lawv tsuas yog qhuav nyob rau hauv ib tug tshwj xeeb chamber nrog ib tug tsawg ntawm cov av noo. Tsis nias.
Fibreboard tuaj yeem ua los ntawm cov ntawv siv dua. Cov khoom tsis muaj tsawg dua qhov zoo thiab ruaj khov. Muaj ntau yam xws li:
- insulating;
- tas thiab insulating;
- hard;
- super hard.
Raws li qhov ntev, qhov ntev yog los ntawm 1.2 m txog 3.6 m, thiab qhov dav ntawm 1 m mus rau 1.8 m. Qhov tuab yog hws 0.3-0.8 cm.
Properties
Cov khoom thiab kev ntseeg siab ntawm hardboard nyob ntawm kev kho saum npoo, txheej txheem tsim khoom thiab ntau yam khoom siv. Durability nyob rau hauv ntau yam mob yog txiav txim los ntawm cov muaj pes tsawg leeg ntawm cov khoom. Piv txwv li, cov khoom siv ntxiv hauv qab no yog siv:
- Astringent muab tub lim. Qhov no yog hluavtaws cob. Kev saib xyuas tshwj xeeb yuav tsum tau ua thaum tuav cov khoom uas muaj phenol-formaldehyde.
- Polymer Cheebtsam. Xws li additives yog siv los ua kom muaj zog txhua yam. Piv txwv li, lawv siv pectol.
- Hydrophobes. Cov no yog cov khoom uas muaj cov nyhuv dej-repellent. Piv txwv li, lawv siv stearin, paravin, cerisin, rosin.
- Antiseptics. Cov khoom no tiv thaiv rotting ntoo, kev loj hlob ntawm pwm ntawm nws nto.
- Hluav taws kub retardants. Qhov no yogtxhais tau tias yog resistant rau hluav taws. Qhov no tso cai rau cov khoom siv tua tus kheej.
Lub ntsiab tseem ceeb tseem yog ntoo. Tus nqi ntawm cov muab tub lim thiab additives tsis ntau tshaj 7%. Hauv cov ntawv nyuaj tshwj xeeb, kwv yees li 1.3%.
Type of hardboard
Hardboard tseem yog tib lub fiberboard, tsuas yog lub zog ntawm cov khoom yog nce. Qee lub sij hawm soft fiber boards kuj hu ua hardboard, tab sis qhov no yog yuam kev. Cov khoom muab faib ua ntau yam.
Cov boards muaj cov cim hauv qab no:
- T - tsis muaj kev ua haujlwm ntxiv ntawm ob qhov chaw ntawm cov khoom.
- TP - sab nrauv yog pleev xim.
- TS - ib qho ntawm qhov chaw muaj cov khoom loj nrog kev sib cais zoo.
- TSP - nyob rau hauv rooj plaub no, 2 hom yav dhau los tau ua ke, uas yog, sab nrog zoo dispersion yog pleev xim rau.
- TV yog cov khoom siv nrog cov dej tsis zoo, thaum lub ntsej muag pem hauv ntej tsis muaj qhov ua tiav ntxiv.
- TSV tseem yog cov khoom siv tsis muaj dej, tab sis nrog kev sib cais zoo ntawm ib sab.
- NT - qhov no, lub hardness ntawm cov khoom tsis siab. Qhov no yog semi-hardboard.
- CT - superhard hardboard.
- STS kuj yog lub hardboard superhard, tab sis ib qho ntawm cov chaw muaj kev kho kom zoo dispersion.
Qee hom hardboard kuj tau kho nrog cov yeeb yaj kiab tshwj xeeb, kho kom zoo nkauj nrog cov ntaub ntawv ntuj. Cov phaj kuj tuaj yeem coatedvarnished.
Qhov txawv ntawm hardboard thiab fiberboard yog dab tsi
Koj tsis tuaj yeem cais cov ntsiab lus no. Hardboard yog ib qho nyuaj thiab super nyuaj hom fiberboard. Tab sis koj tuaj yeem tawm tsam cov qib mos ntawm fiberboard, uas yog cim "M".
Ua ntej, lawv muaj lub zog sib txawv. Rau cov fiberboards mos, qhov no yog kwv yees li ntawm 100 mus rau 500 kg / m³, thiab rau hardboard - los ntawm 550 mus rau 1100. Cov khoom uas cim "M" muaj ib tug loj tus naj npawb ntawm cov roj pores. Ua tsaug rau qhov no, cov khoom siv muaj cov thermal rwb thaiv tsev ntxiv.
Tab sis hardboard muaj cov qauv ntom ntom. Vim li no, nws tsis tuaj yeem siv los ua cua sov. Tab sis ntawm qhov tod tes, nws muaj txiaj ntsig zoo ntawm cov khoom siv dag zog.
Fibreboard yog siv los ua substrate rau txheej kawg ntawm phab ntsa thiab qab nthab. Nyob rau hauv cov ntaub ntawv no, xws li daim hlau yog siv los ua cua sov-insulating thiab suab nrov-insulating txheej. Tab sis hardboard yog qhov zoo tshaj plaws siv rau lub ntsej muag ntawm rooj tog.
Qhov tshwm sim yog dab tsi
Cov neeg tsis nkag siab cov ntaub ntawv hauv tsev feem ntau tsis to taub: yog hardboard yog fiberboard lossis chipboard? Nws tsim nyog hais cov hauv qab no: feem ntau, hardboard yog ib hom fiberboard cais. Cov no yog cov phaj nyuaj thiab super nyuaj. Lawv cov txheej txheem ntau lawm txawv me ntsis. Txhawm rau kom tau txais hardboard, rosin, tshuaj tua kab mob, paraffin thiab lwm yam tshuaj raug ntxiv rau qhov muaj pes tsawg leeg, uas yog npaj los txhim kho kev ua haujlwm ntawm cov khoom siv.
Txoj kev tsim khoom tib yam muaj thiabcov qib tshwj xeeb ntawm fiberboard. Muab qhov sib txawv ntawm lub zog ntawm cov ntaub ntawv, lawv tau siv ntau zaus.
Zoo kawg
Thaum xaiv fiberboard thiab hardboard boards, nws yog ib qho tsim nyog yuav tsum tau ua raws li cov kev cai rau kev siv cov ntaub ntawv thiab cov kev npaj yuav tsim. Yog tias koj muaj lus nug, nws raug nquahu kom sab laj nrog tus kws tshaj lij ntxiv. Cov yav tas yuav thaum kawg tshem tawm kev tsis ntseeg txog dab tsi yog qhov zoo dua rau xaiv - fiberboard lossis hardboard.
