Lub khw muaj ntau yam khoom siv hauv tsev. Qhov kev xaiv tsis yooj yim. Fiberboard thiab chipboard yog cov npe zoo sib xws, tab sis cov khoom sib txawv thiab cov yam ntxwv ntawm cov khoom txiav txim siab sib txawv ntawm lawv daim ntawv thov.
khoom
Particleboard thiab fiberboard yog tsim los ntawm cov ntoo tawg ua ke nrog cov khoom siv hluavtaws lossis formaldehyde resin. Kev kawm tob txog kev sib xyaw ua ke yuav qhia qhov sib txawv ntawm chipboard thiab fiberboard.
Particleboard muaj cov ntoo shavings, uas tuaj yeem nkag siab los ntawm lub npe, sawdust thiab formaldehyde resin, uas ua raws li kev khi. Txhawm rau ua kom cov dej tsis haum ntawm chipboard, cov khoom siv nrog cov tshuaj tiv thaiv ya raws. Xws li txheej ua rau tus nqi ntawm chipboard.
Fibreboard (Fibreboard) yog tsim los ntawm cellulose fibers, ntoo hmoov av, hluavtaws polymers, dej thiab tshwj xeeb additives.
Qhov ntom ntawm cov slabs no yuav txawv. Qhov sib txawv ntawm chipboard thiab fiberboard kuj muaj feem xyuam rau cov khoom siv ntxiv uas tau qhia thaum lawv tsim khoom los muab qee yam ntxwv. Lub fiberboard muaj qhov nruab nrab tsis sib xwsceev, uas yuav tsum tau meej thiab complex ua, thiab kuj muaj damping zog. Hom fiberboard yog qhov txawv ntawm cov yam ntxwv nyob ntawm kev siv. Fiberboards yog cov dej tsis muaj zog, ua haujlwm ntev txog 30 xyoo. Lawv yog kev lag luam, yog ib qho ntawm cov nqi pheej yig tshaj. Chipboard yog cais raws li tus naj npawb ntawm cov khaubncaws sab nraud povtseg, raws li cov yam ntxwv ntawm txheej txheej, dej tsis kam, hluav taws kub thiab ntom. Kev nyab xeeb hluav taws thiab kev ua haujlwm zoo yog qhov zoo ntawm chipboard. Dab tsi yog qhov txawv ntawm fiberboard thiab chipboard - daim duab ntawm cov ntaub ntawv hauv cov ntsiab lus yuav yooj yim ua kom pom tseeb.
Production
Cov txheej txheem tsim khoom kuj txiav txim siab qhov sib txawv ntawm chipboard thiab fiberboard.
Los tsim chipboard, raw cov ntaub ntawv raug ntxuav, calibrated thiab qhuav ua ntej resin siv. Cov fibers yog tsim rau hauv ib lub lev thiab nias hauv qab cua sov los kho cov resin. Thaum cov resin hardens, lub slab yog txias thiab txiav mus rau qhov loj thiab sanded. Chipboard thickness tuaj yeem ncav cuag 25mm
Rau fiberboard, cov khoom siv raw yog softened los ntawm chav nyob rau hauv siab. Cov khoom siv ces dhau los ntawm cov phaj refiner, uas ua rau cov khoom tawg mus rau hauv cov khoom me me, tsim cov fiber ntau ntawm cov khoom loj. Resin feem ntau yog ntxiv raws li cov fiber ntau tawm ntawm lub refiner. Cov ntoo fiber ntau sib tov yog qhuav, tsim rau hauv ib lub rooj tsavxwm thiab raug kub nias. Fiberboard yog nyias dua li chipboard, los ntawm 2.5 mus rau 12 mm.
Daim ntawv thov
Ntoo vaj huam sib luag yog hom khoom siv hauv tsev uas davsiv los ua cov khoom siv raw rau kev tsim cov rooj tog zaum, txee thiab cov khoom siv tsis-load-cov kabmob. Ob hom kev sib xyaw vaj huam sib luag, chipboard thiab fiberboard, txawm hais tias feem ntau muab faib ua ke, zoo li yuav siv rau ntau qhov xwm txheej. Feem ntau, nruab nrab ntom fiberboard yog suav tias yog qhov zoo dua li chipboard.
Lub ntsiab ntawm fiberboard yog cov rooj tog tsim khoom. Fiberboards muaj cov khoom siv acoustic, yog li lawv tuaj yeem pom hauv pianos lossis lwm yam twj paj nruag, hais lus suab paj nruag. Qhov du, tiaj tus, zoo ib yam ntawm fiberboard ua rau nws yooj yim los ua kom tiav, thiab ntau yam tuaj yeem siv rau hom ntoo sib xyaw vaj huam sib luag dua li chipboard.
Particleboard yog siv rau hauv kev tsim kho rau cov plag tsev, nrog rau kev tsim cov rooj tog raws li cov txheej txheem.
Particleboard yog qhov tsis tshua muaj zog dua li fiberboard.
Qhov tsis zoo ntawm chipboard thiab fiberboard
Qhov txawv ntawm chipboard thiab fiberboard los ntawm MDF yog qhov yooj yim los txiav txim siab los ntawm kev txiav txim siab lawv qhov tsis txaus. Lub ntsiab qhov tsis zoo ntawm particle boards tuaj yeem txiav txim siab:
- tshuaj lom ntawm formaldehyde resins - tso tawm, lawv tuaj yeem tsim kev puas tsuaj rau kev noj qab haus huv:
- tsis txhob tuav cov hlua khi; Thaum lub sij hawm kev pab cuam, chipboards raug crushed thiab nws yog tsis yooj yim sua kom kho lawv thaum lub sij hawm kho;
- raug deformation, uas yog vim muaj xws li cov cuab yeej ntawm daim hlau ua friability;
- tsis ya raws resistant - kom nce noo noo tsis kam ntawm chipboard laminated;
- ua tsis ncaj raws sijhawm vim tev ntawm cov npoo ntawm daim hlau.
Los ntawmQhov tsis zoo ntawm fiberboard, qhov tseem ceeb tshaj plaws yog tsis yog ib puag ncig. Qee qhov teeb meem rau tib neeg kev noj qab haus huv tuaj yeem tshwm sim los ntawm cov resins nyob rau hauv muaj pes tsawg leeg ntawm fiberboard. Yog li, cov khoom no muaj qee qhov kev txwv rau cov menyuam yaus cov rooj tog.
MDF
Vim cov kev tsis txaus no, MDF boards tuaj yeem ua lwm txoj hauv kev rau lawv. Lawv du heev thiab muaj cov npoo txawm tias txiav.
Qhov no txhais tau hais tias cov txheej ntawm primer thiab ob peb lub tsho tiv no ntawm cov xim yuav zoo zoo, tawm hauv qhov chaw txaus nyiam tsis zoo li lwm cov khoom siv ntoo. MDF tsis warp los yog o nyob rau hauv high humidity tej yam kev mob thiab yog siv los ua cov khoom siv rau chav dej. Cov neeg tsim khoom txaus siab rau cov khoom siv no rau cov cua sov thiab lub suab rwb thaiv tsev zoo. Tsis tas li ntawd, nws tuaj yeem raug ntsia hlau, nplaum, ntsia hlau, stapled, lossis doweled, ua kom muaj ntau yam zoo li ib daim phiaj.
Paub qhov sib txawv tseem ceeb ntawm chipboard thiab fiberboard thiab MDF, nws yooj yim dua los xaiv qhov yog.
