Nrog rau txoj kev loj hlob sai ntawm kuv lub teb chaws kev lag luam thiab kev txhim kho kev ua neej nyob ntawm cov neeg nyob hauv nroog thiab cov neeg nyob deb nroog, nws tau dhau los ua ib qho kev nyiam noj coj los ua tiav kev kho kom zoo nkauj sab hauv thiab rov ua dua tshiab.Txawm li cas los xij, cov vaj huam sib luag ntoo tau dav siv los ua cov khoom siv hauv kev kho kom zoo nkauj sab hauv thiab rooj tog zaum, yog li muaj teeb meem ntawm formaldehyde kuab paug.Yav dhau los, tib neeg cov nyiaj tau los ntawm kev lag luam tau qis, feem ntau ntawm kev kho kom zoo nkauj sab hauv tsuas yog ua ib feem xwb, thiab cov rooj tog zaum feem ntau hloov kho me me, yog li cov pa phem formaldehyde tsis yog qhov tseem ceeb thiab tuaj yeem zam tau.
Niaj hnub no, nws yuav luag ib txwm muaj rau cov neeg uas tsiv mus rau hauv lub tsev tshiab kom ua tiav kev kho dua tshiab thiab hloov tshiab rooj tog.Nyob rau hauv txoj kev no, cov tsub zuj zuj ntawm formaldehyde volatilization nce ntau heev, mus txog ib theem unbearable, ncaj qha cuam tshuam rau qhov chaw nyob ntawm cov neeg siv.Vim li no, kev tsis sib haum xeeb ntawm lub tuam tsev kho kom zoo nkauj thiab cov neeg siv tau dhau los ua ib qho teeb meem ntawm kev sib raug zoo, thiab cov khoom siv raw rau kev kho kom zoo nkauj lossis rooj tog zaum los ntawm kev ua lag luam, thiab tsis muaj txoj hauv kev los daws nws.Nrog rau kev txhim kho ntawm kev tiv thaiv ib puag ncig kev paub thoob plaws ntiaj teb, cov pa phem los ntawm formaldehyde roj tau mus txog qib uas yuav tsum tau them nyiaj rau.Vim li no, cov neeg ua haujlwm tshawb fawb thiab thev naus laus zis tau ua haujlwm ntau yam kev ntsuas thiab sim daws.Xws li kev txhim kho cov qauv tsim nyog ntawm urea thiab formaldehyde, lossis txawm siv formaldehyde scavengers, thiab lwm yam, tab sis lawv tsis yog ib qho kev daws teeb meem.Tsis tas li ntawd, cov khoom ntim khoom ntawm qee yam khoom lag luam, xws li zaub mov, tshuaj yej, luam yeeb, thiab lwm yam, tsis pub muaj formaldehyde.Yav dhau los, ntuj ntoo feem ntau yog siv.Vim yog kev ua raws li lub teb chaws txoj cai tiv thaiv cov peev txheej hav zoov, kev siv cov khoom ntim ntoo raug txwv.Thaum nrhiav lwm cov ntaub ntawv, cov ntoo ua vaj huam sib luag yog thawj qhov kev xaiv.Txawm li cas los xij, nws tsis yooj yim rau kev paub vim muaj kuab paug ntawm formaldehyde.Tag nrho cov no ua rau qhov kev thov kom tsis muaj kuab paug "ntsuab ntoo-raws li panels" ntawm cov txheej txheem.Lub hauv paus ntawm kev tso tawm cov pa roj formaldehyde yog cov nplaum siv hauv kev tsim cov ntoo-raws li panels - urea-formaldehyde resin.Qhov zoo tshaj plaws ntawm cov nplaum nplaum no yog cov khoom siv raw khoom muaj ntau, kev ua tau zoo, tus nqi qis, thiab tsis muaj kev hloov tam sim no.Txawm li cas los xij, urea-formaldehyde resin raug txwv los ntawm cov txheej txheem synthesis.Txawm hais tias cov mis zoo li cas, cov tshuaj tiv thaiv tsis tuaj yeem ua tau zoo.Thaum lub sij hawm tsim thiab siv cov khoom, yeej ib txwm muaj teeb meem ntawm ntau tshaj formaldehyde tso tawm thiab reacted, tsuas yog tus nqi.Yog tias cov txheej txheem synthesis rov qab los, cov roj formaldehyde yuav raug tso tawm ntau dua.Ntawm ntau lub tuam txhab ua vaj huam sib luag ntoo hauv peb lub tebchaws, cov tshuab hluavtaws hluavtaws ntawm urea-formaldehyde resin yog qhov qub, yog li nws tsis yog qhov xav tsis thoob tias cov ntoo-raws li panels nkag mus rau hauv kev ua lag luam ua rau muaj kuab paug loj.Tsis muaj cov kua nplaum uas tsis muaj formaldehyde, tab sis cov kua nplaum yog qhov tsawg lossis tus nqi kim.Raws li tam sim no ntawm cov ntoo-raws li cov vaj huam sib luag hauv kuv lub teb chaws, kev siv cov nplaum nplaum txhua xyoo yog kwv yees li 3 lab tons, uas nyuaj rau kev sib ntsib.Thiab cov khoom uas pheej yig tshaj plaws nyob rau lub sijhawm tam sim no tsuas yog urea kua nplaum.
Nws yog ib qho nyuaj rau reconcile qhov kev tsis sib haum xeeb ntawm kev txo cov pa phem, nqi thiab kua nplaum qhov chaw nyob ze yav tom ntej.Yog li ntawd, cov kws tshawb fawb hauv tsev thiab txawv teb chaws tab tom tshawb nrhiav lwm txoj hauv kev, uas yog, tsim cov ntoo ua vaj huam sib luag nrog cov txheej txheem tsis muaj kua nplaum.Ntau tshaj 30 xyoo dhau los, Soviet Union thiab Czech koom pheej ua tiav txoj kev tshawb fawb txog kev tshawb fawb thiab thev naus laus zis, thiab Czech koom pheej kuj tau ua cov khoom me me.Kuv tsis paub vim li cas kuv ho tsis kawm ntxiv?Tej zaum qhov laj thawj tseem ceeb yog qhov ua rau muaj kuab paug tsis zoo tsis nyiam cov neeg zej zog thaum lub sijhawm ntawd, thiab kev tsav tsheb ntawm kev xav tau poob, yog li nws tsis txaus siab los txhim kho cov txheej txheem ntau lawm.
Tam sim no kev paub txog kev tiv thaiv ib puag ncig tau mus txog qhov siab uas tsis tau pom dua, thiab tib lub sijhawm, hauv kev xyaum, cov neeg siv yeej tsis tuaj yeem dais nws.Txwv tsis pub, Nyiv yuav tsis tsim formaldehyde scavenger.Yog li ntawd, cov kws tshawb fawb hauv tsev thiab txawv teb chaws tau them nyiaj ntau rau kev tshawb fawb ntawm cov ncauj lus no, tau txais ntau txoj hauv kev, thiab ua tiav qee qhov txiaj ntsig.Txawm li cas los xij, tsis muaj leej twg tau tsim cov khoom lag luam loj los ua kom cov khoom nkag mus rau hauv kev ua lag luam.Txoj kev loj hlob ntawm cov kua nplaum-dawb ntoo-raws li panels yog qhov zoo tshaj plaws los daws cov kuab paug ib puag ncig, thiab nws kuj yog ib qho kev txhim kho.Tam sim no, muaj kev sib tw ntawm cov thev naus laus zis tshiab thiab lub sijhawm, leej twg muaj kev tshaj lij tshaj plaws, yooj yim tshaj plaws thiab yooj yim-rau-txhim kho thev naus laus zis yuav yog thawj tus tsim khoom tsim khoom thiab tuav lub khw.
Raws li gluing txoj kev xav tias cov nroj tsuag fibers tuaj yeem ua rau nws tus kheej-nplaum, uas tau lees paub los ntawm cov neeg ua ntej, los ntawm kev rov ua dua thiab kev ua kom zoo dua qub, kev ua tiav tau ua tiav hauv cov txheej txheem ntawm kev tsim cov fiberboard uas tsis yog kua nplaum.Qhov tseem ceeb ntawm kev kov yeej yog txhawm rau txhim kho kev ua haujlwm ntawm lub rooj tsavxwm tsis muaj kua nplaum thiab ua kom yooj yim rau cov txheej txheem kev ua haujlwm Nws tuaj yeem ua rau siv cov kab nruab nrab ntom ntom fiberboard uas twb muaj lawm los tsim cov nplaum tsis muaj fiber ntau yam tsis muaj kev hloov pauv rau txhua yam khoom siv (tsuas yog cov khoom siv ua kua nplaum. tsis siv).Lub zog txhua yam ntawm cov khoom yog sib npaug los yog siab dua li ntawm cov particleboard zoo tib yam, thiab cov dej tsis zoo yog tib yam li ntawm urea fiberboard.
Txij li thaum cov dej siv los ua "adhesive", nws tus kheej-nplaum quab yuam ntawm cov fibers yog ua tiav thaum lub sij hawm kub xovxwm txheej txheem, yog li cov dej noo ntawm cov slab yog siab dua li ntawm sizing slab, thiab kub nias lub voj voog yuav tsum tau txuas ntxiv. los xyuas kom meej tias cov tshuaj tiv thaiv tau ua tiav tag nrho, yog li cuam tshuam rau cov khoom lag luam qub, tab sis tsis muaj kev cuam tshuam rau kev lag luam tiag tiag.
1. Txuag cov nqi nplaum yog qhov txiaj ntsig ncaj qha thiab nce nyiaj tau los.
2. Cov khoom tsis muaj txheej txheej, tsis muaj xuab zeb, siv zog tsawg, thiab siv hluav taws xob tsawg thiab siv cov nqi siv abrasive.
3. Feem ntau ntawm cov dej hauv cov slab raug xa mus rau cov xovxwm kom evaporate, yog li ntawd ib feem ntawm lub convective tshav kub hloov nyob rau hauv lub tshuab ziab khaub ncaws yog hloov dua siab tshiab rau hauv kev sib cuag thaum tshav kub kub hloov, lub thermal efficiency yog zoo dua, thiab cov thee noj yog txo.Cov no yog cov txiaj ntsig ntxiv.
Rau peb cov khoom no ib leeg, txawm tias cov khoom tsim tawm txhua xyoo raug txo los ntawm 30,000 m3 mus rau 15,000 rau 20,000 m3, nws tseem tuaj yeem tsim cov nyiaj tau los ntawm 3.3 lab rau 4.4 lab yuan ib xyoo (nyob ntawm tus nqi ntawm cov kua nplaum).Dab tsi ntxiv, tom qab cov zis txo qis, cov khoom siv raw thiab kev siv hluav taws xob kuj raug txo los ntawm 30% mus rau 50%, cov khoom siv poob thiab cov nqi kho mob kuj raug txo, thiab tag nrho cov peev nyiaj ua haujlwm tau raug txo.Qhov no yog qhov txiaj ntsig indirect generated.Yog li ntawd, tag nrho cov nyiaj tau los tsis yog qis dua qhov qub tso zis, lossis ntau dua.Nws kuj yog ib qho yooj yim heev los tswj cov khoom qub, vim tias qhov muaj peev xwm ntawm txhua yam khoom siv ua ntej cov xovxwm kub tsis hloov, yog li nws tuaj yeem ua tau los ntawm kev ntxiv cov xovxwm kub thiab nws cov txheej txheem thauj, lossis hloov cov txheej txheem ntawm cov xovxwm. kub xovxwm.Tus nqi kho dua tshiab no yog qhov tsim nyog.
Qhov zoo tshaj plaws ntawm cov nplaum nplaum fiberboard yog qhov ua tiav ntawm kev tshem tawm cov pa phem thiab tus nqi qis, thiab nws txoj kev siv kuj tseem tuaj yeem txuas ntxiv mus rau cov khoom ntim khoom rau qee yam khoom uas tsis pub muaj kuab paug.Lub ntuj tsis xws luag ntawm glueless fiberboard: nws yog glued los ntawm nws tus kheej-nplaum quab yuam generated los ntawm cov tshuaj ua ntawm dej thiab fiber molecules.Cov fibers yuav tsum nyob ze, txwv tsis pub cov adhesion yuav raug txo, yog li qhov ceev yog siab dua li ntawm qhov loj me MDF.Qhov teeb meem no tsis pom zoo yog tias cov ntawv nyias nyias raug tsim.
DongguanMUMU Woodworking Co., Ltd.yog ib tug Suav suab-absorbing tsev cov ntaub ntawv chaw tsim tshuaj paus thiab tsum.Thovtiv tauj pebyog xav paub ntxiv!
Post lub sij hawm: Lub Xya hli ntuj-31-2023