Taug mus yog cov hnub tshwj xeeb thiab cov khoom siv ntuj tsim - cib, pob zeb, ntoo - tau siv rau kev tsim kho thiab kho vaj tse nyob. Ib nrab xyoo dhau los, txawm tias cov khoom siv hauv tsev tiav tau muaj kev nyab xeeb kiag li thiab tsis tau nce ib gram ntawm kev ua xyem xyav txog kev nkag mus rau lawv siv. Tam sim no, ntau thiab ntau dua Western thev naus laus zis tau siv hauv kev tsim kho, uas suav nrog kev siv phab ntsa qhuav, putties thiab ntoo panels. Thiab nws yog OSB-phaj, muaj kev phom sij rau kev noj qab haus huv los ntawm kev siv uas ua rau muaj kev sib tham nrog cov neeg zoo tib yam thiab cov kws tshaj lij.
OSB yog dab tsi?
OSB (Oriented Strand Board) yog cov khoom tsim los ntawm cov khoom siv raw (ntoo) los ntawm nias. Txhawm rau tsim cov laug cam, ib feem zoo (ntoo chips) yog siv, feem ntau nws yog pov tseg los ntawm kev tsim cov khoom siv hauv tsev los ntawm cov ntoo, thiab cov nplaum tshwj xeeb.
Nyob rau hauv ntau lawm, chips yog impregnated nrog nplaum thiab resins, tom qab uas ib tug slab ntawm qhov xav tau loj, tuab thiab txheej txheej yog tsim.
Yog tias cov ntoo feem ntau yog siv los tsim, vim li cas nws thiaj suav tias OSB-phaj ua rau tib neeg noj qab haus huv? Nws yog txhua yam hais txog cov tshuaj ntxiv, uas yog formaldehyde thiab lwm yam tshuaj lom neeg uas siv los txhim kho qhov ua haujlwm ntawm lub qhov cub.
kub slab strife
Ua ntej tshaj plaws, nws tsim nyog hais tias muaj qhov sib txawv tseem ceeb hauv ntau yam khoom. Lawv qhov kev faib tawm yuav tshwm sim raws li tus cim tshwj xeeb uas tsim los ntawm cov kev pabcuam huv huv thiab kis kabmob, thiab yog cov lus qhia ncaj qha rau kev siv. Txhawm rau kom nkag siab txog OSB cov laug cam twg tsis zoo, koj yuav tsum paub tias lawv qhov txawv ntawm qhov tseem ceeb yog dab tsi.
Lawv tuaj nyob rau hauv plaub hom thiab raug cim nrog tus lej ntawm 1 txog 4, uas qhia ncaj qha tias cov phaj ntub dej thiab ruaj khov npaum li cas, uas txhais tau tias muaj pes tsawg daim nplaum tau siv los ua nws.
Yog li, OSB-1 muaj cov dej noo tsawg (tsawg dua 20%) thiab siv rau kev ua haujlwm sab hauv. OSB-2 board yog qhov ruaj khov dua, nws tuaj yeem siv rau cov txheej txheem sheathing uas yuav muaj qhov hnyav hnyav, tab sis tsuas yog hauv chav qhuav. Hauv cov tsev uas muaj av noo ntau dua, cov rooj tsav xwm OSB no muaj kev phom sij rau tib neeg kev noj qab haus huv. OSB-3 thiab OSB-4 muaj qhov feem pua siab tshaj plaws ntawm kev ua siab ntev hauv kev sib raug zoo rau qhov chaw ntub dej thiab nce loads (15 thiab 12%, feem), tab sis feem pua ntawm cov co toxins uas lawv tso tawm yog qhov kev txiav txim siab dua.
Txhawm rau kom lub rooj tsavxwm muaj zog dua thiab tiv taus ya raws, ntxiv cov nplaum ntxiv rau nws thaum lub sijhawm tsim khoomtshuaj uas tso tawm toxins. Cov ntsiab lus ntawm phenols nyob rau hauv cov khoom ua los ntawm ntoo chips yog nruj me ntsis txwv, thiab cov chaw tsim tshuaj paus yuav tsum tau qhia nws tus nqi. Nws yog ib qho tseem ceeb rau cov neeg siv khoom kom paub tias lub qhov cub E1-cim muaj kev nyab xeeb rau kev siv sab hauv tsev. Tab sis chav kawm E2 OSB muaj cov tshuaj lom ntau ntxiv, nws siv tsuas yog rau cov tsev tsis nyob hauv tsev lossis sab nrauv ntawm cov tsev.
Puas muaj qhov txawv ntawm leej twg tsim?
Hauv peb lub tebchaws, feem ntau lees paub tias txhua yam Western zoo dua, txhim khu kev qha thiab nyab xeeb dua. Qhov tseeb, nws tsis yog ib txwm ua tau los txiav txim siab categorically. Qhov tseem ceeb tshaj plaws yog cov khoom lag luam muaj daim ntawv pov thawj zoo thiab, qhov tseem ceeb tshaj, ua raws li lawv. Nws yog nyob rau hauv no hwm tias cov khoom ntawm European lub teb chaws, lub teb chaws USA thiab Canada txawv los ntawm domestic sawv daws yuav.
Txhawm rau txiav txim siab txog kev nyab xeeb, koj yuav tsum kawm cov cim uas OSB pawg thawj coj nqa. Kev puas tsuaj rau tib neeg kev noj qab haus huv yuav raug txiav txim los ntawm kev ua raws li daim ntawv lo thiab qhov chaw siv (hauv tsev lossis sab nraum zoov).
Nws yuav tsum tau muab sau tseg tias txawm nyob rau hauv Western lub teb chaws muaj ntau txoj cai. Kev tsim khoom tau mus txog qib siab uas cov emissions ntawm phenol-formaldehyde yog qhov tsawg.
Hauv Tebchaws Meskas, Canada, nws yog kev cai rau kev txhim kho cov tsev uas siv cov txheej txheem thav duab, feem ntau OSB-phaj ua cov phab ntsa thiab muab faib. Kev puas tsuaj rau tib neeg kev noj qab haus huv raug coj mus rau hauv tus account, thiab rau lub hom phiaj no, ntau hom phaj yog siv rau sab hauv tsev thiab sab nraum zoov.
Yog li panels rau cladding facades ntawm lub tsev, ru tsev, floorings yog thickened, muaj ib tug ribbed nto thiab nqi me ntsis ntxiv.
Hauv Tebchaws Europe, cov qauv no tsis yog tsim tawm, tab sis kev siv ntau hom slabs tau saib xyuas nruj heev, txwv qee cov chav kawm rau kev tsim vaj tsev nyob.
Nyob zoo rau lub cev
Ntau tus xav paub tias OSB tuaj yeem ua rau tib neeg noj qab haus huv li cas. Qhov cuam tshuam ntawm cov pa taws uas nws tawm, pom qhov muag tsis pom, txawm li cas los xij yog qhov hnyav heev.
Kev nqus pa tsis tu ncua ntawm huab cua uas muaj phenol muaj ntau qhov tsis zoo. Cov tshuaj no yog cov carcinogen uas lom txhua lub cev ntawm tib neeg lub cev.
Kev khaus ntawm daim tawv nqaij thiab hauv lub ntsws tsuas yog thawj qhov cim qhia ntawm kev lom los ntawm cov pa phem. Kev nyob mus ib txhis hauv ib puag ncig ua rau muaj kab mob loj ntawm lub plawv, lub paj hlwb, oncology.
Cov kab mob no tshwm sim los ntawm ntau yam tsos mob. Nws yog ib qho tsim nyog yuav tsum xyuam xim rau sab hauv ntawm chav tsev, nrog rau cov khoom siv los ntawm lub tsev tsim, yog tias cov neeg hauv tsev neeg feem ntau yws yws ntawm qhov tsis xis nyob, xeev siab, kiv taub hau, lethargy. Tag nrho cov no tuaj yeem yog cov tsos mob ntawm phenol-formaldehyde vapor lom. Yog li ntawd, qee zaum OSB-phaj yog qhov txaus ntshai rau tib neeg kev noj qab haus huv.
Kev txheeb xyuas qhov chaw ntawm phenol
Tsuas yog cov kws tshaj lij tuaj yeem ua qhov kev tshawb fawb tag nrho ntawm huab cua, nrog rau cov khoom siv sab hauv thiab lwm qhov chaw uas yuav muaj cov khoom phom sij. Lawv txoj hauj lwm yog ua tshuaj ntsuam xyuas huab cua thiab impurities hauv nws.
Nws tsim nyog hais tam sim ntawdtias nws tsis yog ib txwm OSB pawg thawj coj saib uas yog tus ua txhaum ntawm txhua yam teeb meem. Phenol-muaj cov ntsiab lus tuaj yeem pom txawm tias nyob hauv cov khoom zoo li kev nyab xeeb. Nws tuaj yeem yog rooj tog, textiles (cov ntaub pua plag ua los ntawm cov khoom siv tsis yog ntuj), cov khoom zoo nkauj thiab cov khoom ua si menyuam yaus.
Yuav kom txo tus nqi ntawm lawv cov khoom, cov tuam txhab, alas, tsis txhob thuam ib qho kev ua tiav lawv lub hom phiaj, thiab yog li feem ntau cov khoom pheej yig yog fraught nrog txaus ntshai - qhov no yog qhov muaj tseeb hnyav.
Yuav ua li cas txo qhov cuam tshuam ntawm cov tshuaj phem rau lub cev
Yog OSB-phaj siv rau hauv kev tsim kho, nws yuav tsum xaiv cov khoom zoo, qhov tsawg kawg nkaus ntawm chemistry tau siv rau hauv cov txheej txheem ntau lawm. Muaj kev tiv thaiv ntxiv thiab txoj hauv kev yooj yim rau txhua tus.
Ua ntej ntawm tag nrho, nws yog qhov tsim nyog los tsim kom muaj kev ruaj ntseg. Qhov kub siab ua kom tso pa tawm. Qib ntawm cov av noo hauv chav kuj tseem ceeb. Phenol dissolves nyob rau hauv dej, yog li ntawd, thaum lub tyrsoplite tau ntub, nws tso tawm nce. Nws yog qhov zoo dua los siv cov qauv kho nrog cov primers tshwj xeeb rau cov chav uas dej nyab tuaj yeem ua tau, lossis nce qib ntawm cov dej noo hauv huab cua.
Nws tsis pom zoo kom sheathe OSB-phaj hauv cov chav uas muaj cua tsis zoo. Txawm tias muaj kev nyab xeeb npaum li cas ntawm cov khoom, nws tseem emits cov teeb meem tshuaj, thiab txawm nyob rau hauv me me concentration lawv cuam tshuam rau tib neeg lub cev. Kev ua pa tsis tu ncua tuaj yeem txo qhov muaj ntau yam tshuaj lom neeg hauv huab cua kom tau txais kev txwv.
Puas muaj OSB pawg thawj coj saib kev nyab xeeb?
Muaj phenol-dawb OSB ntawm lub khw. Puas muaj kev phom sij rau kev noj qab haus huv los ntawm nws? Ntawm chav kawm, ib tug tsis tuaj yeem vouch rau tag nrho cov khoom ntawm woodworking nroj tsuag. Txuas cov khoom me me ntawm cov ntoo ua ke kom lawv muaj zog tiv thaiv kev ntxhov siab, kev hloov pauv huab cua tseem tsis tuaj yeem.
Qee lub tuam txhab tsis siv formaldehyde hauv cov nplaum, tab sis qhov no tsis tau txhais hais tias lwm yam tshuaj uas tsis tau kawm tiav thiab tsis raug kuaj xyuas kev noj qab haus huv muaj kev nyab xeeb dua.
Ib yam ntxwv ntawm cov tshuaj lom neeg ntawm phenol pawg yog tias lawv tuaj yeem tso tawm rau xyoo. Qhov xwm txheej thaum muaj evaporation rau qee lub sijhawm, thiab tom qab ntawd lawv ploj mus, tsis muaj tseeb nrog phenols. Cov tshuaj yuav raug tso tawm rau saum huab cua thiab tom qab ntawd nkag mus rau hauv lub cev thoob plaws hauv lub neej ntawm cov khoom.
txiaj ntsig ntawm kev siv
Txawm li cas los xij, OSB cov laug cam muaj tshuaj lom thiab txaus ntshai npaum li cas, lawv txoj kev siv tau nce siab nyob rau txawv teb chaws thiab hauv CIS lub teb chaws. Cov lus piav qhia yooj yim heev.
Cov txiaj ntsig kev lag luam, kev yooj yim ntawm kev siv, kev ua haujlwm ntev ntawm cov ntoo ua vaj tse yog qhov zoo heev. Dab tsi yog lwm yam khoom siv lub tsev no muaj zog?
- versatility - phab ntsa yog sewn nrog slabs, pem teb yog pw thiab siv los ua ru tsev khoom;
- resistance - nrog rau kev teeb tsa kom raug, OSB tsis raug ya raws, corrosion, tawg, tsis muajKev phom sij uas nas thiab kab mob yuav pib hauv qhov cub;
- yooj yim los tsim - cov khoom no yooj yim txiav, nrawm, tsis hnyav, yog li cov cuab yeej siv yooj yim thiab kim tsis tas yuav tsum tau thauj mus los thiab siv ntxiv.
Cov Lus Qhia
summing up, Kuv xav paub: puas muaj tseeb tias OSB boards muaj teeb meem rau kev noj qab haus huv? Tsis muaj qhov tsis ntseeg tias cov khoom siv no yuav tsum tau kho nrog ceev faj, ua tib zoo kawm txog leej twg tsim nws thiab nyob rau hauv cov xwm txheej twg, cov ntaub ntawv twg tau siv rau qhov no. Tab sis, mus txog qhov teeb meem nrog txhua lub luag haujlwm thiab kev saib xyuas, nws muaj peev xwm tiv thaiv lub tsev los ntawm kev phom sij ntawm formaldehyde. Qhov no tau lees paub los ntawm kev ua haujlwm nplua nuj ntawm nws txoj kev siv ntau xyoo thiab qhov muaj koob meej zuj zus ntawm cov neeg tsim khoom.
