Cov khoom siv hauv tsev ua tshuaj yog ib qho ntawm lub tsev tshiab cov khoom siv uas tau muaj kev txhawb nqa thiab kev txhawb nqa los ntawm lub xeev. Tam sim no, qee tus qauv zoo tshaj plaws tau raug soj ntsuam rau kev tsim qauv engineering ntawm" hloov qib ntawm cov hluavtaws tawv pobzeb rau nqes hav" ;. Feem ntau ntawm cov qauv no yog tias lawv tsis ua raws cov duab tshiab thiab cov xim ci, tab sis sib koom ua ke nrog cov ib puag ncig ib puag ncig kom deb li deb tau raws li qhov kev ua tiav ntawm txoj haujlwm.
Cov ntaub ntawv thev naus laus zis ntawm" hloov qib ntawm cov hluavtaws tawv pobzeb rau nqes hav" yog feem ntau asphalt iav fiber pobzeb, asphalt ntsoov pobzeb, asphalt thermosetting pobzeb, hluavtaws cob pobzeb, thiab lwm yam cov ntaub ntawv no muaj qhov ua tau zoo sealing, kub txuag thiab lub zog txuag ua haujlwm, thiab lub sijhawm ntev los nag teeb meem uas tau plagued cov neeg nyob tom qab hloov tau yuav daws tau. Nyob rau hauv ntau hom tshuaj lom neeg lub tsev cov ntaub ntawv, kev tiv thaiv ib puag ncig super huab cua tiv taus hluavtaws cob pobzeb / PVC nthwv dej pob zeb (phaj) cov khoom lag luam nyob hauv txoj haujlwm tseem ceeb, vim tias nws lub teeb yuag, kev txuag thaum tshav kub kub, tiv thaiv corrosion, txhim kho dawb, yooj yim ntau lawm, kev tsim kho yooj yim thiab tus nqi tsim nyog. Nws yog dav siv hauv tsev khaws khoom, tsev vaj tsev, tsev khw ncaj ncees, tsev yooj yim thiab lwm teb. Txawm li cas los xij, vim tias tsis muaj cov ntaub ntawv PVC, cov PVC yoj vuas (pawg thawj coj) cov khoom lag luam yog thim thiab muaj cov laus tsis zoo. Tsis tas li ntawd, kev sib tw ntawm lwm cov khoom lag luam, xws li cov xim steel hlau, cov vuas xim, cov av nplaum liab, thiab lwm yam, tau txwv nws txoj kev txhim kho kom zoo. Ntau cov tuam txhab PVC corrugated nplais (phaj) cov lag luam yog ntsib cov kev sib txig sib zog tshiab. Khoom cua tawv yog qhov tseem ceeb ntawm cov yas, thiab nws cov ntsiab lus hauv plastics feem ntau 40% - 100%. Vim tias nws cov ntsiab lus siab, thiab cov xwm ntawm resin feem ntau txiav txim siab qhov xwm txheej ntawm cov yas, yog li cov neeg feem ntau suav cov resin ua cov lus sib txawv rau cov yas. Piv txwv li, PVC cob thiab PVC yas, phenolic cob thiab phenolic yas yuav tsis meej pem. Qhov tseeb, cov yas thiab yas yog ob lub ntsiab lus sib txawv. Resin yog ib hom ntawm cov khoom siv raw, uas tsis yog tsuas yog siv hauv kev ua cov yas, tab sis kuj yog cov khoom siv raw ntawm cov lo, adhesives thiab hluavtaws. Ntxiv rau qee qhov me me ntawm cov yas uas muaj 100% resin, feem ntau ntawm cov yas, ntxiv rau lub ntsiab feem cob, kuj yuav tsum tau ntxiv lwm yam tshuaj.
Kev ua lag luam zeem muag ntawm cov nplais hluavtaws yog zoo tib yam li cov khoom siv tshiab cov yeeb nkab, ntawm chav kawm, nws muaj kev sib raug zoo heev nrog cov khoom zoo nws tus kheej, tab sis tseem ceeb tshaj, kev lag luam tuaj yeem muaj kev txhim kho benign ntxiv kom thiaj li txhawb cov lag luam sib qhia ntawm cov nplais hluavtaws cob. Yog lawm, yog tias lub koomhaum tuaj yeem nqis peev qee qhov nyiaj rau kev tshawb fawb thev naus laus zis thiab kev tsim kho ntawm qhov pib ntawm kev txhim kho kev lag luam zoo heev, kuv ntseeg tias kev ua lag luam ntawm cov lag luam kuj tseem yuav ua tau zoo. Cov khoom ntawm cov khoom cua cob pob yog qhov zoo heev. Nws tsis tsuas yog muaj nuj nqi ntawm kev ua kom muaj cua sov, kev tiv thaiv thaum tshav kub kub thiab dej pov thawj, tab sis kuj tseem tshaj aseismic. Nws yog qhov khoom siv tau zoo tshaj plaws rau ntau lub tsev. Synthetic cob pobzeb tuaj yeem tsis tsuas yog muaj ntau qhov kev ua tau zoo, tab sis kuj tseem muaj peev xwm txhim kho kev lag luam loj heev. Kev tsim kho kev lag luam kev cia siab ntawm cov nplais hluavtaws pob zeb yog qhov zoo heev. Tam sim no, txoj kev ua lag luam feem ntawm cov nplais hluavtaws av nplaum kuj tseem nce ntxiv. Tsis tas li ntawd, qee qhov kev lag luam hauv tsev tau nqis peev ntxiv rau txoj kev tshawb fawb txuas ntxiv thiab kev txhim kho ntawm cov nplais hluavtaws nyom, thiab kev tsim kho tshiab ntawm cov khoom tshiab yuav muaj kev sib tw ntau dua.
Tus thev naus laus zis ntawm" PVC / ASA coextrusion wave phaj (pobzeb)" Tam sim no tau pib ua, uas muab txoj kev daws tshiab. Ntxiv rau kev khaws nws qhov qub, qhov thev naus laus zis tau ua rau muaj kev hloov ua rau huab cua tiv thaiv, tiv thaiv kev laus, muaj kev cuam tshuam thiab siab dhau los ua qhov kev saws me nyuam ntawm ASA engineering cov ntaub ntawv yas thiab PVC hluavtaws resin pobzeb cov ntaub ntawv co extrusion los ntawm kev siv tshuab tshwj xeeb Cov. Nws yog qhov hloov kho zoo tshaj plaws los hloov cov cuab yeej qub thiab muaj cov txiaj ntsig zoo ntawm kev nce qib. Tam sim no," hluavtaws nyom vuas" ru tsev kho kom zoo nkauj dej khoom (tshwj xeeb tshaj yog lub teeb pom kev zoo nkauj vov tsev dej khoom siv) yog lwm txoj kev lag luam. Lub hom phiaj ntawm" hluavtaws nyom vuas" yog los daws cov teeb meem ntawm cov rwb thaiv tsev tsis zoo, kev nkag mus tau yooj yim thiab tsis pom kev zoo ntawm lub nroog tiaj tiaj. Cov lus qhia ntawm cov khoom siv roj hmab vov tsev xaiv cov khoom siv yuav tsum muaj cov yam ntxwv ntawm lub teeb yuag, nplua nuj thiab xim xim, kev ua haujlwm zoo hauv dej, kev tsim kho yooj yim thiab tus nqi nruab nrab.