Dab tsi yog qhov tseem ceeb ntawm kev siv loj-ntev ob-phab ntsa corrugated kav?
Yav dhau los, cov kav dej cement feem ntau yog siv hauv kuv lub tebchaws. Txawm li cas los xij, cov kav dej cement muaj ntau qhov tsis zoo uas nyuaj rau kev kov yeej. Ib qho yog tias cov pa phem tshwm sim los ntawm kev lag luam cement nyob rau hauv qhov txuas txuas mus rau ib puag ncig yog qhov hnyav heev, kev tsim khoom thiab kev siv hluav taws xob yog siab, thiab cov peev txheej raug pov tseg. Muaj cov cim qhia pom tseeb ntawm cov plua plav hauv cov txheej txheem tsim khoom, thiab peb cov khoom pov tseg uas tsim tawm yog qhov nyuaj rau kev lis kev cai thiab ua rau muaj kev phom sij rau lub ntuj tsim ntawm thaj chaw ib puag ncig. Qhov thib ob, cov kav dej cement yog qhov hnyav, tsis yooj yim rau kev thauj mus los, kev tsim kho, thiab kev siv tshuab ua haujlwm ntev, uas siv ntau lub zog thiab cov khoom siv thiab txo kev ua haujlwm. Thib peb, qhov kev sib txuas zoo yog qhov tsawg thiab yooj yim rau xau. Qhov no yog qhov teeb meem loj tshaj plaws ntawm cov kav dej cement. Yog tias nws thauj cov dej tsis haus lossis dej haus, nws yuav pov tseg cov dej muaj txiaj ntsig. Yog tias nws thauj cov dej tsis zoo, nws yuav ua rau ib puag ncig thiab ua phem rau tib neeg txoj kev noj qab haus huv. Thib plaub, qhov kev tiv thaiv sab hauv ntawm cov yeeb nkab phab ntsa yog qhov loj thaum lub sij hawm thauj mus los, thiab qhov smoothness ntawm cov cement yeeb nkab tsis zoo, uas cuam tshuam rau kev thauj mus los ceev thiab txaus tus nqi. Tsis tas li ntawd, thaum thauj cov dej tsis haus, cov kab mob tuaj yeem loj hlob ntawm phab ntsa sab hauv, cuam tshuam rau cov dej zoo. Thib tsib, lub neej kev pab cuam luv luv, cov cement yeeb nkab tsis zoo corrosion kuj, thiab nws yog ib qho yooj yim rau kev puas tsuaj nyob rau hauv ib tug ntev-lub sij hawm tsaus ntuj thiab ntub ib puag ncig, uas txo cov kev pab cuam lub neej ntawm peb tes num.
Nrog rau kev siv cov yas faus cov kav dej thoob ntiaj teb, Tuam Tshoj kuj tau pib maj mam txais lawv hauv xyoo tas los no. Yog vim li cas yog tias cov kav dej yas muaj qhov pom tseeb zoo hauv kev ua haujlwm. PVD loj-inch ob-phab ntsa corrugated kav yog tshiab engineering kav tsim thoob ntiaj teb nyob rau hauv lig 1980s thiab thaum ntxov 1990s. Nws hollow nplhaib qauv yog tsim nyog nyob rau hauv mechanics. Yog li ntawd, nws muaj cov yam ntxwv ntawm lub teeb kev ntxhib los mos, siab zog thiab zoo toughness. Nyob rau tib lub sijhawm, nws kuj muaj qhov zoo ntawm qhov yooj yim nteg, tsis kam tiv taus thiab tus nqi qis. Corrosion tsis kam, nws cov kev ua tau zoo thiab kev lag luam kev lag luam deb tshaj qhov kev qhia tshwj xeeb ntawm PVD cov kav dej, cov kav hlau ib txwm siv thiab cov kav dej cement, thiab yog cov khoom hloov ntawm cov kav dej engineering. Nws yog dav siv nyob rau hauv kev ua liaj ua teb irrigation thiab tso dej, nroog cov dej phwj tuaj tawm, low-pressure water delivery and other fields.
Lub hom phiaj tseem ceeb ntawm qhov loj-inch ob-phab ntsa corrugated yeeb nkab expansion tshuab yog siv los ua cov yeeb nkab faus. Raws li kev nqis tes ua ntawm lub ntiajteb txawj nqus, cov kav dej faus tau thauj cov dej tsis haus, dej phwj tuaj, dej nag lossis lwm yam roj, kua, thiab lwm yam rau cov neeg siv, cov chaw kho dej phwj tuaj, thiab cov dej ntws. Feem ntau, nws yog thauj nyob rau hauv lub ntiajteb txawj nqus, tsis muaj siab nyob rau hauv cov yeeb nkab, thiab nws tsuas bears lub load imposed los ntawm cov av. Yog li ntawd, cov kev ua tau zoo ntawm cov kav dej faus yog: 1) lub zog thiab nruj (muaj peev xwm tiv taus cov khoom thauj hauv thaj chaw); 2) hydraulic yam ntxwv (muaj peev xwm thauj cov kua); 3) sealing (tsis muaj to, tiv thaiv kev ua qias tuaj); 4) kev pab lub neej (corrosion kuj, hnav tsis kam); 5) yooj yim rau nteg thiab nruab; 6) kev ua tau zoo ntawm kev lag luam.
Hauv cov ntsiab lus, nws tsis yog qhov nyuaj los kos cov lus xaus hauv qab no: Cov kav dej yas hloov cov kav dej ua vaj tse yog qhov sib txawv ntawm kev tsim cov khoom siv hauv kuv lub tebchaws. Kev nqis peev hauv cov cuab yeej siv rau kev tiv thaiv ib puag ncig thiab cov dej xa dej tau nce zuj zus, thiab cov nroog hauv nroog tau nthuav qhia cov dej phwj tuaj thiab cov dej num tshiab hauv cov phiaj xwm kev loj hlob tsis ntev los no. South-to-North Water Diversion Project thiab kev tiv thaiv ib puag ncig muaj kev xav tau loj rau cov kav dej. Cov kav hlau loj-ntev yog qhov ua tau zoo thiab coj lub sijhawm rau lawv txoj kev loj hlob, thiab tseem yuav ua lub luag haujlwm loj hauv kev txhawb nqa kev tiv thaiv ib puag ncig!
