Hauv lub ntiaj teb kev tsim kho thiab kev tsim kho uas hloov zuj zus tas li, kev nrhiav cov ntaub ntawv uas muaj zog thiab ruaj khov yog qhov tseem ceeb. Ntawm cov kev tsim kho tshiab uas tau tshwm sim hauv xyoo tas los no, cov kav dej polyurethane-lined tau txais kev saib xyuas ntau rau lawv lub peev xwm los txhim kho qhov ruaj khov ntawm cov kav dej hollow section structural. Tsab xov xwm no tshawb nrhiav seb kev sib koom ua ke ntawm polyurethane linings tuaj yeem hloov pauv cov khoom siv no li cas, ua rau lawv muaj zog dua thiab ua haujlwm tau zoo dua hauv ntau yam kev siv.
Cov kav dej hollow section structural pipes siv dav hauv kev tsim kho, kev tsim kho vaj tse thiab kev lag luam vim lawv cov duab tubular thiab cov phab ntsa tuab sib npaug. Lawv tau tsim los rau kev faib khoom zoo thiab zoo tagnrho rau kev txhawb nqa cov qauv xws li choj, tsev thiab scaffolding. Txawm li cas los xij, ib qho ntawm cov teeb meem uas cov kav dej no ntsib yog lawv qhov kev cuam tshuam rau kev xeb, kev hnav thiab kev puas tsuaj, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig hnyav. Qhov no yog qhov uas polyurethane linings tuaj rau hauv.a
Polyurethane yog ib hom polymer uas siv tau ntau yam, paub txog nws cov khoom siv zoo heev, suav nrog lub zog tensile siab, kev ywj pheej, thiab kev tiv taus cov tshuaj lom neeg thiab cov yam ntxwv ib puag ncig. Thaum polyurethane siv los ua ib txheej rau cov kav dej hollow, nws tsim ib daim thaiv kev tiv thaiv uas ua rau cov kav dej ruaj khov dua. Cov txheej no tsis yog tsuas yog tiv thaiv kev xeb los ntawm cov dej noo thiab cov tshuaj lom neeg xwb, tab sis kuj txo qhov hnav los ntawm cov khoom siv abrasives, ua rau lub kav dej siv tau ntev dua.
Ib qho ntawm cov txiaj ntsig tseem ceeb tshaj plaws ntawmpolyurethane kab yeeb nkabyog nws lub peev xwm los tiv taus cov xwm txheej hnyav. Hauv cov lag luam xws li kev khawb av, roj thiab roj av, thiab kev tswj cov dej khib nyiab, cov kav dej feem ntau raug rau cov tshuaj corrosive thiab cov khoom siv abrasive. Lub polyurethane lining ua haujlwm ua ib qho thaiv, tiv thaiv cov hlau hauv qab los ntawm kev puas tsuaj thiab xyuas kom meej tias qhov kev ua haujlwm ntawm cov kav dej tseem zoo. Qhov kev ruaj khov no txhais tau tias cov nqi kho qis dua thiab lub sijhawm tsis ua haujlwm tsawg dua, ua rau cov kav dej polyurethane lined yog qhov kev daws teeb meem pheej yig rau cov lag luam.
Tsis tas li ntawd xwb, cov khoom siv polyurethane uas tsis hnyav ua rau cov yeeb nkab hollow structural pipes yooj yim dua rau kev tuav thiab teeb tsa. Cov ntaub ntawv ib txwm muaj peev xwm loj thiab nyuaj rau ua haujlwm nrog, ua rau cov nqi zog ua haujlwm nce ntxiv thiab cov sijhawm ua haujlwm ntev dua. Qhov sib txawv, cov yeeb nkab polyurethane-lined yooj yim dua rau kev thauj mus los thiab teeb tsa, ua kom cov txheej txheem kev tsim kho yooj yim dua thiab txhim kho kev ua haujlwm zoo tag nrho.
Lwm yam zoo ntawm cov kav dej polyurethane uas muaj kab yog lawv qhov ua tau ntau yam. Lawv tuaj yeem hloov kho raws li qhov xav tau tshwj xeeb, suav nrog ntau qhov tuab ntawm cov ntaub, ntau qib ntawm polyurethane, thiab qhov loj ntawm cov kav dej hollow. Qhov kev hloov pauv no ua rau lawv haum rau ntau yam kev siv, txij li kev tsim kho vaj tse mus rau cov haujlwm loj hauv kev lag luam.
Ntxiv rau qhov zoo ntawm kev siv tau, cov kav dej polyurethane kuj pab txhawb rau kev txhim kho kom ruaj khov. Los ntawm kev ua kom lub neej ntev ntawm cov kav dej thiab txo qhov xav tau hloov pauv ntau zaus, cov kev tsim kho tshiab no pab txo cov khib nyiab thiab kev siv cov peev txheej. Tsis tas li ntawd, cov txheej txheem tsim khoom siv hluav taws xob zoo uas cuam tshuam nrog polyurethanes pab txo cov pa roj carbon, uas yog sib xws nrog kev tsom mus rau kev coj ua hauv kev tsim kho kom ruaj khov.
Hauv kev xaus lus, kev koom ua ke ntawm polyurethane linings rau hauv cov kav dej hollow structural pipes sawv cev rau kev nce qib tseem ceeb hauv cov khoom siv thev naus laus zis. Los ntawm kev ua kom muaj zog tshaj plaws thiab muab kev tiv thaiv tiv thaiv kev xeb thiab kev puas tsuaj, cov kav dej polyurethane lined tab tom hloov pauv qhov chaw ntawm kev tsim kho thiab engineering. Raws li kev lag luam txuas ntxiv nrhiav cov kev daws teeb meem uas txhim kho kev ua tau zoo thaum txo cov nqi, kev siv cov kav dej polyurethane lined yuav loj hlob, paving txoj hauv kev rau cov khoom siv kho vajtse zoo dua thiab ua haujlwm tau zoo.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-06-2024