Lub hau manhole uas ua los ntawm cov khoom sib xyaw yog ib hom hau manhole uas siv los tshuaj xyuas, thiab nws cov yam ntxwv tau piav qhia: lub hau manhole uas siv los tshuaj xyuas yog ua los ntawm ib txoj kev siv polymer ua cov khoom siv matrix, ntxiv cov khoom siv txhawb nqa, cov khoom sau, thiab lwm yam.
Qhov tseeb, cov ntaub thaiv qhov dej (tseem hu ua polymer iav fiber reinforced yas manhole npog / cov khoom siv sib xyaw manhole npog) yog ib hom manhole npog uas siv cov iav fiber thiab nws cov khoom (daim ntaub iav, daim kab xev, xov, xov, thiab lwm yam) ua cov ntaub ntawv txhawb nqa thiab cov khoom siv hluavtaws ua cov khoom siv matrix. Nws muaj cov polyester resin tsis muaj roj, cov khoom sau, cov khoom pib, cov khoom tuab, cov khoom ntxiv qis, cov neeg sawv cev pwm zaj duab xis, cov xim thiab cov ntaub ntawv txhawb nqa, thiab lwm yam, thiab tom qab ntawd yog ib hom khoom tshiab uas tau pwm ntawm qhov kub siab.
Ntawm cov ntaub ntawv ntxiv, cov ntaub fiber reinforced (daim ntaub iav, daim kab xev, ntaub, xov, thiab lwm yam) yog cov tseem ceeb, uas muaj lub zog tshwj xeeb me me, lub zog tshwj xeeb loj thiab modulus tshwj xeeb. Piv txwv li, cov khoom sib xyaw ua ke ntawm carbon fiber thiab epoxy resin, nws lub zog tshwj xeeb thiab modulus tshwj xeeb yog ntau zaus loj dua li cov hlau thiab txhuas alloy, thiab nws kuj muaj kev ruaj khov tshuaj zoo heev, tiv thaiv kev sib txhuam thiab kev hnav tsis kam, kev ua kom lubricating tus kheej, tiv taus kub, tiv taus qaug zog, tiv taus creep, txo suab nrov, rwb thaiv tsev hluav taws xob thiab lwm yam khoom. Cov khoom sib xyaw ua ke ntawm graphite fiber thiab resin tuaj yeem tau txais cov khoom siv nrog tus coefficient nthuav dav yuav luag sib npaug rau xoom. Lwm qhov tshwj xeeb ntawm cov ntaub ntawv fiber reinforced yog anisotropy, yog li kev npaj ntawm cov fibers tuaj yeem tsim raws li qhov xav tau ntawm ntau qhov ntawm cov khoom. Cov khoom sib xyaw ua ke txhuas matrix uas tau txhawb nqa nrog carbon fibers thiab silicon carbide fibers tseem tuaj yeem tswj tau lub zog thiab modulus txaus ntawm 500 ° C.
Cov npog manhole sib xyaw ua ke tuaj yeem muab faib ua BMC thiab SMC raws li kev thov ua lag luam, cov txheej txheem tsim khoom sib txawv thiab cov ntaub ntawv:
Cov ntaub ntawv BMC (DMC) yog cov tshuaj molding loj. Nws feem ntau hu ua unsaturated polyester bulk molding compound hauv Suav teb. Cov khoom siv tseem ceeb yog cov khoom ua los ntawm hmoov nplej uas tau sib xyaw ua ke los ntawm GF (cov iav fiber txiav), UP (cov resin tsis saturated), MD (cov khoom sau) thiab ntau yam khoom ntxiv. Cov ntaub ntawv DMC tau siv thawj zaug hauv lub tebchaws Yelemes Sab Hnub Poob thiab United Kingdom thaum xyoo 1960, thiab tom qab ntawd tau tsim hauv Tebchaws Meskas thiab Nyiv Pooj thaum xyoo 1970 thiab 1980. Vim tias BMC bulk molding compound muaj cov khoom siv hluav taws xob zoo heev, cov khoom siv kho tshuab, tiv taus cua sov, tiv taus tshuaj lom neeg, thiab hloov kho rau ntau yam txheej txheem molding, nws tuaj yeem ua tau raws li qhov xav tau ntawm ntau yam khoom, thiab siv dav hauv kev tsim tsheb, kev thauj mus los ntawm tsheb ciav hlau, cov khoom siv tsim kho, cov khoom siv kho tshuab thiab hluav taws xob thiab lwm yam teb.
Cov khoom sib xyaw ua ke SMC yog cov khoom sib xyaw ua ke. Cov khoom siv tseem ceeb yog tsim los ntawm GF (xov tshwj xeeb), UP (cov roj hmab tsis muaj roj), cov khoom ntxiv uas tsis tshua muaj zog, MD (cov khoom sau) thiab ntau yam khoom pab. Nws tau tshwm sim thawj zaug hauv Tebchaws Europe thaum xyoo 1960, thiab nyob ib puag ncig xyoo 1965, Tebchaws Meskas thiab Nyiv tau tsim cov khoom siv tes ua no. Thaum xyoo 1980, kuv lub tebchaws tau qhia txog cov kab tsim khoom SMC txawv teb chaws thiab cov txheej txheem tsim khoom. Cov ntaub ntawv sib xyaw ua ke SMC thiab lawv cov khoom SMC molded muaj cov khoom siv hluav taws xob zoo heev, cov khoom siv kho tshuab, kev ruaj khov thermal, thiab kev tiv thaiv tshuaj lom neeg. Yog li ntawd, ntau yam kev siv ntawm cov khoom SMC yog qhov ntau heev. Qhov kev txhim kho tam sim no yog hloov cov ntaub ntawv BMC nrog cov khoom sib xyaw ua ke SMC.
Tam sim no daim ntawv thov ntawm peb cov resin manhole npog ua lub luag haujlwm tseem ceeb hauv peb lub neej, thiab cov resin manhole npog sawv tawm vim lawv txoj haujlwm ntxuav tus kheej.
Kev siv cov ntaub thaiv qhov dej ntawm txoj kev muaj cov yam ntxwv ntawm kev rwb thaiv tsev, tsis muaj suab nrov, tsis muaj txiaj ntsig rov ua dua tshiab thiab tiv thaiv kev tub sab nyiag. Nws yog qhov tsis tuaj yeem hloov pauv rau cov ntaub thaiv qhov dej hlau cam khwb cia.
Lub hau qhov dej ua los ntawm cov roj hmab yog ua los ntawm cov txheej txheem molding tshwj xeeb, uas ua rau lub nroog zoo li tshiab kiag li. Lub neej ua haujlwm yog li ntawm 20-50 xyoo. Lub hau qhov dej ua los ntawm cov roj hmab sib xyaw ua ke uas tsim los ntawm kev molding kub siab muaj qhov zoo ntawm qhov hnyav sib dua thiab lub zog siab, tiv taus kev qaug zog zoo heev thiab kev nyab xeeb ntawm kev puas tsuaj. Nws muaj qhov zoo ntawm kev molding yooj yim, suab nrov qis, tiv taus tshuaj lom neeg zoo, tiv taus acid thiab alkali zoo thiab zoo nkauj, thiab cov pa phem hauv cov dej khib nyiab raug txo qis ntxiv.
Tam sim no ntawm kev ua lag luam, cov npog manhole tsim los ntawm ntau lub tuam txhab tsim cov npog manhole sib xyaw yog ua los ntawm cov ntaub ntawv sib txawv, tab sis ntau yam ntxwv zoo sib xws:
1. Kev ua tau zoo tiv thaiv kev tub sab: Cov npog qhov dej sib xyaw feem ntau yog ua los ntawm cov resin tsis muaj roj, iav fiber thiab lwm yam khoom siv los ntawm cov txheej txheem tsim khoom tshwj xeeb, thiab cov khoom tsis muaj txiaj ntsig rov ua dua tshiab. Kev txhawb zog tsis yooj yim ua luaj.
2. Lub neej ua haujlwm: Los ntawm kev siv cov resin ua haujlwm siab, iav fiber thiab cov txheej txheem tsim khoom tshwj xeeb, kev nkag mus ntawm lub hau composite hauv cov iav fiber tau lees paub, thiab qhov sib txuas ntawm ob qho tib si tau txhim kho zoo heev, yog li cov khoom yuav tsis raug puas tsuaj nyob rau hauv qhov kev ua ntawm cyclic load. Kev puas tsuaj sab hauv tshwm sim, yog li ua kom lub neej ua haujlwm ntawm cov khoom thiab tib yam zoo ntawm lwm cov resin composite manhole npog, zoo tshem tawm qhov tsis zoo ntawm kev sib txuas tsis zoo.
3. Kev tiv taus kub/kub tsawg, kev ua haujlwm rwb thaiv tsev zoo thiab kev tiv taus corrosion muaj zog: cov khoom no tiv taus corrosion, tsis muaj tshuaj lom thiab tsis muaj teeb meem. Tsis muaj cov hlau ntxiv. Nws tuaj yeem siv rau hauv qhov chaw nyuaj thiab hloov pauv, hnyav thiab xav tau. Cov npog manhole tsim los ntawm Bester composite manhole cover manufacturers tau raug sim los ntawm cov koom haum xeem hauv tebchaws, thiab muaj kev tiv thaiv acid thiab alkali, tiv taus corrosion, tiv thaiv kev laus thiab ntau lwm yam cim qhia uas ua tau raws li cov qauv zoo ntawm cov khoom.
4. Zoo nkauj thiab siv tau yooj yim, qib siab: raws li qhov xav tau ntawm cov neeg siv khoom siab, peb tuaj yeem ua LOGO nyuaj thiab ntau yam xim ntawm qhov chaw ntawm tib lub hau manhole tus kheej tsim, yog li ntawd tus qauv yog qhov zoo nkauj, xim ci thiab meej. Raws li cov neeg siv khoom xav tau, nws tuaj yeem ua rau ntau yam pob zeb cuav thiab xim uas zoo ib yam li ntau yam kev taug kev pob zeb.
5. Muaj peev xwm dais tau zoo: Hauv qab siv cov qauv tsim tshwj xeeb, thiab cov fiber txuas ntxiv siv yog ua los ntawm cov khoom siv los xyuas kom meej tias cov fiber thiab iav fiber ntaub tau koom ua ke, yog li cov khoom muaj qee qhov peev xwm dais tau.
6. Kev tiv thaiv ib puag ncig, tsis plam, suab nrov qis: lub hau manhole yuav tsis plam tom qab lub tsheb dov, thiab yuav tsis muaj suab nrov pob ntseg thiab ua qias tuaj.
Thaum txhim kho lub hau manhole composite, ua raws li plaub kauj ruam no:
1. Ua ntej kev teeb tsa, lub hauv paus ntawm lub hau manhole yuav tsum huv si thiab ruaj khov, thiab lub cheeb sab hauv, ntev thiab dav yuav tsum txiav txim siab raws li qhov loj ntawm lub hau manhole.
2. Thaum txhim kho lub hau manhole sib xyaw rau ntawm txoj kev cement, xyuam xim rau lub qhov dej yuav tsum tau nchuav nrog cov pob zeb ua vaj tse, thiab lub nplhaib tiv thaiv pob zeb yuav tsum tau tsim tsa rau ntawm qhov chaw rau kev saib xyuas li 10 hnub.
3. Thaum txhim kho cov npog qhov dej sib xyaw ua ke ntawm txoj kev asphalt, yuav tsum tau ceev faj kom tsis txhob muaj cov tshuab siv los dov lub hau qhov dej thiab lub rooj zaum ntawm lub qhov dej kom tsis txhob puas tsuaj.
4. Yuav kom tswj tau qhov zoo nkauj ntawm lub hau manhole thiab cov ntawv sau thiab cov qauv meej, ceev faj kom tsis txhob ua rau lub hau manhole puas thaum nchuav asphalt thiab cement rau ntawm txoj kev.
txoj kev loj hlob:
(1) Nws lub zog yog qhov thib ob tsuas yog tom qab cov pob zeb yas manhole npog. Nws tuaj yeem nqa ntau dua 40 tons ntawm lub tsheb.
(2) Nws cov kev ua tau zoo yog nyob nruab nrab ntawm lub pob zeb-yas manhole npog thiab lub pob zeb manhole npog, uas zoo dua li ntawm cov pob zeb ua vaj tse; nws tuaj yeem siv rau hauv cov sijhawm nrog cov kev xav tau siab rau cov manhole npog.
(3) Nws qhov zoo tshaj plaws yog tias nws tsis siv cov hlau pob txha txhawb nqa, tab sis nws tau txhawb nqa nrog cov iav fiber composite, uas yog cov khoom GRC hom. Yog li ntawd, nws muaj qhov zoo ntawm kev tsis cuam tshuam thaum tus nqi ntawm cov hlau txuas ntxiv nce. Vim tias nws tsis muaj me ntsis hlau, nws tiv thaiv kev tub sab ntau dua li cov yas pob zeb thiab cov fiber ntau manhole npog.
(4) Nws qhov ceev kho yog ntau zaus sai dua li ntawm cov fiber ntau, thiab nws tuaj yeem raug rhuav tshem hauv 8 teev. Yog tias nws raug tsim tawm hauv peb qhov kev hloov pauv, nws tuaj yeem raug rhuav tshem peb zaug hauv 24 teev. Txawm hais tias qhov ntau ntawm cov pwm ntau dua li ntawm cov yas pob zeb, nws tsuas yog 1/6 ntawm cov fiber ntau cov ntaub thaiv qhov quav. Nws kuj tseem tuaj yeem txo qhov kev nqis peev pwm. Nrog rau cov khoom tsim tawm txhua xyoo ntawm 10,000 pawg ntawm cov ntaub thaiv qhov quav, tsuas yog xav tau 10 pawg ntawm cov pwm.
(5) Lub hau manhole sib xyaw ua ke zoo tagnrho, siab dua, thiab tsis muaj qhov sib piv nrog lwm cov pwm (xws li cov pwm roj hmab, cov pwm yas, cov pwm yas fiber ntau).
(6) Hauv kev txhim kho thiab hloov kho tas mus li ntawm cov ntaub thaiv qhov dej sib xyaw, ntau yam ntsuas tau dhau tus qauv kev lag luam ntawm Ministry of Construction, thiab feem ntau tau mus txog tus qauv zoo ntawm kuv lub teb chaws kev lag luam npog qhov dej.
Ms. Serafina +86 15102806197
Lub sijhawm tshaj tawm: Plaub Hlis-23-2022
