Kev npaj cov dej ntawm lub tsev nyob lossis qhov chaw tsim kho yog ib txoj haujlwm tseem ceeb. Txhawm rau ua dej, nws yog qhov yuav tsum tau xaiv cov kav dej zoo. Rau cov hom phiaj no, cov kav dej polyethylene feem ntau siv. Cov khoom raug muab faib ua ob peb hom, txhua tus muaj nws qhov zoo thiab qhov tsis zoo.
Polyethylene feem ntau yog siv ntau dua hauv zaj duab xis lossis ntim khoom. Tab sis cov kav dej ua los ntawm cov khoom siv no tau tshwm sim tsis ntev los no. Qhov no kuj siv tau rau kev lag luam khoom siv hauv tsev hauv Lavxias.
siv qhov twg
Muaj ntau daim ntawv thov rau cov kav dej polyethylene. Lawv siv rau cov kav dej hauv cov chaw nyob. Haum rau dej txias, nrog rau haus. Lawv kuj tau siv rau cov dej phwj los yog cov dej tsis muaj zog.
Cov kav dej ua los ntawm polyethylene kuj tau siv dav hauv kev ua liaj ua teb: cov kav dej, cov kav dej rau cov qoob loo, melioration.
Txoj kev lag luam ntawm kev siv cov kav dej zoo li no kuj tsis txwv raukav dej. Cov kav dej HDPE yog siv rau hauv kev tsim kho cov kav dej nruab nrab thiab tsis tshua muaj siab, rau kev tshem tawm thiab kev thauj mus los ntawm cov khoom siv tshuaj lom neeg, thiab hauv cov chaw ua haujlwm rau kev thauj mus los ntawm cov txheej txheem dej.
Sizes
Cov kav dej tau muab faib ua peb hom los ntawm qhov loj:
- cov kav dej yas nrog txoj kab uas hla ntawm 1 cm mus rau 120 cm raws ntug sab nrauv.
- Sab nraud txoj kab uas hla ntawm 0.3mm txog 6mm.
- Dimensions raws li GOST 18599-2001.
Txog tsis ntev los no, cov kav hlau tau nrov dua, tab sis HDPE yeeb nkab cov chaw tsim khoom tau paub txog cov thev naus laus zis los tsim cov kav dej loj. Qhov no qhia tau tias yav tom ntej cov khoom siv no yuav tuaj yeem hloov pauv cov kav dej steel hauv kev tsim khoom.
Qhov loj thiab txoj kab uas hla ntawm cov kav dej, raws li txoj cai, yog qhia los ntawm cov chaw tsim khoom ntawm txhua qhov 'meter' ntawm cov khoom. Qhov no yog qhov tsim nyog kom tus neeg yuav khoom pom cov ntaub ntawv tsim nyog txawm tias tom qab txiav qhov ntev ntawm cov yeeb nkab.
Views
Cov kav dej tau muab faib raws li kev siv. Hauv qab no yog cov npe ntawm txhua yam ntawm cov kav dej polyethylene:
- Cov kav dej rau sab nraum zoov dej: siv los kho thiab tsim kho cov dej hauv tsev, kuj tsim nyog rau kev tso dej thiab lwm yam khoom siv roj thiab tshuaj lom neeg uas cov khoom siv tiv taus.
- Cov kav dej tsis muaj zog rau cov kav dej thiab cov kav dej: siv rau cov kav dej phwj. Hom polyethylene no ntau duaKub resistant thiab muaj peev xwm tiv taus kub tshaj 40 degrees.
- Spirally twisted kav rau cov dej thiab cov kav dej: ua los ntawm cov yeeb nkab polyethylene qib PE100, PE800 thiab PE63. Lawv tau siv rau hauv kev tsim cov tes hauj lwm uas yuav tsum muaj txoj kab loj ntawm cov kav dej.
Cov no yog hom tseem ceeb ntawm cov kav dej polyethylene, uas yog cov neeg siv khoom ntau tshaj plaws.
GOST sib raug rau
GOST polyethylene kav dej muaj tus lej 18599-2001. Cov ntaub ntawv tsim cov kev cai hauv qab no rau cov khoom siv: cov phab ntsa ntawm txhua qhov tsim cov kav dej, ob sab hauv thiab sab nraud, yuav tsum tsis txhob muaj cov khoom txawv teb chaws, cov kab nrib pleb, chips, cua npuas. Cov kev sib txawv me me nyob rau hauv daim ntawv ntawm cov kab txaij ntev lossis cov nthwv dej kuj raug tso cai, tab sis lawv yuav tsum tsis txhob cuam tshuam rau lub thickness, thiab qhov ntev yuav tsum nyob rau hauv qhov ib txwm muaj.
Cov khoom xim tuaj yeem yog dub lossis grey. Cov kav dej yog qhia los ntawm peb txoj kab xiav xiav ntawm keeb kwm dub. Yog tias cov kab txaij daj, ces cov kav dej yog siv rau cov kav dej xa hluav taws xob. Qee zaum, cov kav dej yuav liab.
Kev tsim cov kav dej polyethylene txhais tau tias yuav tsum tau kos npe. Feem ntau, qhov no yog cov ntaub ntawv uas muaj tag nrho cov ntaub ntawv hais txog cov khoom. Qhov no yuav tsum yog raws li hauv qab no:
- tsab ntawv ua ke PE txhais tau tias cov kav dej yog tsim los ntawm polyethylene.
- Tam sim tom qab cov tsiaj ntawv loj muaj tus lej ntawdqhia qhov tsawg kawg nkaus lub zog Performance index (PE100, PE80, thiab lwm yam).
- Cov npe hauv qab no (SDR) qhia txog qhov txheeb ze ntawm lub siab uas cov yeeb nkab tuaj yeem tiv taus, lub nra.
- Sab ntug txoj kab uas hla thiab phab ntsa thickness.
- Nws yog spelled tawm lub hom phiaj ntawm cov yeeb nkab muaj: technical los yog haus.
- GOST uas cov khoom muaj npe.
- Producer information: teb chaws, tuam txhab npe.
Specifications
Cov yam ntxwv ntawm cov kav dej polyethylene yog tsim nyog los ntawm cov khoom ntawm cov khoom. Polyethylene tiv taus corrosion, tab sis tsis tuaj yeem tiv taus qhov kub thiab txias. Cov lus qhia tshwj xeeb yog qhov tseem ceeb tshaj plaws rau kev xaiv cov kav dej PE.
Qhov kub ua haujlwm ntawm txhua yam ntawm cov kav dej polyethylene tsis tuaj yeem tshaj 40 degrees Celsius. Qhov ntsuas kub qis dua yog 0. Tau kawg, cov khoom siv yuav tsis poob nws qhov kev ua tau zoo, tab sis cov dej yuav khov. Cov lus nug ntawm yuav ua li cas thaw ib lub raj dej polyethylene yog tias nws khov muaj cov tshuaj zoo ib yam li lwm cov kav dej. Qhov tseem ceeb tshaj plaws yog cov dej uas khov rau hauv melts thiab pib txav.
Cov chaw tsim khoom qhia qhov siab tshaj plaws ntawm cov yeeb nkab, vim qhov ntsuas no nyob ntawm cov hauv qab no: qib ntawm polyethylene thiab nws qhov ntom ntom; Phab ntsa thickness; yeeb nkab txoj kab uas hla (qhov loj ntawm cov yeeb nkab txoj kab uas hla, qhov loj qhov chaw ua hauj lwm, uas yog, lub siab ntawm phab ntsa yuav ntau dua).
Txoj kab uas hla ntawm cov yeeb nkab yog nyob ntawm daim ntawv thov. Rau cov tsev nyob, txoj kab uas hla ntawm cov kav dej yog suav tias yog qhov zoo tagnrho,sib npaug li 20 mm. Cov kav dej loj loj yog siv rau cov kav dej ntawm thaj chaw loj thiab hauv kev tsim kho kev loj. Kuj feem ntau siv rau phab ntsa ntawm qhov dej. Cov kev cai thiab cov kev cai teem lub cheeb ntawm cov kav dej ntawm 10 hli mus rau 1200 hli, thiab lub thickness - los ntawm 2 hli mus rau 6 cm.
Qhov hnyav ntawm cov yeeb nkab yog txiav txim siab los ntawm nws qhov loj. Qhov loj ntawm txoj kab uas hla, qhov hnyav dua. Kev txhim kho cov kav dej loj polyethylene yog ua los ntawm cov khoom siv tshwj xeeb.
Raws li cov npoo ntawm kev nyab xeeb, yog tias cov chaw tsim khoom qhia qhov siab tshaj plaws, ces qhov tseeb cov kav dej tuaj yeem tiv taus ntau dua. Qhov no yog qhov tsim nyog rau kev ua haujlwm nyab xeeb. Dab tsi yog qhov npoo ntawm kev nyab xeeb yuav tsum tau qhia rau ntawm cov yeeb nkab ntawm txhua lub 'meter'.
Lub neej kev pabcuam nruab nrab ntawm cov kav dej polyethylene pib los ntawm 50+, lub neej siab tshaj plaws tsis suav. Tab sis nyob rau hauv cov nqe lus ntawm nws cov khoom, cov ntaub ntawv cog lus tias yuav ruaj rau lub sij hawm ntev dua.
Nyob zoo ib tsoom niam txiv kwv tij neej tsas sawv daws.
Piv rau lwm hom kav dej (steel, hlau), polyethylene kav muaj ntau yam zoo:
- Nyiaj. Vim tias cov khoom siv pheej yig pheej yig siv rau kev tsim khoom, tus nqi rau cov kav dej no tsis siab heev.
- Long service life. Polyethylene tiv taus xeb, xeb thiab ib puag ncig cuam tshuam.
- Yooj yim ntawm kev teeb tsa vim qhov hnyav ntawm cov khoom siv.
- Vuam yog pheej yig dua li koom nrog cov kav hlau.
- Qhov nruj tseem tsis hloov pauv (txawm tias dej hauv khov). Muaj siabFrost tsis kam.
- Yog siv polyethylene los ua cov kav dej siab, qhov no yuav dhau los ua kev tiv thaiv ntxiv rau cov kab mob thiab kab mob.
Flaws
Zoo li txhua yam khoom siv, cov kav dej polyethylene muaj qhov zoo thiab qhov tsis zoo. Tab sis ntawm no tus naj npawb ntawm qhov zoo ntau zaus tshaj qhov tsis zoo. Koj yuav tsum paub txog qhov tsis zoo ntawm cov khoom no ua ntej yuav:
- Cov yam ntxwv thev naus laus zis tsawg, uas tsis zoo rau cov kav hlau lossis cov kav hlau cam.
- Kev teeb tsa ua haujlwm tau tso siab rau tus kws tshaj lij nrog kev paub dhau los. Yog tias koj xav ua haujlwm ntawm koj tus kheej, ces koj yuav tsum xaiv cov kav dej polyethylene nrog kev sib txuas kom haum.
- Tsis ruaj khov rau lub hnub ci, uas tuaj yeem cuam tshuam kev ua haujlwm. Cov hluav taws xob ultraviolet tuaj yeem rhuav tshem kev ncaj ncees ntawm polyethylene.
Qhov muaj qhov tsis zoo qhia tias cov khoom siv tsis zoo. Tab sis cov txiaj ntsig tseem ceeb dua. Yuav xaiv dab tsi? Koj txiav txim siab.
Ua-nws-koj tus kheej polyethylene yeeb nkab txuas
Kev txhim kho cov kav dej yog ib qho yooj yim. Yog tias koj muaj kev paub txog kev txuas lwm cov kav dej, ces koj tuaj yeem ua nws ntawm no. Cov hau kev tseem ceeb (yuav ua li cas txuas cov kav dej polyethylene): vuam thiab fastening ntawm fittings.
Yuav kom vuam kav, koj yuav tsum siv lub tshuab tshwj xeeb. Qhov no kim heev, nws yog qhov zoo dua los caw ib tus neeg ua qhov no ntawm qib kws tshaj lij los ua haujlwm.
Tab sis feem ntau cov khoom uas muaj txoj kab uas hla tsawg dua 16 cm,nruab nrog ib tug haum system. Qhov no ua kom yooj yim rau kev teeb tsa cov kav dej polyethylene.
Thaum txhim kho cov kav dej polyethylene, nws tsim nyog xav txog qee yam nta. Piv txwv li, nteg yog qhov zoo tshaj plaws ua nyob rau hauv lub pob zeb txheej los yog cement screed. Qhov no yog qhov tsim nyog los tiv thaiv cov kav dej. Cov khoom yuav tsis overheat nyob rau hauv lub hnub los yog khov nyob rau hauv txias.
Txhawm rau txiav cov kav dej kom du thiab tsis muaj cov chips, koj yuav tsum siv lub tshuab txiav tshwj xeeb. Yog tias koj yuav tsum tau khoov, lub yeeb nkab bender yuav los ua ke.
Thaum ua cov kav dej, nws tsim nyog saib xyuas cov rwb thaiv tsev ua ntej. Qhov no yuav tiv thaiv pwm ntxiv thiab dampness hauv chav.
Cov Lus Qhia Tus Kheej
Cov kav dej (txawm nws yog rau tsev lossis tom haujlwm) yuav tsum tau ua tib zoo saib xyuas thiab lav ris. Nws yog ib qho tseem ceeb heev uas cov dej huv, tsis muaj impurities thiab tsw. Cov kav dej polyethylene yuav tiv nrog txoj haujlwm no zoo kawg nkaus.
Cov khoom ntawm cov khoom tso cai siv cov kav dej hauv txhua qhov huab cua thiab thaj chaw huab cua. Lawv tsis raug rau rotting thiab corrosion, resistant rau pwm, dampness thiab fungi. Kev pab lub neej tshaj 50 xyoo.
Zoo kawg
Qhov zoo ntawm cov dej muab khoom loj yog nyob ntawm cov kav dej uas nws txav mus. Hlau thiab hlau ploj mus rau hauv keeb kwm yav dhau. Lawv tau hloov los ntawm cov kav dej ua los ntawm polyethylene. Hauv lawv cov khoom, lawv tsis phem dua li lawv cov thawj coj, thiab qee txoj hauv kev txawm tias dhau lawv.
Tshwj xeeb rau lub sijhawm ntevlawv hais tias yav tom ntej PE kav yuav hloov cov kav hlau thiab cam khwb cia hlau. Thawj kauj ruam ntawm qhov no twb tau ua lawm.
Yog tias koj xav tsim kom muaj lub zog ruaj khov thiab pheej yig, ces koj yuav tsum xyuam xim rau cov kav dej polyethylene. Koj yuav tau txais cov khoom zoo ntawm tus nqi txaus nyiam uas yuav kav ntev heev.
Ntawm cov khoom siv hauv tsev ua lag luam hauv cov khw muag khoom niaj hnub no muaj kev xaiv loj ntawm cov khoom lag luam uas txawv ntawm txoj kab uas hla, tab sis kuj yog cov chaw tsim khoom. Ua ntej yuav khoom, xyuas kom meej tias cov khoom ua tau raws li qhov yuav tsum tau ua ntawm GOST thiab lwm cov ntaub ntawv tswj hwm. Kuj xaiv cov khoom los ntawm cov chaw tsim khoom ntseeg siab uas muaj lub koob npe zoo thiab kev tshuaj xyuas zoo.
