daim ntawv thov

Pvc-o, Suav lub npe biaxial oriented polyvinyl chloride, yog ib daim ntawv tshiab ntawm evolution ntawm PVC yeeb nkab, los ntawm kev tshwj xeeb orientation ua technology los tsim cov yeeb nkab, PVC-U yeeb nkab uas tsim los ntawm extrusion txoj kev yog stretched axially thiab circumferentially, thiaj li hais tias tus PVC ntev saw molecules nyob rau hauv cov yeeb nkab nyob rau hauv lub biaxial kev npaj.Cov yeeb nkab PVC tshiab nrog lub zog siab, siab tawv, muaj kev cuam tshuam siab thiab qaug zog ua haujlwm tau txais.

Suav lub npe: biaxial orientation polyvinyl chloride

Lub npe txawv teb chaws: PVC-O

Daim Ntawv Thov: Kev Siv Dej thiab Dej Engineering

Thawj lub tuam txhab: Uponor UK

Xyoo: 1970

Keeb Kwm ntawm Kev Txhim Kho

PVC-O yog thawj zaug tsim los ntawm Yorkshirelmperial Plastics (Uponor) hauv UK xyoo 1970 thiab tau tsim los ntawm Molecor, Wawin thiab lwm yam.Nyob rau theem pib, cov txheej txheem "off-line" ua tiav (ob kauj ruam ua txoj kev) tau txais, uas lub extrusion tsim thiab txias PVC-U yeeb nkab ntu (thick embryo) tau nthuav dav mus rau qhov loj me hauv pwm los ntawm cua sov. thiab pressurizing kom paub lub orientation.Kev sim tshawb fawb thiab kev siv tau ua pov thawj tias PVC-O muaj kev ua tau zoo tshaj plaws, tab sis cov txheej txheem "off-line" muaj qhov ceev ceev thiab cov cuab yeej siv siab, thiab nws nyuaj rau kev nrov.Tom qab tsim nyob rau hauv cov txheej txheem extrusion "hauv-kab" kev taw qhia, txuas ntxiv ntawm PVC-O.Cov txheej txheem ntau lawm yog ib txoj kev ua ib kauj ruam, uas yog, nyob rau hauv cov yeeb nkab extrusion kab, PVC-U yeeb nkab (cov ntaub ntawv tuab embryo) tau extruded mus cuag biaxial orientation los ntawm lub nplhaib expansion thiab axial stretching, thiab ces txias thiab shaping. rau hauv cov yeeb nkab PVC-O.Cov txheej txheem "in-line" biaxial orientation ntau lawm zoo txhim kho kev tsim khoom, txo cov nqi tsim khoom thiab txhim kho kev sib tw ntawm PVC-O thiab lwm cov kav dej.Xyoo 2014, Baoplastic Pipe, lub tuam txhab lag luam hauv tsev, tau ua tus thawj coj hauv kev tsim cov tshuab ziab khaub ncaws hauv ib-kauj ruam, uas rhuav tshem cov thev naus laus zis ntawm kev lag luam txawv teb chaws.

PVC-O tubing tau siv nyob rau hauv UK, Fabkis, Holland, Portugal, Tebchaws USA, Australia, South Africa thiab Nyiv tau ntau xyoo.Tebchaws Asmeskas, Australia thiab lwm lub tebchaws tau tshaj tawm cov khoom lag luam ntawm PVC-O, thiab Lub Koom Haum International Standards Organization kuj tau luam tawm cov qauv PVC-O -ISO 16422-2014.Tuam Tshoj lub teb chaws tus qauv "Oriented Polyvinyl chloride (PVC-O) Yeeb Nkab thiab Fittings rau Kev Thauj Dej Siab" GB / T41422-2022 kuj tau tshaj tawm rau lub Plaub Hlis 15, 2022, thiab tau ua tiav rau lub Kaum Ib Hlis 1, 2022.

Vim hais tias PVC-O yeeb nkab yog axial thiab circumferential stretching ntawm tus thawj tsim PVC-U yeeb nkab, phab ntsa thickness ntawm cov yeeb nkab yog nyias.Piv nrog PVC-U cov kav dej, cov phab ntsa tuab ntawm PVC-O cov kav dej yuav raug txo los ntawm 35% -40%, uas txuag cov khoom siv thiab txo tus nqi.Nyob rau tib lub sijhawm, vim qhov kev taw qhia ntawm cov saw ntev ntev ntawm cov khoom tsim PVC-U yeeb nkab, txoj kab uas hla ntawm cov yeeb nkab nce hauv kev ua, uas ua rau cov molecular orientation nyob rau hauv lub nplhaib kev taw qhia thiab coj ntau yam kev txhim kho nyob rau hauv lub zog thiab toughness. ntawm ob lub cev muaj zog.Kev taw qhia ntawm cov molecules zoo heev ua rau luv luv - thiab ntev lub zog ntawm cov khoom.Vim yog lub zog zoo thiab tawv, 50-xyoo kev nyab xeeb ntawm cov khoom siv PVC-O ntawm MRS45 thiab MRS50 tuaj yeem qhia tau tias yog 1.6 lossis 1.4, yog li tsim kev ntxhov siab ntawm PVC-O yeeb nkab tuaj yeem ncav cuag 28MPa thiab 32MPa.Cov qauv lamellar tsim los ntawm molecular orientation processing yog tus yuam sij rau siab toughness ntawm PVC-O.Yog hais tias cov kab nrib pleb tshwm sim vim qhov tsis xws luag thiab cov ntsiab lus thauj khoom, cov txheej txheem txheej yuav tiv thaiv qhov tawg los ntawm cov khoom siv, thiab kev nthuav tawm tawg tau zoo inhibited los ntawm kev txo qis kev ntxhov siab vim tias cov kab nrib pleb dhau los ntawm cov khaubncaws sab nraud povtseg.Lwm hom tshiab ntawm cov yeeb nkab - toughened hloov PVC-M yeeb nkab, txawm hais tias nws cov kev cuam tshuam lub zog yog txhim kho, tab sis lub tensile lub zog tsis zoo tuaj.

02

Daim ntawv thov teb

Hauv cov teb chaws txawv teb chaws, PVC-O feem ntau yog siv hauv cov kav dej xa dej, mine pipeline, trenchless nteg thiab kho cov kav dej, roj yeeb nkab network thiab lwm yam.Qee lub tebchaws hauv cov kav dej haus hauv kev siv PVC-O yog maj mam nthuav dav, dhau los ua qhov hloov pauv rau PVC-U, raws li Wavin Group daim ntawv ntsuam xyuas, lub Netherlands, Fabkis, Spain, North America, South America, Australia thiab lwm lub teb chaws muaj ntau ntawm PVC-O pipeline siv.Cov kav dej haus hauv Netherlands muaj 100% siv cov yeeb nkab PVC-O, Fabkis thiab lwm lub teb chaws nyob ze ob xyoos yuav raug saws tag nrho.Nws tau siv dav hauv kev siv dej hauv nroog, dej haus hauv nroog, kev txuag dej thiab dej phwj tuaj thiab lwm qhov chaw.Lub mine ib puag ncig yog qhov hnyav tshwj xeeb thiab cov kev xav tau kev nyab xeeb tshwj xeeb yog nruj.Nyob rau hauv corrosive underground ib puag ncig, PVC-O pipeline nrog lub zog siab, siab toughness, cuam tshuam tsis kam thiab tsis-corrosion muaj kev sib tw zoo dua.

03

Cov txiaj ntsig nyiaj txiag ntawm kev nqis peev hauv PVC-O kev lag luam

Wavin Group hauv Netherlands tau tsim thiab siv PVC-O yeeb nkab rau ntau xyoo.Raws li Wavin Group txheeb cais, piv nrog PVC-U, PVC-O yeeb nkab peev thiab kev siv nyiaj yog raws li nram no:

(1) Qhov nruab nrab txuag ntawm raw khoom yog 11.58%.

(2) 2.5-3 npaug ntau dua PVC-O peev (hauv Tebchaws Europe).

(3) Cov qoob loo yog 300-650 kg / h, thiab qhov ntev yog nce los ntawm 20% -40%.

(4) Qhov kev tsis lees paub nce los ntawm 2% -4%.

(5) Ua kom lub zog siv tau los ntawm 25%.

(6) 10% -15% nce hauv cov nqi ua haujlwm ntawm cov neeg ua haujlwm.

(7) Qhov ntev ntawm cov kab ntau lawm yuav tsum tau nce 25%.

Los ntawm kev suav ua ke, kev nqis peev ntawm 1 m yeeb nkab tuaj yeem raug txo los ntawm 33% -44%, thiab tus nqi tuaj yeem nce 10% -15%.Pom tau, PVC-O yeeb nkab yog kev nqis peev ib zaug, cov nyiaj tau los ntawm lub neej.

Tam sim no, cov tuam txhab lag luam hauv Bao yas yeeb nkab tseem muab kev hloov pauv tshuab thiab cov kev pabcuam rau tib yam kev lag luam, uas tau mus txog suav nrog Sichuan Yibin Tianyuan, Brazil Cole thiab lwm cov lag luam yas loj.

04

Kev vam meej ntawm Kev Txhim Kho

Kev hloov pauv thiab kev loj hlob ntawm cov xwm txheej thoob ntiaj teb muab lub sijhawm tsis tau muaj keeb kwm yav dhau los rau kev tsim cov yeeb nkab PVC hauv peb lub tebchaws.Polyhydrocarbon piping systems, uas sib tw nrog PVC piping systems nyob rau hauv ntau daim ntawv thov vim skyrocketing nqi ntawm cov roj, tau muaj kev cuam tshuam loj heev, thaum thee-based PVC tau nce nws cov kev sib tw los ntawm kev tuav tus nqi qis.

PVC piping system muaj ze li ntawm 70 xyoo ntawm txoj kev loj hlob keeb kwm, vim hais tias ntawm nws cov modulus siab, siab zog thiab tsis tshua muaj nqi zoo, yog li nws yog lub ntiaj teb no tus loj tshaj plaws siv ntawm yas piping system, tau dav siv nyob rau hauv ntau yam teb nyob rau hauv niaj hnub haiv neeg.Nrog rau txoj kev loj hlob sai ntawm Tuam Tshoj cov raj xa dej yas kev lag luam, nws tau dhau los ua ib lub teb chaws loj ntawm cov raj xa dej yas thiab daim ntawv thov hauv ntiaj teb.Lub peev xwm ntawm PVC PIPE nyob rau hauv peb lub teb chaws yog ntau tshaj 2 lab t / a, tsuas yog accounting txog li 50% ntawm tag nrho cov nyiaj ntawm cov yeeb nkab yas, thaum nyob rau hauv lub teb chaws tsim, kev siv ntawm PVC yeeb nkab feem ntau suav rau 70% -80%. ntawm cov yeeb nkab yas ua lag luam.

Nyob rau hauv lub xyoo pua 21st, PVC yeeb nkab ntsib ntau tus neeg sib tw, tshwj xeeb tshaj yog vim kev txhim kho pom tseeb ntawm cov khoom siv xws li HDPE (xws li PE63 rau PE80 thiab PE100), PE yeeb nkab muaj qhov zoo heev toughness thiab dej rauj cuam tshuam tsis kam.Tsis tas li ntawd, kev thuam ntawm chlorine los ntawm cov koom haum tiv thaiv ib puag ncig hauv ntau lub tebchaws ua rau cov kav dej PVC ntsib qhov xwm txheej hnyav.Txawm li cas los xij, nws tau raug tsis quav ntsej rau lub sijhawm ntev uas cov kav dej PVC tuaj yeem tiv thaiv kev nkag mus ntawm qee yam tshuaj lom thiab muaj teeb meem zoo dua li cov kav dej PE.Nyob rau hauv lub neej yav tom ntej ntawm lub ntiaj teb yeeb nkab kev lag luam nyob rau hauv txoj hauj lwm tseem ceeb los yog PVC yeeb nkab, lub hauv paus yog vim li cas nyob rau hauv kev siv technology tshiab, kev vam meej technology.Kev siv thev naus laus zis tshiab ntawm PVC cob thiab PVC yeeb nkab, tshwj xeeb tshaj yog kev tsim kho tshiab ntawm PVC yeeb nkab ua tshuab thiab txheej txheem, tau txhim kho kev lag luam ntawm PVC yeeb nkab thiab qhib cov ntawv thov tshiab.