Rigid PVC yeeb nkab, yeeb nkab fittings nyob rau hauv ntau cov khoom PVC, nyob rau hauv peb txoj kev loj hlob sai, kuj yog qhov loj tshaj noj ntawm ntau yam yas kav.Los ntawm kev tshaj tawm thiab kev txhawb nqa ntawm PVC tubing hauv peb lub teb chaws nyob rau xyoo tas los no, tshwj xeeb tshaj yog kev txhawb nqa ntawm cov kev cai hauv tebchaws, kev tsim thiab kev siv ntawm PVC tubing tau tsim kev loj hlob zoo, cov zis ntawm PVC tubing tau suav txog ntau dua 50% ntawm tag nrho. zus tau tej cov yas tubing, uas yog dav siv nyob rau hauv ntau industries, kev lag luam, kev tsim kho, kev ua liaj ua teb, thiab lwm yam.
1. Kev tsim kho ntawm cov yeeb nkab PVC
1.1 Qhov zoo ntawm PVC yeeb nkab
Feem ntau cov resin ntau lawm, PVC resin noj yog qhov qis tshaj, cov nqi tsim khoom kuj yog qis tshaj.Kev noj ethylene ib tuj ntawm PVC hauv Suav teb yog 0.5314 tons, thaum qhov nruab nrab ethylene noj ib tuj ntawm polyethylene yog 1.042 tons.Kev siv ethylene ib tuj ntawm PVC cob hauv Suav teb yog li 50% tsawg dua li ntawm polyethylene.Thiab kev tsim cov PVC nrog cov khoom siv raw cov tshuaj chlorine, yog ib txoj hauv kev tseem ceeb rau kev sib npaug ntawm cov kua dej qab zib los tsim cov roj chlorine, caustic soda yog ib qho tseem ceeb heev raw khoom tseem ceeb rau kev lag luam hauv lub tebchaws.Tsis tas li ntawd, los ntawm qhov pom ntawm cov khoom yas, PVC thiab ntau yam additives yog qhov zoo sib xws, hauv kev tsim cov kav dej tuaj yeem ntxiv rau ntau tus nqi pheej yig, kom cov nqi tsim khoom tau txo qis heev.
Piv nrog cov kav hlau, PVC yeeb nkab ntau lawm ib cubic meter PVC thiab ntau lawm ib cubic meter steel thiab txhuas xam, steel zog noj yog 316KJ / m3, aluminium zog noj yog 619KJ / m3, PVC zog noj yog 70KJ / m3, uas yog, steel lub zog noj yog 4.5 npaug ntawm PVC, txhuas lub zog noj yog 8.8 npaug ntawm PVC.Kev tsim khoom ntawm PVC yeeb nkab ua lub zog noj tsuas yog ib feem peb ntawm tib txoj kab uas hla hlau yeeb nkab.Nyob rau tib lub sijhawm, vim tias PVC yeeb nkab phab ntsa yog du, tsis muaj qog nqaij hlav, kev siv dej ntau, siv rau kev hloov pauv tuaj yeem txuag tau li 20% ntawm hluav taws xob.
PVC yeeb nkab muaj cov khoom siv zoo, thiab muaj kev tiv thaiv corrosion zoo heev, lub teeb yuag hauv kev siv, yooj yim installation, tsis muaj txij nkawm, thiab kev siv hlau ua cov kav dej phwj hauv pej xeem, hauv cov txheej txheem ntawm kev siv vim yooj yim corrosion, yuav tsum tau ntau zaus. coated nrog cov xim, siab tu nqi.Kev tsim kho dav dav thiab kev ua haujlwm rau pej xeem nrog cov kav hlau hlau yuav tsum tau hloov pauv li ntawm 20 xyoo, thiab lub luag haujlwm ntawm cov kav dej PVC zoo, kev pab cuam lub neej txog li 50 xyoo, thiab lwm yam. Yog li ntawd, PVC yeeb nkab yog cov khoom yas zoo nrog cov nqi tsim khoom tsawg. , siab zog thiab corrosion kuj.
Feem ntau hais lus, nyob rau hauv cov nqe lus ntawm cov dej phwj tuaj, cov dej khib nyiab thiab qhov cua, cov kav dej PVC txuag tau li ntawm 16-37% ntawm kev teeb tsa thiab cov nqi zog tshaj li kev siv cov kav hlau cam khwb cia;Tus nqi ntawm cov yeeb nkab hlau yog 30-33% tsawg dua li cov hlau hlau bushing.Thiab lub luag hauj lwm ntawm chlorinated polyvinyl chloride (PVC) yeeb nkab nyob rau hauv dej kub thiab txias, piv nrog rau kev siv tib lub me me tooj liab yeeb nkab nqi txuag ntawm 23-44%.Yog li ntawd, vim yog qhov zoo ntawm PVC yeeb nkab, lub teb chaws tau nquag tsim thiab txhawb nqa PVC yeeb nkab.
1.2 Kev tsim thiab siv cov kav dej PVC
Txij li thaum xyoo 1980, peb lub teb chaws SUCCESSIVELY INTRODUCED DIFFER MODELS ntawm PVC yeeb nkab EXTRUSION PRODUCTION LINE ntawm ntau tshaj ib txhiab, uas tshwm sim zoo li DALIAN SHIDE, ZHEJIANG YONGGAO, Shanghai TOMCHEN PIANDS .Tam sim no, muaj ntau tshaj 600 UPVC (hard PVC) yeeb nkab thiab yeeb nkab fittings ntau lawm nroj tsuag nyob rau hauv peb lub teb chaws, muaj tag nrho cov muaj peev xwm ntawm ntau tshaj 1.1 lab tons / xyoo, ntau tshaj 30 manufacturers nrog ntau tshaj 10,000 tons / xyoo ntau lawm scale. , thiab ntau tshaj 60 lub tuam txhab nrog qhov ntsuas ntawm 0.5-10,000 tons / xyoo, cov cuab yeej tsim khoom ntawm UPVC yeeb nkab thiab cov yeeb nkab fittings yog qhov tseem ceeb hauv tsev.
Hauv peb lub tebchaws, PVC PIPE tau tsim ua ntej tshaj PE PIPE THIAB PP PIPE, ntau ntau yam, kev ua tau zoo heev, siv dav, tuav txoj haujlwm tseem ceeb hauv kev ua lag luam.Thaum kawg ntawm xyoo 1999, muaj ntau dua 2000 cov kab yas yeeb nkab ntau lawm hauv Suav teb, cov khoom siv txawv teb chaws suav txog li 15%.Nyob rau hauv 1999, lub peev xwm ntau lawm ntawm txhua yam yas tubing nyob rau hauv peb lub teb chaws tau tshaj 1.65 lab tons / xyoo, qhov tseeb zus tau tej cov 1 lab tons, thiab UPVC tubing account rau ntau tshaj 50%.
Tau ntau xyoo, nyob rau hauv lub ntiaj teb no PVC ua lag luam daim ntawv thov, lub tsev cov ntaub ntawv ua lag luam raws li qhov loj tshaj plaws, thiab qhov ceev tshaj plaws nce nyob rau hauv ceev.Nyob rau xyoo tas los no, Asmeskas cov khoom siv hauv tsev tsim khoom ib txwm siv 60% ntawm lawv cov khoom tag nrho, Western Europe 62%, Nyiv 50%, peb qhov kev faib ua feem tsawg dua 30%, nce chav.Hauv cov khoom siv hauv tsev, thiab cov yeeb nkab thiab profile feem ntau, nrog rau cov kav dej hauv tsev, cov kav dej ua liaj ua teb, cov yeeb nkab roj, cov yeeb nkab roj, thiab lwm yam.
Kev tsim thiab siv cov kav dej UPVC hauv Suav teb tau pib txhim kho sai heev thaum lub sijhawm Ninth Tsib-Year Plan, uas feem ntau tau txais txiaj ntsig los ntawm tsoomfwv txoj kev txhawb nqa muaj zog thiab tib neeg txoj kev nkag siab txog UPVC kav.
Tam sim no, daim ntawv thov ntawm cov yeeb nkab yas tau zoo heev tsim tsis tsuas yog nyob rau hauv kom muaj nuj nqis tab sis kuj nyob rau hauv ntau yam thiab specifications.Piv txwv li, UPVC yeeb nkab tau mus txog ntau dua 90% hauv kev siv cov kua dej hauv qee lub tsev hauv nroog, thiab feem ntau UPVC yeeb nkab lag luam tau txais txiaj ntsig zoo hauv xyoo tas los no.
Thaum Lub Kaum Ib Hlis 5-Xyoo Lub Sijhawm Npaj, UPVC THIAB PE Plastic Yeeb Nkab tau siv rau hauv kev txhawb nqa thiab siv cov kav dej yas, thiab lwm cov kav dej yas tshiab tau tsim muaj zog heev.Los ntawm 2005, nyob rau hauv lub teb chaws txoj kev tsim kho tshiab, kev tsim kho thiab kev nthuav dav, 50% ntawm lub tsev cov kav dej siv cov kav dej yas, 20% ntawm cov kav dej hauv nroog siv cov kav dej yas, 60% ntawm cov kav dej hauv lub tsev, cov kav dej kub thiab cov kav dej cua sov. siv cov kav dej yas, cov kav dej hauv nroog (Dn400 hauv qab) 50% siv cov kav dej yas, 60% ntawm cov kav dej hauv zos siv cov kav dej yas, 50% ntawm cov kav dej hauv nroog (cov kav dej nruab nrab thiab qis) siv cov kav dej yas, thiab 80% ntawm lub tsev hlau threading bushing siv cov kav dej yas.Nws tau kwv yees tias qhov kev thov rau cov raj yas hauv xyoo 2005 yog ntau dua 2 lab tons, feem ntau yog PVC tubing.
Hauv lub tebchaws tsim, PVC yeeb nkab noj feem ntau suav txog 70-80% ntawm cov yeeb nkab yas ua lag luam, thaum PVC yeeb nkab hauv peb lub teb chaws tsuas yog kwv yees li 50% ntawm tag nrho cov nyiaj ntawm cov yeeb nkab yas, txoj kev loj hlob ntawm PVC yeeb nkab hauv peb lub teb chaws. yog loj heev.Qhov kev faib ua feem ntawm cov kav dej PVC hauv cov teb chaws tsim yog: cov kav dej tso nyiaj rau 33%, cov kav dej hauv qab yog 22.3%, cov kav dej phwj suav txog 15.7%, cov kav dej tso nyiaj rau 5.2%, cov kav dej tso nyiaj rau 0.8%, lwm cov kav dej. tus account rau 22.7%.Qhov sib piv ntawm cov yeeb nkab haum thiab cov yeeb nkab yog li 1: 8.
Nyob rau hauv kev tsim kho kev lag luam, muaj ob hom PVC kav siv: ib tug yog siab-resistant yeeb nkab, ib tug yog siab-free yeeb nkab.cam khwb cia hlau yeeb nkab thiab tooj liab yeeb nkab feem ntau siv nyob rau hauv yav dhau los raws li cov ntaub ntawv hauv tsev siab-resistant tsis tsuas yog corroded tiag, tab sis kuj yuav tsum tau nquag tu thiab hloov, nrog cov nqi siab.Cov tsev txawv teb chaws tam sim no tau siv dav hauv cov kav dej siab, cov kav dej kub feem ntau siv cov yeeb nkab PVC.Me me caliber PVC yeeb nkab (UPVC yeeb nkab, CPVC yeeb nkab) muaj qhov zoo ntawm tus nqi qis, corrosion kuj, thiab tsis tas yuav tsum tau tu thiab hloov ntau zaus.Thiab loj caliber PVC siab yeeb nkab (inch nyob rau hauv 100-900mm) es tsis txhob cam khwb cia hlau yeeb nkab, txhim khu lub me av nkos yeeb nkab, dej system fluidity, corrosion kuj, tsis tshua muaj hnyav.Kev txuag hluav taws xob, dej zoo.Thiab PVC core txheej ua npuas dej siab tsis pub cov yeeb nkab raws li cov kav dej hauv tsev thiab cov kav dej nag, tuaj yeem daws cov teeb meem suab nrov ntawm cov kav dej hauv tsev.Cov kav dej siv hluav taws xob yog ua los ntawm cov yeeb nkab PVC uas tsis muaj zog, uas yog corrosion-resistant thiab tsis eroded los ntawm hydrogen sulfide, muaj lub neej ntev kev pab cuam, lub teeb yuag, tsis tshua muaj nqi installation, yooj yim mus cuag thiab foob, thiab tsis yooj yim rau tawg.Tsis tas li ntawd, kev tsim kho cov hlua hlua thiab cov hlua hauv av hauv av yog lwm txoj kev lag luam rau cov kav dej PVC, tam sim no cov ntau yam siv hauv Suav teb yog cov yeeb nkab txuas ncaj qha, ob phab ntsa yeeb nkab thiab ib phab ntsa hauv qab.
Cov yeeb nkab ua liaj ua teb yog lwm qhov dav ntawm PVC daim ntawv thov.Peb lub teb chaws tsis muaj peev txheej, tam sim no, feem ntau ntawm peb cov liaj teb tseem siv cov kwj dej kwj dej, cov dej khib nyiab loj heev.Thiab vim tsis muaj dej, ntau thaj av tsis zoo irrigated, thiab qoob loo yields tsawg.Thiab siv cov yeeb nkab PVC rau dej tuaj yeem txuag tau li 50% dej.Kev siv cov PVC tsau los yog ib nrab-fixed irrigation system ua liaj ua teb, tsis tsuas yog txuag dej, tab sis kuj tuaj yeem txhim kho cov khoom tsim tawm, cov khoom siv corrosion thiab lwm yam zoo, zoo heev txuag cov nqi dej thiab cov chaw txau.Tam sim no, peb lub teb chaws tseem tsis tau muaj ib lub nroog ua tiav cov kav dej tiag tiag, feem coob ntawm lub tebchaws tseem tsis muaj kev nkag siab yooj yim ntawm cov kav dej, yog li ntawd, nce kev tshaj tawm thiab kev txhawb nqa ntawm PVC yeeb nkab irrigation nyob rau hauv cov cheeb tsam, nws muaj peev xwm loj heev. .
1.3 PVC kav feem ntau siv hauv Suav teb
UPVC raj: Daim ntawv thov loj tshaj plaws ntawm UPVC raj yog kev tsim kho kev lag luam.Tam sim no, nws tau siv dav hauv cov kav dej thiab cov kav dej hauv tsev nyob hauv ntau lub xeev thiab nroog thoob plaws tebchaws.Nws yog tsuas yog siv los ua cov kav dej, cov kav dej nag thiab cov yeeb nkab threading hauv kev tsim kho kev lag luam.UPV tube muaj tshuaj tiv thaiv corrosion, nws tus kheej tua thiab nplaim hluav taws, zoo tiv thaiv molding, du sab hauv phab ntsa, zoo hluav taws xob kev ua tau zoo, tab sis lub UPVC raj toughness yog tsawg, linear expansion coefficient yog loj, siv ib tug nqaim kub ntau yam.Txoj kev loj hlob ntawm UPVC yeeb nkab muaj txiaj ntsig zoo.Kev tsim thiab siv UPVC yeeb nkab txuag 55-68% lub zog dua li cov yeeb nkab hlau cam khwb cia, kev tsim thiab siv UPVC cov yeeb nkab dej txuag 62-75% lub zog dua li cov yeeb nkab galvanized, thiab tus nqi ntawm chav tsev ntev ntawm tib lub ntsiab lus tsuas yog 1. / 2 ntawm galvanized yeeb nkab, thiab tus nqi installation yog 70% qis dua galvanized yeeb nkab.Siv 1 tuj ntawm UPVC cov kav dej tuaj yeem hloov tau 12 tons ntawm cam khwb cia hlau yeeb nkab.Ib tuj ntawm UPVC bellows tuaj yeem txuag tau 25 tons ntawm hlau.
Tub ntxhais ua npuas ncauj raj: Core txheej ua npuas ncauj yeeb nkab yog peb txheej, tag nrho cov txheej txheem extrusion nyob rau hauv kev tsim tawm ntawm sab hauv thiab sab nraud ob txheej yog tib yam li UPVC yeeb nkab zoo tib yam, qhov nruab nrab yog qhov txheeb ze ntom ntom yog 0.7 0.9 qis foaming txheej tshiab. hom yeeb nkab, lub nplhaib rau qhov nruj yog 8 npaug ntawm cov yeeb nkab UPVC zoo tib yam, thiab qhov kub hloov pauv thaum ob txhais taw muaj kev ruaj ntseg zoo, zoo thermal rwb thaiv tsev, tshwj xeeb tshaj yog cov tub ntxhais ua npuas ncauj txheej tuaj yeem txiav tawm cov suab nrov kis tau tus mob, haum rau kev siab siab. lub tsev tso kua dej system.
Piv nrog rau cov phab ntsa khoom, foamed core txheej raj tuaj yeem txuag tau ntau dua 25% cov khoom siv raw, thiab sab hauv phab ntsa compressive muaj peev xwm txhim kho zoo heev.Thiab nyob rau hauv lub puab phab ntsa nrog ib tug xov tooj ntawm convex kauv kab nyob rau hauv cov tub ntxhais txheej ua npuas ncauj silking yeeb nkab, dej ntws raws cov phab ntsa hauv cov yeeb nkab dawb thiab tsis tu ncua nyob rau hauv ib tug kauv zoo, tsim ib tug huab cua nyob rau hauv nruab nrab ntawm cov yeeb nkab ntws, yog li ntawd. tias cov yeeb nkab siab raug txo los ntawm 10%, lub peev xwm dav dav yog nce los ntawm 10 npaug, qhov hloov pauv tau nce 6 zaug, lub suab nrov yog 30-40dB qis dua li cov yeeb nkab UPVC zoo tib yam.
PVC RADIAL REINFORCED yeeb nkab: Kev tsim cov yeeb nkab no siv cov pwm tshwj xeeb thiab tsim cov cuab yeej ua raws, uas yog ib hom kev ua haujlwm hnyav-caliber super-muaj zog rib nplhaib iav grain yeeb nkab.Sab nrauv phab ntsa ntawm cov yeeb nkab yog nruab nrog radial reinforcement, uas tuaj yeem txhim kho qhov nruj thiab compressive lub zog ntawm cov yeeb nkab nplhaib, tshwj xeeb tshaj yog tsim rau cov dej hauv nroog engineering.
Ob chav phab ntsa bellows: Ob chav phab ntsa bellows yog tsim los ntawm extruding ob concentric hlab tib lub sij hawm, thiab ces welding lub txheej txheej ntawm lub bellows ntawm lub tooj liab raj nrog du sab hauv phab ntsa.Nrog rau sab hauv phab ntsa thiab corrugated sab nrauv phab ntsa, lub teeb yuag thiab lub zog siab, piv nrog UPVC yeeb nkab zoo tib yam tuaj yeem txuag tau 40-60% ntawm cov khoom siv raw, feem ntau yog siv los ua kev sib txuas lus cable guard yeeb nkab, lub tsev tso pa thiab cov kav dej ua liaj ua teb.
PVC PERMEable reinforced yeeb nkab: sab hauv thiab txheej ob txheej ntawm cov yas extrusion molding thiab ua los ntawm hluavtaws fiber ntau sandwiched nyob rau hauv nruab nrab, zoo yooj, khoov.PVC pob tshab yeeb nkab muaj cov kua qaub zoo, alkali tsis kam, roj tsis kam, kev laus ua haujlwm, tuaj yeem hloov cov yeeb nkab roj hmab, thiab tus nqi pheej yig.Dav siv rau nitrogen, oxygen, carbon monoxide thiab lwm yam gases thiab dej, dilute alkali, roj thiab lwm yam kua thauj, kuj yuav siv tau raws li dej rhaub, sprayer, gas cooker conduit.
CPVC yeeb nkab: CPVC yeeb nkab yog ib hom yas yeeb nkab uas muaj cua sov zoo, uas yog ua tiav los ntawm chlorinated polyvinyl chloride uas muaj ntau tshaj 66% chlorine.Lub thermal kub ntawm CPVC raj yog ntau tshaj 30 ℃ siab tshaj li ntawm UPVC raj, thiab qhov seem stability yog zoo dua, thiab cov linear expansion coefficient yog txo.CPVC lub raj muaj qhov ua kom sov zoo, kev laus ua haujlwm thiab tshuaj lom neeg corrosion, thiab tsis deform hauv dej kub.Nws tuaj yeem siv rau kev thauj mus los ntawm cov dej kub, cov kua dej corrosion-resistant thiab gases.Tuam Tshoj Yunnan Dian-huai Science thiab Technology Development Co., LTD tsim CPVC kav dej.
Post lub sij hawm: Aug-11-2022