ntchito

PVC-o, Chinese dzina biaxial oriented polyvinyl kolorayidi, ndi mtundu watsopano wa chisinthiko wa PVC chitoliro, mwa luso lapadera lolunjika processing kupanga chitoliro, ndi PVC-U chitoliro opangidwa ndi extrusion njira anatambasula axially ndi circumferentially, kuti PVC unyolo mamolekyu yaitali mu chitoliro mu dongosolo biaxial.Chitoliro chatsopano cha PVC chokhala ndi mphamvu zambiri, kulimba kwambiri, kukhudzidwa kwakukulu ndi kukana kutopa kunapezedwa.

Dzina lachi China: biaxial orientation polyvinyl chloride

Dzina lachilankhulo chakunja: PVC-O

Ntchito: Ukatswiri wopezera madzi ndi ngalande

Kampani yoyambirira: Uponor UK

Idasinthidwa: 1970

Mbiri Yachitukuko

PVC-O idapangidwa koyamba ndi Yorkshirelmperial Plastics (Uponor) ku UK mu 1970 ndipo idapangidwa ndi Molecor, Wawin ndi ena.Kumayambiriro koyambirira, njira yopangira "off-line" (njira yopangira masitepe awiri) idakhazikitsidwa, momwe gawo la chitoliro la PVC-U linakhazikika ndikukhazikika (kamwana kamwana kakang'ono) kanakulitsidwa mpaka kukula kofunikira mu nkhungu ndi kutentha. ndi kukanikiza kuzindikira orientation.Kafukufuku woyeserera ndi kugwiritsa ntchito kothandiza kumatsimikizira kuti PVC-O ili ndi magwiridwe antchito modabwitsa, koma njira yopangira "yopanda intaneti" imakhala ndi liwiro lotsika lopanga komanso ndalama zambiri za zida, ndipo ndizovuta kufalitsa.Kenako anayamba mu ndondomeko extrusion "mu-mzere" lathu, mosalekeza kupanga PVC-O.The ndondomeko kupanga ndi sitepe imodzi processing njira, ndiko kuti, mu chitoliro extrusion mzere, PVC-U chitoliro (wandiweyani zinthu mwana wosabadwayo) wakhala extruded kukwaniritsa biaxial lolunjika kudzera mphete kukulitsa ndi axial kutambasula, ndiyeno kuzirala ndi kupanga. mu chitoliro cha PVC-O."In-line" biaxial orientation production process imathandizira kwambiri kupanga bwino, kumachepetsa ndalama zopangira ndikukulitsa mpikisano wa PVC-O ndi mapaipi ena.Mu 2014, Baoplastic Pipe, bizinesi yapakhomo, idatsogola pakupanga ukadaulo wowuma pa intaneti wa sitepe imodzi, womwe unaphwanya ulamuliro waukadaulo wamabizinesi akunja.

PVC-O chubu lakhala likugwiritsidwa ntchito mu UK, France, Holland, Portugal, USA, Australia, South Africa ndi Japan kwa zaka zambiri.United States, Australia ndi mayiko ena asindikiza mulingo wa PVC-O, ndipo International Standards Organisation yatulutsanso muyezo wa PVC-O -ISO 16422-2014.Muyezo wa dziko la China "Oriented Polyvinyl chloride (PVC-O) Pipe and Fittings for Pressure Water Transportation" GB/T41422-2022 idalengezedwanso pa Epulo 15, 2022, ndipo idakhazikitsidwa mwalamulo pa Novembara 1, 2022.

Chifukwa PVC-O chitoliro ndi axial ndi circumferential kutambasula choyambirira anapanga PVC-U chitoliro, khoma makulidwe a chitoliro ndi woonda.Poyerekeza ndi chitoliro cha madzi a PVC-U, makulidwe a khoma la chitoliro cha madzi a PVC-O akhoza kuchepetsedwa ndi 35% -40%, zomwe zimapulumutsa kwambiri zinthuzo ndi kuchepetsa mtengo.Panthawi imodzimodziyo, chifukwa cha kuwongolera kwa ma molekyulu aatali a chitoliro cha PVC-U chopangidwa, kukula kwa chitoliro kumawonjezeka pokonzekera, zomwe zimapangitsa kuti maselo azitha kulowera mbali ya mphete ndikubweretsa kusintha kwakukulu mu mphamvu ndi kulimba. wa zinthu ziwiri zakuthupi.Mayendedwe a mamolekyu amachulukitsa kwambiri mphamvu zazifupi komanso zazitali zazinthuzo.Chifukwa champhamvu komanso kulimba kwamphamvu, chitetezo chazaka 50 cha zinthu za PVC-O za MRS45 ndi MRS50 zitha kufotokozedwa ngati 1.6 kapena 1.4, kotero kupanikizika kwa chitoliro cha PVC-O kumatha kukhala mpaka 28MPa ndi 32MPa.Mapangidwe a lamellar opangidwa ndi ma cell orientation processing ndiye chinsinsi cha kulimba kwa PVC-O.Ngati ming'alu imachitika chifukwa cha zolakwika ndi zolemetsa, mawonekedwe osanjikiza amalepheretsa kuti mng'aluyo asadutse zinthuzo, ndipo kufalikira kwa ming'alu kumalepheretsedwa bwino chifukwa cha kuchepa kwa nkhawa pamene mng'aluyo ukudutsa m'magawo.Mtundu wina watsopano wa chitoliro - toughened kusinthidwa PVC-M chitoliro, ngakhale mphamvu mphamvu zake bwino, koma kumakoka mphamvu si bwino.

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Munda wa Ntchito

M'mayiko akunja, PVC-O zimagwiritsa ntchito payipi madzi, payipi mgodi, trenchless anagona ndi kukonza payipi, gasi chitoliro maukonde ndi madera ena.Mayiko ena mu maukonde madzi akumwa chitoliro mu ntchito PVC-O pang'onopang'ono kukula, kukhala m'malo PVC-U, malinga ndi lipoti kafukufuku Wavin Gulu, Netherlands, France, Spain, North America, America South, Australia ndi maiko ena amagwiritsa ntchito mapaipi ambiri a PVC-O.Maukonde a mapaipi amadzi akumwa ku Netherlands ali ndi 100% yogwiritsa ntchito chitoliro cha PVC-O, France ndi mayiko ena m'zaka ziwiri zapitazi onse adzalandiridwa.Zakhala zikugwiritsidwa ntchito kwambiri popereka madzi akumidzi, madzi akumwa akumidzi, ulimi wothirira wopulumutsa madzi ndi ngalande zachimbudzi ndi minda ina.Malo a mgodi ndi ovuta kwambiri ndipo zofunikira zachitetezo ndizokhwima kwambiri.M'malo owononga apansi panthaka, payipi ya PVC-O yokhala ndi mphamvu zambiri, kulimba kwambiri, kukana kwamphamvu komanso kusadziteteza kuli ndi mwayi wopikisana kwambiri.

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Ubwino wazachuma pakuyika ndalama mumakampani a PVC-O

Gulu la Wavin ku Netherlands lapanga ndikugwiritsa ntchito chitoliro cha PVC-O kwa zaka zambiri.Malinga ndi ziwerengero za Wavin Group, poyerekeza ndi PVC-U, ndalama za PVC-O ndi ndalama zomwe zimagwiritsidwa ntchito ndi izi:

(1) Kupulumutsa kwapakati kwa zinthu zopangira ndi 11.58%.

(2) 2.5-3 nthawi zambiri PVC-O ndalama (ku Ulaya).

(3) Zokolola ndi 300-650 kg / h, ndipo kutalika kumawonjezeka ndi 20% -40%.

(4) Chiwerengero cha kukana chikuwonjezeka ndi 2% -4%.

(5) Onjezani kugwiritsa ntchito mphamvu ndi 25%.

(6) 10% -15% kuwonjezeka kwa ogwira ntchito ndalama.

(7) Kutalika kwa mzere wopanga kudzawonjezedwa ndi 25%.

Ndi mawerengedwe athunthu, ndalama za 1 mita chitoliro zitha kuchepetsedwa ndi 33% -44%, ndipo mtengo ukhoza kuwonjezeka ndi 10% -15%.Zooneka, PVC-O chitoliro ndi ndalama kamodzi, ndalama moyo.

Pakali pano, makampani zoweta Bao pulasitiki chitoliro akuperekanso luso kusamutsa ndi ntchito makampani omwewo, amene anafika kuphatikizapo Sichuan Yibin Tianyuan, Brazil Cole ndi mabizinesi ena lalikulu pulasitiki processing.

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Chiyembekezo cha Chitukuko

Kusintha ndi chitukuko cha zochitika zapadziko lonse lapansi kumapereka mwayi wa mbiri yakale womwe sunachitikepo pakupanga dongosolo la chitoliro cha PVC m'dziko lathu.Makina opangira mapaipi a polyhydrocarbon, omwe amapikisana ndi makina opangira mapaipi a PVC m'mapulogalamu ambiri chifukwa cha kukwera mtengo kwamafuta, akhudzidwa kwambiri, pomwe PVC yokhala ndi malasha yawonjezera mpikisano wake posunga mitengo yotsika.

PVC mapaipi dongosolo ali pafupifupi zaka 70 za mbiri yachitukuko, chifukwa cha modulus wake mkulu, mphamvu mkulu ndi ubwino mtengo otsika, choncho wakhala ntchito yaikulu padziko lonse ya dongosolo pulasitiki mapaipi, wakhala chimagwiritsidwa ntchito m'madera ambiri anthu masiku ano.Ndi chitukuko chofulumira cha mafakitale a mapaipi apulasitiki aku China, chakhala chimodzi mwa mayiko akuluakulu opanga mapaipi apulasitiki ndikugwiritsa ntchito padziko lapansi.Mphamvu yopanga PVC PIPE m'dziko lathu ndi yoposa 2 miliyoni t/a, imangowerengera pafupifupi 50% ya chitoliro chonse cha pulasitiki, pomwe m'maiko otukuka, kugwiritsa ntchito chitoliro cha PVC nthawi zambiri kumakhala 70% -80% za msika wamapaipi apulasitiki.

M'zaka za m'ma 2100, chitoliro cha PVC chimayang'anizana ndi omwe akupikisana nawo ambiri, makamaka chifukwa cha kusintha koonekeratu kwa zinthu za utomoni monga HDPE (monga PE63 mpaka PE80 ndi PE100), chitoliro cha PE chimakhala cholimba kwambiri komanso kukana kukana kwa nyundo yamadzi.Kuphatikiza apo, kutsutsidwa kwa chlorine ndi mabungwe oteteza zachilengedwe m'maiko osiyanasiyana kumapangitsa kuti mapaipi a PVC akumane ndi vuto lalikulu.Komabe, zanyalanyazidwa kwa nthawi yayitali kuti mapaipi a PVC amatha kuletsa kulowa kwa zinthu zoopsa komanso zovulaza kuposa mapaipi a PE.M'tsogolomu msika wa chitoliro chapadziko lonse lapansi paudindo waukulu kapena chitoliro cha PVC, chifukwa chachikulu chagona paukadaulo waukadaulo, kupita patsogolo kwaukadaulo.Kugwiritsa ntchito luso laukadaulo la PVC utomoni ndi chitoliro cha PVC, makamaka luso laukadaulo waukadaulo wa PVC chitoliro ndi njira, zasintha kwambiri chuma cha chitoliro cha PVC ndikutsegula minda yatsopano yofunsira.