isicelo

I-Pvc-o, igama lesiShayina elithi biaxial oriented polyvinyl chloride, iwuhlobo olusha lokuvela kwepayipi le-PVC, ngokusebenzisa ubuchwepheshe obukhethekile bokucubungula i-orientation ukwenza ipayipi, ipayipi le-PVC-U elikhiqizwa indlela ye-extrusion leluliwe nge-axially futhi circumferentially, ukuze Ama-molecule amaketango amade e-PVC epayipini ekuhlelweni kwe-biaxial.Kutholwe ipayipi elisha le-PVC elinamandla amakhulu, ukuqina okuphezulu, umthelela ophezulu kanye nokumelana nokukhathala.

Igama lesiShayina: i-biaxial orientation polyvinyl chloride

Igama lolimi lwangaphandle: PVC-O

Isicelo: Ukunikezwa kwamanzi kanye nobunjiniyela bokukhipha amanzi

Inkampani yokuqala: I-Uponor UK

Kwavela: 1970

Umlando Wentuthuko

I-PVC-O yasungulwa okokuqala ngabakwaYorkshirelmperial Plastics (Uponor) e-UK ngo-1970 futhi selokhu yakhiqizwa nguMolecor, Wawin nabanye.Esikhathini sokuqala, inqubo yokucubungula "okungaxhunyiwe ku-intanethi" (indlela yokucubungula izinyathelo ezimbili) yamukelwa, lapho i-extrusion yakheka futhi ipholile ingxenye yepayipi le-PVC-U (umbungu owugqinsi) wanwetshwa kusayizi odingekayo ekubunjweni ngokushisisa. futhi icindezela ukubona umumo.Ucwaningo lokuhlola kanye nokusetshenziswa okungokoqobo kufakazela ukuthi i-PVC-O inokusebenza okungavamile, kodwa inqubo yokucubungula "okungaxhunyiwe ku-inthanethi" inejubane eliphansi lokukhiqiza kanye nokutshalwa kwempahla ephezulu, futhi kunzima ukumemezela.Kamuva ithuthukiswe kunqubo ye-extrusion "in-line" orientation, ukukhiqizwa okuqhubekayo kwe-PVC-O.Inqubo yokukhiqiza iyindlela yokucubungula enesinyathelo esisodwa, okungukuthi, emgqeni wokukhipha ipayipi, ipayipi le-PVC-U (umbungu wezinto eziwugqinsi) likhishiwe ukuze kuzuzwe ukuma kwe-biaxial ngokusebenzisa ukunwetshwa kwendandatho kanye nokwelula kwe-axial, bese kuba ukupholisa nokubumba. ungene kwipayipi le-PVC-O.Inqubo yokukhiqiza ye-biaxial orientation "in-line" ithuthukisa kakhulu ukusebenza kahle kokukhiqiza, inciphisa izindleko zokukhiqiza futhi ithuthukise ukuncintisana kwe-PVC-O namanye amapayipi.Ngo-2014, i-Baoplastic Pipe, okuyibhizinisi lasekhaya, yahola ekuthuthukiseni ubuchwepheshe bokukhiqiza obuyisinyathelo esisodwa se-inthanethi, obuphule ukubusa kwezobuchwepheshe kwamabhizinisi angaphandle.

Ishubhu ye-PVC-O isetshenziswe e-UK, France, Holland, Portugal, USA, Australia, South Africa and Japan iminyaka eminingi.I-United States, i-Australia kanye namanye amazwe ashicilele izinga lomkhiqizo we-PVC-O, futhi i-International Standards Organization nayo ishicilele izinga le-PVC-O -ISO 16422-2014.Izinga lezwe lase-China elijwayelekile elithi “Oriented Polyvinyl chloride (PVC-O) Pipe and Fittings for Pressure Water Transportation” GB/T41422-2022 nalo limenyezelwe ngo-Ephreli 15, 2022, laqala ukusetshenziswa ngokusemthethweni ngoNovemba 1, 2022.

Ngenxa yokuthi ipayipi le-PVC-O liyi-axial futhi linwebeka eliyindilinga lepayipi le-PVC-U elakhiwe langempela, ukujiya kodonga lwepayipi kuncane.Uma kuqhathaniswa nepayipi lokuhlinzeka ngamanzi le-PVC-U, ubukhulu bodonga lwepayipi lokuhlinzeka ngamanzi le-PVC-O lingancishiswa ngo-35% -40%, okusindisa kakhulu impahla futhi kunciphisa izindleko.Ngesikhathi esifanayo, ngenxa yokuma kwama-molecule amaketango amade epayipi le-PVC-U elikhiqiziwe, ububanzi bepayipi buyanda ekucubungulweni, okwenza ukuqondiswa kwamangqamuzana ohlangothini lwendandatho kuletha ukuthuthuka okukhulu emandleni nasekuqineni. izici ezimbili zomzimba.Ukuma kwama-molecule kukhulisa kakhulu amandla amafushane - nesikhathi eside wento.Ngenxa yamandla avelele nokuqina, isici sokuphepha seminyaka engu-50 sezinto ezibonakalayo ze-PVC-O ze-MRS45 ne-MRS50 zingavezwa njengo-1.6 noma 1.4, ngakho ukucindezeleka komklamo wepayipi le-PVC-O kungaba kufika ku-28MPa no-32MPa.Isakhiwo se-lamellar esikhiqizwe i-molecular orientation processing siyisihluthulelo sokuqina okuphezulu kwe-PVC-O.Uma ukuqhekeka kwenzeka ngenxa yokukhubazeka kanye nemithwalo yamaphuzu, isakhiwo esinezingqimba sizovimbela ukuqhekeka ukuthi kungadluli ezintweni, futhi ukusakazeka kwe-crack kuvinjelwa ngokuphumelelayo ukugxila kokucindezeleka okuncishisiwe njengoba ukuqhekeka kudlula izingqimba.Olunye uhlobo olusha lwepayipi - ipayipi ye-PVC-M eguquliwe eqinisiwe, nakuba amandla ayo omthelela ethuthukisiwe, kodwa amandla okuqina awathuthukisiwe.

02

Inkambu yohlelo lokusebenza

Emazweni angaphandle, i-PVC-O isetshenziswa kakhulu epayipini lokuphakelwa kwamanzi, ipayipi lemayini, ipayipi lokubeka nokulungisa elingenamsele, inethiwekhi yamapayipi egesi kanye neminye imikhakha.Amanye amazwe kunethiwekhi yamapayipi amanzi okuphuza ekusetshenzisweni kwe-PVC-O akhula kancane kancane, abe esikhundleni se-PVC-U, ngokusho kombiko wocwaningo lwe-Wavin Group, iNetherlands, iFrance, iSpain, iNyakatho Melika, iNingizimu Melika, i-Australia kanye amanye amazwe anenani elikhulu lokusebenzisa ipayipi le-PVC-O.Inethiwekhi yamapayipi amanzi okuphuza eNetherlands inokusetshenziswa okungu-100% kwepayipi le-PVC-O, iFrance namanye amazwe eminyakeni emibili ezayo izokwamukelwa.Isetshenziswe kakhulu ekuhlinzekeni kwamanzi emadolobheni, amanzi okuphuza asemaphandleni, ukuchelela okonga amanzi kanye nokuthuthwa kwendle kanye neminye imikhakha.Indawo yasezimayini inzima kakhulu futhi izidingo zokuphepha ziqinile.Endaweni edlayo engaphansi komhlaba, ipayipi le-PVC-O elinamandla amakhulu, ukuqina okuphezulu, ukumelana nomthelela kanye nokungagqwali kunenzuzo yokuncintisana kakhulu.

03

Izinzuzo zezomnotho zokutshala imali embonini ye-PVC-O

I-Wavin Group e-Netherlands ikhiqize futhi yasebenzisa ipayipi le-PVC-O iminyaka eminingi.Ngokwezibalo ze-Wavin Group, uma kuqhathaniswa ne-PVC-U, ukutshalwa kwezimali kwepayipi le-PVC-O kanye nezindleko zimi kanje:

(1) Isilinganiso sokulondolozwa kwezinto ezingavuthiwe singu-11.58%.

(2) izikhathi ezingu-2.5-3 ngaphezulu kwe-PVC-O yokutshala izimali (eYurophu).

(3) Isivuno singama-300-650 kg / h, futhi ubude bukhuphuka ngo-20% -40%.

(4) Izinga lokwenqatshwa likhuphuka ngo-2% -4%.

(5) Khulisa ukusetshenziswa kwamandla ngo-25%.

(6) 10% -15% ukwenyuka kwezindleko zokusebenza kwabasebenzi.

(7) Ubude bomugqa wokukhiqiza buzokwenyuswa ngama-25%.

Ngokwezibalo eziphelele, ukutshalwa kwezimali kwepayipi elingu-1 m kungancishiswa ngo-33% -44%, futhi intengo inganyuswa ngo-10% -15%.Okubonakalayo, ipayipi le-PVC-O wutshalomali lwesikhathi esisodwa, imali engenayo yokuphila konke.

Njengamanje, izinkampani ezifuywayo zamapayipi epulasitiki e-Bao nazo zihlinzeka ngokudluliswa kobuchwepheshe nezinkonzo embonini efanayo, okufinyelelwe kuyo okuhlanganisa iSichuan Yibin Tianyuan, iBrazil Cole namanye amabhizinisi amakhulu okucubungula ipulasitiki.

04

Ithemba Lentuthuko

Ukushintsha nokuthuthuka kwesimo samazwe ngamazwe kunikeza ithuba lomlando elingakaze libonwe ngaphambili lokuthuthukiswa kohlelo lwamapayipi e-PVC ezweni lethu.Izinhlelo zamapayipi e-Polyhydrocarbon, ezincintisana nezinhlelo zamapayipi e-PVC ezinhlelweni eziningi ngenxa yokukhuphuka kwentengo kawoyela, ziye zathinteka kakhulu, kuyilapho i-PVC esekelwe ngamalahle ikhulise ukuncintisana kwayo ngokugcina amanani aphansi.

Uhlelo lwamapayipi e-PVC luneminyaka engaba ngu-70 yomlando wokuthuthukiswa, ngenxa ye-modulus ephezulu, amandla aphezulu kanye nezinzuzo zamanani aphansi, ngakho-ke kube ukusetshenziswa okukhulu kakhulu kwesistimu yamapayipi epulasitiki, iye yasetshenziswa kabanzi emikhakheni eminingi emphakathini wanamuhla.Ngokuthuthuka okusheshayo kwemboni yamapayipi epulasitiki aseShayina, isibe ngelinye lamazwe amakhulu okukhiqizwa nokusetshenziswa kwamapayipi epulasitiki emhlabeni.Umthamo wokukhiqiza we-PVC PIPE ezweni lakithi angaphezu kwezigidi ezi-2 t/a, kuphela okulinganiselwa ku-50% yenani eliphelele lamapayipi epulasitiki, kanti emazweni athuthukile, ukusetshenziswa kwepayipi le-PVC ngokuvamile kubalelwa ku-70% -80% yemakethe yamapayipi epulasitiki.

Ngekhulu lama-21, ipayipi le-PVC libhekene nezimbangi eziningi, ikakhulukazi ngenxa yokuthuthukiswa okusobala kwezakhiwo ze-resin ezifana ne-HDPE (njenge-PE63 kuya ku-PE80 ne-PE100), ipayipi le-PE linokuqina okuhle kakhulu kanye nokumelana nomthelela wesando samanzi.Ngaphezu kwalokho, ukugxekwa kwe-chlorine yizinhlangano zokuvikela imvelo emazweni ahlukahlukene kwenza amapayipi e-PVC abhekane nesimo esinzima.Kodwa-ke, bekunganakwa isikhathi eside ukuthi amapayipi e-PVC angavimbela ukungena kwezinye izinto ezinobuthi neziyingozi kangcono kunamapayipi e-PE.Esikhathini esizayo semakethe yamapayipi omhlaba endaweni evelele noma ipayipi le-PVC, isizathu esiyinhloko sisekusunguleni izinto ezintsha zobuchwepheshe, inqubekelaphambili yezobuchwepheshe.Ukusetshenziswa kobuchwepheshe obusha be-PVC resin kanye nepayipi le-PVC, ikakhulukazi ukusungulwa kobuchwepheshe bokucubungula amapayipi e-PVC kanye nenqubo, kuye kwathuthukisa kakhulu umnotho wepayipi le-PVC futhi kwavula izinkambu ezintsha zokufaka izicelo.