isicelo

Umbhobho oqinileyo wePVC, ukufakwa kombhobho kwiimveliso ezininzi zePVC, kwindlela yethu yokukhula ngokukhawuleza, ikwangowona setyenziso lukhulu lwemibhobho yeplastiki eyahlukeneyo.Ngokusebenzisa ipropaganda kunye nokukhuthazwa kwetyhubhu ye-PVC kwilizwe lethu kwiminyaka yakutshanje, ngokukodwa ukuxhaswa kwemigaqo-nkqubo yesizwe efanelekileyo, ukuveliswa kunye nokusetyenziswa kwe-PVC ityhubhu yenze uphuhliso olukhulu, imveliso ye-PVC yetyhubhu iye yabala ngaphezu kwe-50% yetotali. ukuveliswa kwetyhubhu yeplastiki, esetyenziswa ngokubanzi kumashishini amaninzi, kumashishini, ukwakhiwa, ezolimo, njl.

1. Ukuphuhliswa kombhobho wePVC

1.1 Izinto eziluncedo zombhobho wePVC

Kwimveliso ye-resin ngokubanzi, ukusetyenziswa kwe-resin ye-PVC yeyona nto iphantsi, iindleko zemveliso nazo ziphantsi.Ukusetyenziswa kwe-ethylene ngetoni ye-PVC e-China yi-0.5314 yeetoni, ngelixa ukusetyenziswa kwe-ethylene ngetoni ye-polyethylene yi-1.042 yeetoni.Ukusetyenziswa kwe-ethylene ngetoni ye-PVC ye-resin e-China malunga ne-50% ngaphantsi kwe-polyethylene.Kwaye ukuveliswa kwe-PVC kunye negesi yeklorin ekrwada, yindlela ebalulekileyo yokulungelelanisa imveliso ye-caustic soda ukuvelisa igesi ye-chlorine, i-caustic soda yinto ebaluleke kakhulu ekrwada ebalulekileyo kuqoqosho lwesizwe.Ukongezelela, ukusuka kwimbono yeemveliso zeplastiki, i-PVC kunye neentlobo zezongezo zihambelana kakuhle, ekuveliseni imibhobho kunokongezwa kwinani elikhulu lokuzaliswa kwexabiso eliphantsi, ukwenzela ukuba iindleko zokuvelisa zincitshiswe kakhulu.

Xa kuthelekiswa nemibhobho yesinyithi, ukuveliswa kombhobho wePVC ngecubic meter nganye kunye nemveliso yecubic meter yentsimbi kunye nokubala kwe-aluminium, ukusetyenziswa kwamandla entsimbi yi-316KJ / m3, ukusetyenziswa kwamandla kwe-aluminium yi-619KJ / m3, ukusetyenziswa kwamandla e-PVC yi-70KJ / m3, oko kukuthi, intsimbi. ukusetyenziswa kwamandla ngamaxesha e-4.5 ye-PVC, ukusetyenziswa kwamandla kwe-aluminium ngama-8.8 amaxesha e-PVC.Ukuveliswa kokusetyenziswa kwamandla kombhobho we-PVC sisinye kwisithathu sombhobho wesinyithi ofanayo.Kwangaxeshanye, ngenxa yokuba udonga lombhobho wePVC lugudileyo, akukho thumba lokubola, ukusebenza kakuhle kokuhanjiswa kwamanzi, okusetyenziselwa utofelo-gazi kunokonga malunga ne-20% yombane.

Umbhobho wePVC uneempawu ezilungileyo zoomatshini, kwaye unokumelana nokugqwesa okugqwesileyo, ubunzima obulula kwinkqubo yokusetyenziswa, ukufakwa lula, akukho kugcinwa, kunye nokusetyenziswa kwentsimbi njengombhobho wogutyulo lukawonkewonke, kwinkqubo yokusetyenziswa ngenxa yokubola lula, kufuneka rhoqo. iqatywe ngepeyinti, iindleko eziphezulu zokugcina.Ulwakhiwo jikelele kunye nemisebenzi yoluntu ngemibhobho yesinyithi kufuneka itshintshwe malunga neminyaka engama-20, kunye nendima ye-PVC eqhutywe kakuhle, ubomi benkonzo ukuya kwiminyaka engama-50, njl. , amandla aphezulu kunye nokuxhathisa ukubola.

Ngokuqhelekileyo, ngokumalunga nogutyulo, amanzi amdaka kunye nemibhobho yokungenisa umoya, imibhobho ye-PVC igcina malunga ne-16-37% yofakelo kunye neendleko zokusebenza kunokusebenzisa imibhobho yentsimbi;Iindleko zombhobho wocingo ngama-30-33% ngaphantsi kwe-wire bushing yentsimbi.Kwaye indima chlorinated polyvinyl chloride (PVC) umbhobho kumanzi ashushu nabandayo, xa kuthelekiswa nokusetyenziswa ubungakanani efanayo umbhobho yobhedu iindleko ukonga 23-44%.Ngoko ke, ngenxa yeenzuzo zombhobho wePVC, amazwe aphuhlisa ngenkuthalo kwaye akhuthaze umbhobho wePVC.

1.2 Ukuveliswa kunye nokusetyenziswa kwemibhobho yePVC

Ukusukela ngeminyaka yee-1980, ILIZWE LETHU LIBENGE NGEMPUMELELO IMIZEKELISO EZAHLUKENEYO PVC umbhobho EXTRUSION IMVELISO LINE NGAPHEZU KWE-WAKA ELINYE, eyavela NJENGDALIAN SHIDE, ZHEJIANG YONGGAO, Shanghai TOMCHEN KUNYE NEZINYE IMIPIPE EMKHULU OMKHULU.Okwangoku, kukho ngaphezu kwe-600 UPVC (i-PVC enzima) umbhobho kunye nezityalo zokufakelwa kombhobho kwilizwe lethu, kunye nomthamo wemveliso ongaphezu kwe-1.1 yezigidi zeetoni / ngonyaka, abavelisi abangaphezu kwama-30 kunye neetoni ezingaphezu kwe-10,000 / ngonyaka wemveliso. , kunye nabavelisi abangaphezu kwe-60 kunye nomlinganiselo weetoni ze-0.5-10,000 / ngonyaka, izixhobo zokuvelisa umbhobho we-UPVC kunye nezixhobo zombhobho zifezekiswa ngokusisiseko ekhaya.

ELIZWE LETHU, UMbhobho wePVC WAPHUHLISWA NGAPHAMBILI KUNE-PE PIPE KUNYE NE-PP IPE, iintlobo ezininzi, ukusebenza okugqwesileyo, kusetyenziswe ngokubanzi, kukwindawo ebalulekileyo kwimarike.Ekupheleni kuka-1999, bekukho ngaphezu kwe-2000 imigca yokuvelisa imibhobho yeplastiki e-China, phakathi kwayo izixhobo ezithunyelwa ngaphandle zibalelwa malunga ne-15%.Ngo-1999, umthamo wemveliso yazo zonke iintlobo zeetyhubhu zeplastiki kwilizwe lethu udlule kwi-1.65 yezigidi zeetoni / ngonyaka, imveliso yokwenene malunga ne-1 yezigidi zeetoni, kunye ne-UPVC ye-tubing ibalwa ngaphezu kwe-50%.

Ukutyhubela iminyaka, isicelo semakethi yePVC kwihlabathi, intengiso yezixhobo zokwakha njengeyona inkulu, kunye nokwanda ngokukhawuleza kwesantya.KWIMINYAKA YAKUTSHANJE, IIMVELISO ZEZINTO EZAKHIWAYO zaseMelika zihlala zithatha i-60% YEMVELISO EZIPHELELEYO, eNtshona Yurophu 62%, Japan 50%, umlinganiselo wethu ungaphantsi kwama-30%, igumbi lokunyuka.Kwiimveliso zezinto zokwakha, kunye nombhobho kunye neprofayili ngokukodwa, kubandakanywa umbhobho wamanzi wokwakha, umbhobho wokunkcenkceshela wezolimo, umbhobho wegesi, umbhobho weoli ekrwada, njl.

Ukuveliswa kunye nokusetyenziswa kwemibhobho ye-UPVC e-China yaqala ukukhula ngokukhawuleza ngexesha leSicwangciso seMinyaka emiHlanu yesithoba, esaxhamla kakhulu kwinkxaso eyomeleleyo karhulumente kunye nokuqonda koluntu malunga nemibhobho ye-UPVC.

Okwangoku, ukusetyenziswa kombhobho weplastiki kuye kwaphuhliswa kakhulu kungekhona nje ngobuninzi kodwa nakwiindidi kunye neenkcukacha.Ngokomzekelo, umbhobho we-UPVC ufikelele ngaphezu kwe-90% ekusetyenzisweni kwamanzi kwezinye izakhiwo zasezidolophini, kwaye amaninzi amashishini emibhobho ye-UPVC afumene izibonelelo ezilungileyo kwiminyaka yamuva.

Ngexesha leSicwangciso seminyaka yeSHUMI IMINYAKA EMIHLANU, IMIbhobho ye-UPVC NE-PE PLASTIC yayiSETYENZISWA KAKHULU EKUKHUSELENI nasekufakeni imibhobho yeplastiki, kunye neminye imibhobho yeplastiki emitsha yaphuhliswa ngamandla.Ngo-2005, kulwakhiwo olutsha lwelizwe, ulwakhiwo ngokutsha kunye nolwandiso lweeprojekthi zelizwe, i-50% yemibhobho yokuhambisa amanzi esebenzisa imibhobho yeplastiki, i-20% yemibhobho yokuhambisa amanzi yasezidolophini esebenzisa imibhobho yeplastiki, i-60% yobonelelo lwamanzi kwisakhiwo, unikezelo lwamanzi ashushu kunye nemibhobho yokufudumeza. kusetyenziswa imibhobho yeplastiki, imibhobho yonikezelo lwamanzi ezidolophini (i-Dn400 ngezantsi) i-50% isebenzisa imibhobho yeplastiki, i-60% yemibhobho yonikezelo lwamanzi kwilali esebenzisa imibhobho yeplastiki, i-50% yemibhobho yegesi yasezidolophini (imibhobho yoxinzelelo oluphakathi nophantsi) isebenzisa imibhobho yeplastiki, kunye nama-80% kwisakhiwo socingo lokuthunga bushing sebenzisa imibhobho yeplastiki.Kuqikelelwa ukuba imfuno yetyhubhu yeplastiki ngo-2005 ingaphezulu kwe-2 yezigidi zeetoni, uninzi lwazo ziyi-PVC tubing.

Kwilizwe eliphuhlileyo, ukusetyenziswa kwemibhobho ye-PVC ngokuqhelekileyo kubalela i-70-80% yemarike yombhobho weplastiki, ngelixa umbhobho wePVC kwilizwe lethu kuphela malunga ne-50% yexabiso lilonke lombhobho weplastiki, amandla okuphuhliswa kombhobho wePVC kwilizwe lethu. inkulu kakhulu.Umyinge wokusetyenziswa kwemibhobho ye-PVC kumazwe aphuhlileyo yile: imibhobho yonikezelo lwamanzi i-33%, imibhobho yamanzi ephantsi i-22.3%, imibhobho yelindle i-15.7%, imibhobho yokunkcenkceshela i-5.2%, imibhobho yegesi i-0.8%, eminye imibhobho. Ibalelwa kuma-22.7%.Umlinganiselo wokusetyenziswa kokufakwa kombhobho kunye nombhobho malunga ne-1: 8.

Kwimarike yokwakha, kukho iindidi ezimbini zemibhobho yePVC esetyenziswayo: enye ingumbhobho onganyangekiyo kuxinzelelo, enye ingumbhobho ongenaxinzelelo.Umbhobho wentsimbi kunye nombhobho wobhedu owawudla ngokusetyenziswa mandulo njengezinto zokwakha ezikwaziyo ukumelana noxinzelelo azipheleli nje ekudlwenguleni kakhulu, kodwa zifuna ukulungiswa rhoqo kunye nokutshintshwa, ngeendleko eziphezulu.Izakhiwo zangaphandle ngoku zisetyenziswa ngokubanzi umbhobho wamanzi woxinzelelo, umbhobho wokuhambisa amanzi ashushu ikakhulu usebenzisa umbhobho wePVC.Umbhobho omncinci we-PVC (umbhobho we-UPVC, umbhobho we-CPVC) uneenzuzo zeendleko eziphantsi, ukuxhathisa ukubola, kwaye akukho mfuneko yokugcinwa rhoqo kunye nokutshintshwa.Kwaye umbhobho omkhulu woxinzelelo lwe-PVC (ububanzi kwi-100-900mm) endaweni yombhobho wentsimbi, uphucule umbhobho omncinci wodaka, inkqubo yokubonelela ngamanzi, ukuxhathisa ukubola, ubunzima obuphantsi.Ukonga umbane, umgangatho olungileyo wamanzi.Kwaye PVC core umaleko amagwebu uxinzelelo umbhobho free njengoko umbhobho wamanzi angaphakathi kunye nombhobho inkqubo yamanzi emvula, unokusombulula ingxaki ingxolo yombhobho wamanzi angaphakathi.Umbhobho welindle osetyenziswayo wenziwe ngombhobho wePVC ongaxinzelelwanga, onganyangekiyo kwi-corrosion kwaye awukhukuliswanga yi-hydrogen sulfide, unobomi obude benkonzo, ubunzima obulula, ixabiso eliphantsi lofakelo, kulula ukuxhuma kunye nokutywinwa, kwaye akukho lula ukuphuka.Ukongeza, ukwakhiwa kombhobho wentambo kunye nombhobho wokugada ongaphantsi komhlaba yenye imarike yemibhobho ye-PVC, okwangoku iindidi ezisetyenziswa e-China ngumbhobho wokwandisa ngokuthe ngqo, umbhobho wodonga oluphindwe kabini kunye nemibhobho yodonga olulodwa.

Umbhobho wezolimo yenye indawo ebanzi yesicelo sePVC.Ilizwe lethu linqongophele kwizinto eziluncedo, okwangoku, uninzi lwamafama ethu lusasebenzisa unkcenkceshelo lwemijelo, inkunkuma yamanzi imbi kakhulu.Kwaye ngenxa yokungabikho kwamanzi, umhlaba omninzi wokulima awunkcenkceshelwa kakuhle, kwaye izivuno zezityalo ziphantsi.Kwaye ukusebenzisa umbhobho wePVC ukunkcenkceshela kunokonga malunga ne-50% yamanzi.Ukusetyenziswa kwenkqubo yokunkcenkceshela ye-PVC esisigxina okanye eqingqiweyo, ayigcini nje kuphela amanzi, kodwa inokuphucula imveliso, ukubola kwezixhobo kunye nezinye iingenelo, ukonga kakhulu iindleko zokunkcenkceshela kunye nokutshiza.Okwangoku, ilizwe lethu alikabikho kwisiphaluka esipheleleyo sokunkcenkceshela umbhobho wokwenene, uninzi lwelizwe lusaswele ukuqonda okusisiseko kokunkcenkceshela kombhobho, ngoko ke, ukwandisa upapasho kunye nokukhuthaza ukunkcenkceshela umbhobho wePVC kwiindawo ezisemaphandleni, amandla ayo makhulu kakhulu. .

1.3 imibhobho yePVC edla ngokusetyenziswa eTshayina

Ityhubhu ye-UPVC: Esona sicelo sikhulu setyhubhu ye-UPVC yishishini lokwakha.Okwangoku, isetyenziswa ngokubanzi kwinkqubo yombhobho wamanzi kunye nombhobho wamanzi wokuhlala kumaphondo ahlukeneyo kunye nezixeko kulo lonke ilizwe.Isetyenziswa ikakhulu njengombhobho wokuhambisa amanzi, umbhobho wemvula kunye nombhobho wokuthunga kushishino lokwakha.I-tube ye-UPV inokumelana nokubola kweekhemikhali, ukuzicima kunye ne-flame retardant, ukuchasana kakuhle nokubumba, udonga lwangaphakathi olugudileyo, ukusebenza kakuhle kombane, kodwa i-tube ye-UPVC yokuqina iphantsi, i-coefficient yokwandisa i-linear inkulu, ukusetyenziswa kweqondo lokushisa elincinci.Ukuphuhliswa kombhobho we-UPVC kuneenzuzo ezicacileyo.Ukuveliswa kunye nokusetyenziswa kombhobho we-UPVC wonga amandla angama-55-68% kunombhobho wentsimbi, ukuveliswa kunye nokusetyenziswa kombhobho wonikezelo lwamanzi we-UPVC wonga amandla angama-62-75% kunombhobho we-galvanized, kwaye ixabiso leyunithi yobude benkcazo efanayo yi-1 kuphela. / 2 yombhobho wegalvanized, kunye neendleko zokufakela i-70% ngaphantsi kombhobho we-galvanized.Ukusebenzisa itoni enye yombhobho wonikezelo lwamanzi we-UPVC unokutshintsha iitoni ezili-12 zombhobho wentsimbi.Itoni enye yemivumbo ye-UPVC inokonga iitoni ezingama-25 zentsimbi.

ityhubhu amagwebu Core: Core umaleko umbhobho amagwebu umaleko ezintathu, iyonke inkqubo extrusion kwimveliso yangaphakathi nangaphandle umaleko ezimbini iyafana umbhobho eqhelekileyo UPVC, embindini ukuxinana isalamane yi 0.7 0.9 umaleko amagwebu ephantsi entsha uhlobo lombhobho, iringi ukuya engqongqo ngamaxesha esi-8 yombhobho UPVC eqhelekileyo, kwaye ubushushu utshintsha xa iinyawo uzinzo elungileyo, ukugquma kakuhle thermal, ingakumbi umaleko ugwebu core unokuba banqumle ukusasazwa ingxolo, Ilungele ngakumbi ukuphakama okuphezulu. ukwakha inkqubo yokuhambisa amanzi.

Xa kuthelekiswa netyhubhu eludongeni oluluqilima, ityhubhu enogwebu engundoqo inokugcina impahla ekrwada engaphezulu kwe-25%, kwaye isakhono sokucinezela eludongeni sangaphakathi siphuculwe kakhulu.Kwaye kudonga lwangaphakathi kunye nenani lemigca ye-convex ejikelezayo kwi-core layer i-foam silking pipe, ukuhamba kwamanzi ecaleni kodonga lwangaphakathi lombhobho ngokukhululekileyo kwaye ngokuqhubekayo kwimilo ejikelezayo, eyenza ikholamu yomoya embindini wombhobho wokukhupha, ngoko ke. ukuba uxinzelelo lombhobho luncitshiswe nge-10%, umthamo jikelele unyuswe ngamaxesha angama-10, ukufuduka kwandiswe ngamaxesha angama-6, ingxolo yi-30-40dB ephantsi kunombhobho oqhelekileyo we-UPVC wokukhupha.

PVC RADIAL UQINISEKIWE umbhobho: Ukuveliswa kwalo mbhobho kwamkela ukungunda okukhethekileyo kunye nokwenza isixhobo sokulandelela, nto leyo luhlobo olunzima-umsebenzi omkhulu-umthamo omkhulu werib rib yeglasi umbhobho wengqolowa.Udonga lwangaphandle LOmbhobho luxhotyiswe ngokuqiniswa kwe-radial, enokuphucula kakhulu ukuqina kunye namandla oxinzelelo lwendandatho yombhobho, ngokukodwa ukulungelelaniswa kwamanzi kubunjineli bakamasipala.

Imibhobho ephindwe kabini yodonga: Imivumbo ephindwe kabini yodonga yenziwa ngokukhupha iityhubhu ezimbini ezigxininisiweyo ngaxeshanye, kwaye emva koko ukuwelda ityhubhu yangaphandle yemvunge kwityhubhu yobhedu enodonga olugudileyo lwangaphakathi.Ngodonga lwangaphakathi olugudileyo kunye nodonga lwangaphandle olugudileyo, ubunzima obulula kunye namandla aphezulu, xa kuthelekiswa nombhobho we-UPVC oqhelekileyo unokugcina i-40-60% yezinto eziluhlaza, ezisetyenziswa kakhulu njengombhobho wokulinda wentambo yonxibelelwano, umbhobho wokukhupha umbhobho kunye nombhobho wokukhupha amanzi wezolimo.

PVC PERMEable umbhobho eyomeleziweyo: yangaphakathi nangaphandle ezimbini umaleko yokubumba iplastiki extrusion kwaye yenziwe ifayibha zokwenziwa isandwich embindini, bhetyebhetye elungileyo, ukugoba.Umbhobho ocacileyo wePVC unokumelana neasidi elungileyo, ukuxhathisa kwealkali, ukuxhathisa kweoli, ukuxhathisa ukwaluphala, unokutshintsha umbhobho werabha, kwaye ixabiso lincinci.Isetyenziselwa kakhulu initrogen, ioksijini, icarbon monoxide kunye nezinye iigesi kunye namanzi, i-alkali ehlanjululwayo, i-oyile kunye nolunye uthutho lwe-liquid, ingasetyenziswa njengesifudumezi samanzi, isitshizi, i-conduit yokupheka igesi.

Umbhobho we-CPVC: Umbhobho we-CPVC luhlobo lombhobho weplastiki onokuxhathisa ubushushu obuhle, ocutshungulwa yi-chlorine polyvinyl chloride equlethe ngaphezu kwe-66% yeklorini.Ukushisa kwe-thermal ye-tube ye-CPVC ingaphezulu kwe-30 ℃ ngaphezulu kwe-tube ye-UPVC, kwaye ukuzinza kwe-dimensional kuphuculwe, kwaye i-coefficient yokwandiswa komgca iyancitshiswa.Ityhubhu ye-CPVC inokumelana nobushushu obugqwesileyo, ukumelana nokwaluphala kunye nokumelana nokubola kweekhemikhali, kwaye ayiguquki emanzini abilayo.Ingasetyenziselwa ukuthuthwa kwamanzi ashushu, ulwelo olungagugiyo kunye neegesi.Yasekhaya Yunnan Dian-huai Science and Technology Development Co., LTD ivelisa CPVC imibhobho.