I-PVC SG-5 yepayipi,
I-PVC yokukhiqiza amapayipi, I-PVC SG-5 resin,

I-resin ye-Sg-5 enezinga eliphansi le-polymerization kufanele ikhethwe ekukhiqizeni amashubhu aqinile.Izinga eliphakeme le-polymerization, izakhiwo zomzimba nezomshini kanye nokumelana nokushisa
Uma izakhiwo ziba ngcono, kodwa ukuntuleka kwamanzi kwe-resin kuletha ubunzima obuthile ekucutshungulweni, ngakho-ke i-viscosity ngokuvamile iba (1).7 ~ 1. 8) x 10-3 pa
• I-SG-5 resin ye-S ifanelekile.Ipayipi eliqinile ngokuvamile lisebenzisa isizinzisi somthofu, ukuzinza kwawo okuhle kokushisayo, okuvame ukusetshenziswa umthofu oyisisekelo amathathu, kodwa wona
Ngokuvamile isetshenziswa ngensipho yomthofu kanye ne-barium ene-lubricity enhle.Ukukhethwa nokusetshenziswa kwezinto zokugcoba kubaluleke kakhulu ekucubunguleni amapayipi aqinile.
Kokubili ukugcotshwa kwangaphakathi kanye nokugcotshwa kwangaphandle kufanele kubhekwe njengokunciphisa amandla e-intermolecular, ukuze i-viscosity encibilikisiwe inciphise ukwakheka, futhi kuvimbele ukuncibilika.
Namathela ensimbi eshisayo ukuze unikeze indawo ekhanyayo.Insipho yensimbi imvamisa isetshenziselwa ukuthambisa kwangaphakathi, kanti i-wax enephuzu elincibilikayo isetshenziselwa ukuthambisa kwangaphandle.Umphathi wokugcwalisa
Ukusebenzisa i-calcium carbonate ne-barium (i-barite powder), i-calcium carbonate yenza ukusebenza kwepayipi kube kuhle, i-barium ingathuthukisa ukubunjwa, ukuze ipayipi libe lula ukubumba, amabili
Izindleko zingancishiswa, kodwa okuningi kuzothinta ukusebenza kwepayipi, ipayipi elicindezelayo kanye nepayipi elimelana nokugqwala bekungcono ukuthi lingangezi noma lingeze isigcwalisi esincane.

Ayini amapayipi e-PVC kanye ne-CPVC?

Amapayipi e-PVC

Athuthukiswa ngeminyaka yawo-1930s, amapayipi e-PVC (i-polyvinyl chloride) asephenduke indinganiso yamapayipi kamasipala nawemboni emhlabeni wonke.E-US, izingxenye ezintathu kwezine zazo zonke izindlu zisebenzisa i-PVC.Kusukela ngawo-1950, isiphenduke indawo evamile yamapayipi ensimbi

I-PVC yenziwe kusetshenziswa izinqubo ezintathu ze-polymerization: i-polymerization yokumiswa, i-emulsion polymerization, noma i-polymerization ngobuningi.Iningi le-PVC lenziwa kusetshenziswa i-polymerization yokumiswa.

Kubalulekile ukuqaphela ukuthi amapayipi e-PVC afika ngezindlela ezimbili: aqinile futhi awakhiwe ngepulasitiki.Ifomu eliqinile cishe yilona elifika kuqala engqondweni—cabanga ngamanzi aphuzwayo, amapayipi amanzi, indle, nezolimo.Ifomu elingenapulasitiki liyavumelana nezimo, elihle ukuthi lisetshenziswe ezinhlelweni ezifana neshubhu lezokwelapha kanye nokufakwa kwezintambo zikagesi.

Ezinye izinzuzo zepayipi le-PVC zihlanganisa amandla ayo, ukuqina kwawo okuphezulu, izindleko eziphansi, ukufakwa okulula, nokumelana nokugqwala nokugqwala.

Amapayipi e-CPVC

I-CPVC empeleni iyi-PVC efakwe i-chlorinated.Inqubo ye-chlorination ivumela i-CPVC ukuthi imelane namazinga okushisa aphezulu–afika ku-200°F–futhi ithuthukisa ukumelana kwayo nomlilo nokugqwala.Ngenxa yokumelana nezinga lokushisa eliphezulu, amakhodi amaningi wokwakha adinga amapayipi e-CPVC ukuze asetshenziswe amanzi ashisayo, nakuba angasetshenziswa kuwo womabili amanzi ashisayo nabandayo.Ukwengeza, i-CPVC ifakwe kabanzi ekusetshenzisweni kwezinhlelo zokufafaza umlilo.

Uhlu lwezinzuzo ze-CPVC luyengeza.Kokunye, ukumelana kwayo namakhemikhali nezinga lokushisa kuyenza iqine ngendlela emangalisayo futhi iqinisekise impilo ende.

Ngenxa yekhono layo lokumelana nezinga lokushisa eliphezulu kanye nohlu olubanzi lwezinhlelo zokusebenza zezentengiselwano nezimboni, i-CPVC ifika endaweni yenani eliphezulu kune-PVC.

Uyini umehluko phakathi kwamapayipi e-PVC ne-CPVC?

Umehluko omkhulu phakathi kwe-PVC ne-CPVC amandla azo okumelana nezinga lokushisa.Njengoba kushiwo ngaphambili, ipayipi le-CPVC lingamelana nokufika ku-200°F, kuyilapho ipayipi le-PVC likwazi ukubekezelela kufika ku-140°F.Uma uhamba ngaphezu kwalawo mazinga okushisa, kokubili kuzoqala ukuthamba, okungabangela ukuthi amalunga abe buthakathaka futhi amapayipi ahluleke.Ngenxa yalokho, ama-plumbers amaningi azoncoma ukuthi usebenzise i-CPVC emigqeni yamanzi ashisayo kanye ne-PVC yemigqa yamanzi abandayo.

Nakuba i-PVC inezinzuzo eziningi, i-CPVC inokuguquguquka okukhulu, futhi itholakala kokubili usayizi wepayipi lokuzisholo (NPS) nosayizi wethubhu yethusi (CTS).Ngokuphambene, i-PVC itholakala kuphela ohlelweni lwe-NPS.Womabili amapayipi atholakala ngobude obuyi-10 ft no-20 ft.

Ngokubukeka, amapayipi e-PVC anombala omhlophe noma omnyama ompunga, kanti amapayipi e-CPVC ngokuvamile awamhlophe, ampunga ngokukhanyayo, noma aphuzi.Uma kukhona noma yimuphi umbuzo, bobabili bazoba nemininingwane yabo yobuchwepheshe ephrintiwe eceleni.Njengoba ukwakheka kwamakhemikhali kuhluka phakathi kokubili, ama-solvent Cements nama-bonding agents akufanele asetshenziswe ngokushintshana.

Ikuphi ukufana phakathi kwamapayipi e-PVC kanye ne-CPVC?

Uma kukhulunywa ngokufana kwezobuchwepheshe nokomzimba, kokubili i-PVC ne-CPVC inohlu oluhlaba umxhwele lwezinzuzo.Kokunye, izakhiwo zawo womabili amapayipi ziwavumela ukuba amelane nokugqwala nokuwohloka kwamakhemikhali.Okwesibili, zombili ziphephile ukuthi zingasetshenziswa namanzi aphuzwayo lapho i-ANSI / NSF 61 isiqinisekisiwe.Zombili ziza kuSheduli 40 nogqinsi lweSheduli 80, futhi zitholakala endaweni engenalutho kanye nesiphetho sensimbi.Ukwengeza, i-Schedule 40 PVS iza nokufakwa kwe-Class 125.

Njengebhonasi eyengeziwe enqubweni yabo yokufaka elula, zombili azikwazi ukumelana nomthelela futhi zihlala isikhathi eside, okuvumela ukuphila kweminyaka engamashumi amahlanu kuya kwamashumi ayisikhombisa.Futhi ngokungafani nethusi, intengo yawo womabili amapayipi e-PVC ne-CPVC ayincikile enanini lemakethe.

I-PVC resin ingacutshungulwa ibe yimikhiqizo ehlukahlukene yepulasitiki.Ingahlukaniswa ngemikhiqizo ethambile futhi eqinile ngokusho kwesicelo sayo.Isetshenziswa kakhulu ukukhiqiza amashidi abonisa ngale, okokufakwa kwamapayipi, amakhadi egolide, okokusebenza kokumpontshelwa igazi, amashubhu athambile naqinile, amapuleti, iminyango namafasitela.Amaphrofayili, amafilimu, izinto zokufaka ugesi, amajakhethi ekhebula, ukumpontshelwa igazi, njll.

Isidingo se-PVC siqhutshwa imikhiqizo yezoKwakha, ezoLimo, zokupakisha kanye neZabathengi.Emakethe yasekhaya i-PVC resin isetshenziselwa ukukhiqiza izimpahla eziqediwe eziqinile nezithambile ze-PVC.Cishe u-55% wesabelo semakethe uphethwe ingxenye ye-PVC Pipes & Fittings iyodwa, ezinye izingxenye zihlanganisa Ifilimu & Ishidi, Inhlanganisela Yekhebula, Ipayipi Eliguquguqukayo, Izicathulo, Iphrofayela, Ibhodi Laphansi Negwebu.Emakethe yasekhaya ye-PVC, i-resin isetshenziselwa ikakhulukazi ukwenza amapayipi e-PVC.Cishe ama-55% okusetshenziswa kwe-resin akulo mkhakha wodwa.Eminye imikhakha ihlanganisa isikhumba sokwenziwa, izicathulo, amashidi aqinile nathambile, ipayipi lengadi, amafasitela nezicabha njll. Inani lokuthengiswa kwasekhaya kwe-PVC liye lenyuka kancane kancane ngesilinganiso esingu-5% ngonyaka.