I-PVC yoFakelo lwePipe
I-PVC (i-polyvinyl chloride) yi-vinyl polymer.Ngaphantsi kwemeko efanelekileyo, incinci inqanda iklorini ekuphenduleni nge-hydrogen.Ikwenza oko ukwenza i-hydrochloric acid (HCl).Le khompawundi ineasidi kwaye inokubangela umhlwa.Ngoko nangona iipropati zayo ezininzi ezinqwenelekayo, i-PVC iyadleka.Oku kubangela imingeni ethile ekuqhubeni nasekusetyenzisweni kwayo.I-PVC inamandla okumelana namanzi kunye nolwelo oluninzi lwemihla ngemihla.I-soluble kwi-tetrahydrofuran, i-cyclohexane, kunye ne-cyclopentanone.Ke xa usebenzisa izixhobo zePVC qwalasela uhlobo lolwelo oluhla kumjelo.
Ukuhlangabezana neemfuno ezahlukeneyo, iipayipi kufuneka zigobe ngeendlela ezahlukeneyo kunye nee-engile.Oku kunokuba kukuphambukisa konke ukuhamba okanye inxalenye yokuhamba.Izifakelo zemibhobho ziqhelana nokudibanisa imibhobho kwii-engile ezahlukeneyo.Bangakwazi ukudibanisa i-2 ukuya kwi-4 imibhobho kunye.Umbhobho kunye nezixhobo zabo zisetyenziswa ngeendlela ezininzi.Imizekelo yelindle, unikezelo lwamanzi, nokunkcenkceshela.Ukuqaliswa kwemibhobho ye-PVC yayiyinguqu ebalulekileyo kwikhaya nakwishishini.Namhlanje amakhaya amaninzi kunye namashishini atshintsha ukusuka kwimibhobho yentsimbi ukuya kwimibhobho yePVC.Imibhobho yePVC ihlala ixesha elide.Azinamhlwa kwaye ziyakwazi ukumelana noxinzelelo lokuhamba.Enkosi kwiinkqubo ezinkulu zemveliso ezifana nokubumba inaliti, zitshiphu.Apha ngezantsi kukho imizekelo yofakelo lombhobho owenziwe inaliti.
Iifatisi zemibhobho yePVC zixonxwa njani
Ufakelo lwePVC lwenziwa ngokubumba inaliti yoxinzelelo oluphezulu.Inkqubo yokubumba inaliti iqala ngePVC ngendlela yeegranules okanye iipellet.Ngokwahlukileyo kwi-extrusion eqhubekayo, ukubumba yinkqubo ye-cyclic ephindaphindiweyo, apho "i-shot" yezinto eziphathekayo ihanjiswa kwi-mold kumjikelezo ngamnye.
Imathiriyeli yePVC, ifom ekhompawundi yegranular, ngumxhuzulane owondliwa kwihopha ebekwe ngaphezulu kweyunithi yokutofa, ukuya kumphanda wendlu yesikrufu esibuyiselanayo.Umgqomo uhlawuliswa inani elifunekayo leplastiki nge-screw ejikelezayo kunye nokuhambisa izinto phambi kombhobho.Isikhundla se-screw simiselwe "ubungakanani bokudubula" kwangaphambili.Ngethuba lesi senzo, uxinzelelo kunye nokushisa "iplastiki" izinto eziphathekayo, ngoku kwimeko yayo enyibilikayo, ilindele ukujova kwi-mold.
Konke oku kwenzeka ngexesha lomjikelo wokupholisa wokudubula kwangaphambili.Emva kwexesha elimisiweyo i-mold iya kuvula kwaye ukufakwa okubunjiweyo okugqityiweyo kuya kukhutshelwa ngaphandle.
Ukungunda emva koko kuvalwe kwaye iplastiki enyibilikisiweyo ephambi komphanda itofwe phantsi koxinzelelo oluphezulu ngesikrufu esisebenza njengeplunger.Iplastiki ingena kumngundo ukuze yenze ukufakwa okulandelayo.
Emva kwesitofu, ukutshaja kwakhona kuyaqala ngelixa ukufakela okubunjiweyo kuhamba kumjikelo wokupholisa.
Malunga PVC naliti Ukubumba
Ukunikezelwa kweempawu zePVC izinto ezithile zibalulekile ekubumbeni kwazo inaliti.Ukubumba inaliti yePVC kufuna ukuba ibe sesichengeni sobushushu obuphezulu.Ukunikezelwa kweekhemikhali kunye neempawu ezibonakalayo zePVC, oku kunokubeka uxinzelelo oluthile kwinkqubo.Oku kulandelayo yingqwalasela ethile kwisitofu sokubumba izifakelo zemibhobho yePVC.
Izinto zokungunda
Eyona ndlela ilungileyo yokwenza i-mold ye-PVC yi-anti-corrosion stainless steel.Oku kufuneka kube yintsimbi ecolisiweyo eqinileyo.Kukho amandla aphezulu okukhutshwa kweHCl ngexesha lokuveliswa kwezixhobo zombhobho wePVC.Oku kunjalo ngakumbi ngePVC ekwimeko etyhidiweyo.Nayiphi na iklorini ekwimo yegesi inokwenzeka ukuba ijiye xa ibetha ukungunda.Oku kuveza ukungunda kumhlwa.Nangona kuya kwenzeka, ukusebenzisa isinyithi esikumgangatho ophezulu kunciphisa amathuba.Oku kwandisa ubomi obuluncedo bomngundo.Ke musa ukubiza ngexabiso eliphantsi xa kuziwa ekukhetheni izinto zokubumba.Ukubumba inaliti yombhobho wePVC, hamba ngeyona ntsimbi ilungileyo onokuyifumana.
Uyilo lokungunda lofakelo lombhobho wePVC
Ukuyila ukungunda kwiimilo eziqinileyo ezintsonkothileyo kunzima.Ukuyila umngundo wofakelo lwemibhobho yePVC kuthatha ubunzima ukuya phezulu.Umgodi wokungunda awuyondlela elula yokusikwa kwimo eqinileyo kunye namasango.Umngundo yindibano entsonkothileyo.Ifuna ingcali kuyilo lokungunda kunye nokuveliswa kokungunda.Ukujonga ubume bombhobho wokudibanisa.Thatha umzekelo wokufakela umbhobho wengqiniba.Indibano yokubumba ifumana ukuyilwa ngendlela evumela ukuzaliswa komzimba wombhobho.Kodwa oku kwenzeka ngaphandle kokugcwalisa ummandla ongenanto.Oku kwenziwa ngoqwalaselo lokukhutshwa kwemveliso kunye nokukhululwa.Uyilo oluqhelekileyo lufuna ukungunda okunamacandelo amaninzi.Oku kunokuba ne-4 inxalenye yokubumba.Oku akufani nezakhiwo ezilula eziqinileyo ezinokuthi zenziwe ngeenxalenye ezimbini zokubumba.Ke ngenxa yokufakelwa kombhobho wePVC kufuna iinjineli zokungunda ezinamava ngolu hlobo lokungunda.Ngezantsi ngumzekelo we-PVC yokufaka umbhobho wokubumba.
Ixesha lokuposa: May-25-2023
