(Incazelo efingqiwe)PTFE EPDM isihlalo sevalve uvemvane
I-Teflon PTFE yaziwa nangokuthi i-polytetrafluoroethylene.I-Teflon PFA yaziwa nangokuthi i-polytetrafluoroethylene encibilikayo.Ukuthengwa kwama-valve amaningi akucaci kahle ukuthi yikuphi ukumelana nokugqwala okungcono kwamavalvu ovemvane asebenzisa i-PTFE ne-PFA? Yiziphi izinzuzo kanye nokubi ngakunye? Umehluko ekumelaneni nezinga lokushisa, okuyinto eshibhile?
Ihlukile ngemvelo
I-1.PFA: i-copolymer yenani elincane le-perfluoropropyl perfluorovinyl ether kanye ne-polytetrafluoroethylene.2.PTFE: i-polymer compound eyakhiwe nge-polymerization ye-tetrafluoroethylene.
Izici ezahlukene
Izici ze-PFA
(1) I-crystal material, ukumuncwa komswakama ophansi.Ingacutshungulwa ibe yimikhiqizo ngezindlela zokucubungula ze-thermoplastic.
([2) Ukonakala, ukubola okulula kanye negesi ebolayo ikhiqizwa ngesikhathi sokubola. Izinga lokushisa lokubumba alidluli ku-475 ° C, isikhunta sishiselwa ku-150-200 ° C, futhi uhlelo lokuthulula lunokumelana okuncane nokugeleza kwezinto ezibonakalayo.
(Ama-pelles ama-trasucent ama-3, i-ijection molding kanye ne-extrusion molding. Izinga lokushisa lokubumba lingu-350-400C, 475℃ nangaphezulu kulula ukubangelaukuba nombala noma amabhamuza. Naka ubunzima bokubhidliza.
(4) Ngenxa yokugqwala kwento encibilikisiwe ensimbi, ukukhiqizwa-isikhathi eside kudinga ukufakwa kwe-chrome esibunjeni.Izici ze-PTFE
Isici se-PTFE
(1) Ukumelana nezinga lokushisa eliphezulu: izinga lokushisa lokusetshenziswa kwesikhathi eside - 200 ~ 260 ℃;
(2)Ukumelana nezinga lokushisa eliphansi: kuthambile ku--100℃;
(3)Ukumelana nokugqwala: ukumelana ne-aqua regia nazo zonke izinyibilikisi zemvelo;
(4) Ukumelana nesimo sezulu: impilo engcono kakhulu yokuguga yamapulasitiki;
(5)Ukugcotshwa okuphezulu: nge-coefficient encane yokungqubuzana (0.04) phakathi kwamapulasitiki;
(6) Ayinathi - ayinamatheli: Inokuqina kwendawo encane kakhulu phakathi kwezinto eziqinile ngaphandle kokunamathela kunoma iyiphi into.
Umehluko omkhulu kakhulu ukuthi i-PFA kulula ukuyicubungula futhi ibiza kakhulu kune-PTFE, kodwa ngokwenza i-PTFE inokumelana nokugqwala okungcono futhi imelana namazinga okushisa aphezulu.
I-Sansheng Fluorine Plastics Technology ingumkhiqizi futhi umphakeli wamavalvu ovemvane e-China, ekhiqiza i-PTFE ne-PFAlined butterfly valves, uma unemibuzo mayelana namavalve ovemvane noma isicelo sekhotheshini, sicela ukhululeke ukusithinta.+8615067244404
Isikhathi sokuthumela: 2022-11-16 00:00:00