(Inkcazo yesishwankathelo)PTFE EPDM isitulo sevalve yebhabhathane
I-Teflon PTFE ikwabizwa ngokuba yi-polytetrafluoroethylene.I-Teflon PFA ikwabizwa ngokuba yi-polytetrafluoroethylene enyibilikayo.Iivalvu ezininzi ezithengiweyo azicacanga ncam ukuba yeyiphi eyona ndlela ingcono yokuxhathisa umhlwa kwiivalvu zebhabhathane ezisebenzisa i-PTFE kunye ne-PFA? Zeziphi iingenelo kunye nokungalungi kwayo nganye? Umahluko ekuxhathiseni ubushushu, exabiso eliphantsi?
Yahlukile ngendalo
I-1.PFA: i-copolymer encinci ye-perfluoropropyl perfluorovinyl ether kunye ne-polytetrafluoroethylene.2.PTFE: i-polymer compound eyenziwe yi-polymerization ye-tetrafluoroethylene.
Iimpawu ezahlukeneyo
Iimpawu zePFA
(1) Izinto zeCrystal, ukufunxa ukufuma okuphantsi.Inokucutshungulwa kwiimveliso ngeendlela zokulungisa i-thermoplastic.
. Iqondo lobushushu elixhumayo alidluli ngaphezu kwe-775 ° C, iMolds ifudunyelelwa ukuba i-150 - i-200 ° C, kwaye inkqubo yokugada ingenantlonelo encinci yokuhamba kwezinto.
(Iipelles ezi-3 ze-trasucent, i-ijection molding kunye ne-extrusion molding. Ubushushu bokubumba yi-350-400C, 475℃ nangaphezulu kulula ukubangelaukwenziwa kombala okanye ukugqabhuka.
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Iimpawu zePTFE
(1) Ukumelana nobushushu obuphezulu: ixesha elide - ubushushu bokusebenzisa ixesha elide 200 ~ 260 ℃;
(2)Ukumelana nobushushu obuphantsi: ithambile kwi -100℃;
(3) Ukumelana nokubola: ukumelana ne-aqua regia kunye nazo zonke izinyibilikisi eziphilayo;
(4) Ukuxhathisa imozulu: obona bomi bugugayo beeplastiki;
(5)Ukuthambisa okuphezulu: kunye neyona coefficient incinci yokukhuhlana (0.04) phakathi kweeplastiki;
(6) Ayinanga-incangathi: Inowona xinzelelo luncinane lomphezulu phakathi kwemathiriyeli eqinileyo ngaphandle kokubambelela kuyo nayiphi na into. Isishwankathelo
Owona mahluko mkhulu kukuba i-PFA ilula ukusetyenzwa kwaye ibiza kakhulu kune-PTFE, kodwa ekusebenzeni i-PTFE inokumelana ne-corrosion engcono kwaye iyaxhathisa kumaqondo obushushu aphezulu.
Itekhnoloji ye-Sakesheng Fluorine yiTekhnoloji yoMveliso nguMveliso kunye noMbolekisi webhabhathane eTshayina, ukuvelisa i-valves yebhabhathane ye-PtFE, nceda ukhululeke ukunxibelelana nathi. + 861504
IXESHA LOKUQALA: 2022 - 11 - 16 00:00:00