Kapangidwe ka chitoliro cha PTFE ndi: PTFE, thandizo la extrusion → kusakaniza → kukanikiza → kuyanika → sintering → kuzirala → mankhwala
The akamaumba ndondomeko PTFE mipope zikuphatikizapo njira kukankhira, extrusion njira, hayidiroliki njira, kuwotcherera njira, mapiringidzo njira, etc., mwa amene Kankhani njira ndi njira yaikulu.Nthawi zambiri, omwazika PTFE utomoni ndi tinthu kukula 500μm ndi kachulukidwe zikuoneka 0.45gml ~ 0.55gml ntchito.Pa mapaipi ang'onoang'ono ang'onoang'ono, gwiritsani ntchito utomoni wokhala ndi kuponderezedwa kwakukulu, ndipo pamapaipi akulu akulu, gwiritsani ntchito utomoni wokhala ndi kuponderezedwa pang'ono.Thandizo lofinya nthawi zambiri limasankha 200 ndi 260 mineral spirits.The yachiwiri processing waPTFE chubuamatha kupanga PTFE kutentha-shrinkable chubu, PTFE ozungulira chubu, PTFE hayidiroliki machubu, etc.
Polytetrafluoroethylene chubu amapangidwa ndi polytetrafluoroethylene omwazika utomoni firiji ntchito zosungunulira organic monga thandizo extrusion, ndiyeno zouma ndi sintered.Malinga ndi m'mimba mwake chitoliro, akhoza kugawidwa mu mitundu iwiri: chitoliro wamba ndi yaying'ono chitoliro.M'mimba mwake mwa chubu wamba ndi 4mm, ndipo m'mimba mwake wa yaying'ono chubu ndi zosakwana kapena wofanana 4mm.
Kapangidwe ka chitoliro cha PTFE ndi: PTFE, thandizo la extrusion → kusakaniza → kukanikiza → kuyanika → sintering → kuzirala → mankhwala.
Mapaipi a polytetrafluoroethylene ali ndi mphamvu zamakina abwino.Ma gaskets ndi ma gaskets athyathyathya, ma gaskets ooneka ngati V, mphete za pistoni, ma gaskets a valve valve, etc., omwe amapangidwa ndiZithunzi za PTFE, machubu, ndi mbale ndi makina kutembenuka kapena kudula, amene dzimbiri kugonjetsedwa , Kukaniza ndi non-conductivity.
1. Mapaipi a Teflon nthawi zambiri amatengera njira yopangira makatani, ndipo kuumba kwa plunger extrusion kungagwiritsidwenso ntchito.The utomoni akamagwira kubalalitsidwa polymerization njira akhoza kupangidwa ndi phala extrusion ndi calendering.
2. PTFE ili ndi pH mtengo wa 0-14 (kupatulapo zitsulo zosungunuka za alkali ndi fluorine pansi pa kutentha kwakukulu ndi kuthamanga kwambiri), zomwe zingakhale ndi mphamvu zamakina pakati pa 100 ° C ndi 100 ° C.
3. Mikhalidwe yeniyeni ya ndondomekoyi ndikuti kuthamanga kwa preforming kumasiyanasiyana ndi mawonekedwe ndi kukula kwa mankhwala.Koma kawirikawiri amagwiritsidwa ntchito.Kupaka kwa Teflon ndi 8-34.3MPa, ndipo utomoni wokhala ndi filler ndi 29.4-93MPa.Kwa ubweya wawukulu wokhala ndi makulidwe pafupifupi 600mm pokanikizira, pamakhala nthawi yokakamiza ya 20-30min.Dziwani kuti kutentha kumakhala kotsika kuposa 185 ° C.Machubu a Teflon adzakhala osalimba.Pure PTFE gasket ndi chinthu chosindikizira choyera chomwe sichidzayipitsa chilichonse chomwe chimakumana nacho ndipo chimagwiritsidwa ntchito kwambiri muzakudya, mankhwala ndi mafakitale ena.
Nthawi yotumiza: Aug-04-2020