Zithunzi za PTFEndi ma gaskets athyathyathya, ma gaskets ooneka ngati V, mphete za pistoni, ma valve a mpira, ndi zina zotero, zopangidwa ndi ndodo za Teflon, machubu ndi mbale potembenuza makina kapena kudula.M'makina amadzimadzi (monga mapampu, ma compressor, ma ketulo osakaniza, ma centrifuges, etc.), zovuta kwambiri zogwirira ntchito zimatengedwa ngati ma teflon gaskets.Lili ndi makhalidwe abwino monga corrosion resistance, anti-aging and non-conductive.PTFE pH 0-14 (kupatulapo zitsulo zosungunuka za alkali ndi fluorine pa kutentha kwakukulu ndi kuthamanga).Ikhoza kukhala ndi mphamvu yabwino yamakina pakati pa -100 ℃ ndi 100 ℃.
Makhalidwe a tetrafluoro gasket
Kuvuta
M'makina amadzimadzi (monga mapampu, ma compressor, ma ketulo osakaniza, ma centrifuges, etc.), zovuta kwambiri zogwirira ntchito zimatengedwa kuti ndi za PTFE gaskets.
(1) Monga ma thrust bearings, omwe amalandira mphamvu za axial.
(2) Kutumiza kunja kutentha komwe kunapangidwa ngati chotengera cha kutentha.
(3) Pakutentha kwambiri komanso kuthamanga kwambiri kwa dzimbiri, chisindikizo chokhazikika tsopano ndi chovuta kwambiri, komanso kusinthasintha kothamanga kwambiri, mu mamilimita angapo a malo osindikizira kuti amalize chisindikizo champhamvu ndizovuta kwambiri.
Malo ogwirira ntchito
(1) palibe njira yothandizira, mutha kungosintha mawonekedwe a chisindikizo, kupita patsogolo pazopangira.(Kukwera mtengo, sikungathetse vuto pamizu)
(2) Pochita, palibe pafupifupi ma gaskets a teflon opanda zida zothandizira.Monga mkulu kuthamanga ntchito tandem tetrafluoro gaskets, kutentha tetrafluoro gaskets ayenera kusankha lolingana wothandiza zida.
(3) (Pambuyo pa dongosolo lothandizira) zinthu zovuta zimakhala zovomerezeka zosindikizira.(Udindo wa ma gaskets a PTFE ndiwotsogola kwambiri, kuchuluka kwa ntchito ndikokulirapo, kufunikira kwa zida zosindikizirako kumachepetsedwa, ndipo mtengo wamafuta a PTFE wachepetsedwa)
Gulu laZithunzi za PTFE
Teflon gaskets ali makamaka likupezeka koyera Teflon gaskets, Teflon masangweji gaskets, kusinthidwa wodzazidwa Teflon gaskets, etc. The makina mphamvu koyera Teflon gaskets ndi khola kwambiri ngakhale mu osiyanasiyana opanda madigiri 100 Celsius mpaka 100 digiri Celsius.Komabe, kutentha kukakhala kotsika kwambiri, gasket yoyera ya teflon imakhala yolimba, kotero malo ogwirira ntchito sayenera kutsika kuposa madigiri 185 Celsius.
Teflon sangweji gasket osati zabwino dzimbiri kukana, komanso ali bwino compressive resilience kuposa gaskets ena, kotero angagwiritsidwe ntchito amphamvu asidi kapena alkali chilengedwe, ndi kuipitsidwa mlingo wake ndi otsika kwambiri.
Ma graphite odzazaMtengo wa PTFEndi wakuda PTFE gasket ndi zabwino makamaka kusindikiza ndi psinjika, ndipo ali ndi torque posungira.Kukhazikika kwa chisindikizo kumakulitsidwanso kuchokera ku chisindikizo chachikhalidwe.Kugwiritsa ntchito ma teflon gaskets odzaza ndi graphite ndikokondera zachilengedwe komanso kupulumutsa ndalama pamlingo wina chifukwa cha kuchuluka kwa zodzaza zomwe zawonjezeredwa pazinthu zomwe zimagwiritsidwa ntchito.
Palinso chowonjezera cha teflon gasket chopangidwa ndi PTFE resin sintered palimodzi, chomwe chili ndi katundu wapadera kuti palibe mavuto okhudzana ndi kukwapula ndi kuzizira, komanso kutsekedwa ndi kukana kuli bwino kuposa ma gaskets ena.
Nthawi yotumiza: Mar-23-2022