Kodi pepala la PTFE lingagwiritsidwe ntchito pa kutentha kotani?

Tetrafluoroethylene mbale amadziwika kuti mfumu ya mapulasitiki m'munda wa mapulasitiki, ndi ntchito zake n'zosatheka ndi mapulasitiki wamba, choncho nthawi zambiri ntchito m'madera nkhanza, monga asidi ndi zamchere, zowononga TV ndi kutentha kwambiri.Ndiye, ubwino wa PTFE board ndi chiyani?

Choyamba, chimakhala ndi kutentha kwakukulu.Ponena za kugwiritsidwa ntchito kwa pepala la tetrafluoroethylene zipangizo zamakono, zopangira zimatha kufika 232 ° C, ndipo ngakhale kutentha kwakukulu pambuyo pobwerera ku khola kumatha kufika pafupifupi 150 ° C, ndipo kutentha kwa ntchito kumakhala kwakukulu kwambiri.

Tsamba la PTFE lili ndi zida zabwino kwambiri za dielectric, mphamvu za dielectric zodziwika bwino komanso kukana kwa arc, kutsika kwa dielectric kutaya tangent, komanso kusalimba kwa corona.Pepala la tetrafluoroethylene lili ndi mayamwidwe abwino osagwiritsa ntchito madzi, opanda mpweya, UV komanso kukana nyengo.Mphamvu yakunja yakunja idakhalabe yosasinthika kwa zaka zitatu zotsatizana, kutalika kokhako kudachepa.Mafilimu a Teflon ndi zokutira amatha kulowa m'madzi ndi gasi chifukwa cha porosity yawo yabwino.PTFE imatha kukhala yoyenera kutentha kwapakati pa madigiri 190 mpaka 250.Kutha kutentha kapena kuzizira mwadzidzidzi, kapena kusinthana kutentha ndi kuzizira popanda vuto lililonse.Kuphatikiza pa kuthetsa mavuto opangira mankhwala ndi mafuta, mapepala a tetrafluoroethylene amathanso kutenga nawo mbali pazamankhwala ndi madera ena.Pali zida zambiri zosindikizira pamsika masiku ano, komanso zinthu za gasket kapena gasket.Kuphatikiza apo, PTFE imagwiritsidwanso ntchito kwambiri pazinthu zomwe zili ndi zofunika kusindikiza, ndipo imagwiritsidwanso ntchito ngati Jinxining filler.Udindo wa pepala PTFE ndi waukulu kwambiri, chifukwa pepala PTFE ali ndi udindo waukulu, zosiyanasiyana mankhwala, ndipo amatenga mbali yaikulu m'madera osiyanasiyana ndi madera chikoka.PTFE imatha kuwoneka kulikonse m'moyo wathu.

Kachiwiri, ziribe kanthu kuti ndi mtundu wanji wa mankhwala, ziribe kanthu momwe zingawonongere, PTFE ingagwiritsidwe ntchito.Titha kunena kuti ngati pepala la PTFE silingakwaniritse zofunikira zokana dzimbiri, palibe zida zina zapulasitiki zomwe zingagwiritsidwe ntchito.Kuphatikiza pa kukana kwambiri kwa mankhwala, makina ake amawongoleredwa ndi apamwamba kwambiri, omwe amawapangitsa kukhala oyenera kugwiritsidwa ntchito pazochitika ndi kugwedezeka kwakukulu ndi kupindika.

PTFE pepala chimagwiritsidwa ntchito mapulasitiki zomangamanga monga mkulu kutentha 260 ℃, kutentha otsika -196 ℃, asidi ndi zamchere dzimbiri kukana, kukana nyengo ndi sanali kawopsedwe.PTFE imatha kuwoneka m'mafakitale amafuta, mankhwala, zamankhwala, zamagetsi komanso chakudya.Kaya mbale ya PTFE ndi yapoizoni ndipo imakhala yabwino kukana, ndi chinthu chabwino chosindikizira.PTFE (Polytetrafluoroethylene, chidule cha PTFE), chomwe chimatchedwa "zopaka zopanda ndodo" kapena "zosavuta kuyeretsa".Nkhaniyi ali ndi makhalidwe a asidi ndi alkali kukana ndi kukana zosungunulira zosiyanasiyana organic, ndipo pafupifupi insoluble mu zosungunulira zonse.Pa nthawi yomweyo, PTFE mbale ali makhalidwe a mkulu kutentha kukana ndi otsika kwambiri mikangano coefficient.Kuwonjezera mafuta, ndi kupanga ndondomeko PTFE mbale ❖ kuyanika wakhalanso bwino ❖ kuyanika kwa mosavuta kuyeretsa mkati wosanjikiza wa mipope madzi.