Mhete dzePTFE O-rings zvinhu zvakatenderera zvine chimiro chakaita setoroidal (chakaita sedonati), zvakagadzirwa nePTFE zvine hungwaru kuti zvipe chisimbiso chakavimbika uye chinodzivirira makemikari mumabasa akasiyana-siyana emaindasitiri. Zvichishandisa hunhu hwePTFE hwakasiyana, idzi mhete dzeO-rings ndidzo dzinonyanya kufarirwa kana uchibata nemamiriro ekunze ane makemikari akaomarara, tembiricha yakanyanya, uye mashandisirwo anoda kukweshana kwakaderera uye kuchena kwakanyanya.
Chinhu chikuru chinoita kuti PTFE O-ring ishande zvakanaka ndechekuti zvinhu izvi hazvina kugadzikana nemakemikari. PTFE inodzivirira makemikari zvakanyanya, isingakanganiswi nemakemikari ese, zvinonyungudutsa, maasidhi, uye mabhesi. Izvi zvinoita kuti PTFE O-rings ive chinhu chakakosha mumaindasitiri akadai sekugadzira makemikari, mishonga, uye mafuta negasi, uko kusangana nechinhu chinoparadza kwakajairika. Kugona kwavo kuchengetedza kunaka kwavo mumamiriro ezvinhu akaoma kudaro kunoita kuti chivharo chigare kwenguva refu, chisina kubuda mvura uye kunowedzera kuchengetedzeka nekuvimbika kwemidziyo yakakosha.
Uyezve, PTFE O-rings dzine tembiricha yakakura yekushanda, inowanzo tangira pa -200°C kusvika +260°C (-328°F kusvika +500°F). Kugona uku kwekupisa kwakakura kunoita kuti dzishande zvakanaka mukushandiswa kwe cryogenic ne high-tembiricha, zvichipa kushanda kwakasimba kwekuvhara mumamiriro akasiyana-siyana ekushanda. Kuwanda kwakaderera kwe PTFE kunoderedza njodzi yekunamira kana kutsamwira panguva yekuunganidza nekushanda, ukuwo zvichideredzawo kupfeka paO-ring nenzvimbo dzinobatana, zvichibatsira kuti dzirambe dziripo kwenguva refu uye dzive nyore kugadzirisa.
Ma-O-rings ePTFE anoshandiswa zvakanyanya mukushandiswa kwe-static uye dynamic sealing mumaindasitiri akasiyana-siyana, anosanganisira aerospace, mota, kugadzira chikafu nezvinwiwa, zvishandiso zvekurapa, uye kugadzira semiconductor. Kunyange zvazvo PTFE isina kuvimbika ichipa kugona kwakanaka kwekuvhara zvinhu, maPTFE compounds akagadziriswa kana akazadzwa anowanikwawo. Zvinhu izvi zvinosanganisira zvinowedzera senge magirazi fibers, kabhoni, graphite, kana bronze kuti zviwedzere hunhu hwakadai sekudzivirira kupfeka, kuramba kukwira pasi pemutoro, uye thermal conductivity, zvichigadzirisa mashandiro eO-ring kuti aenderane nezvinodiwa zvakanyanya kana zvakakosha. Kusarudzwa kwedhizaini yakakodzera yePTFE grade neO-ring kwakakosha kuti uve nechokwadi chekuti sealing inoshanda zvakanaka uye inogara kwenguva refu mukushandiswa kwaunoda.
