Teflon inowanzo zivikanwa se polytetrafluoroethylene (chirungu chipfupiso che teflon kana [PTFE, F4]), inozivikanwa se/inowanzozivikanwa se "mambo wepurasitiki", uye inozivikanwawo se "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon" uye "Teflon". Mushonga wepolymer wakagadzirwa ne tetrafluoroethylene ne polymerization, uye chimiro chayo chiri nyore se- [-cf2-cf2 -]n-.

Polytetrafluoroethylene, inowanzozivikanwa seisina-tsvimbo coating kana nyore kuchenesa zvinhu. Ichi chinyorwa chine hunhu hweasidhi uye alkali kuramba, kuramba kune akasiyana organic zvinonyungudutsa, uye zvinenge zvisinganyunguriki mune zvese zvinonyungudutsa. Panguva imwecheteyo, polytetrafluoroethylene ine maitiro ekudzivirira kwekushisa kwepamusoro, iyo coefficient of friction yakaderera zvikuru, saka inogona kushandiswa pakuzora, asi zvakare inove yakashongedzwa yakanakira kuchenesa mukati memvura pombi.

Teflon plating inonyanya kuenderana nerudzi rwemaitiro aunoda kuona kuti ungapfapfaidza sei. Chinhu chinonyanya kukosha ndechekuti Teflon coating inoda kubikwa pakupisa kwepamusoro isati yashandiswa.

Maitiro eTeflon:

Isina-adhesive: Zvinenge zvese zvinhu hazvibatanidzi neiyo teflon coating.

Kudzivirirwa kwekushisa kwakadzika: kunaka kwemagetsi kuoma; Kunyange kana tembiricha inodonha kusvika -196 ° C, 5% elongation inogona kuchengetedzwa. Ichiri kunyorova pa -100 degrees.

High tembiricha kuramba: polytetrafluoroethylene coating ine yakanakisa kupisa uye yakaderera tembiricha kuramba. Inogona kumira tembiricha yakakwira kusvika 300 ° C kwenguva pfupi, kazhinji inogona kushandiswa nguva dzose pakati pe240 ° C uye 260 ° C, uye ine yakakosha kugadzikana kwekupisa, inogona kushanda pachando inotonhora isina kunyungudika, uye hainyunguduke pakupisa kwakanyanya. .

High lubrication: Ndiyo yakaderera friction coefficient mune yakasimba zvinhu. Iyo ine yakaderera coefficient ye friction (0.04) pakati pemapurasitiki. Yakapfava kupfuura aizi.

Kupokana kwemvura: pamusoro pePTFE coating haina kusvibiswa nemvura nemafuta, uye hazvisi nyore kunamatira kune mhinduro panguva yekushanda kwekugadzira. Kana pane tsvina shoma, inogona kubviswa nekungopukuta. Short downtime inochengetedza nguva uye inovandudza kushanda zvakanaka.

Pfeka kuramba: Iyo ine yakanakisa kupfeka kuramba pasi pemutoro wakakwira. Pasi pemumwe mutoro, ine zvakanakira zviviri zvekupfeka kuramba uye kusanamatira.

Corrosion resistance: polytetrafluoroethylene inenge isina kurwiswa nezvinodhaka, uye inogona kushingirira maasidhi akasimba (kusanganisira aqua aqua), maoxidants akasimba, zvinoderedza zvinonyungudutsa uye zvakasiyana-siyana zvinonyungudutsa organic kuwedzera kune zvakanyungudutswa alkali simbi, fluorinated media uye sodium hydroxide pamusoro pe300 ° C, uye inogona kudzivirira zvikamu kubva kune chero rudzi rwemakemikari corrosion.

Kuramba kuchembera: kurwisa kwemwaranzi uye kuderera kwepasi: kuratidzwa kwenguva refu kumhepo, kumusoro uye kuita zvinoramba zvisingachinji.

Incombustible: oxygen limit index iri pazasi 90.

Asidhi uye alkali kuramba: isinganyunguriki muasidhi yakasimba, mabhesi akasimba uye organic solvents (kusanganisira magic acid, kureva, fluoroantimonic acid).

Oxidation resistance: inoshingirira mukuora nemaokisijeni akasimba.

Insulation: Yakanakisa kuita kwemagetsi, yakanakira C-kirasi insulation zvinhu, mutsetse wepepanhau gobvu unogona kuvharira 1500V kudzvanywa kwepamusoro. Kuvhara kwayo kwemagetsi hakukanganisi nekushisa. Iyo dielectric inogara uye dielectric kurasikirwa yakaderera muhupamhi frequency renji, uye iyo yekuputsika voltage, vhoriyamu resistivity uye arc kuramba zvakakwirira.

Acid-base: kusarerekera.