Sezvo huwandu hwemaindasitiri hwakange hwave kudiwa zvakanyanya nekupisa kwepamusoro, nharaunda dzinokonzeresa, kudzvanyirira kwakanyanya, nezvimwe… iyo yakajairwa elastomeric chisimbiso yakanga isisakwanise kupa tarisiro yehupenyu inodiwa kuti makambani arambe achikwikwidza.Polytetrafluoroethylene (PTFE) inopa mukana wekumhanya pakakwirira RPMs, yakakwirira uye yakadzika tembiricha, uye yakanyanya kudzvinyirira kupfuura elastomeric chisimbiso.
Izvi zvinokonzerwa nekuti PTFE iinert material, yakagadziridzwa kuti ishingirire kupisa kwakanyanya, ine yakaderera coefficient of friction, uye kana yasanganiswa neakasarudzwa mafirita, PTFE inopa yakasarudzika mapfekero uye mamwe ma mechanic properties ayo elastomer seals asingakwanisi.
PTFE inoshingirira mumakemikari kupfuura PEEK.INONYANYA yakapfava uye nekudaro inotora simba shoma rekusunga kuti iwane chisimbiso, asi zvakare inokambaira patembiricha yakaderera kupfuura zvinoita PEEK.Iyo zvakare inotsvedza- kuva neiyo yakaderera coefficient yekukwesha zvinoreva kuti zvikamu zvinogona kutsvedza kupfuura imwe neimwe zviri nyore, zvichikonzera yakaderera torque mukutenderera kwechisimbiso maapplication nezvimwe.
PEEK yakaoma kwazvo, yakakora, yakaoma polymer.Inodhura.Inoshingirirawo kune tembiricha yakanyanya.Iwe unoishandisa kazhinji chete uko PTFE kana yakasimbiswa TFE isingabatike kupisa.
Moltenmetal ndeyechokwadi, kana PEEK kana (yakasimba) PTFE ari elastomers, iwo thermoplastic polymers.
PEEK ine yakanakisa mechanical simba, yakakwirira tembiricha kugona, makemikari kuenderana, uye kupfeka kuramba.PTFE ine yakanakisa yakaderera/yepamusoro tembiricha kugona, yakaderera friction zvivakwa, uye ine makemikari inert.Zvinhu zvose zviri zviviri zvinogona kugadzirwa nemichina kana kuumba.PEEK inowanzo dhura kupfuura PTFE pa$/lb raw material cost base, asi maapplication akawanda ekuvharisa anozoda mwero wezvinhu kana molding ikashandiswa kugadzira chisimbiso.Kune yepamusoro-inoshanda chisimbiso maapplication iwo mbishi mutengo musiyano haifanire kuve yakanyanya kunetseka.Asi kune yakakwira-vhoriyamu, yakaderera-mutengo wechigadzirwa application ndaigona kuona paingava nyaya.
Kushandisa chisimbiso chine simba, uko kudzvanyirirwa kusina kunyanya kukwirira, PTFE inogona kunge iri sarudzo yakanaka sezvo iine kukwesha kwakanyanya uye kuenderana.Chimwe chinhu chakanyanya kunaka nezve PTFE chisimbiso chinomhanyisa pamusoro pesimbi ndechekuti nekufamba kwenguva dhizaini rePTFE rinotamirwa kune simbi pamusoro, izvo zvinoita kuti PTFE-on-PTFE ibatane nekuderera kwakanyanya uye kudonha.Iyo imwe mipimo mikuru yekushandisa isina kuzadzwa PTFE yekumanikidza chisimbiso ndeyekuti ine hunhu hwekutonhora-kuyerera kana uchinge uchinge uchinge uchinge uchinge uchidzvanywa kwenguva refu.
ETFE is rigid thermoplastic.FEP fluorinated ethylene propylene) zvakare yakasimba thermoplastic, kunyangwe yakapfava kupfuura PFA kana PTFE- haisi elastomer.Polytetrafluoroethylene-co-propylene (Aflas) is elastomer, seyakajairika fluoroelastomer (tradename Viton- (FKM)) uye perfluoroelastomers senge tradename Kalrez (FFKM).Zvese zvinogona kushandiswa mukuisa chisimbiso maapplication (kurongedza a, gaskets, zvigaro zvevharuvhu) asi chete elastomers inogona kushandiswa mukuzvisimbisa pachezvako sezvindori.O zvindori zvinogona kuvharirwa nezvinhu zvenonelastomeric asi zvinogona uye zvinokanganisa kugona kwavo kuvhara gasi.
Nguva yekutumira: Feb-27-2017