ZaPTFE o-mphetendi mbiri ya PTFE yodzaza masika motere:
M'mapulogalamu osunthika omwe amafunikira kusindikiza pa liwiro lotsika mpaka pang'onopang'ono komanso kukakamiza, mainjiniya opanga m'malo mwa elastomeric yosachita bwino.O-mpheteyokhala ndi zisindikizo za PTFE "C-ring" zodzaza masika.
Pamene O-ringing ndi njira zina zachikhalidwe zosindikizira sizikugwira ntchito, akatswiri opanga zida zowunikira komanso zoperekera mankhwala akutenga njira yatsopano, yotsika mtengo yolimbikitsira magwiridwe antchito a zida zawo zomwe zilipo kale: PTFE "C-Ring" zosindikizira masika.
Zisindikizo za C zidapangidwira zida zodziwira matenda pogwiritsa ntchito pisitoni yobwereranso pa 5 mapazi pamphindi ikugwira ntchito posamba m'madzi pafupifupi 100 ° F.Zinthu zogwirira ntchito ndizochepa, koma zololera zazikulu.Mapangidwe apachiyambi ankafuna kuti elastomeric o-ring isindikize pisitoni, koma o-ringyo sakanatha kukhala ndi chidindo chokhazikika, zomwe zimapangitsa kuti chipangizocho chidutse.
Pambuyo popanga chithunzicho, mainjiniya adayamba kufunafuna njira zina.Mphete za U-kapena zosindikizira za milomo, zomwe zimagwiritsidwa ntchito kwambiri mu pistoni, sizoyenera chifukwa cha kulolerana kwakukulu kwa radial.Ndikosathekanso kuziyika pazigawo zonse.Kuyika kumafuna kutambasula kwambiri, zomwe zimatsogolera ku deformation ndi kulephera msanga kwa chisindikizo.
Mu 2006, NINGBO BODI SEALS .,LTD inabwera ndi njira yoyesera: kasupe wa helical wa canted wokutidwa mu PTFE C-ring.Kusindikiza kumagwira ntchito ndendende momwe timayembekezera.Kuphatikiza kutsika kwamphamvu kwa PTFE ndi geometry yosinthira ya boot, "C-Rings" imapereka chisindikizo chodalirika, chokhazikika komanso chosavuta komanso chodekha kuposa O-Rings.Kuonjezera apo, mphete za C ndi zoyenera kwa o-mphete zodzaza, zomwe nthawi zambiri sizimalangizidwa kuti zikhale ndi zipangizo zosakanikirana.Chifukwa chake, C-ring imatha kukhazikitsidwa popanda kusintha zida zoyambira kapena kugwiritsa ntchito zida zapadera.
Chisindikizo choyambirira cha C chinali ndi zaka ziwiri.Kugwiritsa ntchito mphete za C kumapangitsa kuti zinthu ziziyenda bwino komanso zimakulitsa moyo wa zida pochepetsa nthawi yochepetsera komanso kukonza.
Zida zojambulira zachipatala, mapampu a insulin, zowongolera mpweya, ndi zida zoperekera mankhwala nthawi zambiri zimagwiritsa ntchito mphete za O kusindikiza mipata yayifupi ya axial.Koma pamene mphamvu zowonongeka kwambiri zikafunika, mphete za O sizingathe kulipira izi, zomwe nthawi zambiri zimayambitsa kuvala, kupunduka kosatha, ndi kutayikira.Ngakhale kuti pali zolakwika izi, akatswiri akupitiriza kugwiritsa ntchito mphete za o chifukwa njira zina (monga makapu a U-makapu, zosindikizira za milomo) sizingagwirizane ndi zofunikira zowonongeka ndipo nthawi zambiri zimafuna malo a axial kuposa o-ringing.
Mphete ya C ndi yosiyana chifukwa imatha kulowa m'malo ang'onoang'ono axial omwe amaperekedwa kwa O-ring, pomwe zisindikizo zokhazikika sizingathe.Kuphatikiza apo, C-mphete imatha kusinthidwa kuti igwirizane ndi zosowa za pulogalamuyo.Itha kukhazikitsidwa ndi milomo yowonda kwambiri komanso yosinthika kuti ikhale yogwiritsa ntchito cryogenic kapena milomo yokhuthala kuti igwiritse ntchito mwamphamvu pomwe chisindikizo chimafuna kukana kuvala kwambiri.
Chifukwa mphete za C zimalola kusuntha komanso kubwereza, ndi njira yosinthira pazinthu zosiyanasiyana zomwe zimafunikira kusindikiza kotsika mpaka kwapakatikati, kuphatikiza ma robotiki azachipatala, zida zam'manja zachipatala, ndi zolumikizira za probe/tubing.Ma C-rings amalola kulolerana kwakukulu kwa radial - kuwirikiza kasanu kuposa zisindikizo zofananira pamtanda womwewo.Kulekerera kosiyanasiyana kumadalira kupanikizika kozungulira, mtundu wa sing'anga ndi mankhwala apamwamba.C-mphete imagwiranso ntchito bwino muzogwiritsira ntchito static pomwe zigawo ziyenera kutetezedwa ku zowonongeka zachilengedwe.
Pochotsa zinthu za PTFE kuchokera pamapangidwe oyambirira a boot a C-ring, akatswiri adatha kuwonjezera kusinthasintha kwake ndi kusinthasintha.Zotsatira zake, mphete za C zatsimikizira kuti zimakhala zotambasuka komanso zosinthika kusiyana ndi zomwe zinkayembekezeredwa poyamba, zomwe zimawapangitsa kukhala oyenera ntchito zosazungulira.Mphete za C zakhala zikugwiritsidwa ntchito papampu zoperekera mankhwala okhala ndi ma pistoni ozungulira.Chifukwa milomo yosindikizira imatha kupangidwa kuchokera kwa namwali PTFE kapena kudzazidwa PTFE, C-ring ndi chisindikizo chosinthika kwambiri chomwe chimagwirizana ndi zitsulo ndi pulasitiki.
Mphete za C, zomwe zidapangidwa kuti zizigwiritsidwa ntchito ndi zida zowunikira madzi, zimakhala ndi akasupe a helical a PTFE.Koma ma C-mphete amathanso kupangidwa pogwiritsa ntchito akasupe a helical band ngati oyambitsa.Posintha akasupe a helical okhala ndi akasupe a helical band, C-mphete imatha kupereka kuthamanga kwapamwamba kwambiri kosindikiza, koyenera kugwiritsa ntchito cryogenic kapena static.
Bal Seal Engineering imatcha C-ring yake "chisindikizo chabwino kwambiri cha dziko lopanda ungwiro" chifukwa cha kuthekera kwake kopereka moyo wotalikirapo wautumiki m'malo omwe mipata, kumaliza kwapamtunda ndi mawonekedwe ena amasiyanasiyana.Ngakhale kulibe chisindikizo changwiro, kusinthasintha ndi kusinthika kwa mphete za C zimawapangitsa kukhala njira yosangalatsa komanso yothandiza pazida zina zamankhwala ndi zowunikira.Ichi ndi chosindikizira chopepuka chomwe chili choyenera kwa kuthamanga kwapansi (<500 psi) ndi liwiro lotsika (<100 ft/min) pomwe pamafunika kukangana kochepa.Kwa madera awa, C-rings atha kupereka njira yabwino yosindikizira kuposa ma O-rings a elastomeric kapena mitundu ina yosindikizira, yopatsa opanga mphamvu zowonjezera moyo wautumiki ndikuchepetsa phokoso popanda kusinthidwa kwamtengo wapatali.
David Wang ndi Global Marketing Manager wa Medical Devices ku Bal Seal Engineering.Katswiri yemwe ali ndi zaka zopitilira 10 zopanga, amagwira ntchito ndi ogulitsa ma OEMs ndi Tier 1 kuti apange kusindikiza, kulumikiza, kuwongolera magetsi ndi njira za EMI zomwe zimathandiza kukhazikitsa miyezo yatsopano pakugwira ntchito kwa zida.
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Nthawi yotumiza: Aug-10-2023