PTFE Yakafukidzwa neO-Ring
Chii chinonzi PTFE Coated O-Rings
Mhete dzeO-dzakafukidzwa nePTFE isimbi dzakasanganiswa dzine simbi yeO-ring yerabha yechinyakare (semuenzaniso, NBR, FKM, EPDM, VMQ) sesimbi inonamira, pamusoro payo panoshandiswa firimu rakatetepa, rakafanana, uye rakabatana repolytetrafluoroethylene (PTFE). Chimiro ichi chinosanganisa zvakanakira zvese zviri zviviri, zvichikonzera hunhu hwakasiyana hwekushanda.
Nzvimbo dzeKushandisa Dzinokosha
Nekuda kwehunhu hwavo hwakanaka, PTFE-coated O-rings dzinoshandiswa zvakanyanya munzvimbo dzinoda kusimbiswa dzine zvinodiwa zvakakosha zvekuvhara:
Indasitiri yeMakemikari nePetrokemikari:
Mavharuvhu ekuvhara, mapombi, ma reactor, uye mapipe flanges zvinobata zvinhu zvinoparadza zvakanyanya senge maasidhi akasimba, maalkali akasimba, maoxidizer akasimba, uye zvinonyungudutsa zvakasikwa.
Kuvhara masisitimu ekutumira makemikari akachena kwazvo kudzivirira kusvibiswa.
Indasitiri yeMishonga & Biotechnology:
Kuvhara michina yekushanda kunoda kuchena kwakanyanya, kusabvisa tsvina, uye kusasvibiswa (semuenzaniso, ma bioreactors, ma fermenters, masisitimu ekuchenesa, mitsetse yekuzadza).
Kuvhara kunodzivirira makemikari anochenesa uye utsi hwekupisa kwakanyanya hunoshandiswa muCIP (Clean-in-Place) uye SIP (Sterilize-in-Place).
Indasitiri yeChikafu & Zvinwiwa:
Zvisimbiso zvemidziyo zvinoenderana nemitemo yeFDA/USDA/EU yekubata chikafu (semuenzaniso, michina yekugadzirisa, fillers, mapaipi).
Haipindi mishonga yekuchenesa uye yekuchenesa inoshandiswa pakuchenesa chikafu.
Indasitiri yeSemiconductor & Electronics:
Zvivharo zvemvura yakachena kwazvo (UPW) uye masisitimu ekutumira nekubata emakemikari akachena kwazvo (acids, alkalis, solvents), zvinoda kugadzirwa kwezvikamu zvishoma uye leaching yesimbi.
Zvisimbiso zvemakamuri evacuum uye michina yekugadzirisa plasma (inoda kuti gasi risaburitswe zvakanyanya).
Indasitiri yeMotokari:
Kuvhara munzvimbo dzinopisa zvakanyanya dzakadai se turbocharger systems uye EGR systems.
Zvisimbiso zvinoda kukweshana kushoma uye kusakwanisa kushandisa makemikari mumagetsi emagetsi uye masisitimu emafuta.
Mashandisirwo muhurongwa hutsva hwekutonhodza mabhatiri emotokari.
Ndege neDziviriro:
Zvisimbiso zvinoda kuvimbika kwakanyanya, kuramba kupisa kwakanyanya, uye kuramba mafuta chaiwo/mvura yemvura muma hydraulic system, ma fuel system, uye ma Environmental control systems.
Indasitiri Yese:
Zvisimbiso zvemasilinda emhepo uye ehydraulic zvinoda kukweshana kushoma, kugara kwenguva refu, uye kuramba kupfeka (kunyanya pakufamba nekukurumidza, kwakakwirira-frequency kudzokorora).
Zvisimbiso zvemavharuvhu akasiyana-siyana, mapombi, uye zvinobatanidza zvinoda kuramba makemikari uye hunhu husina kunamira.
Zvisimbiso zvemidziyo inobvisa mweya (zvinoda kuti mhepo ibude zvishoma).
Mabhenefiti Akasarudzika uye Hunhu Hwekuita
Chinhu chikuru chinobatsira chePTFE-coated O-rings chiri mukushanda kwakawedzerwa kwecomposite kunobva muchimiro chadzo:
Kusashanda Kwemakemikari Kunoshamisa:
Chimwe chezvakanakira zvikuru. PTFE inoratidza kusimba kukuru kumakemikari ese (kusanganisira maasidhi akasimba, maalkali akasimba, aqua regia, zvinonyungudutsa zve organic, nezvimwewo), izvo zvisingagone kuitwa nemidziyo yakawanda yerabha yoga. Kuputira uku kunonyatsobvisa zvinokuvadza kubva mukati merabha, zvichiwedzera zvakanyanya huwandu hweO-ring inoshandiswa munzvimbo dzakanyanya makemikari.
Koefficient Yakaderera Zvikuru Yekukweshana (CoF):
Chinhu chakakosha. PTFE ine imwe yeCoF values yakaderera pakati pezvinhu zvakasimba zvinozivikanwa (kazhinji 0.05-0.1). Izvi zvinoita kuti maO-rings akaputirwa ave akanaka mukushandiswa kwesimba rekuvhara (semuenzaniso, tsvimbo dzepiston dzinodzokororwa, shafts dzinotenderera):
Zvinonyanya kuderedza kukweshana kwemakumbo nekukakavadzana.
Inoderedza kupisa nekupfekwa kunokonzerwa nekukweshana.
Inowedzera hupenyu hwechisimbiso (kunyanya mukushandiswa kwekumhanya kwakanyanya uye kwemafrequency akakwira).
Inovandudza mashandiro esimba resisisitimu.
Range yeKupisa Kwekushanda Yakakura:
Kuputira kwePTFE pachako kunochengetedza kushanda kwese kwese pakupisa kwakakura kubva -200°C kusvika +260°C (kwenguva pfupi kusvika +300°C). Izvi zvinowedzera zvakanyanya muganho wekupisa kwepamusoro weO-ring yerabha yekutanga (semuenzaniso, NBR base inowanzo ganhurira kusvika ~120°C, asi nePTFE coating inogona kushandiswa pakupisa kwakakwira, zvichienderana nerabha yakasarudzwa). Kushanda kwekupisa kwakaderera kunovimbiswawo.
Hunhu Hwakanaka Hwakanaka Husina Kunamira uye Husinganyorove:
PTFE ine simba shoma pamusoro, zvichiita kuti irambe yakasimba pakunamatira uye isanyoroveswe nemvura uye zvinwiwa zvinobva mumafuta. Izvi zvinoguma ne:
Kuderedza kusvibiswa, kubikwa, kana kunamira kwezvisaririra zve media panzvimbo dzinovhara.
Kuchenesa kuri nyore, kwakakodzera zvakanyanya kune nzvimbo dzine hutsanana hwakanyanya dzakadai sezvekudya nemishonga.
Kuchengetedza kushanda kwekuvhara kunyangwe nemidziyo ine viscous.
Kuchena Kwakanyanya uye Zvisingabvisi Mvura Zvishoma:
Kupfeka kwePTFE kwakapfava uye kwakakora kunoderedza kubuda kwezvidimbu, zvinowedzerwa, kana zvinhu zvine huremu hushoma. Izvi zvakakosha pakushandiswa kwehutsanana hwakanyanya mu semiconductors, pharma, biotech, uye chikafu nezvinwiwa, zvichidzivirira kusvibiswa kwechigadzirwa.
Kuramba Kupfeka Zvakanaka:
Kunyange hazvo PTFE isingakwanise kuramba kupfeka zvakanaka, CoF yayo yakaderera inoderedza zvakanyanya kupfekwa. Kana ikabatanidzwa nerabha substrate yakakodzera (inopa rutsigiro uye kusimba) uye kupedzisa/kuzora kwakakodzera pamusoro, maO-rings akafukidzwa anowanzo ratidza kupfekwa kuri nani pane maO-rings asina rabha mumashandisirwo anochinja-chinja.
Kuramba Kwakawedzerwa Kwemakemikari kweRubber Substrate:
Kuputira uku kunodzivirira mukati merabha kubva mukurwiswa nemidziyo yemagetsi, zvichibvumira kushandiswa kwezvinhu zverabha zvine hunhu huri nani (senge kusimba kana mutengo, semuenzaniso, NBR) mumidziyo yemagetsi inowanzozvimba, kuomesa, kana kuderedza rabha. Zvinonyatso "chengetedza" kusimba kwerabha nekusagona kwemakemikari kwePTFE.
Kuenderana Kwakanaka Kwemuchina Wekuputira Vacuum:
Mapendi ePTFE emhando yepamusoro ane huremu hwakanaka uye haabudisi mweya zvakanyanya, pamwe chete nekusimba kwepakati perabha, zvichiita kuti chivharo chevacuum chishande zvakanaka.
3. Zvinhu Zvakakosha Kufunga nezvazvo
Mutengo: Wakakwira kupfuura maO-rings erabha akajairwa.
Zvinodiwa pakuisa: Zvinoda kubatwa nokungwarira kuti usakuvadza chifukidziro nemidziyo yakapinza. Migero yekuisa inofanira kunge iine machamfer akakwana e lead-in uye mafinishes akatsetseka epamusoro.
Kusimba Kwekuputira: Hunhu hwechiputira (kunamatira, kufanana, kusavapo kwemaburi ekupinza) hwakakosha. Kana chiputira chikapwanyika, rabha iri pachena rinorasikirwa nekudzivirira kwaro kwemakemikari kwakawedzerwa.
Seti Yokudzvanya: Inonyanya kuenderana ne substrate yerabha yakasarudzwa. Kupfeka pachako hakupi simba rekudzvanya.
Hupenyu Hwebasa Rinochinja: Kunyangwe iri nani zvikuru pane rabha isina chinhu, chifukidziro chinozopera kana chikafamba kwenguva refu, chakasimba kana kuti chichitenderera. Kusarudza rabha dzebase dzinoramba kupera (semuenzaniso, FKM) uye dhizaini yakagadziriswa zvinogona kuwedzera hupenyu.
Pfupiso
Kukosha kukuru kwePTFE-coated O-rings kuri pakuti PTFE coating inopa sei makemikari asina simba, coefficient yakaderera kwazvo yekukweshana, huwandu hwakafara hwekupisa, hunhu husina kunamira, kuchena kwakanyanya, uye dziviriro ye substrate kune rarabha O-rings dzechinyakare. Idzi mhinduro dzakanakira matambudziko anoda kuvhara anosanganisira ngura yakasimba, kuchena kwakanyanya, kukweshana kushoma, uye huwandu hwakafara hwekupisa. Pakusarudza, zvakakosha kusarudza rabha substrate yezvinhu zvakakodzera uye zvinodiwa zve coating zvichienderana nekushandiswa kwayo (media, tembiricha, kumanikidzwa, dynamic/static), uye kuve nechokwadi chekuiswa uye kugadziriswa kwakakodzera kuchengetedza kusimba kwe coating uye kushanda kwe sealing.
Tafura iri pazasi inotsanangura hunhu hwakakosha uye mashandisirwo ePTFE-coated O-rings:
