PTFE Yakavharwa O-Ring
Chii chinonzi PTFE Coated O-Rings
PTFE-yakavharwa O-mhete zvisimbiso zvakaumbwa zvine echinyakare rabha O-ring core (eg, NBR, FKM, EPDM, VMQ) seye elastic substrate, pamusoro peiyo yakatetepa, yunifomu, uye yakasimba bhandi firimu repolytetrafluoroethylene (PTFE) inoiswa. Ichi chimiro chinosanganisa zvakanakira zvese zvishandiso, zvichikonzera akasiyana ekuita maitiro.
Primary Application Area
Nekuda kwezvivakwa zvavo zvakatanhamara, PTFE-yakavharwa O-mhete dzinoshandiswa zvakanyanya munzvimbo dzinodiwa dzine zvakakosha zvekuisa chisimbiso:
Indasitiri yeKemikari nePetrochemical:
Mavharuvhu ekuvharisa, mapombi, mareactor, uye pombi flanges inobata midhiya inoparadza zvakanyanya senge maasidhi akasimba, alkalis akasimba, maoxidizer akasimba, uye zvinonyungudutsa.
Kuisa chisimbiso mune yakakwirira-kuchena makemikari ekutumira masisitimu kudzivirira kusvibiswa.
Indasitiri yemishonga neBiotechnology:
Kuisa chisimbiso chemidziyo yekushandisa inoda hutsanana hwepamusoro, hapana leaching, uye pasina kusvibiswa (semuenzaniso, bioreactors, fermenters, ekuchenesa masisitimu, mitsara yekuzadza).
Kuisa chisimbiso kunopesana nehasha chekuchenesa makemikari uye yakakwirira-tembiricha chiutsi chinoshandiswa muCIP (Clean-in-Place) uye SIP (Sterilize-in-Place) maitiro.
Indasitiri yeChikafu neChinwiwa:
Zvisimbiso zvemichina inosangana neFDA/USDA/EU mirau yekubata chikafu (semuenzaniso, kugadzira michina, mafirita, pombi).
Inopikisa chikafu-giredhi yekuchenesa maajenti uye sanitizer.
Semiconductor & Electronics Indasitiri:
Zvisimbiso zvemvura yakanyanyisa (UPW) uye yakakwirira-kuchena kemikari (acids, alkalis, solvents) kuendesa uye magadzirirwo ekugadzirisa, zvinoda zvakanyanya kuderera kwechikamu chekugadzirwa uye simbi ion leaching.
Zvisimbiso zvemakamuri ekutsvaira uye plasma yekugadzira michina (inoda yakaderera kubuda).
Indasitiri yemotokari:
Kuisa chisimbiso munzvimbo dzakanyanya kupisa senge turbocharger masisitimu uye EGR masisitimu.
Zvisimbiso zvinoda kukweshera kwakaderera uye makemikari kuramba mukufambiswa uye mafuta masisitimu.
Zvishandiso mune nyowani simba mota bhatiri kutonhora masisitimu.
Aerospace & Defense:
Zvisimbiso zvinoda kuvimbika kwakanyanya, kupikisa tembiricha yakanyanyisa, uye kuramba kune yakakosha mafuta / hydraulic zvinwiwa mumahydraulic system, mafuta masisitimu, uye masisitimu ekudzora kwezvakatipoteredza.
General Indasitiri:
Zvisimbiso zvepneumatic uye hydraulic cylinders inoda kukweshana kwakadzika, hupenyu hurefu, uye kupfeka kuramba (kunyanya kune yakakwirira-speed, high-frequency reciprocating motion).
Zvisimbiso zvemavharuvhu akasiyana-siyana, pombi, uye zvibatanidza zvinoda makemikari kuramba uye zvisizvo zvimiti.
Zvisimbiso zvevacuum midziyo (inoda yakaderera outgassing).
Unique Advantages uye Performance Characteristics
Iyo yakakosha mukana wePTFE-yakavharwa O-mhete iri mune yakagadziridzwa composite performance inotorwa kubva muchimiro chavo:
Exceptional Chemical Inertness:
Imwe yezvakanakira zvakakosha. PTFE inoratidzira kupikisa kunenge kune ese makemikari (kusanganisira akasimba acids, akasimba alkalis, aqua regia, organic solvents, nezvimwewo), ayo akawanda ma substrates erabha asingakwanisi kuwana ega. Iyo yekupfekedza inonyatso paradzanisa iyo inoparadza midhiya kubva mukati merabha core, ichiwedzera zvakanyanya iyo O-ring's application renji munzvimbo dzakanyanyisa makemikari.
Yakanyanya Kuderera Coefficient yeFriction (CoF):
Kubatsira kwakakosha. PTFE ine imwe yeakaderera CoF kukosha pakati pezvinozivikanwa zvinhu zvakasimba (kazhinji 0.05-0.1). Izvi zvinoita kuti zvindori zveO zvakavharwa zvive zvakanaka mukushanda kwekuisa chisimbiso (semuenzaniso, simbi dzepiston dzinodzokorora, shaft dzinotenderera):
Zvinonyanya kuderedza kuputsika uye kumhanya kupesana.
Inoderedza kupisa kunokonzerwa nekukweshana uye kupfeka.
Inowedzera hupenyu hwechisimbiso (kunyanya mu-high-speed, high-frequency applications).
Inovandudza simba remagetsi ehurongwa.
Broad Operating Temperature Range:
Iyo PTFE coating pachayo inochengetedza mashandiro pane yakanyanya kupararira tembiricha kubva -200°C kusvika +260°C (nguva pfupi kusvika +300°C). Izvi zvakanyanya kuwedzera tembiricha yepamusoro yebhesi yerabha O-ring (semuenzaniso, NBR base inongogumira kusvika ~120°C, asi nePTFE coating inogona kushandiswa patembiricha yepamusoro, zvichienderana nerabha yakasarudzwa). Kuderera-kupisa kushanda kunovimbiswawo.
Yakanakisa Non-Stick Properties uye Non-Wettability:
PTFE ine simba rakadzika kwazvo repamusoro, zvichiita kuti rirambe rakanyanya kunamatira uye kusanyorova nemvura nemafuta-based liquids. Izvi zvinoguma ne:
Kudzikisira kusvibisa, kubikira, kana kunamatira kwezvisaririra zvemidhiya pane zvakavharwa.
Kuchenesa kuri nyore, kunyanya kwakakodzera kumatunhu ehutsanana senge chikafu uye pharma.
Yakachengetedzwa yekuisa chisimbiso kunyangwe ne viscous media.
Hutsanana Hwepamusoro uye Zvinobatika Zvishoma:
Iyo yakatsetseka, yakakora PTFE yekuvharisa pamusoro inoderedza kuburitswa kwezvimedu, zvinowedzera, kana zvakaderera-mamorekuru-huremu zvinhu. Izvi zvakakosha kune ekupedzisira-yakanyanya kuchena maapplication mune semiconductors, pharma, biotech, uye chikafu & chinwiwa, zvinobudirira kudzivirira kusvibiswa kwechigadzirwa.
Good Wear Resistance:
Nepo PTFE's inherent kupfeka kuramba isina kunaka, yakaderera zvakanyanya CoF inoderedza zvakanyanya kupfeka. Kana yakasanganiswa neyakakodzera rubha substrate (inopa rutsigiro uye kusimba) uye yakakodzera pamusoro pekupedzisira/kuzora, maO-mhete akavharidzirwa anowanzo ratidza kusagadzika kuri nani pane kushama rubber O-mhete mumashandisirwo ane simba.
Enhanced Chemical Resistance yeRubber Substrate:
Iyo yekupfekedza inodzivirira yemukati rabha musimboti kubva pakurwiswa nevezvenhau, ichibvumira kushandiswa kwemidziyo yerabha ine zvirinani zvimiro (se elasticity kana mutengo, semuenzaniso, NBR) munhau dzinowanzozvimba, kuomesa, kana kukanganisa rabha. Iyo inonyatso "zvombo" iyo rabha's elasticity nePTFE's chemical resistance.
Yakanaka Vacuum Kuenderana:
Yepamusoro-mhando yePTFE coatings ine yakanaka density uye inherently yakaderera outgassing, yakasanganiswa nekuwanda kweiyo rubber core, ichipa inoshanda vacuum chisimbiso.
3.Kufunga kwakakosha
Mutengo: Yakakwira kupfuura standard rubber O-rings.
Zvinodiwa zvekuisa: Inoda kunyatsobata kubata kudzivirira kukuvadza iyo yekupfeka nemidziyo inopinza. Kuisa magrooves anofanirwa kuve neakaringana-lead-in chamfers uye akatsetseka pamusoro pekupera.
Coating Kuvimbika: Hunhu hwekupfeka (kunamatira, kufanana, kusavapo kwepinholes) kwakakosha. Kana iyo jasi ikatyorwa, iyo yakafumurwa rabha inorasikirwa nekuwedzera kwayo kemikari kuramba.
Compression Set: Kunyanya kutsamira pane yakasarudzwa rubber substrate. Iyo yekupfeka pachayo haina kupa compressive resilience.
Upenyu Hwebasa Hwesimba: Nepo yakakwirira kupfuura rabha isina chinhu, iyo jasi inozopera pasi pekufamba kwenguva refu, kwakanyanya kudzokororwa kana kutenderera. Kusarudza mamwe mabhesi anodzivirira kupfeka (semuenzaniso, FKM) uye dhizaini yakagadziridzwa inogona kuwedzera hupenyu.
Summary
Iko kukosha kwePTFE-yakavharwa O-rings iri pakuti iyo PTFE yakavharidzirwa inopa hukuru hwemakemikari inertness, yakanyanya kuderera coefficient of friction, yakafara tembiricha siyana, non-stick zvivakwa, kuchena kwepamusoro, uye substrate dziviriro kune echinyakare rubber O-rings. Iwo ndiwo mhinduro yakanakira yekuda kuvhara matambudziko anosanganisira kusimba kwakasimba, hutsanana hwakanyanya, kutsika kwakaderera, uye tembiricha yakakura. Paunenge uchisarudza, zvakakosha kuti usarudze yakakodzera rubber substrate zvinhu uye coating yakatarwa zvichienderana nechaiyo application (midhiya, tembiricha, kudzvanywa, dynamic/static), uye ive nechokwadi chekumisikidza uye kugadzirisa kwakaringana kuchengetedza kutendeseka kwekuvhara uye kuisa chisimbiso.
Tafura iri pazasi inopfupisa maitiro akakosha uye mashandisirwo ePTFE-yakavharwa O-mhete:
