Zvisimbiso zvemafuta zvePolytetrafluoroethylene (PTFE)Zvishandiso zvemhando yepamusoro zvekuvhara simbi zvinozivikanwa nekudzivirira kwadzo makemikari zvakanyanya, kukweshana kwakaderera, uye kugona kushanda mukupisa kwakanyanya. Kusiyana nema elastomers echinyakare akadai se nitrile (NBR) kana fluorocarbon rabha (FKM), zvisimbiso zvePTFE zvinoshandisa hunhu hwakasiyana hwe fluoropolymers kuti zvipe kuvimbika kusingaenzaniswi mukushandiswa kwemaindasitiri kwakaoma. Chinyorwa chino chinoongorora chimiro, mabhenefiti, uye mashandisirwo akakosha ezvisimbiso zvePTFE oil, zvichipindura mibvunzo inowanzo bvunzwa nezve lubrication, kuona kubuda kwemvura, hupenyu hwese, nezvimwewo.
## Zvinhu Zvinokosha Zvaunofanira Kuziva
Zvisimbiso zvemafuta zvePTFEInobudirira zvikuru munzvimbo dzakaoma nekuda kwekusaita kwayo zviito zvisina kunaka, tembiricha yakakura (-200°C kusvika +260°C), uye kuramba makemikari, UV, uye kukwegura.
KusiyananitrilekanaZvisimbiso zveFKMPTFE haidi mafuta ekuzora muzvishandiso zvakawanda, zvichideredza mari yekugadzirisa.
Mashandisirwo akajairika anosanganisira mainjini emotokari, masisitimu emuchadenga, kugadzirisa makemikari, uye michina yemhando yepamusoro yechikafu.
Zvisimbiso zvePTFE zvakanakira maindasitiri anokoshesa mashandiro asina kusvibiswa, akadai semishonga nemasemiconductor.
Kuisa zvakanaka uye kusarudzwa kwezvinhu zvakakosha kuti hupenyu hurambe huchireba, izvo zvinogona kudarika nguva yakatarwa.makore gumi zvichikwiramumamiriro ezvinhu akanaka.
## Chii Chinonzi PTFE Oil Seals?
Tsanangudzo uye Maumbirwo
Zvisimbiso zvemafuta zvePTFE magasket emakanika akagadzirirwa kuchengetedza mafuta uye kubvisa tsvina mumigero inotenderera kana inodzokorodza. Maumbirwo awo anowanzo kusanganisira:
Muromo wePTFE: Mupendero wekuvhara unochinjika zvishoma unoenderana nekusakwana kwemubato.
Chinotakurisa cheSpring (Sarudzo): Inowedzera simba re radial pakushandisa simba rakawanda.
Nyaya yesimbi: Imba yesimbi isina ngura kana kabhoni kuti ive yakasimba pakuvaka.
Mhete dzeAnti-Extrusion: Dzivirira kuchinja kweganda kana paine kumanikidzwa kwakanyanya.
Maumbirwo emamorekuru ePTFE—musana wekabhoni wakazadzwa nemaatomu efluorine—haapindi makemikari ese, kusanganisira maasidhi, zvinonyungudutsa, uye mafuta. Pamusoro payo panyorova zvakanyanya inoderedza kupera simba uye kurasikirwa nesimba, zvichiita kuti ive yakakodzera kuvharwa kwesimba.
## PTFE vs. Nitrile uye FKM Oil Seals: Musiyano Mukuru
| Zvinhu | PTFE | Nitrile (NBR) | FKM (Fluorocarbon) |
| Nzvimbo yekupisa | -200°C kusvika +260°C | -40°C kusvika +120°C | -20°C kusvika +200°C |
| Kuramba Kemikari | Inodzivirira 98% yemakemikari | Yakanaka kune mafuta, mafuta ekufambisa | Yakanakira maacids, mafuta |
| Koefficient yekukweshana | 0.02–0.1 (kuzvizora mafuta) | 0.3–0.5 (inoda mafuta) | 0.2–0.4 (pakati nepakati) |
| Zvinodiwa paKuzora | Kazhinji hapana chinodiwa | Kudzoreredza mafuta kakawanda | Kuzora mafuta zvine mwero |
| Nguva yehupenyu | makore gumi zvichikwira | Makore maviri kusvika mashanu | Makore mashanu kusvika masere |
Nei PTFE Ichikunda Munzvimbo Dzakaoma:
Kugona Kumhanya Kwakaoma: Hunhu hwePTFE hwekuzvizora hunobvisa kudiwa kwemafuta ekunze muzviitiko zvakawanda, zvichideredza njodzi dzekusvibiswa.
Kuzvimba Kusina KubudaKusiyana nema elastomers, PTFE inodzivirira kuzvimba muzvinwiwa zvine hydrocarbon.
Kutevedzera Mutemo weFDA: PTFE inotenderwa kushandiswa pakudya uye pamishonga.
## Mashandisirwo uye Nheyo dzeKushanda
Zvisimbiso zvemafuta zvePTFE zvinoshandiswa kupi?
Mota: Mishaft yeTurbocharger, masisitimu ekutumira magetsi, uye masisitimu ekutonhodza mabhatiri eEV.
Muchadenga: Ma hydraulic actuators uye zvikamu zveinjini yejeti.
Kugadziriswa kweMakemikoro: Mapombi nemavharuvhu zvinobata zvinhu zvinopisa zvakaita se sulfuric acid.
Masekendakita: Makamuri ekuchenesa nemidziyo yekuchenesa plasma.
Chikafu & Mishonga: Michina yekusanganisa nekuzadza inoda zvisimbiso zvinoenderana neFDA.
Zvisimbiso zvePTFE Zvinoshanda Sei?
Zvisimbiso zvePTFE zvinoshanda kuburikidza ne:
Kuisa Chisimbiso Chinochinjika: Muromo wePTFE unoenderana nekusarongeka kudiki kwemubato kana kusarongeka kwepamusoro.
Kugadzirwa Kunopisa Kushoma: Kukweshana kushoma kunoderedza kuora kwekupisa.
Kusimbisa Kwakasimba uye Kusimba: Inoshanda mukushandiswa kwemotokari dzisingachinji uye dzinomhanya zvakanyanya (kusvika 25 m/s).
## Gwaro reKuzora Mafuta: Zvisimbiso zvePTFE Zvinoda Mafuta Here?
Kunyorovesa kwePTFE kunowanzobvisa kudiwa kwemafuta ekunze. Zvisinei, mumamiriro ezvinhu ane mutoro wakawanda kana kuti anomhanya zvakanyanya,mafuta anogadzirwa nesiliconekanaMafuta ePFPE (perfluoropolyether)Zvinokurudzirwa nekuda kwekushanda kwadzo uye kugadzikana kwekupisa. Dzivisa mafuta anogadzirwa nepetroleum, ayo anogona kuderedza PTFE nekufamba kwenguva.
## Maitiro Ekuona Kubuda Kwechisimbiso Chemafuta
Kuongorora Zvinoonekwa: Tsvaga mafuta akasara akakomberedza chisimbiso.
Kuedzwa kweDzvinyiriro: Isa mweya unomanikidza kuti uone kana paine maburi ari kubuda.
Maitiro Ekuita: Tarisa kukwira kwekupisa kana kushandiswa kwesimba kwakawedzerwa, zvichiratidza kukweshana kubva pachisimbiso chiri kutadza kushanda.
## Nguva Yehupenyu Hwechisimbiso Cheoiri Yeinjini: Zvinhu Nezvatinotarisira
Zvisimbiso zvemafuta zvePTFE muinjini zvinowanzogara kwenguva refuMakore 8–12, zvichienderana ne:
Mamiriro Ekushanda: Kupisa kwakanyanya kana zvinhu zvinosvibisa zvinoderedza hupenyu hwemhuka.
Hunhu hwekuisa: Kusarongeka zvakanaka panguva yekuisa jira kunokonzera kusakara nguva isati yakwana.
Giredhi rezvinhu: Misanganiswa yePTFE yakasimbiswa (semuenzaniso, yakazadzwa negirazi) inowedzera kugara kwenguva refu.
Kana tichienzanisa, nitrile seals muinjini dzinogara makore 3-5, nepo FKM inogara makore 5-7.
## Mafambiro Eindasitiri: Nei Zvisimbiso zvePTFE Zviri Kuwanikwa Nemukurumbira
Kugara kwenguva refu: Kugara kwenguva refu kwePTFE kunoderedza marara zvichienzaniswa nekutsiva elastomer kakawanda.
Mota dzemagetsi (maEV): Kudiwa kwezvisimbiso zvisingapindi muzvinotonhodza uye mavoltage akakwira kuri kuwedzera.
Indasitiri 4.0: Zvisimbiso zveSmart zvine masensa akavharirwa ekugadzirisa zvinofanotaurwa zviri kubuda.
## Mibvunzo Inowanzo bvunzwa
Q: Zvisimbiso zvePTFE zvinogona kubata nharaunda dzevacuum here?
A: Ehe, PTFE haina simba rakawanda rinoita kuti ive yakakodzera masisitimu evacuum mukugadzira ma semiconductor.
Mubvunzo: Zvisimbiso zvePTFE zvinogona kushandiswazve here?
A: Kunyange hazvo PTFE pachayo isina simba, kudzokorodza kunoda maitiro akasarudzika. Vagadziri vazhinji vane mapurogiramu ekudzorera zvinhu.
Mubvunzo: Chii chinoita kuti PTFE seals ikundikane nguva isati yakwana?
A: Kuisa zvisina kunaka, kusawirirana kwemakemikari, kana kudarika miganhu yekumanikidzwa (kazhinji > 30 MPa).
Mubvunzo: Munopa magadzirirwo echisimbiso chePTFE chakagadzirwa nemaoko here?
A: Ehe, [Zita reKambani Yenyu] rinopa mhinduro dzakagadzirirwa saizi dzakasiyana dzemubato, kumanikidzwa, uye midhiya.
## Mhedziso
Zvisimbiso zvemafuta zvePTFE zvinomiririra tekinoroji yepamusoro yekuvhara, zvichipa mashandiro asina muganho mumaindasitiri uko kukundikana kusiri sarudzo. Nekunzwisisa mabhenefiti azvo kupfuura nitrile neFKM, kusarudza mafuta akakodzera, uye kutevedzera maitiro akanakisa, mabhizinesi anogona kuderedza zvakanyanya nguva yekuzorora uye mari yekushanda.
Nguva yekutumira: Kurume-03-2025