I-oil seal iyisisetshenziswa esiklanyelwe ukuvala amalunga ezingxenye ezijikelezayo zemoto.Naphezu kokubonakala kulula kanye nolwazi olubanzi lokusetshenziswa ezimotweni, ukuklama nokukhethwa kwale ngxenye kuwumsebenzi obaluleke kakhulu futhi onzima.
Umbono oyiphutha 1: Ukukhetha uphawu lukawoyela, kwanele ukwazi ubukhulu bawo
Usayizi ubalulekile, kodwa kude nepharamitha kuphela.Ngosayizi ofanayo, izimpawu zikawoyela zingahluka kakhulu ezindaweni zazo kanye nobubanzi.Ukuze ukhethe okulungile, udinga ukwazi umbuso wokushisa lapho uphawu lwamafutha luzosebenza khona, isiqondiso sokujikeleza kwe-shaft yokufaka, kungakhathaliseki ukuthi izici zokuklama ezifana ne-double-breasted ziyadingeka.
Isiphetho: ukuze ukhethe okulungile kophawu lwamafutha, udinga ukwazi yonke imingcele yayo, futhi yiziphi izidingo ezibekwe umenzi wemoto.
Umbono oyiphutha 2. Izigxivizo zikawoyela ziyafana futhi umehluko wentengo usukela ekuhaha komkhiqizi.
Eqinisweni, izimpawu zikawoyela zingenziwa ngezinto ezihlukahlukene noma ngezindlela ezihlukahlukene.
Izinto ezisetshenziselwa ukukhiqiza ama-oyela seal:
● I-ACM (irabha ye-acrylate) - izinga lokushisa lesicelo -30 ° C ... + 150 ° C. Impahla eshibhile, evame ukusetshenziselwa ukwakhiwa kwezimpawu zamafutha ehabhu.
● I-NBR (injoloba engamelana nowoyela-nophethiloli) - izinga lokushisa lesicelo -40 ° C ... + 120 ° C. Ibonakala ngokumelana okuphezulu kuzo zonke izinhlobo zamafutha kanye nezinto zokugcoba.
● I-FKM (i-fluororubber, i-fluoroplastic) - izinga lokushisa lesicelo -20 ° C ... + 180 ° C. Izinto ezivame kakhulu zokukhiqizwa kwezimpawu zamafutha e-camshaft, ama-crankshafts, njll Inokumelana okuphezulu kwezinhlobonhlobo ze-acids, njengoba kanye nezixazululo, uwoyela, amafutha kanye nezincibilikisi.
● I-FKM+ (ama-fluororubber anegama elinezithasiselo ezikhethekile) - izinga lokushisa lesicelo -50 ° C ... + 220 ° C. Izinto ezinelungelo lobunikazi ezikhiqizwe inani elikhulu lamakhemikhali aphethwe (i-Kalrez ne-Viton (ekhiqizwe yi-DuPont), i-Hifluor (eyenziwe ngu-Parker) , kanye nezinto zokwakha i-Dai-El ne-Aflas).Zihluke ku-fluoroplastic evamile ngebanga lokushisa elinwetshiwe kanye nokwanda kokumelana nama-acids namafutha kanye nezinto zokugcoba.
Kubalulekile futhi ukuqaphela ukuthi ngesikhathi sokusebenza, uphawu lwamafutha aluthinti ubuso be-shaft, uphawu lwenzeka ngenxa yokudalwa kwe-vacuum endaweni yokujikeleza kwe-shaft usebenzisa ama-notch akhethekile.Ukuqondiswa kwabo kufanele kucatshangelwe lapho kukhethwa, ngaphandle kwalokho ama-notches ngeke amunce amafutha emzimbeni, kodwa ngokuphambene nalokho - aphushe aphume lapho.
Kunezinhlobo ezintathu zama-notches:
● Ukuzungezisa kwesokudla
● Ukuzungezisa kwesokunxele
● Okuhlehliswayo
Ngaphandle kwezinto ezibonakalayo, izimpawu zamafutha nazo ziyahlukahluka kubuchwepheshe bokukhiqiza.Namuhla, izindlela ezimbili zokukhiqiza zisetshenziswa: ukwenza nge-matrix, ukusika ezikhaleni nge-cutter.Esimweni sokuqala, ukuphambana kobukhulu nemingcele yophawu lwamafutha akuvunyelwe ezingeni lobuchwepheshe.Okwesibili, ngomthamo omkhulu wokukhiqiza, ukuphambuka ekubekezeleleni kungenzeka, ngenxa yalokho uphawu lwamafutha luvele lunobukhulu obuhlukile kulokho okucacisiwe.I-oil seal enjalo ingase inganikezeli uphawu oluthembekile futhi izoqala ukuvuza kusukela ekuqaleni, noma ihluleke ngokushesha ngenxa yokungqubuzana ku-shaft, ngesikhathi esifanayo kulimaze ubuso be-shaft ngokwayo.
Ukubamba uphawu olusha lwamafutha ezandleni zakho, zama ukugoba unqenqema lwalo lokusebenza: uphawu olusha lwamafutha, kufanele lube nokunwebeka, ngisho futhi lubukhali.Uma ibukhali, i-oil seal entsha izosebenza kangcono futhi ibe yinde.
Ngezansi ithebula lokuqhathanisa elifushane lama-seal kawoyela, kuye ngohlobo lwempahla kanye nendlela yokukhiqiza:
| I-NBR eshibhile | I-NBR yekhwalithi ephezulu | Imali yokuthengisa ye FKM | Ikhwalithi ye-FKM | I-FKM+ | |
|---|---|---|---|---|---|
| Ikhwalithi Sekukonke | Izinga eliphansi lomsebenzi kanye/noma izinto ezisetshenzisiwe | Izinga eliphezulu lomsebenzi kanye nezinto ezisetshenziswayo | Izinga eliphansi lomsebenzi kanye/noma izinto ezisetshenzisiwe | Izinga eliphezulu lomsebenzi kanye nezinto ezisetshenziswayo | Izinga eliphezulu lomsebenzi kanye nezinto ezisetshenziswayo |
| Ukucutshungulwa komphetho | Imiphetho awenziwanga ngomshini | Imiphetho yenziwe ngomshini | Imiphetho awenziwanga ngomshini | Imiphetho yenziwe ngomshini | Imiphetho iyacutshungulwa (kuhlanganise ne-laser) |
| Ukugibela: | Abaningi banebele elilodwa | Ibele kabili, uma kunesidingo ngokwesakhiwo | Abaningi banebele elilodwa | Ibele kabili, uma kunesidingo ngokwesakhiwo | Ibele kabili, uma kunesidingo ngokwesakhiwo |
| Jag | No | Kukhona, uma kunesidingo ngokwakhayo | Kungase kungabi njalo | Kukhona, uma kunesidingo ngokwakhayo | Kukhona, uma kunesidingo ngokwakhayo |
| Ubunjiniyela bokukhiqiza | Ukusika ngomsiki | Ukukhiqizwa kwe-matrix | Ukukhiqizwa kwe-matrix | Ukukhiqizwa kwe-matrix | Ukukhiqizwa kwe-matrix |
| Izinto zokwakha | Irabha emelana nowoyela | Irabha emelana nowoyela enezithasiselo ezikhethekile | I-PTFE eshibhile ngaphandle kwezithasiselo ezikhethekile | Ikhwalithi ephezulu ye-PTFE | I-PTFE yekhwalithi ephezulu enezithasiselo ezikhethekile (isb. Viton) |
| Isitifiketi | Eminye imikhiqizo ingase ingaqinisekisiwe | Imikhiqizo iqinisekisiwe | Eminye imikhiqizo ingase ingaqinisekisiwe | Imikhiqizo iqinisekisiwe | Yonke i-nomenclature iqinisekiswa ngokuya nge-TR CU |
| Izinga Lokushisa | -40°C ... +120°C (okwangempela kungaba ngaphansi) | -40°C ... +120°C | -20°C ... +180°C (okwangempela kungaba ngaphansi) | -20°C ... +180°C | -50°C ... +220°C |
Isikhathi sokuthumela: Jul-13-2023