Isitywina se-oyile sisixhobo esenzelwe ukuvala amalungu ajikelezayo emoto.Ngaphandle kokubonakala kulula kunye namava amaninzi okusetyenziswa kwiimoto, ukuyila kunye nokukhethwa kweli candelo ngumsebenzi obalulekileyo kunye nonzima.
Ubuxoki 1: Ukukhetha i-oyile, kwanele ukwazi ubukhulu bayo
Ubungakanani bubalulekile, kodwa kude nepharamitha kuphela.Ngobukhulu obufanayo, izitywina zeoli zinokwahluka kakhulu kwiipropati zabo kunye nobubanzi.Ukhetho oluchanekileyo, kufuneka ukwazi ukulawulwa kweqondo lokushisa apho i-oyile itywina iya kusebenza, isalathiso sokujikeleza kwe-shaft yofakelo, ingaba iimpawu zokuyila ezifana ne-double-breasted ziyafuneka.
Isiphelo: kukhetho oluchanekileyo lwesitywina seoli, kufuneka ukwazi zonke iiparamitha zayo, kwaye zeziphi iimfuno ezibekwe ngumenzi wemoto.
Ingcamango ephosakeleyo 2. Izitywina zeoyile ziyafana kwaye umahluko wexabiso uvela kubawa bomenzi.
Enyanisweni, izitywina zeoli zinokwenziwa ngezinto ezahlukeneyo okanye ngeendlela ezahlukeneyo.
Izinto ezisetyenziselwa ukuveliswa kweoli ye-oyile:
● I-ACM (i-rubber ye-acrylate) - ubushushu besicelo -30 ° C ... + 150 ° C. Eyona nto iphantsi kakhulu, isetyenziswa rhoqo ekwenzeni izitywina zeoli ye-hub.
● I-NBR (i-rubber-i-oil-and-petroli-resistant-resistant) - ukushisa kwesicelo -40 ° C ... + 120 ° C. Ibonakaliswe ngokuchasa okuphezulu kuzo zonke iintlobo zepetroli kunye ne-lubricant.
● I-FKM (i-fluororubber, i-fluoroplastic) - ukushisa kwesicelo -20 ° C ... + 180 ° C. Eyona nto ixhaphakileyo yokuveliswa kweoli ye-camshaft, i-crankshafts, njl. Inokumelana okuphezulu kwiintlobo ze-acids, njengoko nakwizinyibiliko, ioyile, izibaso nezinyibilikisi.
● I-FKM + (i-branded fluororubbers enezongezo ezikhethekileyo) - ubushushu besicelo -50 ° C ... + 220 ° C. Izinto ezinelungelo lobunikazi eziveliswe ngamanani amakhulu eekhemikhali zokubamba (iKalrez kunye neViton (eyenziwe yiDuPont), iHifluor (eyenziwe nguParker) , kunye nezixhobo zeDai-El kunye neAflas).Ziyahluke kwi-fluoroplastic eqhelekileyo ngoluhlu lobushushu olwandisiweyo kunye nokwanda kokuchasana ne-acids kunye namafutha kunye ne-lubricant.
Kwakhona kubalulekile ukuba uqaphele ukuba ngexesha lokusebenza, i-oyile itywina ayithinteli umphezulu we-shaft, isitywina senzeke ngenxa yokudalwa kwe-vacuum kwindawo yokujikeleza kwe-shaft usebenzisa iinotshi ezikhethekileyo.Ulwalathiso lwabo kufuneka luthathelwe ingqalelo xa ukhetha, ngaphandle koko iinotshi aziyi kutsala ioli emzimbeni, kodwa ngokuchaseneyo - yikhuphe ngaphandle apho.
Kukho iintlobo ezintathu zeenotshi:
● Ukujikeleza ngasekunene
● Ukujikeleza ngasekhohlo
● Inokubuyiselwa umva
Ukongeza kwizinto eziphathekayo, izitywina zeoli nazo ziyahluka kwiteknoloji yokuvelisa.Namhlanje, iindlela ezimbini zokuvelisa zisetyenzisiweyo: ukwenza nge-matrix, ukusika kwiindawo ezingenanto kunye nomsiki.Kwimeko yokuqala, ukuphambuka kwimilinganiselo kunye neeparitha zesitywina seoli akuvumelekanga kwinqanaba lezobuchwepheshe.Kweyesibini, kunye nomthamo omkhulu wemveliso, ukuphambuka ekunyamezeleni kunokwenzeka, ngenxa yoko isitywina seoli sele sinemilinganiselo eyahlukileyo kwizinto ezichaziweyo.Isitywina esinjalo se-oyile asinakubonelela ngesitywina esithembekileyo kwaye siya kuqala ukuvuza kwasekuqaleni, okanye siphumelele ngokukhawuleza ngenxa ye-friction kwi-shaft, kwangaxeshanye sonakalise umphezulu we-shaft ngokwayo.
Ukubamba itywina elitsha leoli ezandleni zakho, zama ukugoba umgca walo osebenzayo: kwisitywina esitsha seoli, kufuneka sibe ne-elastic, kwaye sibukhali.Okukhona ibukhali, kokukhona itywina elitsha le-oyile liya kusebenza ngcono kwaye lide.
Ngezantsi itheyibhile emfutshane yokuthelekisa izitywini zeoyile, kuxhomekeke kuhlobo lwezixhobo kunye nendlela yokuvelisa:
| I-NBR etshiphu | I-NBR ekumgangatho ophezulu | FKM ngexabiso eliphantsi | Umgangatho we-FKM | FKM+ | |
|---|---|---|---|---|---|
| Umgangatho uwonke | Umgangatho ophantsi womsebenzi kunye/okanye izinto ezisetyenzisiweyo | Umgangatho ophezulu wokwenziwa kwezinto kunye nezinto ezisetyenzisiweyo | Umgangatho ophantsi womsebenzi kunye/okanye izinto ezisetyenzisiweyo | Umgangatho ophezulu wokwenziwa kwezinto kunye nezinto ezisetyenzisiweyo | Umgangatho ophezulu wokwenziwa kwezinto kunye nezinto ezisetyenzisiweyo |
| Ukusetyenzwa komda | Imiphetho ayenziwanga ngoomatshini | Imiphetho yenziwe ngoomatshini | Imiphetho ayenziwanga ngoomatshini | Imiphetho yenziwe ngoomatshini | Imiphetho iyacutshungulwa (kubandakanywa nelaser) |
| Ukukhwela: | Uninzi lunebele enye | Ibele kabini, ukuba kuyimfuneko ngokwesakhiwo | Uninzi lunebele enye | Ibele kabini, ukuba kuyimfuneko ngokwesakhiwo | Ibele kabini, ukuba kuyimfuneko ngokwesakhiwo |
| Jag | No | Kukho, ukuba kuyimfuneko eyakhayo | Isenokungabi njalo | Kukho, ukuba kuyimfuneko eyakhayo | Kukho, ukuba kuyimfuneko eyakhayo |
| Ubunjineli bemveliso | Ukusika ngomsiki | Ukuveliswa kweMatrix | Ukuveliswa kweMatrix | Ukuveliswa kweMatrix | Ukuveliswa kweMatrix |
| Izinto zokwenziwa | Irabha enganyangekiyo kwi-oyile | Irabha enganyangekiyo kwi-oyile enezongezo ezikhethekileyo | I-PTFE etshiphu ngaphandle kwezongezo ezikhethekileyo | Umgangatho ophezulu we-PTFE | Umgangatho ophezulu we-PTFE enezongezo ezikhethekileyo (umz. Viton) |
| Isiqinisekiso | Ezinye iimveliso zisenokungaqinisekiswa | Iimveliso ziqinisekisiwe | Ezinye iimveliso zisenokungaqinisekiswa | Iimveliso ziqinisekisiwe | I-nomenclature yonke iqinisekisiwe ngokwe-TR CU |
| Uluhlu lobushushu | -40°C ... +120°C (eyona nto inokuba ngaphantsi) | -40°C ... +120°C | -20°C ... +180°C (eyona nto inokuba ngaphantsi) | -20°C ... +180°C | -50°C ... +220°C |
Ixesha lokuposa: Jul-13-2023