Ukumisa i-oyile yokuthambisa ekuphumeni kunye nezinto zangaphandle ekungeneni, isigqubuthelo se-annular esenziwe ngecandelo elinye okanye ngaphezulu sigxininiswe kwindandatho enye okanye iwasha yokuthwala kunye nokunxibelelana nenye ikhonkco okanye iwasha, idala isithuba esincinci esibizwa ngokuba yilabyrinth. Izangqa zerabha ezinomnqamlezo ojikelezayo zenza umsesane wokutywina. Yaziwa ngokuba yi-O-shaped seal ring ngenxa ye-O-shaped cross-section.

1. Iringi yokutywina yerabha ye-nitrile ye-NBR

Amanzi, i-petroli, i-silicone grease, i-oyile ye-silicone, i-oyile yokuthambisa i-diester-based, i-oyile ye-hydraulic esekelwe kwi-petroleum, kunye nezinye imidiya zingasetyenziswa kunye nayo. Okwangoku, lelona xabiso lincinci kwaye lisetyenziswa kakhulu irabha itywina. Ayikhuthazwa ukuba isetyenziswe kunye nezinyibilikisi zepolar ezifana neklorofomu, i-nitrohydrocarbons, ii-ketones, i-ozone, kunye ne-MEK. Uluhlu lobushushu obuqhelekileyo bokusebenza luyi -40 ukuya kwi-120 °C.

2. Iringi yokutywina yerabha ye-nitrile eyenziwe nge-HNBR

Inokumelana kakuhle ne-ozone, ukukhanya kwelanga, kunye nemozulu, kwaye iyamelana kakhulu nokugqwala, ukukrazula, kunye ne-compression deformation. Ukuqina okukhulu xa kuthelekiswa nerabha ye-nitrile. Ilungele ukucoca iinjini zeemoto kunye nezinye izixhobo. Akucetyiswa ukuba usebenzise oku kunye nezisombululo ezinevumba elimnandi, i-alcohol, okanye i-esters. Uluhlu lobushushu obuqhelekileyo bokusebenza luyi-40 ukuya kwi-150 °C.

3. Isilingi se-silicone yerabha yokutywina

Ukuxhathisa okugqwesileyo kubushushu, ingqele, i-ozone, kunye nokuguga okusemoyeni ilawulwa kuko. uneempawu ezigqwesileyo zokukhusela. Ayimelani ne-oli, kwaye amandla ayo okuqina angaphantsi kunalawo erabha eqhelekileyo. Ilungele ukusetyenziswa nezifudumezi zamanzi zombane, ii-ayini zombane, ii-oveni zemicrowave, kunye nezinye izixhobo zasekhaya. Kukwafanelekile kwizinto ezahlukeneyo, imithombo yokusela enjalo kunye neeketile, ezidibana nolusu lomntu. Akukhuthazwa ukusebenzisa i-sodium hydroxide, i-oyile, i-acids concentrated, okanye i-solvents egxininiswe kakhulu. Uluhlu lobushushu bomsebenzi oqhelekileyo ngu -55 ~ 250 °C.

4. I-VITON fluorine irabha yokutywina iringi

Imozulu yayo ekhethekileyo, i-ozone, kunye nokumelana neekhemikhali kuhambelana nokumelana nokushisa okuphezulu; nangona kunjalo, ukumelana kwayo okubandayo kuphantsi. Uninzi lweeoyile kunye ne-solvents, ngakumbi i-acids, i-aliphatic kunye ne-aromatics hydrocarbons, kunye nemifuno kunye ne-oyile yezilwanyana, aziyichaphazeli. Ilungele iinkqubo zamafutha, izibonelelo zekhemikhali, kunye neemfuno zokutywinwa kwe-injini ye-diesel. Ukusetyenziswa kunye nee-ketones, i-esters ephantsi ye-molecular weight, kunye nemixube equkethe i-nitrate ayicetyiswa. -20 ukuya kuma-250 °C luhlobo lobushushu obusebenzayo.

5. I-FLS fluorosilicone irabha yokutywina iringi

Ukusebenza kwayo kudibanisa iimpawu ezintle ze-silicone kunye nerubha ye-fluorine. Ikwaxhathisa kakhulu kwizinyibilikisi, i-oyile yamafutha, amaqondo obushushu aphezulu naphantsi, kunye nee-oyile. ezikwaziyo ukumelana nokhukuliseko lweekhemikhali eziquka ioksijini, izinyibilikisi ezinearomatic hydrocarbons, kunye nezinyibilikisi ezineklorini. -50 ~ 200 °C luhlobo lobushushu obusebenzayo.

6. I-EPDM EPDM irabha yokutywina iringi

Iyakwazi ukumelana namanzi, ukumelana neekhemikhali, ukumelana ne-ozone, kunye nemozulu. Isebenza kakuhle ekutywineni izicelo ezibandakanya utywala kunye neeketoni kunye nomphunga wamanzi wobushushu obuphezulu. Uluhlu lobushushu obuqhelekileyo bokusebenza luyi -55 ukuya kwi-150 °C.

7. Umsesane wokutywina we-CR neoprene

Iyakwazi ukumelana nemozulu kunye nokukhanya kwelanga. Iyakwazi ukumelana ne-acids diluted kunye ne-silicone grease lubricants, kwaye ayizoyiki iifriji ezifana ne-dichlorodifluoromethane kunye ne-ammonia. Ngakolunye uhlangothi, iyanda kakhulu kwi-oyile yamaminerali kunye namanqaku aphantsi e-aniline. Amaqondo obushushu aphantsi enza icrystallization kunye nokuqina kube lula. Ifanelekile kuluhlu lweemeko ezivezwe emoyeni, zelanga, kunye ne-ozone kunye noluhlu lwamakhonkco okutywina okutywinwa ngamachiza kunye nokumelana nomlilo. Sebenzisa ngeeasidi ezinamandla, i-nitrohydrocarbons, i-esters, i-ketone compounds, kunye ne-chloroform ayicetyiswa. Umgangatho wobushushu obuqhelekileyo bokusebenza ngu -55 ukuya kwi-120 °C.

8. IIR butyl irabha yokutywina iringi

Isebenza kakuhle ngakumbi malunga nokuxinana komoya, ukumelana nobushushu, ukuxhathisa kwe-UV, ukuxhathisa kwe-ozone, kunye nokugquma; ukongeza, inokumelana nokuvezwa kwizinto ezinokonakalisa ioyile yezilwanyana kunye nemifuno kwaye inokumelana kakuhle nezinyibilikisi zepolar ezibandakanya ialkoholi, iiketones, kunye neeesters. Ilungele izixhobo zokufunxa okanye zokuxhathisa imichiza. Akucetyiswa ukuba isetyenziswe kunye ne-kerosene, i-hydrocarbons enevumba elimnandi, okanye izinyibilikisi zepetroleum. -50 ukuya kwi-110 °C luhlobo lobushushu obusebenzayo.

9. Umsesane wokutywina werabha we-acrylic we-ACM

Ukumelana nemozulu yayo, ukunganyangeki kwe-oyile, kunye nenqanaba lokunyanzeliswa koxinzelelo zonke zingaphantsi komndilili, nangona kunjalo amandla ayo omatshini, ukunganyangeki kwamanzi, kunye nokumelana nobushushu obuphezulu konke kuhle kakhulu. Ngokuqhelekileyo ifumaneka kwi-power steering kunye ne-gearbox systems yeemoto. Akukhuthazwa ukuba kusetyenziswe i-brake fluid, amanzi ashushu, okanye i-phosphate esters. Umgangatho wobushushu obuqhelekileyo bokusebenza ngu -25 ukuya kwi-170 °C.

10. Umsesane wokutywina werabha wendalo we-NR

Impahla yerabha yomelele ngokuchasene nokukrazuka, ukunwebeka, ukuguga, kunye nokunwebeka. Nangona kunjalo, iguga ngokukhawuleza emoyeni, inamathele xa ishushu, yandisa ngokukhawuleza, inyibilika kwi-oyile ye-mineral okanye i-petroli, kwaye imelana ne-asidi epholileyo kodwa ingekho i-alkali enamandla. Ifanele ukusetyenziswa kulwelo olune-hydroxyl ion, i-ethanol enjalo kunye nolwelo lwe-brake yemoto. -20 ukuya kwi-100 °C luhlobo lobushushu obusebenzayo.

11. I-PU polyurethane irabha yokutywina iringi

Irabha yePolyurethane ineempawu ezibalaseleyo zoomatshini; idlula ezinye iirubha malunga nokuxhatshazwa kokugqoka kunye nokuxhatshazwa koxinzelelo oluphezulu. Ukuxhathisa kwayo ekwaluphaleni, i-ozone, kunye ne-oyile ngokufanayo kuhle kakhulu; kodwa, kumaqondo obushushu aphezulu, ichaphazeleka kwi-hydrolysis. Ngokuqhelekileyo isetyenziselwa ukutywina ukudibanisa okunokumelana nokunxiba kunye noxinzelelo oluphezulu. Uluhlu lobushushu obuqhelekileyo bokusebenza luyi -45 ukuya kuma-90 °C.