Kuti mafuta ekuzora asabude uye zvinhu zvisiri zvekunze zvisapinde, chifukidziro che annular chakagadzirwa nechimwe kana zvakawanda zvinosungirirwa pa ring imwe kana washer ye bearing uye chinobata imwe ring kana washer, zvichiita kuti pave nemukana mudiki unozivikanwa se labyrinth. Mhete dzerabha dzine denderedzwa dzakaita se cross-section dzinoumba sealing ring. Inozivikanwa se O-shaped sealing ring nekuda kwe O-shaped cross-section yayo.

1. NBR nitrile rabha chisimbiso mhete

Mvura, peturu, silicone grease, silicone oil, diester-based lubricating oil, peturu-based hydraulic oil, nezvimwe zvinogona kushandiswa nayo. Parizvino, ndiyo rabha seal isingadhuri zvakanyanya uye inonyanya kushandiswa. Haikurudzirwi kushandiswa nezvinhu zvinonyungudutsa zvakaita sechloroform, nitrohydrocarbons, ketones, ozone, uye MEK. Tembiricha yakajairika yekushanda ndeye -40 kusvika 120 °C.

2. HNBR hydrogenated nitrile rabha chisimbiso mhete

Inodzivirira ozone, zuva, uye mamiriro ekunze, uye inodzivirira zvikuru ngura, kubvaruka, uye kudzvanywa. Inogara kwenguva refu kana tichienzanisa nerabha ye nitrile. Yakanakira kuchenesa mainjini emotokari nezvimwe zvinhu. Hazvikurudzirwi kushandisa izvi nezvinonhuwira, alcohols, kana esters. Tembiricha yakajairika yekushandisa ndeye -40 kusvika 150 °C.

3. Mhete yekuvhara rabha yeSIL silicone

Inodzivirira kupisa, kutonhora, ozone, uye kukwegura kwemhepo. Ine hunhu hwakanaka hwekudzivirira kupisa. Haipindi mafuta, uye simba rayo rekusunga rakaderera pane rabha yenguva dzose. Yakanakira kushandiswa nemagetsi emagetsi ekupisa mvura, maaroni emagetsi, maovheni ema microwave, nezvimwe zvishandiso zvepamba. Yakakodzerawo zvinhu zvakasiyana-siyana, zvakaita sematsime ekunwa nemaketero, zvinosangana neganda revanhu. Hazvikurudzirwi kushandisa sodium hydroxide, mafuta, maasidhi akaomeswa, kana zvimwe zvinonyungudutsa zvakasanganiswa. Tembiricha yekushanda kwakajairika ndeye -55~250 °C.

4. Mhete yekuvhara rabha yeVITON fluorine

Kusashanda kwayo zvakanaka mumamiriro ekunze, ozone, uye makemikari kunoenderana nekusashanda kwayo zvakanyanya pakupisa; zvisinei, kusashanda kwayo pakupisa kwakanyanya. Mafuta mazhinji uye zvinonyungudutsa, kunyanya maasidhi, aliphatic uye aromatic hydrocarbons, pamwe nemafuta emiriwo nemhuka, hazviikanganisi. Yakanakira masisitimu emafuta, nzvimbo dzemakemikari, uye zvinodiwa zvekuvhara injini yedhiziri. Kushandiswa nemaketones, maesters ane huremu hwakaderera, uye misanganiswa ine nitrates hazvikurudzirwi. -20 kusvika 250 °C ndiyo tembiricha yakajairika yekushanda.

5. Mhete yekuvhara rabha yeFLS fluorosilicone

Kushanda kwayo kunobatanidza hunhu hwakanakisa hwesilicone ne fluorine rabha. Inodzivirirawo zvakanyanya ku solvents, mafuta emafuta, tembiricha yepamusoro neyakaderera, uye mafuta. Inokwanisa kutsungirira kuparara kwemakemikari anosanganisira oxygen, solvents dzine aromatic hydrocarbons, uye solvents dzine chlorine. -50~200 °C ndiyo tembiricha yakajairika yekushanda.

6. EPDM EPDM rabha yekuvhara mhete

Haipindi mvura, haipindi makemikari, haipindi ozone, uye haipindi mamiriro ekunze. Inoshanda zvakanaka pakuvhara mashandisirwo ealcohols nemaketones pamwe chete nemhepo inopisa. Tembiricha yakajairika yekushandisa ndeye -55 kusvika 150 °C.

7. CR neoprene sealing ring

Inonyatsotsungirira mamiriro ekunze uye chiedza chezuva. Inodzivirira maasidhi akaderedzwa uye mafuta esilicone grease, uye haityi mafiriji akadai se dichlorodifluoromethane ne ammonia. Kune rumwe rutivi, inowedzera zvakanyanya mumafuta emaminerari ane mapoinzi eaniline akaderera. Kupisa kwakaderera kunoita kuti crystallization uye kuomarara zvive nyore. Yakakodzera mamiriro akasiyana-siyana emhepo, ezuva, uye ozone-exposed pamwe chete nekubatana kwakasiyana-siyana kwemakemikari uye kunodzivirira moto. Kushandisa ne strong acids, nitrohydrocarbons, esters, ketone compounds, uye chloroform hazvikurudzirwi. Tembiricha yakajairika yekushanda ndeye -55 kusvika 120 °C.

8. Mhete yekuvhara rabha yeIIR butyl

Inoshanda zvakanaka zvikuru panyaya yekusimba kwemhepo, kuramba kupisa, kuramba UV, kuramba ozone, uye kudzivirira kupisa; pamusoro pezvo, inogona kutsungirira zvinhu zvinokwanisa kuoxidation uye mafuta emhuka nemiriwo uye inodzivirira zvakanaka kune zvinonyungudutsa zvinosanganisira alcohols, ketones, uye esters. Yakakodzera michina inorwisa vacuum kana makemikari. Hazvikurudzirwi kuishandisa neparafini, aromatic hydrocarbons, kana petroleum solvents. -50 kusvika 110 °C ndiyo tembiricha yakajairika inoshandiswa.

9. Mhete yekuvhara rabha yeACM acrylic

Kusapindirana kwayo nemamiriro ekunze, kusapindirana nemafuta, uye mwero wekudzvanywa kwesimba remotokari zvese zviri pasi peavhareji, zvisinei simba rayo remakanika, kusapindirana nemvura, uye kusapindirana nekupisa kwakanyanya zvese zvakanaka. Inowanzo kuwanikwa mumagetsi ekufambisa uye magiya emota. Hazvikurudzirwi kushandiswa nebrake fluid, mvura inopisa, kana phosphate esters. Tembiricha yakajairika yekushanda ndeye -25 kusvika 170 °C.

10. NR mhete yekusimbisa rabha yechisikigo

Zvinhu zverabha zvakasimba hazvibviswi, kurebeswa, kubvaruka, uye kusachinjika. Zvisinei, zvinokurumidza kukura mumhepo, zvinonamira kana zvadziiswa, zvinokura zviri nyore, zvinonyunguduka mumafuta emaminerari kana peturu, uye zvinotsungirira acid yakapfava asi kwete alkali yakasimba. Zvakakodzera kushandiswa muzvinwiwa zvine hydroxyl ions, zvakaita se ethanol uye brake fluid. -20 kusvika 100 °C ndiyo tembiricha yekushanda.

11. PU polyurethane rabha yekuvhara mhete

Rabha yepolyurethane ine hunhu hwakanaka kwazvo hwemakanika; inopfuura mamwe marabha kana tichitarisa kuramba kupfeka uye kuramba kumanikidzwa zvakanyanya. Kuramba kwayo kukwegura, ozone, uye mafuta kwakanakawo; asi, kana tembiricha yakakwira, inogona kukanganiswa nehydrolysis. Inowanzo shandiswa pakuvhara zvinobatanidzwa zvinogona kutsungirira kupera uye kumanikidzwa kwakanyanya. Tembiricha yakajairika yekushanda ndeye -45 kusvika 90 °C.