Thepa e etselitsoeng motho ka mong NBR/EPDM/FKM/SIL Rubber O-Ring

NBR

Rubber ea Nitrile e lokisoa ka copolymerization ea acrylonitrile le butadiene. Dikahare tsa acrylonitrile li tloha ho 18% ho isa ho 50%. Ha dikahare tsa acrylonitrile di le hodimo, kganyetso ya oli ya hydrocarbon e ba betere, empa tshebetso ya mocheso o tlase e mpefala, mocheso o akaretsang wa tshebediso ke -40~120 ℃. Butanol ke e nngwe ya rabara e sebediswang haholo bakeng sa ditiiso tsa oli le di-O-rings.

Melemo:

· Ho hanyetsa oli, metsi, seqhibilihisi le oli e nang le khatello e phahameng hantle.

· Ho kheloha hantle ha khatello, ho hanyetsa ho tsofala le ho lelefala.

Mathata:

· Ha e lokele di-solvent tsa polar tse kang di-ketone, ozone, nitrohydrocarbons, MEK le chloroform. · E sebediswa bakeng sa ho etsa tanka ya peterole, tanka ya oli e tlotsang le dikarolo tsa rabara, haholo-holo dikarolo tsa ho kwala, e sebediswang oling ya hydraulic ya peterole, peterole, metsi, mafura a silicon, oli ya silicon, oli e tlotsang ya diester, oli ya hydraulic ya ethylene glycol le metswako e meng ya metsi. Ke seti sa rabara se sebediswang haholo le se theko e tlase ka ho fetisisa.

FKM

Rabara ea Khabone ea Fluoro Mofuta ofe kapa ofe o fapaneng ho latela sekgahla sa fluorine (sebopeho sa monomer) sa limolek'hule tsa fluorine. Khanyetso ea mocheso o phahameng e molemo ho feta rabara ea silicone, e na le khanyetso e ntle ea lik'hemik'hale, khanyetso ho boholo ba oli le solvent (ntle le ketone, ester), khanyetso ea boemo ba leholimo le khanyetso ea ozone; Khanyetso ea serame ha e ntle, tšebeliso e akaretsang ea mocheso oa -20~250 ℃. Foromo e khethehileng e ka mamella mocheso o tlase ho fihlela ho -40 ℃. Melemo:

· Ho hanyetsa mocheso ho fihlela ho 250 ℃

· E hanela boholo ba oli le metsoako, haholo-holo li-acid tsohle, oli ea aliphatic, e nkhang hamonate le ea liphoofolo le ea meroho.

Mathata:

· Ha e kgothaletswe bakeng sa di-ketone, di-ester tse nang le boima bo tlase ba dimolek'hule le metswako e nang le nitrate. · Dikoloi, diterene, dienjene tsa diesel le ditsamaiso tsa mafura.

SIL

Ketane e ka sehloohong ea rabara ea Silicone e entsoe ka silicon (-si-O-Si) e kopantsoeng hammoho. Ho hanyetsa mocheso hantle, ho hanyetsa serame, ho hanyetsa ozone, ho hanyetsa botsofali ba sepakapaka. Tshebetso e ntle ea ho thibela motlakase. Matla a ho thapolla a rabara e tloaelehileng a fokola 'me ha a na ho hanyetsa oli. Melemo:

· Matla a ho thapolla ho fihlela ho 1500PSI le ho hanyetsa ho taboha ho fihlela ho 88LBS kamora ho etswa

· Ho tenyetseha ho hotle le ho sotha ho hotle ha khatello

· Ho hanyetsa hantle di-solvent tse sa nke lehlakore

· Ho hanyetsa mocheso hantle haholo

· Ho hanyetsa serame hantle haholo

· Ho hanyetsa hantle khoholeho ea ozone le oxide

Tshebetso e ntle haholo ea ho thibela motlakase

· Ho thibela mocheso hantle le ho qhala mocheso hantle

Mathata:

· Ha e kgothaletswe ho sebediswa dihlapolling tse ngata tse kopaneng, oli, di-acid tse kopaneng le sodium hydroxide e hlapolotsweng. · Ditiiso kapa dikarolo tsa rabara tse sebediswang indastering ya disebediswa tsa lapeng, tse kang dipitsa tsa motlakase, di-aene, dikarolo tsa rabara ka diontong tsa microwave.

· Litiiso kapa likarolo tsa rabara indastering ea elektroniki, joalo ka linotlolo tsa mohala oa thekeng, li-shock absorber tse DVD, litiiso tse manonyeletsong a cable, jj.

· Litiiso holim'a mefuta eohle ea lintho tse amanang le 'mele oa motho, joalo ka libotlolo tsa metsi, liliba tsa ho noa, jj.

Epdm

Rubber ea Ethylene (PPO) e entsoe ka copolymer ho tloha ho Ethylene le propylene ho ea ketaneng e kholo 'me e na le khanyetso e ntle ea mocheso, khanyetso ea botsofali, khanyetso ea ozone le botsitso, empa e ke ke ea eketsoa sebabole. Ho rarolla bothata bona, karolo e nyane ea karolo ea boraro e nang le ketaneng e habeli e kenngoa ketaneng e kholo ea EP, e ka thehoang ka ho eketsa sebabole ho EPDM. Mocheso o akaretsang ke -50~150 ℃. Khanyetso e ntle haholo ho li-solvents tsa polar tse kang joala, ketone, glycol le phosphate lipid hydraulic fluids.

Melemo:

· Ho hanyetsa boemo ba leholimo hantle le ho hanyetsa ozone

· Ho hanyetsa metsi hantle le ho hanyetsa lik'hemik'hale

· Li-alcohol le li-ketone li ka sebelisoa

· Ho hanyetsa mouoane mochesong o phahameng, ho se kenelle hantle ha khase

Mathata:

· Ha e kgothaletswe ho sebediswa dijong kapa ho pepesehela haeterojene e nkhang hamonate. · E kwahela tikoloho ya mouwane wa metsi e nang le mocheso o phahameng.

· Litiiso kapa likarolo tsa lisebelisoa tsa kamore ea ho hlapela.

· Likarolo tsa rabara tsamaisong ea ho brake (ho brake).

· Litiiso ka har'a li-radiator (litanka tsa metsi tsa koloi).