Irabha yokwenziwa ingenye yezinto ezintathu ezinkulu zokwenziwa futhi isetshenziswa kabanzi ezicini ezahlukene zemboni, ukuvikela izwe, ezokuthutha kanye nokuphila kwansuku zonke. Irabha yokwenziwa esebenza kahle futhi esebenzayo iyinto eyisisekelo ethuthukisiwe edingekayo ekuthuthukisweni kwenkathi entsha, futhi futhi iyinsiza ebalulekile yesu ezweni.
Izinto zerabha ezikhethekile zokwenziwa zibhekisela ezintweni zerabha ezihlukile ezintweni zerabha ezijwayelekile futhi ezinezakhiwo ezikhethekile njengokumelana nokushisa okuphezulu nokuphansi, ukumelana nokuguga, ukumelana nokususwa kwemfucuza, kanye nokumelana namakhemikhali, ikakhulukazi irabha ye-nitrile ene-hydrogenated (HNBR), i-thermoplastic vulcanizate (TPV), irabha ye-Silicone, irabha ye-fluorine, irabha ye-fluorosilicone, irabha ye-acrylate, njll. Ngenxa yezakhiwo zayo ezikhethekile, izinto zerabha ezikhethekile sezibe yizinto ezibalulekile ekuthuthukisweni kwamasu amakhulu kazwelonke kanye nezinkambu ezisafufusa njengezindiza, ukuvikela kwezwe kanye nemboni yezempi, ulwazi lwe-elekthronikhi, amandla, imvelo, kanye nolwandle.
1. Irabha ye-nitrile ene-hydrogenated (HNBR)
Irabha ye-nitrile ene-hydrogen iyinto yerabha egcwele kakhulu etholakala ngokukhetha i-hydrogenation yamayunithi e-butadiene ku-chain yerabha ye-nitrile ngenhloso yokuthuthukisa ukumelana nokushisa kanye nokumelana nokuguga kwerabha ye-nitrile butadiene (NBR). , isici sayo esiyinhloko ukuthi ingasetshenziswa isikhathi eside ku-150 ℃, futhi isakwazi ukugcina izakhiwo eziphezulu zomzimba nezemishini ekushiseni okuphezulu, okungahlangabezana nezidingo ezikhethekile zokumelana nokushisa okuphezulu kanye nokumelana namakhemikhali kwezinto ezimotweni, ezindizayo, ensimini kawoyela nakwezinye izinkambu. Izidingo, ezisetshenziswa kabanzi, njengezimbozo zikawoyela zezimoto, izingxenye zesistimu kaphethiloli, amabhande okudlulisa izimoto, amabhokisi okubhoboza kanye nama-piston odaka, ama-rollers erabha okunyathelisa kanye nendwangu, izimbozo zezindiza, izinto zokumunca ukushaqeka, njll.
2. I-Thermoplastic Vulcanizate (TPV)
Ama-vulcanizate e-Thermoplastic, afushaniswe ngokuthi ama-TPV, ayiklasi elikhethekile lama-elastomer e-thermoplastic akhiqizwa yi-"dynamic vulcanization" yezingxube ezingaxubeki ze-thermoplastics nama-elastomer, okungukuthi ukukhethwa kwesigaba se-elastomer ngesikhathi sokuxubana kokuncibilika ne-thermoplastic Sexual cross-linking. Ukuxubana ngesikhathi esisodwa kwesigaba serabha lapho kukhona i-agent yokuxhumanisa (mhlawumbe ama-peroxides, ama-diamines, ama-accelerator esibabule, njll.) ngesikhathi sokuxubana kokuncibilika ne-thermoplastics kuphumela ku-dynamic vulcanizate continuous thermoplastic matrix eyakhiwe irabha ehlanganisiwe ehlakazekile. Izinhlayiya esigabeni, i-dynamic vulcanization iholela ekwandeni kwe-viscosity yerabha, okukhuthaza ukuguqulwa kwesigaba futhi kuhlinzeke ngesimo se-multiphase ku-TPV. I-TPV inokusebenza okufana nerabha yokusetha ukushisa kanye nesivinini sokucubungula ama-thermoplastic, abonakala kakhulu ngesilinganiso sokusebenza okuphezulu/intengo, ukwakheka okuguquguqukayo, isisindo esincane, ububanzi bokushisa bokusebenza obubanzi, ukucubungula okulula, ikhwalithi yomkhiqizo kanye nokuqina kobukhulu Futhi ingaphinde isetshenziswe, isetshenziswa kabanzi ezingxenyeni zezimoto, ukwakhiwa kwamandla, izivalo kanye neminye imikhakha.
3. Irabha ye-silicone
Irabha ye-silicone uhlobo olukhethekile lwerabha yokwenziwa eyenziwe nge-polysiloxane eqondile exutshwe nama-filler okuqinisa, ama-filler asebenzayo kanye nezithasiselo, futhi iba yi-elastomer efana nenethiwekhi ngemva kokuhlanganiswa ngaphansi kwezimo zokushisa nengcindezi. Inokumelana okuhle kakhulu nokushisa okuphezulu nokuphansi, ukumelana nesimo sezulu, ukumelana ne-ozone, ukumelana ne-arc, ukufudumala kukagesi, ukumelana nomswakama, ukungena komoya okuphezulu kanye ne-inertia yomzimba. Inezinhlobo eziningi zezicelo embonini yesimanje, kagesi kanye nogesi, yezimoto, yokwakha, yezokwelapha, yokunakekelwa komuntu siqu kanye neminye imikhakha, futhi isibe yinto ebaluleke kakhulu yokusebenza okuphezulu embonini yezindiza, yezokuvikela kanye neyamasosha, yokukhiqiza ehlakaniphile kanye neminye imikhakha.
4. Irabha ye-fluorine
Irabha ye-fluorine ibhekisela ezintweni zerabha eziqukethe i-fluorine eziqukethe ama-athomu e-fluorine kuma-athomu e-carbon eketanga eliyinhloko noma amaketanga aseceleni. Izakhiwo zayo ezikhethekile zinqunywa izici zesakhiwo sama-athomu e-fluorine. Irabha ye-fluorine ingasetshenziswa ku-250°C isikhathi eside, futhi izinga lokushisa eliphezulu lenkonzo lingafinyelela ku-300°C, kuyilapho izinga lokushisa elilinganiselwe lenkonzo ye-EPDM yendabuko kanye nerabha ye-butyl lingu-150°C kuphela. Ngaphezu kokumelana nokushisa okuphezulu, i-fluororubber inokumelana okuhle kakhulu kwamafutha, ukumelana namakhemikhali, ukumelana ne-asidi kanye ne-alkali, futhi ukusebenza kwayo okuphelele kungcono kakhulu kuzo zonke izinto zerabha ze-elastomer. Isetshenziswa kakhulu ekumelaneni nowoyela kwamarokhethi, ama-missile, izindiza, imikhumbi, izimoto nezinye izimoto. Izinkambu zezinhloso ezikhethekile ezifana nokuvala kanye namapayipi amelana nowoyela ziyizinto ezibalulekile emnothweni wezwe kanye nezimboni zokuvikela zezwe kanye nezempi.
5. Irabha ye-acrylate (i-ACM)
Irabha ye-acrylate (ACM) iyi-elastomer etholakala nge-copolymerization ye-acrylate njenge-monomer eyinhloko. Iketanga layo eliyinhloko liyiketanga lekhabhoni eligcwele, futhi amaqembu alo aseceleni angamaqembu e-polar ester. Ngenxa yesakhiwo sayo esikhethekile, inezici eziningi ezinhle kakhulu, njengokumelana nokushisa, ukumelana nokuguga, ukumelana nowoyela, ukumelana ne-ozone, ukumelana ne-UV, njll., izakhiwo zayo zemishini kanye nezakhiwo zokucubungula zingcono kunerabha ye-fluororubber ne-silicone, futhi ukumelana kwayo nokushisa, ukumelana nokuguga kanye nokumelana nowoyela kuhle kakhulu. I-ACM isetshenziswa kabanzi ezindaweni ezahlukahlukene zokushisa okuphezulu kanye nezingamelani nowoyela, futhi isibe yinto yokuvala eyakhiwe futhi yakhuthazwa imboni yezimoto eminyakeni yamuva.
Isikhathi sokuthunyelwe: Septhemba-27-2022
