Xɔtumɔ̃wo ƒe tsi ƒe ʋuʋu ɖoɖo le akpa veviwo abe gearbox torque converter (si woyɔna be eve tɔtrɔ) kple dɔwɔwɔ ƒe akpa hadrolik ɖoɖo le mɔ geɖe megbe valvɔ kple O-ring kple nutrenu bubuwo, wo dometɔ akpa gãtɔ wozã fluorine rababa (FKM) na nutrenu nu la si ami ƒe tsitretsitsi nyui, abrasion tsitretsitsi kple tsitretsitsi ɖe dzoxɔxɔ gã kple bubuawo, be woaxe mɔ ɖe enu leakage le ɖoɖoa me, na ɖoɖoa ƒe anyinɔnɔ nanyo ɖe edzi la ɖo ŋusẽkpɔɖeamedzi aɖe gbɔ. Gake le nutrenu mawo ƒe anyinɔnɔ ta la, asixɔxɔ gã, ami ƒe tsitretsitsi nyuie na rancidity ƒe gbegblẽ, vuvɔ ƒe tsitretsitsi kple nu gbegblẽ bubuwo, si wɔnɛ be nusi wowɔ ƒe asi dzina ɖe edzi, eye wòkpɔa ŋusẽ ɖe nusi wodzra dzi, eyata ehiã be woadi nutrenu si me ga menɔa anyi o eye wònɔa anyi didina ɖe nutrenu si li fifia teƒe.
HNBR Kple Eƒe Nɔnɔmewo
HNBR nye elastomer ƒomevi yeye aɖe si me ami mete ŋu gena ɖo o si Nippon Zeon to vɛ le ƒe 1984 me, si woto vɛ be woatsɔ akpɔ rababa ƒe nuzazãwo ƒe hiahiã kpata le nɔnɔme sesẽwo me le ʋudɔwɔƒewo gbɔ. Enye ami ƒe tsitretsitsi nyuitɔ kekeake le nitrile rababa (kɔda ŋkɔ NBR) molecule wɔwɔme ƒe carbon-carbon double bond selectively hydrogenated (saturated) dɔwɔwɔ le molecule ƒe wɔwɔme ƒe tɔtrɔ, tɔtrɔ NBR dzoxɔxɔ-tsitretsitsi, maroon atike liƒo ƒe gbɔdzɔgbɔdzɔ ƒe ame dahewo, kple ŋusẽ nyuitɔ kekeake kple tsitretsitsi ɖe dzoxɔxɔ kɔkɔ kple bɔbɔe, tsitretsitsi ɖe ami kple atikewo ƒe nyadzɔdzɔgblɔmɔnuwo abe tsitretsitsi ɖe dɔwɔwɔ ɖedzesi, etɔxɛ eye wòda sɔ ŋutɔ. Le ɣeyiɣi ma ke me la, eléa NBR ƒe nudodo ƒe tsitretsitsi kple dɔwɔwɔ nyuie me ɖe asi. Ne wotsɔe sɔ kple FKM kple NBR
HNBR ƒe dɔwɔwɔ ƒe nɔnɔme veviwoe nye esiawo:
(1) Dzoxɔxɔ ƒe tɔtrɔ ɖe nɔnɔmewo ŋu: Woate ŋu azã HNBR ɣeyiɣi didi aɖe le l50 °C , ɣeyiɣi kpui aɖe ƒe dzoxɔxɔ zazã vaseɖe l75 °C.
HNBR, ate ŋu azãe ɣeyiɣi didi aɖe le 230 °C , ɣeyiɣi kpui aɖe ƒe dzoxɔxɔ zazã vaseɖe 300 °C . HNBR ƒe dzoxɔxɔ ƒe tsitretsitsi le NBR kple FKM dome, gake le dzoxɔxɔ ƒe tsitretsitsi si bɔbɔ gome la, FKM ƒe vuvɔ ƒe tsitretsitsi menyo o (-15 °C si le bɔbɔe be wòagbã gbagbã); eye HNBR wɔa dɔ nyuie ŋutɔ le dzoxɔxɔ si bɔbɔ me, eye wòdaa asɔ nyuie le ami ƒe tsitretsitsi dome
(2) Dzɔdzɔmeŋusẽ kple mɔ̃ɖaŋununya ƒe nɔnɔmewo: rababa si te ŋu nɔa te ɖe ami nu ƒe akpa gãtɔ le esi eƒe tensile ŋusẽ bɔbɔ ta, eyata eɖoa seɖoƒe na eƒe dɔwɔwɔ ƒe lolome, abe FKM tensile strength si nye 19.6-21.6MPa, HNBR ƒe ŋusẽ wu NBR, ACMXNBR, EPDM kple FKM kple rababa ƒomevi bubuwo lolo wu, abe Zeon ZSC hydrogenated nitrile butadiene ene rubber tensile strength up to 6OMPa vevietɔ wu la, HNBR le dzoxɔxɔ gã me ( Vevietɔ wu la, HNBR le dzoxɔxɔ gã ( 15O °C ) te le ŋusẽ ( 14.7-29.4MPa ) kple xɔme dzoxɔxɔ NBR be woalé dzidzenu ɖeka me ɖe asi le dzoxɔxɔ gã me le ami sesẽ vovovowo kple atikewo ƒe nyadzɔdzɔgblɔmɔnuwo me ate ŋu alé mɔ̃ɖaŋununya ƒe nɔnɔme nyuitɔwo, dzoxɔxɔ gã kple mɔ̃ɖaŋununya ƒe nɔnɔmewo me ɖe asi kokoko nyo wu akpa gãtɔ le elastic ah ŋutilã, nyui abrasion tsitretsitsi To alesi sɔ
Mɔ̃ɖaŋununya ƒe ƒuƒoƒo, àte ŋu akpɔ dzoxɔxɔ gã ƒe nutete tegbee deformation dɔwɔwɔ nyuitɔ kekeake, eye FKM ƒe dɔwɔwɔ sia menyo nenema o.
(3) atikewo ƒe nyadzɔdzɔgblɔmɔnuwo ƒe tsitretsitsi: HNBR ƒe ami ƒe tsitretsitsi nyuie le dzoxɔxɔ gã me, te ŋu nɔa te ɖe ami vovovo siwo me tsi le, ami si me wotsɔa nu vovovowo kpena ɖo, ami sesẽ siwo gblẽa nu le oxidizing oils kple ga slag ƒe dɔwɔwɔ ŋu, eye wòte ŋu nɔa te ɖe ozone nu nyuie ŋutɔ, dzoxɔxɔ gã ƒe keklẽŋusẽ kple tsi dzodzoe te ŋu nɔa te ɖe enu.
Tso HNBR ƒe nɔnɔme siwo le etame nu la, ne wotsɔe sɔ kple FKM la, tsãtɔ ƒe dɔwɔwɔ bliboa nyo wu, FKM, togbɔ be le dzoxɔxɔ ƒe tsitretsitsi, ami ƒe tsitretsitsi, tsitretsitsi ɖe dzobibi ƒe ami ŋu nyo wu HNBR hã, gake HNBR le dɔwɔwɔ ƒe dzoxɔxɔ me le mɔ̃ɖaŋununya ƒe nɔnɔme siwo le dzoxɔxɔ ƒe tsitretsitsi ŋu, tsitretsitsi ɖe ami ƒe kpeɖeŋutɔwo ŋu, tsitretsitsi ɖe oxidation kple rancidity ƒe gbegblẽ ŋu le amia kple atike bubuwo me nunɔamesiwo, abe esiwo de ŋgɔ wu FKM ene. Gakpe ɖe eŋu la, FKM le ewɔwɔ kple aŋɔwɔwɔ ƒe ɖoɖoa me le esi nusi wotsɔ wɔe, nusiwo wotsɔ wɔe kple nusiwo wowɔ ƒe dɔwɔwɔ ƒe ʋeʋẽ manyomanyo ta la meli ke o, eyata eƒe gazazã. Gakpe ɖe eŋu la, FKM xɔ asi wu le nuwo wɔwɔ kple wo wɔwɔ me le nusiwo ƒe sisi nyuie o, nusiwo wotsɔ wɔe siwo meli ke o kple nusiwo wowɔ ƒe dɔwɔwɔ ta, esime HNBR ya mexɔ asi boo o wu FKM le nusiwo wotsɔ wɔe kple wo ŋudɔwɔwɔ nyuie, dɔwɔwɔ si li ke kple asi si bɔbɔ ta.
HNBR ƒe dɔwɔwɔ ƒe nɔnɔme kple eƒe dɔwɔwɔ le xɔtumɔ̃wo me me dzodzro
Le HNBR ƒe dɔwɔwɔ bliboe nyuie ta la, wozãe geɖe le go geɖe me tsɔ xɔ ɖe FKM teƒe le dutadukɔwo me: wozãe le ʋudɔwɔƒewo tsɔ wɔ ʋu ƒe crankshaft ŋgɔgbe kple megbe kpakple gearbox oil seals, H-ƒomevi shaft seals, seals na fuel injection system, piston cylinder vibration damping seals, carburetor O-rings, kple bubuawo; eye le gaŋutinunya me la, wozãnɛ le gaŋutinunya ƒe fli kɔkɔ-ʋuʋudedi ƒe asike ƒe didime ƒe axa eve ƒe nutrenuwo wɔwɔ me, kple nutrenu siwo wotsɔ wɔa tsilindo siwo ƒe nɔnɔme le abe fesre ene le aƒeme mɔ̃ si wotsɔna ƒua gbe ɖaa me; eye le amikuƒewo la, wozãnɛ le amikuƒewo wɔwɔ me, kple nutrenuwo na amikuƒewo wɔwɔ. Le amikuƒe dɔwɔƒewo la, wozãa wo tsɔ wɔa seal of drill bit protector na drilling wellhead sealing, ami plug pump sealing, kple bubuawo.
Le agbatsɔʋuwo kple xɔtumɔ̃ bubuwo gome la, eƒe hadrolik-ʋuʋudedi ƒe akpawo abe gearboxwo, torque converter ememe normal operating temperature theoretically 8O-90 °C , kɔkɔtɔ mewu 120 °C o , gake abe gaƒoƒo didi siwo wotsɔ agba si gbɔ eme ƒe dɔwɔwɔ ene. Vaseɖe alo esi wu 130 °C gɔ̃ hã ememe tsatsam si me tsi si ƒe dzoxɔxɔ lolo ƒe gbegblẽ kple gbegblẽ le ɣeyiɣi aɖe megbe, esime ga ƒe akpa siwo le ga ƒe akpa aɖewo (ga ƒe akpawo ƒe ʋuʋu kple ga ƒe dɔwɔwɔ ƒe ɣeyiɣi si gena ɖe dɔwɔwɔ me) le ami dzodzoe si ƒe dzoxɔxɔ gã si nutrenuawo ʋãna si nutrenuawo ƒe ŋusẽkpɔɖeamedzi hena vɛ, si toa esia dzi kpɔa ŋusẽ ɖe nutrenuawo ƒe agbenɔƒe dzi.
Eyata woateŋu azã HNBR le dzoxɔxɔ gã ƒe ŋusẽ, dzoxɔxɔ si bɔbɔ ƒe tsitretsitsi, dzoxɔxɔ gã ƒe nutete tegbee deformation, oxidation kple acid ƒe gbegblẽ le ami kple ga sludge dɔwɔwɔ kple akpa bubuwo ƒe asixɔxɔ ƒe viɖe siwo woɖe fia, kple eƒe ɖɔliɖɔli fifia FKM nutrenu, evea siaa be woana subɔsubɔ agbenɔƒe nanyo ɖe edzi le nutrenuawo, gake hã aɖe zi nenie woɖɔli dɔwɔwɔ medium eye FKM ƒe dzoxɔxɔ si nu sẽ ƒe tsitretsitsi le sue akpa ŋutɔ. Le xɔtumɔ̃wo ƒe dɔwɔwɔ ƒe mɔ̃ hadrolik ɖoɖo, ɖoɖoa ƒe dɔwɔwɔ ƒe nyaƒoɖeamenu nye zi geɖe 16MPa (nye nyaƒoɖeamenu gã ɖoɖo), dɔwɔwɔ medium (HM46 alo HM32 hadrolik ami) ƒe dɔwɔwɔ ƒe dzoxɔxɔ si sɔ si nye 45-55 °C , le dɔwɔwɔ ƒe nɔnɔme siwo le mɔ̃a me ta la, menyo o, tsɔ kpe ɖe dɔwɔwɔ si mesɔ o si zãla la wɔna kpakple le ganyawo ƒe viɖe siwo le agba si wu tsɔtsɔ me yometiti ta, nye prone to make the hydraulic system flow oil temperature Ewu seɖoƒe sia, si wɔnɛ be hadrolik-mi ƒe gbegblẽ.
Tsɔ kpe ɖe eŋu la, hadrolik-ɖoɖoa ƒe akpa siwo le ʋuʋu sesĩe (hadrolik pɔmpi) kple ʋuʋu yi megbe enuenu (hadrolik cylinder piston rod kple mɔ geɖe megbe valvɔ stem) hã wɔa ga slag kple ami ƒe gbegblẽ, nutrenuawo hã tsoa ʋuʋudedi ƒe ŋusẽkpɔɖeamedzi gbɔ, ɖoɖoa ƒe kpododonu bubu siwo tso nyaƒoɖeamenu dzi ɖeɖe kpɔtɔ kple nyaƒoɖeamenu ƒe bu kpata gɔ̃ hã, nye nutrenuawo kpɔa ŋusẽ gbegblẽ ɖe NBR ƒe hatsotso ƒe nutrenu siwo li fifia dzi, le eƒe tensile ŋusẽ kple tsitretsitsi ɖe ami ƒe nɔnɔmewo ƒe gbegblẽ ŋu Le NBR nutrenu siwo li fifia gome la, le eƒe tensile ŋusẽ kple tsitretsitsi ɖe ami ƒe gbegblẽ ŋu ta eye wòle bɔbɔe ŋutɔ be woado kpo nu, le HNBR ƒe ŋusẽ ta, nyuie hayahaya, le akpa aɖe me la, nyaƒoɖeamenu si bu kpata ɖe nutrenuawo ƒe dɔwɔwɔ dzi mekpɔa ŋusẽ boo aɖeke ɖe edzi o, eyata le hydraulic system of cylinders, pumps, valves, kple hydraulic components bubuwo le HNBR seals zazã me ate ŋu ana sealing effect kple service life nanyo ɖe edzi ŋutɔ.
