Imashini zubaka hydraulic sisitemu yo gukwirakwiza mubice byingenzi nka gearbox torque ihindura (byitwa impinduka ebyiri) hamwe na hydraulic ya sisitemu yumurimo muburyo butandukanye bwo guhinduranya valve hamwe na O-ring hamwe nibindi bimenyetso, inyinshi murizo zagiye zikoreshwa na reberi ya fluor (FKM) kugirango ushireho ibikoresho bifite uburyo bwiza bwo kurwanya amavuta, kurwanya ubukana bwa sisitemu hamwe no guhangana nubushyuhe bwo hejuru kandi nibindi. Nyamara, kubera ko hariho kashe nk'iyo, igiciro cyinshi, kutarwanya nabi kwangirika kwa peteroli, kurwanya ubukonje nibindi bintu bibi, bigatuma igiciro cyibicuruzwa cyiyongera, kandi bikagira ingaruka ku igurishwa ryibicuruzwa, bityo rero birakenewe ko dushakisha ibikoresho byubukungu kandi biramba aho gufunga ibikoresho bisanzwe.
HNBR nibyiza byayo
HNBR ni ubwoko bushya bwa elastomer idashobora kwihanganira amavuta yatangijwe na Nippon Zeon mu 1984, yakozwe kugirango ikemure byihutirwa ibikoresho bya reberi mu bihe bigoye mu nganda z’imodoka. Nibintu byiza cyane birwanya amavuta ya nitrile reberi (code code NBR) imiterere ya molekuline yububiko bwa karubone-karubone ihujwe na hydrogène (yuzuye) itunganya imiterere ya molekile yimpinduka, ihindura ubushyuhe bwa NBR, irwanya imiti ya marone yintege nke zabakene, hamwe nimbaraga zidasanzwe no kurwanya ubushyuhe bwo hejuru kandi buke, kurwanya amavuta nibitangazamakuru byimiti nko kurwanya imikorere idasanzwe, idasanzwe kandi iringaniye cyane. Mugihe kimwe gikomeza kwambara neza no gutunganya NBR. Ugereranije na FKM na NBR
Ibikorwa nyamukuru bya HNBR ni ibi bikurikira:
(1) Guhuza n'ubushyuhe: HNBR irashobora gukoreshwa igihe kirekire kuri l50 ℃ , gukoresha igihe gito ubushyuhe bugera kuri l75 ℃.
HNBR, irashobora gukoreshwa igihe kirekire kuri 230 ℃ , gukoresha igihe gito ubushyuhe bugera kuri 300 ℃ . HNBR irwanya ubushyuhe hagati ya NBR na FKM, ariko kubijyanye nubushyuhe buke, ubukonje bwa FKM ni bubi (-15 ℃ byoroshye kuvunika); na HNBR ifite imikorere yubushyuhe buke cyane, hamwe nuburinganire bwiza hagati yo kurwanya amavuta
. ubushyuhe bwo hejuru (Icy'ingenzi, HNBR ku bushyuhe bwo hejuru (15O ℃) munsi yimbaraga (14.7-29.4MPa) hamwe nubushyuhe bwicyumba NBR kugirango igumane urwego rumwe mubushyuhe bwinshi mumavuta atandukanye hamwe nibitangazamakuru bya chimique birashobora gukomeza kugumana imiterere yubukanishi bwiza, ubushyuhe bwo hejuru bwumubiri nubukanishi nibyiza kuruta byinshi . mubindi umubiri wa elastike ah, kurwanya abrasion
Gukomatanya ikoranabuhanga, urashobora kubona uburyo bwiza bwo hejuru-ubushyuhe bwo guhagarika imikorere ihoraho, kandi iyi mikorere ya FKM ntabwo ari nziza.
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Duhereye ku bintu byavuzwe haruguru biranga HNBR, ugereranije na FKM, ibikorwa byahoze byiza muri rusange, FKM, nubwo mu kurwanya ubushyuhe, kurwanya amavuta, kurwanya amavuta yaka aruta HNBR, ariko HNBR mu bushyuhe bwakazi bwimiterere yimashini zikoreshwa mukurwanya amavuta, kurwanya ibiyongeramo amavuta, kurwanya okiside no kwangirika kwamavuta hamwe nibindi bintu bya chimique, nka FK. Byongeye kandi, FKM mubikorwa byo gukora no kubumba bitewe nubworoherane bwibikoresho, ibikoresho fatizo nibikorwa byibicuruzwa ntabwo bihagaze neza, bityo ikiguzi cyacyo. Byongeye kandi, FKM ihenze cyane mugikorwa cyo gukora no kubumba bitewe n’ibikoresho bitagenda neza, ibikoresho fatizo bitajegajega n’imikorere y’ibicuruzwa, mu gihe HNBR ihenze cyane ugereranije na FKM kubera kubumba ibintu neza no kuyitunganya, imikorere ihamye ndetse n’igiciro gito.
Imiterere ya HNBR hamwe nisesengura ryikoreshwa ryimashini zubaka
Bitewe n’imikorere myiza ya HNBR, yakoreshejwe cyane mubice byinshi kugirango isimbure FKM mubihugu byamahanga: yakoreshejwe mu nganda z’imodoka mu gukora imashini yimodoka imbere ninyuma hamwe na kashe ya peteroli ya gare, kashe ya H yo mu bwoko bwa H, kashe ya sisitemu yo gutera ibitoro, kashe ya pisitori ya O-impeta, nibindi; no mu nganda zibyuma, bikoreshwa mugukora metallurgie yumurongo wo hejuru uzunguruka urusyo rwa diametre kashe mpande zombi, hamwe na kashe ya silinderi imeze nkabafana mumashini ikomeza yo murugo; no mu nganda za peteroli, ikoreshwa mugukora ibyuma byo gucukura, hamwe na kashe yo gucukura. Mu nganda zikomoka kuri peteroli, zikoreshwa mugukora kashe ya drite bit kurinda kurinda gucukura amariba, gufunga pompe yamavuta, nibindi.
Kubatwara nizindi mashini zubaka, ibice byayo byohereza hydraulic nka bokisi ya bokisi, moteri ya torque ihinduranya imbere yubushyuhe busanzwe bwo gukora 8O-90 ℃ , hejuru ntishobora kurenga 120 but , ariko nkamasaha menshi yakazi karemereye. Kugera cyangwa kurenza 130 cycle cyimbere yimbere yubushyuhe bwo hejuru bwo kwangirika no kwangirika mugihe, mugihe ibice byicyuma cyicyuma (meshing igenda yibice byicyuma hamwe nigihe cyo gukora cyogosha ibyuma bigwa muburyo bukora) mumavuta ashyushye yubushyuhe butwarwa na kashe yatewe ningaruka za kashe, bityo bikagira ingaruka kumibereho ya kashe.
Kubwibyo, HNBR irashobora gukoreshwa mububasha bwo hejuru bwubushyuhe, kurwanya ubushyuhe buke, kugabanuka kwubushyuhe bwo hejuru guhindagurika, okiside hamwe no kwangirika kwa acide kumikorere ya peteroli nicyuma hamwe nibindi bice byigiciro cyibyiza byerekanwe, hamwe no gusimbuza kashe ya FKM iriho ubu, byombi kugirango ubuzima bwa serivisi bumenyekane, ariko kandi bigabanya inshuro zo gusimbuza uburyo bukora; n'ubushyuhe bwo hejuru bwo kurwanya FKM ni nto cyane. Kubikoresho byimashini zubaka zikoresha hydraulic sisitemu, umuvuduko wakazi wa sisitemu ni 16MPa (ni sisitemu yumuvuduko ukabije), uburyo bukora (HM46 cyangwa HM32 amavuta ya hydraulic) yubushyuhe busanzwe bwa 45-55 ℃ , bitewe nuburyo imikorere yiki gikoresho ikennye, ijyanye nibikorwa bidakwiye byumukoresha kimwe no gukurikirana inyungu zubukungu ziterwa no gutwarwa nubushyuhe bukabije bwamavuta, kwangirika kw'amavuta ya hydraulic.
Byongeye kandi, ibice bigize sisitemu ya hydraulic yibice byihuta byihuta (pompe hydraulic) hamwe no kunyerera kenshi (hydraulic silinder piston inkoni hamwe ninzira nyabagendwa ihinduranya valve valve stem) nayo itanga icyuma cyuma no kwangirika kwamavuta, kashe nayo iterwa ningaruka ziterwa no guterana, sisitemu nizindi ngaruka ziterwa no kugabanuka kwumuvuduko wa N imbaraga zingana no kurwanya kwangirika kwimitungo ya peteroli Kubidodo bya NBR bihari, kubera imbaraga zayo zikaze no kurwanya kwangirika kwamavuta kandi byoroshye kunanirwa, bitewe nimbaraga za HNBR, gukira neza, mubice bimwe byo gutakaza gitunguranye kumikorere ya kashe bigira ingaruka nke, kuburyo muri sisitemu ya hydraulic ya sisitemu ya hydrulike, pompe, valide, hamwe na hydraulic sisitemu ya hydraulic, pompe, valve n'ubuzima bwa serivisi.
