Michina yekuvaka hydraulic transmission system muzvikamu zvikuru senge gearbox torque converter (inonzi shanduko yakapetwa kaviri) uye yebasa unit hydraulic system mune yakawanda-nzira inodzosera vharafu ine O-mhete uye zvimwe zvisimbiso, mazhinji acho akashandiswa fluorine rabha (FKM) yekuisa chisimbiso chisimbiso chine mafuta akanaka kuramba, abrasion kuramba uye kudzivirira system, kuvandudza tembiricha, kuvandudza tembiricha. durability yakawana imwe mhedzisiro. Nekudaro, nekuda kwekuvapo kwezvisimbiso zvakadaro, mutengo wakakwira, kushomeka kushomeka kwekuora kwemafuta, kutonhora kupikisa uye zvimwe zvinhu zvisina kunaka, zvichiita kuti mutengo wechigadzirwa uwedzere, uye unokanganisa kutengeswa kwechigadzirwa, saka zvinodikanwa kutsvaga hupfumi uye hwakasimba hwekuvharisa zvinhu panzvimbo peiyo iripo yekuisa chisimbiso.
HNBR uye Zvivakwa Zvayo
HNBR rudzi rutsva rwe elastomer isingadzivirirwe neoiri yakaunzwa neNippon Zeon muna 1984, iyo yakagadziridzwa kuti isangane nekuchimbidza kudiwa kwekuiswa kwerabha pasi pemamiriro akaomarara muindasitiri yemotokari. Ndiyo yakanakisa kupikisa mafuta yenitrile rabha (code zita NBR) mamolecular chimiro checarbon-carbon double bond selectively hydrogenated (saturated) processing of the molecular structure of the change, shandura NBR inodzivirira kupisa, maroon chemical kugadzikana kwekushaya simba kwevarombo, nesimba rakanyanyisa uye kuramba kutonhora kwepamusoro uye kwakaderera, kuramba mafuta nemakemikari midhiya senge kuramba uye kusarudzika kuita. Panguva imwecheteyo inochengetedza yakanakisa kupfeka kuramba uye processability yeNBR. Kuenzaniswa neFKM neNBR
HNBR maitiro makuru ekuita ndeaya anotevera:
(1) Kuchinja kwekushisa: HNBR inogona kushandiswa kwenguva yakareba pal50 ℃ , kushandiswa kwenguva pfupi kwekushisa kusvika l75 ℃.
HNBR, inogona kushandiswa kwenguva yakareba pa230 ℃ , kushandiswa kwenguva pfupi kwekushisa kusvika ku300 ℃ . HNBR kupisa kwekudzivirira pakati peNBR neFKM, asi maererano nekushomeka kwekushisa kwekushisa, FKM yekudzivirira kutonhora kwakashata (-15 ℃ iyo iri nyore kuputsika); uye HNBR ine yakanakisa yakaderera-tembiricha kuita, ine chiyero chakanaka pakati pemafuta kuramba
(2) Physical and mechanical properties: rabha yakawanda inodzivirira mafuta nekuda kwekuderera kwesimba rayo, saka inogadzirisa chiyero chekushanda kwayo, seFKM tensile simba re19.6-21.6MPa, HNBR simba kupfuura NBR, ACMXNBR, EPDM neFKM uye mamwe marudzi erubha akakwirira, akadai sehydrogendiene nitrile ye Zeon ZSC 6OMPa inonyanya kukosha, iyo HNBR pakupisa kwakanyanya (Kunyanya kukosha, HNBR pakupisa kwepamusoro (15O ℃ ) pasi pesimba (14.7-29.4MPa) uye tembiricha yekamuri NBR kuchengetedza mwero wakafanana pakupisa kwepamusoro mumafuta akasiyana-siyana akaomarara uye makemikari media anogona kuramba achichengetedza akanakisa michina, tembiricha yakakwira yemuviri uye yemagetsi, kuburikidza nehumwe hunhu hwakanaka hwemabrasion huri nani kupfuura huzhinji hwemabrasion.
Musanganiswa wetekinoroji, unogona kuwana yakanakisa-tembiricha yekumanikidza zvachose deformation kuita, uye kuita uku kweFKM hakuna kunaka.
(3) makemikari media kuramba: HNBR ine yakanakisa kupikisa mafuta pakupisa kwakanyanya, kuramba kune akasiyana siyana ekuzora mafuta ehydraulic, mafuta emafuta ane akasiyana ekuwedzera, akasimba ekuora oxidizing oiri uye simbi slag kuita, uye ine yakanakisa ozone kuramba, yakakwirira-tembiricha radiation kuramba uye kupisa kwemvura.
Kubva pane zviri pamusoro hunhu hweHNBR, zvichienzaniswa neFKM, iyo yaimbova nani kuita kwese, FKM, kunyangwe mukupisa kupisa, kuramba kwemafuta, kuramba mafuta ekupisa kuri nani pane HNBR, asi HNBR mukupisa kwekushanda kwemagetsi emagetsi ekupikisa kwemhepo, kuramba kune zvinowedzerwa oiri, kuramba oxidation uye rancidity kuderera kwemafuta uye mamwe makemikari epamusoro eFM. Pamusoro pezvo, iyo FKM mukugadzira uye kuumba maitiro nekuda kwekushata kwemvura yezvinhu, mbishi uye kuita kwechigadzirwa hakuna kugadzikana, saka mutengo wayo. Pamusoro pezvo, FKM inodhura zvakanyanya mukugadzira nekuumbwa nekuda kwekushaikwa kwezvinhu kuyerera, kusagadzikana kwezvinhu zvekushandisa uye kuita kwechigadzirwa, nepo HNBR isingadhure kupfuura FKM nekuda kwekunaka kwezvinhu uye kugadzirisa, kuita kwakagadzikana uye mutengo wakaderera.
Chimiro chekushandisa cheHNBR uye kuongororwa kwekushandiswa kwayo mumichina yekuvaka
Nekuda kwekuita kwakanakisa kweHNBR, yakashandiswa zvakanyanya muzvinhu zvakawanda kutsiva FKM munyika dzekunze: yakashandiswa muindasitiri yemotokari kugadzira mota crankshaft kumberi nekumashure uye gearbox oiri seals, H-mhando shaft zvisimbiso, zvisimbiso zvemafuta jekiseni system, piston cylinder vibration damping seals, carburing , carbure uye muindasitiri yemetallurgical, inoshandiswa mukugadzira metallurgy yakakwirira-line inotenderedza mill axle diameter yakapetwa kaviri-sided zvisimbiso, uye zvisimbiso zvemasilinda akaita sefan mumuchina unoramba uchikanda muchina; uye muindasitiri yemafuta, inoshandiswa mukugadzira michina yekuchera, uye zvisimbiso zvekuchera. Muindasitiri yemafuta, anoshandiswa kugadzira chisimbiso chekudzivirira dhizaini yekudhirowa chisimbiso chemusoro, mafuta plug pombi yekuisa chisimbiso, zvichingodaro.
Kune ekurodha uye mamwe machina ekuvaka, ayo e hydraulic transmission components segiya magiya, torque converter yemukati yakajairika yekushanda tembiricha theoretically 8O-90 ℃ , iyo yepamusoro haipfuure 120 ℃ , asi senge maawa akareba ebasa rakawandisa. Kusvika kana kutopfuura 130 ℃ yemukati kutenderera kweyakakwira-tembiricha kuderera kwemvura uye kuderera nekufamba kwenguva, nepo zvikamu zvesimbi slag (meshing kufamba kwezvikamu zvesimbi uye nguva yekushanda kwesimbi shavings inowira mukati mekushanda svikiro) mune yakakwirira-tembiricha inopisa mafuta inotungamirwa nezvisimbiso zvakakonzerwa nekukanganisa kwezvisimbiso zvehupenyu.
Naizvozvo, HNBR inogona kushandiswa mukusimba kwekushisa kwepamusoro, kuderera kwekushisa kwekushisa, kupisa kwekushisa kwekushisa kwekusingaperi deformation, oxidation uye kuora kweasidhi kwemafuta nesimbi sludge kushanda uye zvimwe zvikamu zvemutengo wezvakanakira zvinoratidzwa, nekutsiviwa kwayo kwechisimbiso cheFKM chazvino, zvose kuvandudza hupenyu hwebasa rezvisimbiso, asiwo kuderedza kuwanda kwekutsiviwa kwepakati yekushanda; uye yakakwirira tembiricha kuramba kweFKM idiki zvakanyanya. Yekuvaka muchina unoshanda mudziyo hydraulic system, iyo system inoshanda kumanikidza inowanzo 16MPa (iyi yakanyanya-pressure system), iyo inoshanda svikiro (HM46 kana HM32 hydraulic mafuta) yeyakajairwa yekushanda tembiricha ye45-55 ℃ , nekuda kwemamiriro ekushanda kwechishandiso akashata, pamwe nekusashanda zvakanaka kwemushandisi, pamwe nekugadzirisa hupfumi hunoita kuti hupfumi huwedzere. kuyerera tembiricha yemafuta Kupfuura muganhu uyu, nokudaro zvichikonzera kuparara kwehydraulic oiri.
Uye zvakare, kuumbwa kweiyo hydraulic system zvikamu zveyakakwira-speed rotary movement (hydraulic pump) uye inogara ichidzokorodza kutsvedza (hydraulic cylinder piston rod uye multi-way reversing valve valve stem) inoburitsawo simbi slag uye kuderera kwemafuta, zvisimbiso zvakare zvichikonzerwa nekukanganisa kwekupokana, iyo system yekumwe kutadza kukonzeresa kukonzeresa kukonzeresa kukonzeresa uye kutadza kukonzeresa. pazvisimbiso zvekirasi zveNBR zvazvino, nekuda kwesimba rayo rekusimba uye kuramba kushatiswa kwezvisimbiso zvemafuta Kune zvisimbiso zviripo zveNBR, nekuda kwekusimba kwayo uye kuramba kuderedzwa kwemafuta uye zviri nyore kutadza, nekuda kwesimba reHNBR, kupora kwakanaka, muchikamu chekurasikirwa nekukasira kwekumanikidza kushanda kwezvisimbiso hazvina zvazvinoita, saka muhydraulic system, mamwe mavharuvhu, mamwe mavharuvhu, mamwe mavharuvhu, mamwe mavharuvhu, mavharuvhu, mamwe mavharuvhu, uye mamwe mavharuvhu, mamwe mavharuvhu, mavharuvhu, uye mamwe ma hydraulic system. HNBR zvisimbiso zvinogona kuvandudza zvakanyanya yekuisa chisimbiso uye hupenyu hwesevhisi.
