Imishini yokwakha i-hydraulic transmission system ezingxenyeni eziyinhloko ezifana ne-gearbox torque converter (okubizwa ngokuthi inguquko ephindwe kabili) kanye ne-work unit hydraulic system ku-valve yokubuyisela emuva ene-O-ring nezinye izimpawu, iningi lazo lisetshenziswe irabha ye-fluorine (FKM) ukuvala impahla inokumelana okuhle kukawoyela, ukumelana ne-abrasion nokuvimbela ukuvuza kwesistimu nokuvimbela ukushisa okuphezulu. ukuqina kuzuze umphumela othile. Kodwa-ke, ngenxa yokuba khona kwalezi zimpawu, intengo ephezulu, ukumelana kabi nokuwohloka kwe-rancidity kawoyela, ukumelana nokubanda nezinye izici ezingezinhle, okwenza izindleko zomkhiqizo zikhuphuke, futhi kuthinte ukuthengiswa komkhiqizo, ngakho-ke kuyadingeka ukuthola into eyongayo futhi eqinile yokubeka uphawu esikhundleni sezinto ezikhona zokuvala.
I-HNBR kanye Nezakhiwo zayo
I-HNBR iwuhlobo olusha lwe-elastomer emelana nowoyela eyethulwa yi-Nippon Zeon ngo-1984, eyathuthukiswa ukuze ihlangabezane nesidingo esiphuthumayo sokufakwa kwenjoloba ngaphansi kwezimo ezinzima embonini yezimoto. Kungukumelana okuhle kakhulu kukawoyela kwerabha ye-nitrile (igama lekhodi elithi NBR) ukwakheka kwamangqamuzana e-carbon-carbon double bond ngokukhetha i-hydrogenated (saturated) ukucubungula kwesakhiwo samangqamuzana oshintsho, shintsha ukumelana nokushisa kwe-NBR, ukuqina kwamakhemikhali e-maroon kobuthakathaka babampofu, ngamandla amakhulu nokumelana namazinga okushisa aphezulu naphansi, ukumelana nowoyela nemidiya yamakhemikhali njengokumelana nokusebenza okuvelele kakhulu. Ngesikhathi esifanayo igcina ukumelana nokugqokwa okuhle kakhulu nokucutshungulwa kwe-NBR. Uma kuqhathaniswa ne-FKM ne-NBR
Izici eziyinhloko zokusebenza kwe-HNBR zimi kanje:
(1) Izimo lokushisa: I-HNBR ingasetshenziswa isikhathi eside ku-l50 ℃ , ukusetshenziswa kwesikhashana kwezinga lokushisa kuze kufike ku-l75 ℃.
I-HNBR, ingasetshenziswa isikhathi eside ku-230 ℃ , ukusetshenziswa kwesikhashana kwezinga lokushisa kuze kufike ku-300 ℃ . Ukumelana nokushisa kwe-HNBR phakathi kwe-NBR ne-FKM, kodwa ngokwezinga lokushisa eliphansi ukumelana, ukumelana nokubanda kwe-FKM kubi (-15 ℃ okulula ukuphuka ukuphuka); futhi i-HNBR inokusebenza okuhle kakhulu kwezinga lokushisa eliphansi, enokulinganisela okuhle phakathi kokumelana nowoyela
(2) Izakhiwo zomzimba nezemishini: iningi lenjoloba elimelana nowoyela ngenxa yamandla aphansi aqinile, ngakho-ke ikhawulela ububanzi bokusebenza kwayo, njengamandla e-FKM aqinile we-19.6-21.6MPa, amandla e-HNBR kune-NBR, ACMXNBR, EPDM kanye ne-FKM nezinye izinhlobo zenjoloba ziphakeme, njenge-hydrogendiene i-rubber ye-rubber ye-ZSC eqinile kodwa i-hydrogen I-6OMPa okubaluleke kakhulu, i-HNBR emazingeni okushisa aphezulu (Okubaluleke kakhulu, i-HNBR ekushiseni okuphezulu (15O ℃ ) ngaphansi kwamandla (14.7-29.4MPa) kanye nokushisa kwekamelo le-NBR ukuze kugcinwe izinga elifanayo emazingeni okushisa aphezulu ezinhlobonhlobo zamafutha ayinkimbinkimbi kanye nemidiya yamakhemikhali isengakwazi ukulondoloza izakhiwo ezinhle kakhulu zemishini, izinga lokushisa eliphezulu lomzimba kanye nezakhiwo ezihle kakhulu zokumelana nokuqina komzimba okungcono kakhulu.
Inhlanganisela yobuchwepheshe, ungathola ukusebenza okuhle kakhulu kokucindezelwa kwezinga lokushisa okuphezulu, futhi lokhu kusebenza kwe-FKM akukuhle kangako.
(3) Ukumelana nabezindaba kwamakhemikhali: I-HNBR inokumelana okuhle kakhulu nowoyela emazingeni okushisa aphezulu, ukumelana nezinhlobonhlobo zamafutha kawoyela we-hydraulic, uwoyela kaphethiloli aqukethe izithasiselo ezahlukahlukene, uwoyela ogqwalile ogqwalile kanye nokusebenza kwe-slag yensimbi, futhi inokumelana okuhle kakhulu kwe-ozone, ukumelana nemisebe ephezulu lokushisa kanye nokumelana namanzi ashisayo.
Kusukela kulezi zici ezingenhla ze-HNBR, uma kuqhathaniswa ne-FKM, ukusebenza okungcono kakhulu kwangaphambilini, i-FKM, nakuba ekumelaneni nokushisa, ukumelana nowoyela, ukumelana nowoyela ovuthayo kungcono kune-HNBR, kodwa i-HNBR ekushiseni okusebenzayo kwezakhiwo zokumelana nomusi, ukumelana nezithasiselo zikawoyela, ukumelana ne-oxidation kanye nokuwohloka kwe-rancidity kawoyela nezinye izakhiwo zamakhemikhali anjenge-FK superi. Ngaphezu kwalokho, i-FKM enqubweni yokukhiqiza nokubumba ngenxa yokungabi namanzi kwempahla, izinto zokusetshenziswa kanye nokusebenza komkhiqizo akuzinzile, ngakho-ke izindleko zayo. Ngaphezu kwalokho, i-FKM ibiza kakhulu ohlelweni lokukhiqiza nokubumba ngenxa yokungahambi kahle kwezinto ezibonakalayo, izinto ezingavuthiwe ezingazinzile kanye nokusebenza komkhiqizo, kuyilapho i-HNBR ibiza kancane kune-FKM ngenxa yokubunjwa okuhle nokucutshungulwa kwezinto, ukusebenza okuzinzile kanye nenani eliphansi.
Isimo sohlelo lokusebenza lwe-HNBR nokuhlaziywa kokusetshenziswa kwayo emishinini yokwakha
Ngenxa yokusebenza kahle okuhle kakhulu kwe-HNBR, isetshenziswe kabanzi ezicini eziningi ukufaka esikhundleni se-FKM emazweni angaphandle: isetshenziswe embonini yezimoto ukwenza umshini wokugcwalisa umshini wezimoto ngaphambili nangemuva nowoyela webhokisi lika-gearbox, izigxivizo ze-H-uhlobo lwe-shaft, ama-seal ohlelo lomjovo kaphethiloli, i-piston cylinder vibration vibration damping seals futhi embonini ye-metallurgical, isetshenziswa ekwenzeni i-metallurgy high-line rolling mill axle diameter double sided seals, kanye nezigxivizo zamasilinda amise okwefeni emshinini wokuphonsa oqhubekayo wasekhaya; nasembonini yezindawo zikawoyela, isetshenziswa ekwenzeni izinsimbi zokumba, kanye nezimpawu zokumba izinsimbi. Embonini ye-oilfield, asetshenziselwa ukwenza uphawu lwesivikeli se-drill bit yokumba uphawu lwe-wellhead sealing, uphawu lwe-oil plug pump, njalonjalo.
Kuma-loaders neminye imishini yokwakha, izakhi zawo zokudlulisa i-hydraulic ezifana nama-gearbox, i-torque converter yangaphakathi izinga lokushisa elivamile lokusebenza ngokwethiyori 8O-90 ℃ , eliphakeme kakhulu alidluli ku-120 ℃ , kodwa njengamahora amade omsebenzi ogcwele kakhulu. Kufika noma ngisho nangaphezu kuka-130 ℃ umjikelezo wangaphakathi wokuwohloka nokonakala koketshezi olusezingeni eliphezulu ngokuhamba kwesikhathi, kuyilapho izingxenye ze-slag yensimbi (ukunyakaza kwe-meshing kwezingxenye zensimbi kanye nesikhathi senqubo yokusebenza kwezinsimbi zensimbi eziwa endaweni yokusebenza) kuwoyela oshisayo onezinga lokushisa eliphezulu eliqhutshwa izigxivizo ezibangelwa umthelela wezimpawu zokuvala, lapho kuthinta ukuphila kwezimpawu.
Ngakho-ke, i-HNBR ingasetshenziswa emandleni okushisa aphezulu, ukumelana nokushisa okuphansi, ukushisa okuphezulu kokucindezelwa kokushintsha unomphela, i-oxidation kanye nokuwohloka kwe-asidi kawoyela nokusebenza kodaka lwensimbi nezinye izici zentengo yezinzuzo ezibonisiwe, ngokuthatha indawo yophawu lwamanje lwe-FKM, kokubili ukuthuthukisa impilo yesevisi yezimpawu, kodwa futhi kunciphise imvamisa yokushintshwa kwendawo yokusebenza; futhi ukumelana nokushisa okuphezulu kwe-FKM kuncane kakhulu. Emishinini yokwakha esebenza ngohlelo olusebenza ngomshini, ingcindezi yokusebenza kwesistimu imvamisa i-16MPa (iwuhlelo olunomfutho ophezulu), indawo yokusebenza (HM46 noma HM32 uwoyela wokubacindezela) wezinga lokushisa elijwayelekile lokusebenza lika-45-55 ℃ , ngenxa yezimo zokusebenza zedivayisi zimbi, kuhambisana nokusebenza okungafanele komsebenzisi kanye nenzuzo yesistimu yokulayisha ngokweqile. izinga lokushisa likawoyela eligelezayo Ngaphezu kwalo mkhawulo, ngaleyo ndlela kubangele ukuwohloka kwamafutha asebenza ngaphansi komhlaba.
Ngaphezu kwalokho, ukwakheka kwezingxenye zesistimu ye-hydraulic yokunyakaza kwe-rotary ngesivinini esikhulu (ipompo ye-hydraulic) kanye nokushelela okuphindaphindekayo (induku ye-hydraulic cylinder piston rod kanye ne-multi-way reverse valve valve stem) kukhiqiza i-slag yensimbi nokuwohloka kukawoyela, izimpawu nazo ezibangelwa umthelela wokungqubuzana, ukwehla kwengcindezi kubangelwa ukuncipha okuzumayo kwesistimu kanye nokwehla kwengcindezi. ezigxivizweni zamanje zesigaba se-NBR, ngenxa yamandla aqinile nokumelana nokuwohloka kwezakhiwo zikawoyela Okwezimpawu ezikhona ze-NBR, ngenxa yamandla aqinile nokumelana nokuwohloka kukawoyela futhi kulula kakhulu ukwehluleka, ngenxa yamandla e-HNBR, ukululama okuhle, ngokwengxenye yokulahlekelwa okungazelelwe kokucindezela ekusebenzeni kwezimpawu kunomthelela omncane, ngakho-ke ohlelweni lwamanzi, ama-valve ama-hydraulic, amanye ama-valve ama-hydraulic, ama-valve ama-hydraulic, ama-valve, ama-valve ama-hydraulic, ama-valve ama-hydraulic, ama-valve, ama-valve nezinye izinto ezisetshenziswayo Izigxivizo ze-HNBR zingathuthukisa kakhulu umphumela wokuvala nempilo yesevisi.
