Tsarin watsawa na injin hydraulic a cikin manyan abubuwan da aka gyara kamar gearbox jujjuya juzu'i (wanda ake magana da shi azaman canji sau biyu) da tsarin aikin na'ura mai aiki da karfin ruwa a cikin bawul mai juyawa da yawa tare da O-ring da sauran hatimi, yawancinsu an yi amfani da roba mai fluorine (FKM) don rufe kayan yana da kyakkyawan juriya na mai, juriya da juriya ga tsarin tsarin, don haka yana hana haɓakar yanayin zafi da tsarin. ya sami wani tasiri. Duk da haka, saboda kasancewar irin wannan hatimi, high price, matalauta juriya ga rancidity tabarbarewar man fetur, sanyi juriya da sauran korau dalilai, sa farashin da samfurin ya karu, da kuma rinjayar da tallace-tallace na samfurin, don haka wajibi ne a sami wani tattalin arziki da kuma m sealing abu maimakon data kasance sealing abu.
HNBR da Kayayyakin sa
HNBR wani sabon nau'in elastomer ne mai jurewa mai wanda Nippon Zeon ya gabatar a cikin 1984, wanda aka ƙera shi don biyan buƙatun gaggawa na kayan aikin roba a ƙarƙashin yanayi mara kyau a cikin masana'antar kera motoci. Yana da kyau kwarai juriya na man nitrile roba (lambar sunan NBR) tsarin kwayoyin halitta na carbon-carbon biyu bond selectively hydrogenated (cikakken) sarrafa na kwayoyin tsarin canji, canza NBR zafi-resistant, maroon sinadaran kwanciyar hankali na rauni na matalauta, tare da kyau kwarai ƙarfi da juriya ga high da low yanayin zafi, juriya ga mai da kuma sinadaran kafofin watsa labarai kamar juriya ga ma'auni, musamman da kuma musamman juriya ga ma'auni, musamman da kuma musamman juriya ga ma'auni. A lokaci guda kula da kyau kwarai lalacewa juriya da kuma aiwatar da NBR. Idan aka kwatanta da FKM da NBR
Babban halayen aikin HNBR sune kamar haka:
(1) Canjin yanayin zafi: Ana iya amfani da HNBR na dogon lokaci a l50 ℃ , ɗan gajeren lokacin amfani da zazzabi har zuwa l75 ℃.
HNBR, za a iya amfani da na dogon lokaci a 230 ℃ , da gajeren lokaci amfani da zazzabi har zuwa 300 ℃ . HNBR zafi juriya tsakanin NBR da FKM, amma dangane da low zafin jiki juriya, FKM ta sanyi juriya ne matalauta (-15 ℃ da sauki ga karye karaya); kuma HNBR yana da kyakkyawan aiki mai ƙarancin zafin jiki, tare da ma'auni mai kyau tsakanin juriya mai
(2) Jiki da na inji Properties: mafi yawan man roba roba saboda low tensile ƙarfi, don haka yana iyakance ikon yinsa da ikon yinsa, kamar FKM tensile ƙarfi na 19.6-21.6MPa, HNBR ƙarfi fiye da NBR, ACMXNBR, EPDM da FKM da sauran nau'in roba ne mafi girma, kamar Zeon ZSC hydrogenated nitrile, amma mafi muhimmanci HNBR tensilene. a high yanayin zafi (Mafi mahimmanci, HNBR a high zafin jiki (15O ℃ ) karkashin ƙarfi (14.7-29.4MPa) da kuma dakin zafin jiki NBR don kula da wannan matakin a high yanayin zafi a cikin wani iri-iri na hadaddun mai da kuma sinadaran kafofin watsa labarai iya har yanzu kula da kyau kwarai inji Properties, high zafin jiki na jiki da kuma inji Properties ne mafi alhẽri daga mafi yawan sauran na roba na roba ah jiki, mai kyau abrasion juriya.
Haɗin fasaha, zaku iya samun kyakkyawan yanayin matsananciyar zafin jiki na dindindin aiki na nakasawa, kuma wannan aikin na FKM bai yi kyau ba.
(3) sinadarai juriya: HNBR yana da kyau kwarai juriya mai a high yanayin zafi, juriya ga iri-iri na lubricants na'ura mai aiki da karfin ruwa man fetur, man fetur dauke da wani iri-iri Additives, karfi da lalata oxidizing mai da karfe slag yi, kuma yana da kyau kwarai ozone juriya, high-zazzabi radiation juriya da ruwan zafi juriya.
Daga sama halaye na HNBR, idan aka kwatanta da FKM, tsohon mafi kyau overall yi, FKM, ko da yake a cikin zafi juriya, mai juriya, juriya ga konewa man ne mafi alhẽri daga HNBR, amma HNBR a cikin aiki zafin jiki na inji Properties na tururi juriya, juriya ga man Additives, juriya ga hadawan abu da iskar shaka da rancidity lalatar da man fetur da sauran sinadaran Properties, kamar m zuwa FKM. Bugu da ƙari, FKM a cikin masana'antu da gyare-gyaren tsari saboda rashin ruwa na kayan aiki, kayan aiki da kayan aiki ba su da kwanciyar hankali, don haka farashin sa. Bugu da ƙari, FKM ya fi tsada a cikin tsarin masana'antu da gyare-gyare saboda ƙarancin kayan aiki, kayan albarkatun kasa maras kyau da aikin samfurin, yayin da HNBR ba shi da tsada fiye da FKM saboda kyawawan kayan gyare-gyare da sarrafa kayan aiki, kwanciyar hankali da ƙananan farashi.
Matsayin aikace-aikacen HNBR da nazarin aikace-aikacen sa a cikin injin gini
Saboda da kyau kwarai m yi na HNBR, shi da aka yadu amfani a da yawa al'amurran da suka maye gurbin FKM a kasashen waje: shi da aka yi amfani a cikin mota masana'antu don kerar mota crankshaft gaba da raya da gearbox man hatimi, H-type shaft like, like for man allura tsarin, piston Silinda vibration damping hatimi, carburetor O-rings, da dai sauransu; kuma a cikin masana'antar ƙarfe, ana amfani da shi a cikin kera na'urorin ƙarfe na ƙarfe mai tsayi mai tsayi mai tsayi mai tsayi mai tsayi mai tsayi biyu mai gefe, da hatimin silinda mai siffar fan a cikin injin ci gaba da simintin gida; kuma a cikin masana'antar mai, ana amfani da shi wajen kera na'urorin hakowa, da kuma hatimi don hakowa. A cikin masana'antar mai, ana amfani da su don yin hatimin kariyar rawar soja don hako rijiyoyin hakowa, kulle famfon mai, da dai sauransu.
Domin loaders da sauran gina inji, ta na'ura mai aiki da karfin ruwa watsa aka gyara kamar gearboxes, karfin juyi Converter ciki al'ada aiki zafin jiki a ka'idar 8O-90 ℃ , mafi girma ba ya wuce 120 ℃ , amma kamar tsawon sa'o'i na overloaded aiki. Har zuwa ko ma fiye da 130 ℃ na ciki sake zagayowar na high-zazzabi ruwa tabarbarewar da tabarbarewar a kan lokaci, yayin da sassa na karfe slag (meshing motsi na karfe aka gyara da kuma lokacin da aikin aiwatar da karfe shavings fadowa a cikin aiki matsakaici) a cikin high-zazzabi zafi man kore ta hatimi lalacewa ta hanyar da hatimi na hatimi, da sabis da tasiri a can.
Saboda haka, HNBR za a iya amfani da a cikin high zafin jiki ƙarfi, low zafin jiki juriya, high zafin jiki matsawa m nakasawa, hadawan abu da iskar shaka da acid lalatar da man fetur da karfe sludge yi da sauran al'amurran da farashin da abũbuwan amfãni da aka nuna, tare da maye gurbin na yanzu FKM hatimi, duka biyu don inganta rayuwar sabis na hatimi, amma kuma rage mita na maye gurbin na aiki matsakaici; kuma babban juriya na zafin jiki na FKM yayi ƙanƙanta sosai. Domin yi inji aiki na'ura mai aiki da karfin ruwa tsarin, da tsarin aiki matsa lamba ne kullum 16MPa (shine wani high-matsa lamba tsarin), da aiki matsakaici (HM46 ko HM32 na'ura mai aiki da karfin ruwa man fetur) na al'ada aiki zafin jiki na 45-55 ℃ , saboda da yanayin aiki na na'urar ne matalauta, guda biyu tare da rashin aiki na tattalin arziki na mai amfani da kuma rashin amfani da tsarin da za a iya amfani da su a cikin ruwa mai yawa. zafin mai ya kwarara Fiye da wannan iyaka, don haka yana haifar da tabarbarewar mai.
Bugu da kari, da abun da ke ciki na na'ura mai aiki da karfin ruwa tsarin aka gyara na high-gudun Rotary motsi (na'ura mai aiki da karfin ruwa famfo) da kuma m reciprocating zamiya (na'ura mai aiki da karfin ruwa piston sanda da Multi-hanya reversing bawul bawul kara) Har ila yau, samar da karfe slag da man tabarbarewar, da hatimi kuma lalacewa ta hanyar tasiri gogayya, da tsarin sauran kasawa lalacewa ta hanyar da matsa lamba a halin yanzu aji da kuma ko da m da tasiri a kan BR azuzuwan rage matsa lamba a halin yanzu. hatimi, saboda ta tensile ƙarfi da juriya ga kaskantar da man kaddarorin Domin data kasance NBR hatimi, saboda ta tensile ƙarfi da kuma juriya ga lalacewa na man fetur da kuma sosai sauki ga kasa, saboda da ƙarfi na HNBR, mai kyau dawo da, a wani ɓangare na kwatsam asarar matsa lamba a kan yi na hatimi da kadan tasiri, don haka a cikin na'ura mai aiki da karfin ruwa tsarin na cylinders, farashinsa, iya amfani da na'ura mai aiki da karfin ruwa tsarin na cylinders, famfo, da sauran kayan aikin HNBR na hydrauly. tasirin rufewa da rayuwar sabis.
