Iindidi zetywina zerabha ziyinxalenye ephambili yokuthintela ukuvuza kolwelo kushishino nakubomi bemihla ngemihla. Ngokusebenzisa iiyantlukwano zokusebenza kwezixhobo ezahlukeneyo zerabha, zilungelelanisa ngokuchanekileyo iimeko ezintsonkothileyo zokusebenza kwiinkalo ezininzi ezinjengeemoto, ukhathalelo lwezonyango, kunye nobunjineli bemichiza, ibe sisiqinisekiso esiphambili sokusebenza okuzinzileyo kwezixhobo kunye nokusebenza okukhuselekileyo nokutywiniweyo kweenkqubo. Ububanzi beemeko zabo zokusetyenziswa kunye nokuchaneka kokulungelelaniswa kobugcisa kubonisa ixabiso elinzulu lobunjineli bezinto zerabha.
Nangona itywina zerabha lisenokubonakala lincinci, lidlala indima ebalulekileyo "njengabagcini{0}abanobungqina bokuvuza" kumashishini awohlukeneyo. Ubunzulu besicelo sabo buhambelana ngokusondeleyo kwiqondo elihambelanayo leempawu eziphathekayo:
Ushishino lweemoto: "UmGcini waMandla" we-Oli{0}}eMatywina anganyangekiyo
Kwizinto eziphambili ezifana neenjini zeemoto kunye neebhokisi ze-gearbox, i-nitrile rubber (NBR) itywina, kunye nokuchasana kwe-oyile egqwesileyo (izinga lokuvuvukala kwe-volume <10% kwi-oyile yamaminerali) kunye namandla omatshini, asebenza "njengesithintelo esivaliweyo" se-fuel kunye ne-lubricating oil circuits. Umzekelo, i-oyile ye-injini itywina, ngenxa yoguquko olulastiki lwerabha ye-nitrile, inokumelana nokhukuliseko lwe-oyile ye-injini yobushushu obuphezulu ixesha elide, iqinisekisa ukuvuza{3} kokusebenza simahla kwenkqubo yamandla. Uthumelo lwetywina luxhomekeke ekugugekeni kwalo-oluxhathisayo nolukrazuka{6}}izakhiwo ezixhathisayo ukugcina intembeko yokutywina ngexesha eliphezulu{7}}intshukumo yomatshini wesantya esiphezulu, inceda inkqubo yamandla emoto ukuba ifezekise inkonzo ezinzileyo amashumi amawaka eeyure.
Intsimi yezonyango: I-Biocompatible "Umgca woKhuselo lwezeMpilo"
Iimfuno ezingcolileyo nezingeyotyhefu zezixhobo zonyango zenza irabha ye-silicone (VMQ) itywine ukhetho olukhethwayo. Olu hlobo lwesitywina lugqithise isatifikethi se-USP Class VI biocompatibility kwaye sinokudibana ngokuthe ngqo nolwelo lomzimba womntu okanye iziyobisi. Kwizixhobo ezifana neeseti zokufakwa, iiventilator, kunye namalungu enziweyo, ayiphumeleli kuphela irhasi{3}}ukutywinwa kolwelo kodwa inqanda ukusabela kokwaliwa phakathi kwemathiriyeli kunye nomzimba womntu. Umzekelo, amacandelo okutywinwa kweempompo zokufakwa zonyango, kunye nococeko oluphezulu kunye nokumelana nokubulala iintsholongwane kwirabha ye-silicone (ekwaziyo ukumelana nobushushu obuphezulu{5}}nobushushu bokucolwa ngumphunga), qinisekisa ukhuseleko kunye ne-asepsis yenkqubo yonyango.
Umzi-mveliso weMichiza: "I-Corrosion{0}}Resistant Pioneer" kwindawo eziNcisa kakhulu
Xa sijongana nemithombo yeendaba egqithileyo njengeeasidi ezomeleleyo, ii-alkalis ezomeleleyo, kunye nee-oxidants ezomeleleyo, amatywina e-fluororubber (FKM) abonisa ukomelela "komhlwa{0}}onganyangekiyo njengovulindlela". Kwiimeko ezinjengeenqanawa zokusabela kweekhemikhali kunye nemibhobho ye-oyile, i-fluororubber inokumelana nokhukuliseko lwexesha elide kubushushu obungama-260 kunye ne-98% ye-asidi ye-sulfuric. Ngeseti yoxinzelelo engaphantsi kwe-20%, inokugcina uxinzelelo lokutywinwa ixesha elide phantsi{7}}loxinzelelo oluphezulu kunye neemeko eziyingozi kakhulu, iqinisekisa ukuba inkqubo yemichiza ayivuzi okanye ayiphumeleli. Yeyona nkxaso ingundoqo kwimveliso ekhuselekileyo nesebenzayo yoshishino lweekhemikhali.
Izixhobo zemihla ngemihla: Isixhobo esingenamanzi kunye nothuli "uMncedisi woBomi"
Ukusuka kwiitywina zamanzi kumatshini wokuhlamba wendlu ukuya kumakhonkco othuli kwizixhobo zamandla, i-ethylene propylene diene monomer (EPDM) kunye ne-chloroprene rubber (CR) itywina idibaniswe ngokunzulu kwiimeko zobomi bemihla ngemihla. Iimpawu ze-EPDM ziye zaba lukhetho oluqhelekileyo kwiifestile kunye neengcango zokutywinwa kwefestile kunye nokutywinwa kwemibhobho yomoya womoya ngenxa yokumelana nemozulu eqinile (ubomi obuguga be-ozone yangaphandle> iminyaka emi-5). Izitywina ze-CR, ezinedangatye-elingakhathali kwaye{4}}zinxitywayo{4}}iipropati ezixhathisayo, zithintela ngokufanelekileyo uthuli kunye nobutyobo ekungeneni kwiitywina zeshaft yezixhobo zombane, ngokwenjenjalo zandisa ubomi benkonzo yesixhobo.
La matywina erabha, asekelwe kwiipropati eziphathekayo kwaye ajoliswe kwiimfuno zendawo, zakha "umgca wokukhusela ovaliweyo" kwiinkalo ezahlukeneyo. Ukususela ekuhanjisweni okuzinzileyo kwamandla eemoto ukuya kwisiqinisekiso sokhuseleko lonyango kunye nokhathalelo lwempilo, kwaye emva koko kuthintelo lomngcipheko kunye nolawulo kwimveliso yeekhemikhali, ukusetyenziswa kwabo okubanzi akubonisi nje impumelelo yetekhnoloji yobunjineli bezinto zerabha, kodwa kwakhona iba yintloko yembombo engabonakaliyo yokusebenza ngokufanelekileyo nangokukhuselekileyo kwamashishini ahlukeneyo.
