Irabha yeNitrile
Irabha yeNitrile, ekwabizwa ngokuba yirabha yeNitrile-butadiene (NBR, Buna-N), yirabha eyenziweyo enika ukumelana okuhle kakhulu neeoyile ezisekelwe kwipetroleum kunye neoyile yeminerali kunye nemifuno. Irabha yeNitrile iyakwazi ukumelana ngakumbi nerabha yendalo xa kufikwa ekwaluphaleni kobushushu - idla ngokuba yinzuzo ephambili, njengoko irabha yendalo inokuqina kwaye ilahlekelwe bubuchule bayo bokufuma. Irabha yeNitrile ikwalukhetho olukhulu lwezinto ezisetyenziswayo ezifuna ukumelana nokukrweleka kunye nokunamathela kwesinyithi.
Isetyenziselwa ntoni irabha ye-nitrile?
Irabha yeNitrile isebenza kakuhle kwi-carburetor kunye ne-fuel pump diaphragms, ii-aircraft hoses, ii-oil seals kunye nee-gaskets kunye nee-tubes ezifakwe kwi-oyile. Ngenxa yokuguquguquka kwayo kunye nokumelana kwayo okunamandla, izinto ze-nitrile zisetyenziswa kwizicelo ezibandakanya kungekuphela nje i-oyile, i-fuel kunye ne-chemical resistance, kodwa nezo zicelo zifuna ukumelana nobushushu, ukukrazula, amanzi, kunye nokuvuleka kwegesi. Ukusuka kwii-oyile rigs ukuya kwii-bowling alleys, irabha ye-nitrile inokuba yinto efanelekileyo kwisicelo sakho.
Iipropati
♦ Igama eliqhelekileyo: Buna-N, Nitrile, NBR
• Udidi lwe-ASTM D-2000: BF, BG, BK
• Inkcazo yeKhemikhali: iButadiene Acrylonitrile
♦ Iimpawu eziBanzi
• Imozulu yokwaluphala/ Ukukhanya kwelanga: Kubi
• Ukunamathela kwiMetals: Kuhle ukuya kwiBest
♦ Ukuxhathisa
• Ukumelana nokurhawuzelelwa: Kuhle kakhulu
• Ukumelana nokukrazuka: Kulungile
• Ukuxhathisa: Okulungileyo ukuya kokuGqwesileyo
• Ukumelana neoyile: Kuhle ukuya kuGqwesile
♦ Uluhlu lobushushu
• Ukusetyenziswa kobushushu obuphantsi: -30°F ukuya ku -40°F | -34°C ukuya ku -40°C
• Ukusetyenziswa kobushushu obuphezulu: Ukuya kuthi ga kwi-250°F | 121°C
♦ Iipropati ezongezelelweyo
• Uluhlu lweDurometer (uLwandle A): 20-95
• Uluhlu lokuThatha (i-PSI): 200-3000
• Ubude (Ubuninzi %): 600
• Iseti yoxinzelelo: Ilungile
• Ukuqina/ Ukubuyela umva: Kulungile
Isilumkiso: I-Nitrile ayifanele isetyenziswe kwiindawo ezisebenzisa izinyibilikisi ezine-polar ephezulu ezifana ne-acetone, i-MEK, i-ozone, ii-chlorinated hydrocarbons kunye ne-nitro hydrocarbons.
Izicelo
Iimpawu zezinto zerabha yeNitrile zenza ukuba ibe sisisombululo esifanelekileyo sokufaka uphawu. Ikwanayo nokumelana okuhle kakhulu neemveliso zepetroli kwaye inokuhlanganiswa ukuze ifakelwe amaqondo obushushu afikelela kwi-250°F (121°C). Ngala mandla obushushu, iikhompawundi zerabha zeNitrile ezifanelekileyo zinokumelana nazo zonke ezinye izicelo ngaphandle kwezona zinzima zeemoto. Ezinye izicelo ezixhamla kwiimpawu zerabha zeNitrile ezinokuhlanganiswa ngokwezifiso kwaye zibunjwe ziquka:
♦ Ukusetyenziswa okumelana neoyile
♦ Usetyenziso lobushushu obuphantsi
♦ Iinkqubo zepetroli zeemoto, zaselwandle nezeenqwelo-moya
♦ Izigqubuthelo zemiqulu yeNitrile
♦ Iipayipi ze-hydraulic
♦ Imibhobho yeNitrile
Imizekelo yezicelo kunye namashishini apho kusetyenziswa khona i-nitrile (NBR, buna-N) ibandakanya:
Ishishini leeMoto
I-Nitrile, ekwaziwa ngokuba yi-buna-N, ineempawu ezimelana neoyile ezenza ukuba ibe yinto efanelekileyo engaphantsi kwebhonethi.
I-Buna-N isetyenziselwa
♦ Iigasket
♦ Izitywino
♦ Iindandatho ze-O
♦ Iidiaphragm zeCarburetor kunye nepetrol pump
♦ Iinkqubo zepetroli
♦ Iipayipi ze-hydraulic
♦ Ukufaka iityhubhu
Ishishini lokubhowula
Irabha yeNitrile (NBR, buna-N) ayixhathisi kwioyile yomgca kwaye idla ngokusetyenziselwa
♦ Izixhobo zokubeka iiphini zebhowuli
♦ Iibhampa eziqengqelekayo
♦ Nantoni na edibana ngqo neoyile yomzila
Ishishini leoyile negesi
♦ Izitywino
♦ Ukufaka iityhubhu
♦ Iimilo ezibunjiweyo
♦ Izinto ezidityanisiweyo zerabha nesinyithi
♦ Izihlanganisi zerabha
Iinzuzo kunye neenzuzo
I-Nitrile inika amandla okumelana nokuguga kobushushu - inzuzo ephambili kunerabha yendalo kwimizi-mveliso yeemoto kunye ne-bowling.
Iingenelo zokusebenzisa irabha ye-nitrile:
♦ Isisombululo esihle kakhulu sokufaka izicelo zokutywina
♦ Iseti elungileyo yokucinezela
♦ Ukumelana nokurhawuzelelwa
♦ Amandla okuxinana
♦ Ukumelana nobushushu
♦ Ukumelana nokukrala
♦ Ukumelana namanzi
♦ Ukuxhathisa ukungena kwegesi
Isilumkiso: I-Nitrile ayifanele isetyenziswe kwiindawo ezisebenzisa izinyibilikisi ezine-polar ephezulu ezifana ne-acetone, i-MEK, i-ozone, ii-chlorinated hydrocarbons kunye ne-nitro hydrocarbons.
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