Irabha yendalo inokumelana nemidiya ebandakanya amanzi acocekileyo, amanzi etyuwa, umoya, igesi engasebenziyo, ialkali, kunye nezisombululo zetyuwa;nangona kunjalo, ioli yamaminerali kunye ne-solvents non-polar iya kuyonakalisa.Isebenza kakuhle kakhulu kumaqondo aphantsi kwaye inobushushu bokusebenzisa ixesha elide obungekho ngaphezulu kwama-90°C.Isebenza kwi -60 °C.Sebenzisa lo mzekelo ungasentla.
Iikhompawundi ze-petroleum ezibandakanya i-oyile ye-fuel, i-oyile yokuthambisa, kunye ne-petroleum zamkelekile kwirubha ye-nitrile.Uluhlu lobushushu bokusetyenziswa kwexesha elide yi-120 ° C, i-150 ° C kwioli eshushu, kunye ne-10 ° C ukuya -20 ° C kumaqondo aphantsi.
Amanzi olwandle, iiasidi ezibuthathaka, iialkali ezibuthathaka, izisombululo zetyuwa, ioksijini egqwesileyo kunye nokumelana nokuguga kwe-ozone, ukumelana ne-oyile engaphantsi kwerabha ye-nitrile kodwa ingcono kunezinye irabha ngokubanzi, amaqondo obushushu okusetyenziswa kwexesha elide angaphantsi kwe-90 °C, ubushushu bokusebenzisa kakhulu. azikho ngaphezu kwe-130 °C, kwaye amaqondo obushushu aphantsi aphakathi kwe -30 kunye ne-50 °C onke alungele irabha yeklororene.
Irabha yeFluorine izakwiifom ezahlukeneyo, zonke zine-asidi elungileyo, i-oxidation, ioli, kunye nokumelana ne-solvent.Ubushushu bokusetyenziswa kwexesha elide bungaphantsi kwama-200°C, kwaye bunokusetyenziswa phantse kuzo zonke imidiya yeasidi kunye nee-oyile nezinyibilikisi.
Iphepha lerabha lisetyenziswa kakhulu njengegasket yeflange kwimibhobho okanye imingxuma ehlala idilizwa rhoqo kunye nemingxuma yezandla, kwaye uxinzelelo alukho ngaphezu kwe-1.568MPa.Iigaskiti zerabha zezona zithambileyo kwaye zigqwesileyo ekudibaneni kuzo zonke iindidi zeegaskets, kwaye zinokuvelisa isiphumo sokutywina ngamandla amancinci nje okuqinisa kwangaphambili.Ngenxa yobunzima bayo okanye ubunzima obunzima, i-gasket ngoko ke ikhutshwe ngokulula xa iphantsi koxinzelelo lwangaphakathi.
Amaphepha erabha asetyenziswa kwizinyibilikisi zendalo ezifana nebenzene, iketone, iether, njl.njl. ezinokubangela ukungasebenzi kwetywina ngenxa yokudumba, ukukhula kobunzima, ukuthamba, kunye nokuncamathela.Ngokubanzi, ayinakusetyenziswa ukuba izinga lokudumba likhulu kune-30%.
Iipads zerabha zikhethwa kwi-vacuum kunye neemeko zoxinzelelo oluphantsi (ingakumbi ngaphantsi kwe-0.6MPa).Into yerabha ixinene kwaye umoya unokungeneka kancinci.Kwizikhongozeli zevacuum, umzekelo, irabha ye-fluorine isebenza ngcono njenge-gasket yokutywina kuba inqanaba le-vacuum linokuya phezulu ukuya kutsho kwi-1.310-7Pa.I-rubber pad kufuneka ibhakwe kwaye impontshwe ngaphambi kokusetyenziswa kwi-vacuum range ye-10-1 ukuya kwi-10-7Pa.
Nangona irabha kunye nezihluzi ezahlukeneyo zongezwa kwizinto zegasket, owona mba mkhulu kukuba awunakukwazi ukutywina ngokupheleleyo iipores ezincinci ezikhoyo, kwaye kukho inqanaba elincinci lokungena nangona ixabiso lingaphantsi kunezinye iigaskets kwaye likhona. kulula ukuyisebenzisa.Ngoko ke, nangona uxinzelelo kunye neqondo lokushisa aligqithisi, alinakusetyenziswa kumajelo angcolisa kakhulu.Ngenxa ye-carbonization yerabha kunye nezihluzi xa zisetyenziswa kwindawo ethile ye-oyile yobushushu obuphezulu, ngokuqhelekileyo kufutshane nokuphela kokusetyenziswa, amandla ayancipha, izinto eziphathekayo ziyakhululeka, kwaye ukungena kwenzeka kwi-interface kunye nangaphakathi kwe-gasket, ekhokelela ekuphekeni kunye nokupheka. Umsi.Ukongezelela, kumaqondo okushisa aphezulu, i-rubber sheet ye-asbestos ibambelela ngokukhawuleza kwindawo yokutywinwa kwe-flange, enzima inkqubo yokutshintsha i-gasket.
Ukugcinwa kwamandla kwezinto ze-gasket kugqiba uxinzelelo lwe-gasket kwimidiya eyahlukeneyo kwimeko eshushu.Izinto eziqulathe iintsinga ze-asbestos ziqulathe zombini amanzi ekristale kunye namanzi e-adsorption.Ngaphezulu kwe-500 ° C, amanzi e-crystallization aqala ukuhla, kwaye amandla aphantsi.Kwi-110 ° C, isibini kwisithathu samanzi e-adsorbed phakathi kweefayili ziye zanyuka, kwaye amandla e-fiber ancipha malunga ne-10%.Kwi-368 ° C, onke amanzi e-adsorbed aphelile, kwaye amandla e-fiber anciphile malunga ne-20%.
Amandla ephepha lerabha ye-asbestos aphenjelelwa kakhulu yinto ephakathi ngokunjalo.Umzekelo, amandla anqamlezayo erabha ye-asbestos enganyangekiyo kwi-oyile ayahluka phakathi kwe-oyile yokuthambisa yomoya kunye ne-aviation fuel ngama-80%, oku kungenxa yokuba ukudumba kwerabha ekwiphepha ngepetroli yenqwelomoya kuqatha ngakumbi kunoko kwenqwelomoya. ioli yokuthambisa.Ngokubhekiselele kwezi ngqalelo zikhankanywe ngasentla, ubushushu bokusebenza obukhuselekileyo kunye noxinzelelo lwephepha lerabha ye-asbestos yasekhaya XB450 yi-250 °C ukuya kwi-300 °C kunye ne-3 3.5 MPa;ubushushu obuphezulu beNombolo ye-400 yephepha le-asbestos elimelana ne-oyile yi-350 °C.
I-chloride kunye ne-sulfur ion zikhona kwiphepha lerabha ye-asbestos.I-Metal flanges inokukhawuleza ukwakha ibhetri ye-corrosion emva kokufunxa amanzi.Ngokukodwa, iphepha le-asbestos elimelana ne-oyile linomxholo wesulfure ophindwe kaninzi kunephepha lerabha ye-asbestos eqhelekileyo, nto leyo eyenza ukuba ingafanelanga ukusetyenziswa kwimithombo yeendaba engeyiyo i-oyile.Kwimithombo ye-oyile kunye ne-solvent, i-gasket iya kukhukhumala, kodwa ukuya kuthi ga kwinqanaba, ayinayo impembelelo kwisakhono sokutywinwa.Ngokomzekelo, uvavanyo lokucwiliswa kweeyure ezingama-24 kwi-fuel ye-aviation kwiqondo lokushisa legumbi lenziwa kwi-No.
Ixesha lokuposa: Apr-20-2023
