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 jikelele, amaqondo obushushu okusebenzisa ixesha elide angaphantsi kwama-90 ° C, amaqondo obushushu okusebenzisa aphezulu angekho ngaphezulu kwe-130 ° C, kunye namaqondo obushushu aphantsi aphakathi -30 kunye ne-50 °C irabha yonke ifanelekile.
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 zongezwe kwi-gasket material, owona mba mkhulu kukuba awukwazi ukutywina ngokupheleleyo ama-pores amancinci akhoyo, kwaye kukho iqondo elincinci lokungena nangona ixabiso lingaphantsi kwezinye iigaskets kwaye kulula ukuyisebenzisa. Ngoko ke, nangona uxinzelelo kunye neqondo lokushisa aligqithisi, alinakusetyenziswa kumajelo angcolisa kakhulu. Ngenxa ye-carbonization ye-rubber kunye ne-fillers xa isetyenziswe kwi-oil medium-high-temperature medium, ngokuqhelekileyo isondele ekupheleni kokusetyenziswa, amandla ayancipha, izinto eziphathekayo ziba zikhululekile, kwaye ukungena kwenzeka kwi-interface kunye nangaphakathi kwe-gasket, okukhokelela ekuphekeni kunye nomsi.
Ukugcinwa kwamandla kwezinto ze-gasket kugqiba uxinzelelo lwe-gasket kwimidiya eyahlukeneyo kwimeko eshushu. Izinto eziqulathe iintsinga ze-asbestos ziqulathe zombini amanzi ecrystallization 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 ye-aviation kunye ne-aviation fuel ngama-80%, oku kungenxa yokuba ukudumba kwerabha ekwiphepha ngepetroli yenqwelomoya kuqatha ngakumbi kunoko kwe-oyile yokuthambisa yenqwelomoya. 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 yerabha ye-asbestos enganyangekiyo kwi-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 le-asbestos eliqhelekileyo, elenza ukuba lingafanelanga ukusetyenziswa kwimithombo yeendaba engeyiyo ioyile. 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
