Rabara ea tlhaho e ka mamella mecha ea litaba e kenyelletsang metsi a hloekileng, metsi a letsoai, moea, khase e sa sebetseng, alkalis le tharollo ea letsoai;leha ho le joalo, oli ea diminerale le li-solvents tse seng polar li tla e senya.E sebetsa hantle ka tsela e ikhethang mochesong o tlase mme e na le mocheso oa ts'ebeliso ea nako e telele o sa feteng 90°C.E sebetsa ho -60 °C.Sebelisa mohlala o ka holimo.
Metsoako ea peterole e kenyelletsang oli ea mafura, oli e tlotsang, le peterole e amoheleha bakeng sa rabara ea nitrile.Mocheso oa mocheso bakeng sa tšebeliso ea nako e telele ke 120 ° C, 150 ° C oli e chesang, le -10 ° C ho -20 ° C mocheso o tlaase.
Metsi a leoatle, li-acids tse fokolang, li-alkali tse fokolang, litharollo tsa letsoai, oksijene e ntle haholo le ho hanyetsa botsofali ba ozone, ho hanyetsa oli e ka tlaase ho rabara ea nitrile empa e molemo ho feta rabara e meng e akaretsang, mocheso oa nako e telele o ka tlaase ho 90 ° C, mocheso o phahameng haholo oa tšebeliso. ha li phahametse 130 °C, 'me mocheso o tlase o pakeng tsa -30 le 50 °C kaofela o loketse rabara ea chloroprene.
Rabara ea Fluorine ea tlaka mefuta e sa tšoaneng, kaofela ha tsona li na le asiti e ntle, oxidation, oli, le solvent resistance.Thempereichara ea ts'ebeliso ea nako e telele e ka tlase ho 200 ° C, 'me e ka sebelisoa hoo e batlang e le lisebelisoa tsohle tsa asiti hammoho le oli le lihlapolli tse ling.
Letlapa la rabara le sebelisoa haholo joalo ka gasket ea flange bakeng sa liphaephe kapa hangata likoti tse heletsoang le masoba a matsoho, 'me khatello ha e kholo ho feta 1.568MPa.Li-gaskets tsa rubber ke tsona tse bonolo ka ho fetisisa le tse molemo ka ho fetisisa ho tlamahaneng har'a mefuta eohle ea li-gaskets, 'me li ka hlahisa phello ea ho tiisa ka matla a seng makae a ho tiisa pele.Ka lebaka la botenya ba eona kapa boima bo fokolang, ka hona gasket e phunyeletsoa habonolo ha e le tlas'a khatello ea ka hare.
Matlapa a rabara a sebelisoa ka har'a lihlapolli tsa tlhaho tse kang benzene, ketone, ether, joalo-joalo tse ka bakang ho hloleha ha tiiso ka lebaka la ho ruruha, ho hola ha boima ba 'mele, ho kokobela le ho khomarela.Ka kakaretso, e ke ke ea sebelisoa haeba boemo ba ho ruruha bo feta 30%.
Li-pads tsa rabara lia rateha maemong a vacuum le khatello e tlase (haholo-holo ka tlase ho 0.6MPa).Ntho ea rabara e teteaneng 'me moea o khona ho kenella ka mokhoa o fokolang.Bakeng sa lijana tsa vacuum, mohlala, rabara ea fluorine e sebetsa hantle joalo ka gasket e koalang kaha boemo ba vacuum bo ka nyolohela ho 1.310-7Pa.Letlapa la rabara le tlameha ho behoa le ho pompeloa pele le sebelisoa sebakeng sa vacuum sa 10-1 ho isa ho 10-7Pa.
Le hoja rabara le li-filler tse fapa-fapaneng li kenyelelitsoe thepa ea gasket, taba e kholo ke hore e ntse e ke ke ea tiisa ka ho feletseng li-pores tse nyenyane tse teng, 'me ho na le tekanyo e nyenyane ea ho kenella le hoja theko e le tlase ho feta li-gaskets tse ling. bonolo ho sebelisa.Ka hona, le haeba khatello le mocheso li sa feteletse, li ke ke tsa sebelisoa mecheng ea litaba e silafatsang haholo.Ka lebaka la carbonization ea rabara le li-fillers ha li sebelisoa sebakeng se seng sa oli se nang le mocheso o phahameng oa mocheso, hangata haufi le qetellong ea tšebeliso, matla a fokotseha, thepa e fetoha e hlephileng, 'me ho kenella ho etsahala ka har'a sebopeho le ka hare ho gasket, e lebisang ho coking le Ho ekelletsa moo, ka mocheso o phahameng, letlapa la rabara ea asbestos le khomarela habonolo holim'a ho tiisoa ha flange, e leng ho thatafatsa mokhoa oa ho nkela gasket sebaka.
Ho boloka matla a thepa ea gasket ho etsa qeto ea khatello ea gasket mecheng e sa tšoaneng ea litaba ka boemo bo futhumetseng.Lisebelisoa tse nang le likhoele tsa asbestos li na le metsi a kristale le metsi a adsorption.Ho feta 500 ° C, metsi a crystallization a qala ho theoha, 'me matla a fokotseha.Ho 110 ° C, likarolo tse peli ho tse tharo tsa metsi a adsorbed pakeng tsa likhoele li fokotsehile, 'me matla a khoele a theohile ka hoo e ka bang 10%.Ka 368 ° C, metsi 'ohle a adsorbed a theohile,' me matla a khoele a theohile ka hoo e ka bang 20%.
Matla a letlapa la rabara ea asbestos a susumetsoa haholo ke seaplane hape.Mohlala, matla a tenyetsehang a pampiri ea rabara ea asbestos e hananang le oli a fapana pakeng tsa oli e tlotsang ea sefofane le mafura a sefofane ka 80%, e leng hobane ho ruruha ha rabara letlapeng ka peterole ea sefofane ho matla ho feta ha sefofane. oli e tlotsang.Ka lebaka la lintlha tse boletsoeng ka holimo, mocheso o sireletsehileng oa ts'ebetso le likhatello tsa khatello bakeng sa lakane ea rabara ea asbestos ea malapeng XB450 ke 250 °C ho 300 °C le 3 3.5 MPa;mocheso o phahameng ka ho fetisisa bakeng sa lakane ea rabara ea asbestos ea No. 400 ke 350 °C.
Li-ion tsa chloride le sulfur li teng ka har'a lakane ea rabara ea asbestos.Metal flanges e ka haha betri e senyang kapele ka mor'a ho monya metsi.Haholo-holo, letlapa la rabara ea asbestos e hanyetsanang le oli e na le sebabole se phahameng ka makhetlo a 'maloa ho feta letlapa le tloaelehileng la rabara ea asbestos, e leng se etsang hore e se ke ea tšoanela ho sebelisoa mecheng ea litaba e se nang oli.Mecheng ea oli le ea solvent, gasket e tla ruruha, empa ho fihlela ntlha, ha e na tšusumetso ho matla a ho tiisa.Ka mohlala, tlhahlobo ea ho qoelisoa ka lihora tse 24 ka mafura a lifofane ka mocheso oa kamore e etsoa ka pampiri ea rabara ea asbestos e sa keneleng oli ea No. 400, 'me ho laetsoe hore keketseho ea boima bo bakoang ke ho monya oli ha ea lokela ho feta 15%.
Nako ea poso: Apr-20-2023
