O-Rings Perfluoroelastomer (FFKM)
S¨¦ala¨ª Staiti¨²la O-RINGS PERFLUOROELASTOMER (FFKM) d¨¦anta as rubar Perfluoroelastomer (FFKM) le h¨²s¨¢id i nd¨¢la¨ª crua nach bhfuil fluororrubbers (FKM) oiri¨²nach. T¨¢ na O-Rings leaisteacha agus seasmhach go teirmeola¨ªoch agus go ceimiceach. Teocht oibri¨²ch¨¢in fadt¨¦armach -25¡æ ~ 250¡æ , gearrth¨¦armach suas le 300¡æ, faoi bhun an teocht embrittlement t¨¢ plaisteacht ¨¢irithe, crua ach n¨ª brittle, sol¨²btha f¨®s. Cobhsa¨ª do na ceimice¨¢n go l¨¦ir seachas at¨²is i tuaslag¨®ir¨ª fluair¨ªnithe. ?s¨¢idtear go coitianta in aerasp¨¢is, eitl¨ªocht, ceimiceach, peitriliam, fuinneamh n¨²icl¨¦ach agus in earn¨¢lacha tionscla¨ªocha eile. Cur s¨ªos ¨¢bhartha: Tagra¨ªonn rubar cluifluair¨ªnithe d'eit¨¦ir perfluorineach (meitile vinile), tetrafluoroit¨¦itilen Ar a dtugtar rubar perfluoroether freisin. T¨¢ neart an-ard agus cobhsa¨ªocht cheimiceach ag rubar cluair fluair¨ªnithe, is ¨¦ an t-¨¢bhar rubair is fearr le friota¨ªocht teocht ard, feidhm¨ªocht aois teirmeach maith, friota¨ªocht l¨¢idir ola, friota¨ªocht fuar shrinkage, friota¨ªocht dul in aois agus friota¨ªocht tuirse. T¨¢ air¨ªonna fisici¨²la agus meicni¨²la maithe ag t¨¢irg¨ª rubair Perfluoroelastomer (FFKM), air¨ªonna inslithe maithe agus friota¨ªocht uisce. Air¨ªonna Perfluoroelastomer (FFKM) O-Ringsa¨ª R¨²bair: Maoin Luach Measartha Dearbhais, Cladach A 70 - 90 neart Tensile 1700- 3000 PSI ar fhad¨² ag sos% 100 ~ 300% Dl¨²s 1.9 ~ 2.5 g /, cm3 Raon Teocht: Teocht ¨ªseal Caighde¨¢nach: 25¡æ (-13¨H) Ardteocht Caighde¨¢nach: -250¡æ (482¨H) ¡ù Is ¨¦ an raon teochta luach tagartha na gcomhdh¨²ile tipici¨²la, T¨¢ an luach difri¨²il de r¨¦ir an fhoirmi¨² ¨¢bhartha, HARDNESS RANGE: 50 ~ 90 Shore A (70 Cladach A an ceann is coitianta) CURE SISTEM: Faoi l¨¢thair, t¨¢ roinnt gn¨ªomhair¨ª trasnasctha ag rubar perfluorinaithe, Is gn¨ªomhair¨ª comhph¨¢irteacha radacacha saor in aisce iad cuid de na gn¨ªomhair¨ª trasnasctha n¨ªos coitianta, Spreag gn¨ªomhair¨ª vulcanization triazine go catala¨ªoch chun banna¨ª trasnasctha benzooxazole a fhoirmi¨². F¨¦adann na modhanna seo a gcuid rubair perfluorinaithe faoi seach a vulcan¨² go hioml¨¢n, ¨¢fach, t¨¢ a bunt¨¢ist¨ª agus a gcuid m¨ªbhunt¨¢ist¨ª uath¨²la f¨¦in acu. Ba cheart don ¨²s¨¢ideoir an gn¨ªomhaire leigheas iomchu¨ª a roghn¨² go c¨²ramach chun na riachtanais ¨²s¨¢ide deiridh a chomhl¨ªonadh. Go ginear¨¢lta, d¡¯fhonn feidhm¨ªocht gach c¨®ras vulcanization a uasmh¨¦ad¨², teasta¨ªonn vulcanization t¨¢naisteach. ?s¨¢idtear crosslinkers Perocsa¨ªde den chuid is m¨® le haghaidh gr¨¢id PEF resistant cheimiceach. Radacacha saor a th¨¢irgtear tr¨ª s¨¢rocsa¨ªd¨ª a chomhcheangal le monaim¨¦ir¨ª pointe leigheas br¨®im¨ªn n¨® iaid¨ªn (X-CSMA: T¨¢ X = Br n¨® I) agus comh-crosslinkers oiri¨²nacha oiri¨²nach le h¨²s¨¢id ag teochta¨ª suas le 230 ¡ã C agus i gal, Aig¨¦ad agus timpeallachta¨ª uisce te. N¨ªl an d¨ªfhoirmi¨² buan ar rubar perfluorinated leigheas ag Gn¨ªomhaire vulcanizing X-CSM agus s¨¢rocsa¨ªd ag teocht ard le c¨®ras vulcanizing triazine Nuair a thrasnascr¨² go ceimiceach resistant rubar, isocyanait triallyl (TAIC) mar ghn¨ªomhaire trasnasctha c¨²nta taispe¨¢nann air¨ªonna cuimsitheacha den scoth i dt¨¦arma¨ª air¨ªonna fisici¨²la agus friota¨ªocht teasa. Is f¨¦idir le taics dul ar imirce ¨® pholaim¨¦ir¨ª measctha agus claonadh a bheith acu copolymerize in imoibrithe trasnasctha. D¨¢ bhr¨ª sin, b¨ªonn tionchar aige ar phr¨®ise¨¢ilteacht an pholaim¨¦ir (mar shampla, ¨¦illi¨² an mh¨²nla), agus mar sin ¨²s¨¢idtear isocyanate uirea trimethyl (TMAIC) uaireanta in ionad TAIC. Is f¨¦idir feidhm¨ªocht d¨ªfhoirmi¨² buan comhbhr¨²ite a fheabhs¨² tr¨ª TMAIC n¨® TAIC a ¨²s¨¢id. Cuireann an modh seo moill beag¨¢n vulcanization, agus d¨¢ bharr strucht¨²r trasnasctha n¨ªos ordaithe le linn fhoirmle Mh¨®il¨ªneach trasnasctha ¨¢bhar rubair FFKM: Na cine¨¢lacha O-Rings a dh¨ªol LanHe Seals: Description Nitrile (NBR) O-fileanna An ¨¢bhar s¨¦alaithe is saoire agus is m¨® frithsheasmhach ola le haghaidh feidhmchl¨¢r ¨¦ags¨²la O-reann. D¨¦anann comhdh¨²ile Buna-N feidhmi¨² go maith i sreabh¨¢in sti¨²rtha cumhachta, hexane, toluene, g¨¢sail¨ªn, am ola, sreabh¨¢n hiodr¨¢lacha uisce-bhunaithe, agus hiodrocsa¨ªd s¨®idiam. T¨¢ caighde¨¢in ghr¨¢d bia ag EPDM O-fileanna, lena n-¨¢ir¨ªtear FDA CFR 21 177.2600, 3A, LFGB, EU1935: 2004/CE, GB4806. 2011-2016, is minic a ¨²s¨¢idtear in iarratais gaile bia, tionscal uisce agus seomra folctha, agus t¨¢ an friota¨ªocht ¨®z¨®in is fearr agus friota¨ªocht aimsire acu. Mar sin f¨¦in, n¨ª f¨¦idir ¨¦ a ¨²s¨¢id le ola n¨¢ le breosla toisc go dteipfidh s¨¦ an s¨¦ala tar ¨¦is leathn¨². O-fileanna Silicone (VMQ) O-oiri¨²nach le haghaidh teocht ¨ªseal agus ard (-50 ¡ã C ~ 230 ¡ã C). T¨¢ cobhsa¨ªocht ard teirmeach agus ocsa¨ªdi¨ªoch acu agus t¨¢ siad resistant do go leor ceimice¨¢n. ?s¨¢idtear go coitianta ¨¦ chun r¨®nta a dh¨¦anamh a thagann i dteagmh¨¢il le bia. O-Rings N¨ªtrile hidriginithe (HNBR) le hair¨ªonna meicni¨²la den scoth, go h¨¢irithe friota¨ªocht abrasion, le friota¨ªocht creimeadh den scoth, friota¨ªocht teannta, friota¨ªocht cuimilte agus tr¨¦ithe d¨ªfhoirmi¨² comhbhr¨²ite, t¨¢ s¨¦ d¨¦anta as rubar nitrile butadiene (NBR) hy
