Zithunzi za PTFE, chifukwa cha kufewa kwake, chiŵerengero chachikulu choponderezedwa, chosavuta kuumba mu malo atatu-dimensional, akhoza kuikidwa mu ming'alu yaying'ono ndi kuwonongeka kwa kukonzanso ndi kutulutsa kutayikira, makamaka kugwirizana kwa asidi, alkali, dzimbiri ndi zida zopanda zitsulo, zazikulu. -diameter ziwiya Zotsatira zake ndizabwino kwambiri, ndipo zimatha kuteteza kulumikizidwa kwa chipangizo cha zida zophulika.
Zithunzi za PTFE, chifukwa cha kufewa kwake, chiŵerengero chachikulu choponderezedwa, chosavuta kuumba mu malo atatu-dimensional, akhoza kuikidwa mu ming'alu yaying'ono ndi kuwonongeka kwa kukonzanso ndi kutulutsa kutayikira, makamaka kugwirizana kwa asidi, alkali, dzimbiri ndi zida zopanda zitsulo, zazikulu. -diameter ziwiya Zotsatira zake ndizabwino kwambiri, ndipo zimatha kuteteza kulumikizidwa kwa chipangizo cha zida zophulika.
Pazida zopanda zitsulo monga galasi, ceramics, graphite, mapulasitiki, ndi zina zotero, zimakhala ndi zotsatira zodabwitsa.Itha kubweza ndikuwongolera zolakwika zomwe zidachitika chifukwa cha zolakwika, kukonza kwamakina, kupindika kosasunthika, kuyika molakwika, ndi zina zambiri, kuwongolera mphamvu yojambulitsa yosagwirizana, ndikuthana bwino ndi zovuta zotuluka m'malo osiyanasiyana m'malo ovuta.
Mitundu ya PTFE gaskets
1. Koyera PTFE gasket
Ma gaskets oyera a PTFE ndi ma gaskets athyathyathya, ma gaskets ooneka ngati V, mphete za pisitoni, ma gaskets a mpira, ndi zina zotero, zomwe zimatembenuzidwa mwamakina kapena kudula.Chithunzi cha PTFE, PTFE chubu,ndiChithunzi cha PTFE, yomwe imalimbana ndi dzimbiri, yoletsa kukalamba, komanso yosayendetsa.Makhalidwe abwino.Ikhoza kukhala ndi mphamvu zamakina zabwino pakati pa -100°C ndi 100°C.
Chinthu china cha mankhwalawa ndi chakuti ndi choyera.Pazinthu zina zomwe zingakhudzidwe nazo, ma gaskets oyera a PTFE sangawayipitse.Ubwinowu umapangitsa kuti azigwiritsidwa ntchito kwambiri muzakudya ndi zamankhwala.
2. Kusinthidwa PTFE gasket
Mtundu uwu wa PTFE gasket umaphatikizapo magulu awiri, graphite wodzazidwa ndi galasi CHIKWANGWANI.
Tetrafluoroethylene yodzaza ndi graphite ndi PTFE yokhala ndi graphite ngati chodzaza ndi yunifolomu yosakanikirana ndikuwotcha kwambiri.Gasket iyi ya PTFE ili ndi kusindikiza kwabwino kwambiri komanso kulimba.
Magalasi odzaza ndi fiber PTFE gaskets amagwiritsa ntchito ulusi wagalasi ngati zodzaza.Nkhaniyi ili ndi katundu wabwino wobwezeretsa ndipo ndi yabwino kusiyana ndi zipangizo zamakono zomwe zimagwira ntchito.Ndizosavala komanso zosamva mankhwala ndipo ndizoyenera kwambiri kumakampani opanga mapepala ndi zakudya.
3. Anawonjezera PTFE Gasket
Wowonjezera PTFE gaskets akhoza kukana ozizira otaya ndi kukwawa, ndi mwayi kukhala zosavuta kukhazikitsa, makamaka luso kupirira kopitilira muyeso-otsika kutentha.Ntchito yosindikiza ya nkhaniyi ndi yodalirika kwambiri, komanso imagonjetsedwa ndi kuphulika.Ndiwoyenera makamaka pamalo ovuta.
Ubwino 8 wa PTFE gasket
1. The PTFE gasket palokha ali mkulu dzimbiri kukana, khola thupi ntchito, mkulu ndi otsika-kutentha kukana, ndipo amakwaniritsa bwino kusindikiza ntchito yake.Posintha mphamvu yamphamvu ya lamba wachitsulo wotsekedwa, kachulukidwe (kuuma) kwa gasket yotsekedwa kungasinthidwe kuti akwaniritse zosowa za ntchito zosiyanasiyana.Amagwiritsidwa ntchito kwambiri mu petrochemical, makina, mphamvu yamagetsi, zitsulo, kupanga zombo, mankhwala, mphamvu ya atomiki, ndi mafakitale apamlengalenga.
2. PTFE gaskets ndi nyengo zosagwira, ndipo PTFE ali bwino ukalamba moyo pakati mapulasitiki.The PTFE gasket palokha ali mkulu dzimbiri kukana, khola thupi ntchito, mkulu ndi otsika-kutentha kukana, ndipo akwaniritsa bwino kusindikiza ntchito.Amagwiritsidwa ntchito kwambiri m'mafakitale a petroleum, mankhwala, mankhwala, magetsi, ndi zitsulo.
3. The PTFE gasket si kutsatira.PTFE ili ndi zovuta zazing'ono kwambiri pakati pa zida zolimba ndipo sizimamatira kuzinthu zilizonse.
4. PTFE gaskets kugonjetsedwa ndi kutentha otsika ndi wabwino makina toughness;ngakhale kutentha kutsika mpaka -196 ° C, amatha kusunga kutalika kwa 5%.Ndikoyenera kusindikiza zigawo zomwe kutentha ndi kupanikizika kumasintha kwambiri.Ndi chinthu chosindikizira chokhazikika pamalumikizidwe a flange monga mapaipi, ma valve, mapampu, zosinthira kutentha, nsanja, manhole, ndi mabowo am'manja.
5. Ntchito ndi ubwino wa PTFE gaskets ndi motere.Sing'anga yoyenera imaphatikizapo pafupifupi zigawo zonse zamankhwala monga madzi, mafuta, yankho la asidi, yankho la alkali, ndi zina.
6. PTFE gasket si poizoni ndi PTFE ndi physiologically inert, ndipo alibe chokhwima monga mitsempha ya yokumba ndi ziwalo anaika mu thupi kwa nthawi yaitali.
7. PTFE gaskets kugonjetsedwa ndi dzimbiri, ndi inert kwa mankhwala ambiri ndi zosungunulira, ndipo akhoza kupirira zidulo amphamvu ndi alkalis, madzi ndi zosiyanasiyana solvents organic.Gasket iyi imakhala ndi ntchito yabwino yoponderezedwa ndi kulimba mtima, kusindikiza njira zambiri, ndi ntchito ina yodzilimbitsa yokha, yomwe imatha kuthetsa kukakamiza, kusintha kwa kutentha, ndi kugwedezeka kwa makina.
8. Pa kutentha kwambiri, kutentha pang'ono, vacuum mkulu, kugwedezeka kugwedezeka, ndi kusintha kwina kwa cyclical ndi zovuta zosiyanasiyana, sungani ntchito yake yabwino yosindikiza.Mwa kusintha kuphatikiza kwa zinthu za gasket, vuto la kukokoloka kwa mankhwala a gasket ndi media zosiyanasiyana litha kuthetsedwa.Kumtunda kwa flange sikumangika, komwe kumathandizira kukonza ndikusintha.
9. PTFE gaskets ndi kugonjetsedwa ndi kutentha, ndi PTFE angagwiritsidwe ntchito pa kutentha ntchito 250 ° C.
Ndi zinthu ziti zomwe ziyenera kuganiziridwa posankha ma gaskets a PTFE
PTFE gaskets ntchito mitundu yambiri ya zida.Pofuna kuonetsetsa kuti ntchito ikuyenda bwino, zinthu zomwe ziyenera kuganiziridwa posankha ma gaskets a PTFE ndi awa:
1. Yapakatikati: Funso la sing'anga ndi losavuta.Kungofunika kulabadira mafunso ena apadera ang'onoang'ono, monga masilindala azitsulo nthawi zambiri amagwiritsa ntchito madzi-glycol ndi mafuta a phosphate ester hydraulic.
2. Kutentha: NBR yosamva kuzizira iyenera kuganiziridwa pamene kutentha kuli 20～-40℃.Zinthu zonse za NBR zidzaumitsa zinthuzo pansi pa kutentha kochepa, zomwe zimapangitsa kutayikira.
3. Kuthamanga kwa mphamvu: Pamene makina omanga amayambika ndi kutsekedwa, kupanikizika kwake kumakhala kwakukulu kwambiri kuposa kupanikizika kwanthawi zonse, choncho nthawi zambiri amagwiritsidwa ntchito ngati chisindikizo chachikulu chokhala ndi mphamvu yotsutsa ndi kufinya kusiyana kwa HBY kapena SPGW mpaka 70MPA.
Nthawi yotumiza: Aug-06-2020