Farashin PTFE, saboda taushinsa, babban rabo mai matsawa, mai sauƙi don siffar a cikin sararin samaniya mai girma uku, za'a iya shigar da shi cikin ƙananan ƙwayoyin cuta da lalacewa don gyarawa da toshe leaks, musamman a cikin haɗin acid, alkali, lalata da kayan aiki marasa ƙarfe, manyan. -Tasoshin diamita Tasirin yana da fice, kuma yana iya kare haɗin na'urar da kayan gaggautsa yadda ya kamata.
Farashin PTFE, saboda taushinsa, babban rabo mai matsawa, mai sauƙi don siffar a cikin sararin samaniya mai girma uku, za'a iya shigar da shi cikin ƙananan ƙwayoyin cuta da lalacewa don gyarawa da toshe leaks, musamman a cikin haɗin acid, alkali, lalata da kayan aiki marasa ƙarfe, manyan. -Tasoshin diamita Tasirin yana da fice, kuma yana iya kare haɗin na'urar da kayan gaggautsa yadda ya kamata.
Don na'urorin da ba na ƙarfe ba kamar gilashi, yumbu, graphite, robobi, da sauransu, yana da tasiri na ban mamaki.Yana iya ramawa da daidaita kurakuran lalacewa ta hanyar lahani, sarrafa injiniyoyi, nakasawa mai tsauri, rashin daidaituwa na shigarwa, da dai sauransu, daidaita ƙarfin preload ɗin da bai dace ba, kuma yadda ya kamata ya magance matsalolin zubar da ruwa na wurare daban-daban a ƙarƙashin yanayi mai rikitarwa.
Nau'in PTFE gaskets
1. Pure PTFE gasket
PTFE gaskets ne masu lebur, gaskets masu siffar V, zoben piston, gaskets bawul, da dai sauransu, waɗanda ake juya su ko yanke daga injina.Farashin PTFE, Farashin PTFE, kumaRahoton da aka ƙayyade na PTFE, wanda yake da juriya na lalata, yana hana tsufa, kuma mara amfani.Kyakkyawan halaye.Zai iya samun ƙarfin injina mai kyau tsakanin -100°C da 100°C.
Wani fasalin wannan samfurin shine cewa yana da tsabta.Ga wasu abubuwan da za su iya yin mu'amala da shi, tsantsar gaskets na PTFE ba zai haifar musu da wata gurɓatacciya ba.Wannan fa'idar ta sa ana amfani da shi sosai a abinci da magani.
2. Gyaran PTFE gasket
Wannan nau'in gas na ptfe ya haɗa da rukuni biyu, mai hoto cike da gilashin gilashi.
Gefen tetrafluoroethylene mai cike da graphite shine PTFE tare da graphite azaman filler don cikakken haɗaɗɗen uniform sannan kuma harbi mai zafi.Wannan PTFE gasket yana da kyau sosai sealing da compressibility.
Gilashin fiber-cikakken PTFE gaskets suna amfani da fiber gilashi azaman filler.Wannan abu yana da kyawawan kaddarorin dawowa kuma ya fi kyau fiye da kayan gargajiya a cikin aikin.Yana da juriya da juriya da sinadarai kuma ya dace sosai ga masana'antar takarda da abinci.
3. Fadada Gasket na PTFE
Fadada gaskets na PTFE na iya tsayayya da kwararar sanyi da rarrafe, kuma suna da fa'idar kasancewa cikin sauƙin shigarwa, musamman ikon jure yanayin zafi mara nauyi.Ayyukan rufewa na wannan kayan abu ne mai dogaro sosai, kuma yana da juriya ga fashewa.Ya dace musamman ga m saman.
8 abũbuwan amfãni na PTFE gasket
1. A PTFE gasket kanta yana da high lalata juriya, barga jiki aiki, high da kuma low-zazzabi juriya, da kuma cimma da kyau sealing yi.Ta hanyar canza ƙarfin tashin hankali na bel ɗin ƙarfe mai ɗaure, za'a iya canza yawa (taurin) na gasket ɗin da aka haɗa don saduwa da buƙatun aikace-aikace daban-daban.Ana amfani da shi sosai a cikin petrochemical, inji, wutar lantarki, ƙarfe, ginin jirgi, magani, makamashin atomic, da masana'antar sararin samaniya.
2. PTFE gaskets suna jure yanayin yanayi, kuma PTFE yana da mafi kyawun rayuwar tsufa tsakanin robobi.A PTFE gasket kanta yana da high lalata juriya, barga jiki aiki, high da kuma low-zazzabi juriya, kuma ya samu mai kyau sealing yi.Ana amfani da shi sosai a cikin man fetur, sinadarai, magunguna, wutar lantarki, da masana'antar karfe.
3. PTFE gasket ba ya bi.PTFE yana da mafi ƙanƙanta tashin hankali a tsakanin kayan aiki masu ƙarfi kuma baya bin kowane abu.
4. PTFE gaskets ne resistant zuwa low yanayin zafi da kuma da kyau inji taurin;ko da yawan zafin jiki ya ragu zuwa -196 ° C, za su iya kula da 5% elongation.Ya dace da sassan rufewa inda zafin jiki da matsa lamba suna canzawa sosai.Yana da madaidaicin abin rufewa don haɗin haɗin flange kamar bututu, bawul, famfo, masu musayar zafi, hasumiya, rami, da ramukan hannu.
5. Ayyuka da fa'idodin PTFE gaskets sune kamar haka.Matsakaici mai dacewa ya haɗa da kusan dukkanin abubuwan sinadaran kamar ruwa, mai, maganin acid, maganin alkali, da dai sauransu.
6. PTFE gasket ba mai guba bane kuma PTFE ba shi da ƙarfi a cikin jiki, kuma ba shi da wani mummunan halayen kamar yadda tasoshin jini da gabobin da aka dasa a cikin jiki na dogon lokaci.
7. PTFE gaskets suna da juriya ga lalata, ba su da ƙarfi ga yawancin sinadarai da kaushi, kuma suna iya jure wa ƙarfi acid da alkalis, ruwa da sauran kaushi na halitta daban-daban.Wannan gasket yana da kyau matsawa da juriya aiki, Multi-tashar sealing, da kuma wani kai-tighting aiki, wanda zai iya kawar da rinjayar matsa lamba, zazzabi canje-canje, da kuma inji vibration.
8. A karkashin babban zafin jiki, ƙananan zafin jiki, babban injin, girgiza girgiza, da sauran canje-canje na cyclical da yanayi daban-daban, kula da kyakkyawan aikin rufewa.Ta hanyar canza haɗin kayan haɗin gwiwa na gasket, ana iya magance matsalar lalacewar sinadarai na gasket ta kafofin watsa labarai daban-daban.Ba a haɗa saman flange ba, wanda ke sauƙaƙe kulawa da sauyawa.
9. PTFE gaskets ne resistant zuwa high yanayin zafi, da kuma PTFE za a iya amfani da a wani aiki zafin jiki na 250 ° C.
Wadanne dalilai ya kamata a yi la'akari lokacin zabar PTFE gaskets
Ana amfani da gaskets na PTFE a cikin nau'ikan kayan aiki da yawa.Domin tabbatar da kyakkyawan aiki, abubuwan da za a yi la'akari da su a cikin zaɓin gaskets na PTFE sune kamar haka:
1. Matsakaici: Tambayar matsakaicin abu ce mai sauƙi.Kawai buƙatar kula da wasu ƙananan tambayoyi na musamman, irin su silinda aikin ƙarfe sau da yawa suna amfani da ruwa-glycol da phosphate ester hydraulic man.
2. Zazzabi: Ya kamata a yi la'akari da NBR mai sanyi lokacin da zafin jiki ya kasance 20 ℃ - 40 ℃.Kayan NBR na gaba ɗaya zai taurare kayan a ƙarƙashin yanayin ƙarancin zafi, yana haifar da ɗigo.
3. Tasirin Tasiri: Lokacin da aka fara aikin injin ɗin da rufewa, tasirin tasirinsa ya fi ƙarfin aiki na yau da kullun, don haka ana amfani da shi azaman babban hatimi tare da juriya mai tasiri da matsi tazara HBY ko SPGW tare da juriya na matsa lamba. har zuwa 70MPA.
Lokacin aikawa: Agusta-06-2020