PTFE Products da halaye

Kayayyakin inji na PTFE ba su da ƙarfi idan aka kwatanta da sauran robobi, kuma ana iya amfani da su akan kewayon zafin jiki mai faɗi na -100°F zuwa +400°F (-73°C zuwa 204°C).).Yana da kyawawan kaddarorin zafin zafi da na lantarki da ƙarancin juzu'i.PTFE yana da yawa kuma ba za a iya sarrafa shi ta hanyar narkewa ba.PTFE dole ne a matsa kuma a sanya shi don samar da siffofi masu amfani.

PTFE Sheet, Rod, & Tube- PTFE kwanciyar hankali na thermal shine ɗayan mafi kwanciyar hankali na kayan filastik.Babu rarrabuwar kawuna a 260°C, don haka PTFE, a wannan zafin jiki, har yanzu yana da mafi yawan kaddarorinsa.Bazuwar abin godiya yana farawa a sama da 400 ° C.Matsayin Canji na PTFE-Geometry na kwayoyin PTFE (tsarin crystalline) ya bambanta da zafin jiki.Akwai wurare daban-daban na mika mulki, tare da mafi mahimmanci sune masu zuwa: cewa a 19 ° C daidai da gyare-gyaren wasu kaddarorin jiki da kuma cewa a 327 ° C wanda ya dace da bacewar tsarin crystalline: PTFE yana ɗaukar wani al'amari amorphous. kiyaye nau'in siffar geometric na kansa.Farashin PTFE-Madaidaicin haɓaka haɓakar haɓakar thermal na layi ya bambanta da zafin jiki.Bugu da ƙari, saboda daidaitawar da tsarin aiki ya haifar, sassan PTFE gabaɗaya anisotropic ne;a wasu kalmomi, ƙididdiga na haɓakawa ya bambanta kuma dangane da shugabanci.Bayani: PTFE Thermal conductivity-Ma'auni na thermal conductivity na PTFE baya bambanta da zafin jiki.Yana da ingantacciyar tsayi, don haka ana iya ɗaukar PTFE azaman kayan rufewa mai kyau.Haɗuwa da filaye masu dacewa suna inganta haɓakar zafin jiki (duba cike PTFE).PTFE Musamman zafi-Takamaiman zafi, da kuma abun ciki na zafi (enthalpy) yana ƙaruwa tare da zafin jiki.Halin PTFE a gaban wakilan kasashen wajePTFE Juriya ga jami'an sinadarai-PTFE a zahiri ba shi da ƙarfi a kan sanannun abubuwa da mahadi.Ana kai hari ne kawai ta hanyar ƙarfe na alkaline a cikin matakin farko, ta Chlorine trifluoride da ta Fluorine na farko a yanayin zafi da matsi.PTFE Magance Juriya-PTFE ba shi da narkewa a kusan duk abubuwan da ake narkewa a yanayin zafi har zuwa kusan 300 ° C.Hydrocarbons masu fluorinated suna haifar da wani kumburi wanda duk da haka yana iya juyawa;wasu mai sosai mai fulorinated, a yanayin zafi sama da 300°C, suna yin wani tasiri na narkewa akan PTFE.Juriya na PTFE ga jami'an yanayi da haske-Gwajin gwaji na PTFE, wanda aka fallasa sama da shekaru ashirin zuwa mafi yawan yanayin yanayi, ba su nuna wani canji na halayen halayen su ba.PTFE Juriya ga radiations-High makamashi radiations ayan haifar da karya na PTFE kwayoyin, sabõda haka, juriya da samfurin zuwa radiations ne wajen matalauta.PTFE iskar gas-The permeability na PTFE yayi kama da sauran kayan filastik.Ƙwararren ba ya dogara, a fili, kawai a kan kauri da matsa lamba, amma har ma a kan dabarun aiki.Jiki - kayan aikin injiniyaTenesile da kuma tena abinci kaddarorin wadannan kaddarorin su ne zuwa babban mataki da ke tasiri da ayyukan aiki da kuma foda mai amfani.PTFE, duk da haka, ana iya amfani da shi akai-akai a yanayin zafi har zuwa 260 ° C, yayin da yake da wani nau'in filastik mai matsawa a yanayin zafi kusa da cikakken Zero.Sassaucin PTFE-PTFE yana da sauƙin sassauƙa kuma baya karyewa lokacin da aka fuskanci matsin lamba na 0,7 N/mm2 bisa ga ASTM D 790. Flexural modules shine kusan 350 zuwa 650 N/mm2 a zazzabi na ɗaki, kusan 2000 N/mm2 a -80°C , game da 200 N/mm2 a 100 ° C kuma game da 45 N/mm2 a 260 ° C.Kaddarorin tasiri-PTFE yana da halayen juriya sosai kuma a ƙananan yanayin zafi.Ƙwaƙwalwar filastik-Idan wani yanki na PTFE ya kasance mai jujjuyawa ko matsawa a ƙasa da ma'anar yawan amfanin ƙasa, wani ɓangare na nakasar da aka samu ya kasance (a matsayin nakasar dindindin) bayan katsewar matsalolin, tare da sakamakon cewa an haifar da wasu nau'i a cikin yanki.Idan yanki ya sake zafi, waɗannan nau'ikan suna iya sakin kansu a cikin yanki wanda zai dawo da sigarsa ta asali.Wannan kadarorin PTFE ana nuna su da yawa azaman “ƙwaƙwalwar filastik” kuma ana amfani da ita a aikace-aikace daban-daban.Har ila yau, yawancin samfuran da aka kammala, saboda tsarin canji, suna da irin wannan nau'i, zuwa wani mataki.Lokacin da ake so a sami sassan da aka gama da su daidai gwargwado a yanayin zafi mai girma, yana yiwuwa a sanya sassan zuwa zafin jiki na 280 ° C na awa ɗaya kowane 6 mm na kauri sannan a kwantar da su a hankali.Sassan da aka samu ta wannan hanya kusan ba su da cikakkiyar 'yanci daga nau'ikan ciki kuma gabaɗaya an san su da kayan "conditioned" ko "thermostabilised" abu.Tauri-Taurin Shore D, wanda aka auna bisa ga hanyar ASTM D 2240, yana da ƙima tsakanin D50 da D60.Dangane da DIN 53456 (Load 13,5 Kg don 30 sec) taurin yana motsawa tsakanin 27 da 32 N/mm2.Tashin hankali-PTFE yana da mafi ƙarancin juzu'i na duk kayan aiki masu ƙarfi;tsakanin 0.05 zuwa 0.09:* Matsakaicin madaidaicin juzu'i masu ƙarfi kusan daidai suke, ta yadda babu wani abin kamawa ko zamewar sanda* lokacin haɓaka kaya, ƙimar juzu'i yana raguwa har sai an kai ga daidaiton ƙima* ƙimar juzu'i yana ƙaruwa tare da saurin* juzu'in juzu'i ya kasance akai-akai a bambancin zafin jiki.Saka-Sawawar ya dogara da yanayin sauran shimfidar zamewa kuma a fili ya dogara da sauri da lodi.Ana rage lalacewa sosai lokacin daɗa abubuwan da suka dace zuwa PTFE (duba cike PTFE).Kayan lantarkiFarashin PTFE-PTFE kyakkyawan insulator ne da dielectric mai daraja kamar yadda aka nuna ta hanyar bayanan dangi da aka ruwaito a cikin takaddun bayanai kuma yana kiyaye waɗannan halaye a cikin babban kewayon yanayin muhalli, yanayin zafi da mitoci.Dielectric ƙarfi- Ƙarfin dielectric na PTFE ya bambanta da kauri kuma yana raguwa tare da ƙara yawan mita.Yana kasancewa a zahiri har zuwa 300 ° C kuma baya bambanta ko da bayan dogon magani a yanayin zafi (watanni 6 a 300 ° C).Hakanan ya dogara da hanyoyin canji.Dielectric akai-akai da kuma dissipation factor -PTFE yana da ƙananan ƙarancin dielectric akai-akai da ƙididdiga masu rarrabawa;waɗannan ba su bambanta ba har zuwa 300 ° C, a cikin mitar mita har zuwa 109 Hz ko da bayan tsawaita jiyya na thermal (watanni 6 a 300 ° C).A dielectric akai-akai, dissipation factor kazalika da girma resistivity da surface resistivity, dauke a matsayin mai zaman kanta daga canji tafiyar matakai.Arc-juriya-PTFE yana da kyakkyawan juriya ga baka.Lokacin juriya na baka bisa ga ASTM D 495 shine 700 sec.Bayan tsawaita aiki babu alamun cajin saman.Corona tasirin juriya-Fitowar da tasirin corona ke haifarwa na iya haifar da zazzagewar saman PTFE wanda, duk da haka, ana nuna shi azaman insulator mai dacewa idan akwai bambance-bambance masu yawa.Abubuwan da ke samaTsarin kwayoyin halitta na PTFE yana kawo wa saman sa babban anti-adhesiveness.Saboda wannan dalili waɗannan saman ba su da ɗanɗano ruwa, kusurwar lamba tare da ruwa yana kusan 110 ° kuma yana yiwuwa a tabbatar da cewa, bayan tashin hankali na 20 dine/cm, ruwan ba ya sake jika PTFE.Magani na musamman na etching yana sa saman zama mai ɗaurewa da damshi.