A matsayin ƙwararrun masana'anta na PTFE tef ɗin mannewa da samfuran rufi masu alaƙa, Jiangsu Aokai New Materials Technology Co., Ltd. yana ba da mahimman ilimin. Duk da yake PTFE high-zazzabi tef yana da daraja don kyakkyawan ingancin dielectric Properties da thermal kwanciyar hankali, matsananci high-mita da high-voltage aiki yanayin gabatar da mahara m kasada.
Fahimtar waɗannan haɗari - ciki har da tsufa mai zafi, lalata wutar lantarki, hasara mai yawa, da abubuwan muhalli - yana da mahimmanci don ƙirar tsarin dogara.
Hatsarin Ƙarfin Lantarki
High-Voltage Breakdown: PTFE tapes have limited dielectric breakdown resistance. Misali, tef mai jimlar kauri 0.11mm na iya samun raguwar ƙarfin lantarki na kusan 6.1kV. Rashin isashen kauri ko ƙazanta na ciki (pinholes, gurɓatawa) na iya haifar da rushewar wutar lantarki cikin sauƙi da gazawar rufewa.
Zubar da Juzu'i (Cutar Korona): A cikin mahalli mai ƙarfi, gurɓataccen ƙasa (ƙura, tabon mai) da ƙananan raƙuman iska na ciki suna haifar da wuraren tattara wutar lantarki, suna haifar da fitarwar corona. Ci gaba da fitarwa na dogon lokaci sannu a hankali yana lalata rufin rufin, yana haifar da gazawar da wuri.
Lalacewar Insulation daga Abubuwan Muhalli:
Humidity: Lokacin da dangi zafi ya wuce 85%, da surface resistivity na PTFE na iya sauke sharply - daga 10⊃1;⁷Ω zuwa kusa da 10⊃1;⊃2;Ω - da rushewar wutar lantarki na iya raguwa da 30% zuwa 50%.
Gurɓatawa: ƙura mai ɗaurewa ko fesa gishiri a saman tef ɗin yana samar da gadoji, haifar da zubewar hanyoyin yanzu.
A cikin kayan aikin lantarki mai ƙarfi, ƙarfin dielectric na kaset na PTFE ba ƙayyadadden ƙima bane amma ya dogara sosai akan yanayin aikace-aikacen. Don maki masu jure wa corona, masana'antun galibi suna haɗa abubuwan da ke cikin inorganic kamar mica ko yumbu a cikin matrix na PTFE. Waɗannan filaye suna ƙirƙirar ƙananan mu'amala da yawa waɗanda ke tarwatsa tattara caji da kuma hana aikin fitarwa na ɓangare. Lokacin zabar tef ɗin PTFE don manyan injin inverter masu ƙarfin lantarki (misali, 6kV zuwa aji 10kV), ana ba da shawarar yin amfani da tef ɗin PTFE mai tsayayyar corona tare da kauri na aƙalla 0.18mm da kuma tabbatar da ƙarancin fitarwa na farko (PDIV) a ƙarƙashin yanayin yanayin aiki na ainihi, kamar yadda PDIV yawanci yana raguwa da 21-50 ° C idan aka kwatanta da zafin jiki na 20-30%.
Hatsarin Ƙarfafa Ƙwararru
Babban Zazzabi: Kaset na PTFE na iya aiki akai-akai a tsaye a ci gaba da zafin jiki na 260 ° C. Duk da haka, da zarar zafin jiki ya wuce 250 ° C (musamman kusa da 300 ° C), sassan kwayoyin zasu fara rubewa. Wannan bazuwar yana rage ƙarfin dielectric sosai kuma yana haifar da haɗarin gazawar rufewa.
Thermal-Oxygen Synergistic Effect: Haɗuwa da babban zafin jiki da oxygen yana haɓaka tsufa na abu. A ƙarƙashin yanayi mai zafi da ɗanɗano, lalacewar aikin juriya na ƙarfin lantarki na iya ƙaruwa da 30% zuwa 50% idan aka kwatanta da bushewar zafi kaɗai.
Lokacin da ake amfani da tef ɗin PTFE a cikin rufaffiyar switchgear ko taswira windings inda iskar oxygen ke da iyaka, yanayin tsufa na zafi ya bambanta sosai da yanayin buɗe iska. Bincike ya nuna cewa yawan bazuwar thermal na PTFE a cikin nitrogen ya kai kusan kashi ɗaya cikin goma na abin da ke cikin iska a yanayin zafi ɗaya. Wannan yana nufin cewa don abubuwan haɗin wutar lantarki masu ƙarfi, tef ɗin PTFE na iya cimma tsawon rayuwar sabis koda a yanayin zafi kaɗan sama da 260°C. Duk da haka, da zarar bazuwar ya fara, samfurori irin su carbonyl fluoride da perfluoroisobutylene suna da guba sosai kuma suna lalata lambobin ƙarfe. Sabili da haka, yana da mahimmanci don tabbatar da cewa yawan zafin jiki na aikace-aikacen ya kasance da kyau a ƙasa da ƙaƙƙarfan ɓarna - ana ba da shawarar tsaro na 30-50 ° C don mahimmancin babban ƙarfin lantarki.
Hatsarin Halaye Mai Girma
Rage sigina da Hargitsi: Dielectric akai-akai (Dk) na daidaitaccen PTFE ya tashi daga 2.0 zuwa 2.6. Kayayyakin da ke da juzu'i mai yawa a cikin Dk na iya haifar da attenuation da karkatar da sigina masu tsayi yayin watsawa - batu mai mahimmanci don aikace-aikacen RF da microwave.
Tasirin Ƙarfafa Zafin: PTFE yana da ƙarancin asarar tangin dielectric (tan δ), gabaɗaya ƙasa da 0.0025. Duk da haka, idan yanayin asarar ya yi yawa (saboda ƙazanta ko aiki mara kyau), za a haifar da zafi mai yawa a ƙarƙashin filin lantarki mai girma. Wannan tasirin dumama kai yana haɓaka tsufa na abu kuma yana iya haifar da guduwar thermal.
Hatsarin Daidaita Makani & Muhalli
Lalacewar Damuwa na Injini: Tsayawa tashe-tashen hankula da gogayya yayin shigarwa ko aiki na iya haifar da ƙananan fashe-fashe da ɓarna a cikin kayan, yana lalata aikin rufewa gabaɗaya. Ya kamata a nisantar da kaifi mai kaifi ko gefuna.
Chemical & Radiation Lalacewa: Ƙarfin watsa labarai masu lalata kamar narkakkar alkali karafa da chlorinated hydrocarbons, kazalika da wuce kima high-makamashi radiation (fiye da 10⁴ Gy), zai lalata kwayoyin tsarin na PTFE da sharply rage dielectric ƙarfi.
Rashin Ganewa: Zaɓin manne mara kyau (misali, adhesives na tushen acrylic) na iya yin laushi da rasa mannewa a ƙarƙashin yanayin zafi mai zafi, haifar da maye gurbin tef, kwancewa, ko rarrafe - musamman matsala a aikace-aikacen tsaye ko girgiza.
Karancin zafin jiki: Yawancin kaset na PTFE sun rasa sassauci kuma su zama masu karye lokacin da zafin jiki ya faɗi ƙasa -70°C. Duk da yake ba kasafai ba a aikace-aikacen lantarki, wannan yana da mahimmanci ga kayan aikin waje ko na sararin sama waɗanda ke fuskantar matsanancin sanyi.
Kammalawa - Zaɓin Haɗari-Are yana tabbatar da dogaro
Yin amfani da tef ɗin mannewa na PTFE a cikin babban ƙarfin lantarki da aikace-aikacen mitoci mai girma yana buƙatar yin la'akari da abubuwan haɗari masu yawa. Ta hanyar fahimtar iyakokin ƙarfin lantarki, halayen tsufa na zafi, manyan kaddarorin dielectric, da halayen muhalli, injiniyoyi za su iya zaɓar madaidaicin tef ɗin - ko neman mafita na musamman - don guje wa gazawar da wuri.
A matsayin amintacce PTFE high-zazzabi tef manufacturer , Aokai yana ba da samfuran da aka kera don buƙatar aikace-aikacen rufin lantarki a cikin masana'anta mai rufi na PTFE, bel mai ɗaukar PTFE, bel ɗin raga na PTFE, tef ɗin fim na PTFE, da tef ɗin fiberglass PTFE.
ne ya samar da abun cikin da ke sama. Jiangsu Aokai New Materials Technology Co., Ltd
Don cikakkun sigogin fasaha, mafita aikace-aikacen, da sabis na musamman don samfuranmu masu cikakken kewayon ciki har da PTFE high zafin jiki zane, PTFE high zafin jiki tef, PTFE high zafin jiki raga bel, sumul fusing inji bel, guda-gefe PTFE masana'anta, high zafin jiki resistant conveyor bel da zafi-resistant fiberglass zane , da fatan za a tuntube mu da yardar kaina:
Mun tsaya ga falsafar kasuwanci na ƙwararru da mutunci, kuma mun sadaukar da kai don samar da amintaccen mafita guda ɗaya da sabis na tunani ga duk abokan ciniki.
