Njengomkhiqizi ochwepheshe we Itheyiphu yokunamathisela ye-PTFE kanye nemikhiqizo yokufakelwa ehlobene, i-Jiangsu Aokai New Materials Technology Co., Ltd. yabelana ngolwazi olubalulekile. Nakuba itheyiphu yokushisa ephezulu ye-PTFE ihlonishwa ngezakhiwo zayo ezinhle kakhulu ze-dielectric kanye nokuzinza kokushisa, izimo zokusebenza ezinokhahlo eziphezulu kanye ne-high-voltage yokusebenza kwethula izingozi eziningi ezingaba khona.
Ukuqonda lezi zingozi - ezihlanganisa ukuguga okuphezulu kwezinga lokushisa, ukuwohloka kukagesi, ukulahleka kwe-high-frequency, nezici zemvelo - kubalulekile ekwakhiweni kwesistimu okuthembekile.
Izingozi Zamandla Kagesi
I-High-Voltage Breakdown: Amateyipu e-PTFE anokumelana nokuqhekeka kwe-dielectric okulinganiselwe. Isibonelo, itheyiphu enogqinsi oluphelele ongu-0.11mm ingase ibe ne-voltage yokuwohloka ecishe ibe ngu-6.1kV. Ukushuba okunganele noma ukungcola kwangaphakathi (amaphinifa, ukungcola) kungabangela kalula ukuwohloka kwe-voltage ephezulu kanye nokwehluleka kokufakwa kwensimbi.
Ukukhipha Ingxenye (Ukukhishwa Kwe-Corona): Ezindaweni ezinama-voltage aphezulu, ukungcola okungaphezulu (uthuli, amabala kawoyela) kanye nezikhala ezincane zomoya zangaphakathi zidala izindawo zokugxilisa amandla kagesi, okubangela ukuphuma kwe-corona. Ukukhishwa okuqhubekayo kwesikhathi eside kancane kancane kuguguleka isendlalelo se-insulating, okuholela ekuhlulekeni ngaphambi kwesikhathi.
Ukuwohloka kwe-Insulation kusuka ku-Environmental Factors:
Umswakamo: Uma umswakama ohlobene udlula u-85%, ukumelana nokumelana kwe-PTFE kungehla kakhulu – ukusuka ku-10⊃1;⁷Ω kuye cishe ku-10⊃1;⊃2;Ω – futhi i-voltage ephukile ingase yehle ngo-30% ukuya ku-50%.
Ukungcola: Uthuli oluyi-conductive noma isifutho sikasawoti endaweni ye-tape sakha amabhuloho ahambayo, okwenza izindlela zamanje ezivuzayo.
Emishinini kagesi enamandla amakhulu, amandla e-dielectric amateyipu e-PTFE akulona inani elingashintshi kodwa ancike kakhulu ezimeni zohlelo. Kumamaki amelana ne-corona, abakhiqizi bavame ukufaka izigcwalisi ezingaphili njenge-mica noma izinhlayiya ze-ceramic ku-matrix ye-PTFE. Lezi zihlungi zidala i-micro-interface eminingi ehlakaza ukugxila kweshaja futhi icindezele umsebenzi wokukhipha ingxenye. Lapho ukhetha itheyiphu ye-PTFE yamamotho wokushintsha amandla kagesi aphezulu (isb, ikilasi le-6kV ukuya ku-10kV), kuyanconywa ukuthi usebenzise itheyiphu ye-PTFE engamelana ne-corona enogqinsi okungenani elingu-0.18mm futhi uqinisekise i-voltage yokuqalisa yokukhipha amandla (PDIV) ngaphansi kwamazinga okushisa angempela okusebenza, njengoba i-PDIV ngokuvamile yehla ngo-530 igumbi uma iqhathaniswa no-20° C uma iqhathaniswa no-21%.
Izingozi Zokuzinza Ezishisayo
Ukuguga Kwezinga Lokushisa Eliphezulu: Amateyipu e-PTFE ngokuvamile angasebenza ngokuzinzile ezingeni lokushisa eliqhubekayo elingu-260°C. Nokho, lapho izinga lokushisa selingaphezu kuka-250°C (ikakhulukazi eduze kuka-300°C), amaketanga amangqamuzana aqala ukubola. Lokhu kubola kunciphisa kakhulu amandla e-dielectric futhi kudala izingozi zokuhluleka kokushisa.
I-Thermal-Oxygen Synergistic Effect: Inhlanganisela yokushisa okuphezulu nomoya-mpilo kusheshisa ukuguga kwezinto. Ngaphansi kwezimo ezishisayo nezinomswakama, umonakalo ekusebenzeni kokumelana ne-voltage ungakhuphuka ngo-30% ukuya ku-50% uma kuqhathaniswa nokushisa okomile kukodwa.
Uma i-PTFE tape isetshenziswa ku-switchgear evalekile noma emawindini e-transformer lapho ukunikezwa komoyampilo kunomkhawulo, ukuziphatha kokuguga okushisayo kwehluka kakhulu ezimeni zomoya ovulekile. Ucwaningo lubonisa ukuthi izinga lokubola okushisayo kwe-PTFE ku-nitrogen cishe ingxenye eyodwa kweshumi yaleyo emoyeni ngezinga lokushisa elifanayo. Lokhu kusho ukuthi ezingxenyeni zamandla kagesi aphezulu ezivalwe nge-hermetically, itheyiphu ye-PTFE ingafinyelela impilo ende yesevisi ngisho emazingeni okushisa angaphezu kuka-260°C. Kodwa-ke, uma ukubola sekuqalile, imikhiqizo ephumayo efana ne-carbonyl fluoride ne-perfluoroisobutylene inobuthi obukhulu futhi igqwala ezintweni ezithintana nensimbi. Ngakho-ke, kubalulekile ukuqinisekisa ukuthi izinga lokushisa lokufaka isicelo lihlala lingaphansi komkhawulo wokubola - umkhawulo wokuphepha ongu-30-50 ° C uyanconywa ukuze kufakwe amandla kagesi aphezulu.
Izingozi Zesimo Semvamisa Ephezulu
Ukunakwa Kwesiginali Nokuhlanekezela: I-dielectric constant (Dk) ye-PTFE ejwayelekile isukela ku-2.0 kuya ku-2.6. Imikhiqizo echezuke ngokwedlulele ku-Dk ingabangela ukuncishiswa nokuhlanekezela amasignali amaza aphezulu ngesikhathi sokudlulisa - inkinga ebucayi yezinhlelo zokusebenza ze-RF ne-microwave.
Umphumela Wokukhiqiza Ukushisa: I-PTFE ine-tangent yokulahleka kwe-dielectric ephansi kakhulu (tan δ), ngokuvamile engaphansi kuka-0.0025. Kodwa-ke, uma isici sokulahlekelwa siphezulu kakhulu (ngenxa yokungcola noma ukucubungula okungalungile), ukushisa okudlulele kuzokwenziwa ngaphansi kwenkambu kagesi enemvamisa ephezulu. Lo mphumela wokuzifudumeza usheshisa ukuguga kwezinto futhi ungaholela ekubalekeni okushisayo.
Izingozi Zokuguquguquka Kwemishini Nezemvelo
Ukulimala Kwengcindezi Komshini: Ukushuba okuqinile nokungqubuzana phakathi nokufakwa noma ukusebenza kungase kubangele imifantu emincane kanye nokuhuzuka ngaphakathi kokokusebenza, kulimaza ukusebenza kokufakwa okuphelele. Ukugoba okucijile noma imiphetho kufanele kugwenywe.
I-Chemical & Radiation Corrosion: Imidiya egqwalayo enamandla njengezinsimbi ze-alkali ezincibilikisiwe nama-hydrocarbons ane-chlorinated, kanye nemisebe yamandla aphezulu ngokweqile (ngaphezu kuka-10⁴ Gy), izobhubhisa ukwakheka kwamangqamuzana e-PTFE futhi inciphise ngokucijile amandla ayo e-dielectric.
Ukuhluleka Kwezinto Ezinamathelayo: Ukukhetha okunamathelayo okungafanele (isb., izinto zokunamathisela ezisekelwe ku-acrylic) zingathambisa futhi zilahlekelwe ukunamathela ngaphansi kwezinga lokushisa eliphezulu, kubangele ukususwa kwetheyiphu, ukuqaqa, noma ukukhasa - kube yinkinga ikakhulukazi ezinhlelweni ezima mpo noma ezidlidlizayo.
I-Low-Temperature Brittleness: Amateyipu amaningi e-PTFE alahlekelwa ukuguquguquka futhi aba brittle lapho izinga lokushisa lehla ngaphansi -70°C. Nakuba kungavamile ezisetshenziswa zikagesi, lokhu kubalulekile ezinsizeni zangaphandle noma zasemkhathini ezichayeke kubanda kakhulu.
Isiphetho - Ukukhetha Okuqaphela Ngobungozi Kuqinisekisa Ukwethembeka
Ukusebenzisa itheyiphu yokunamathisela ye-PTFE ku-high-voltage kanye nezinhlelo zokusebenza zamafrikhwensi aphezulu kudinga ukucatshangelwa ngokucophelela kwezici eziningi zobungozi. Ngokuqonda imikhawulo yamandla kagesi, ukuziphatha kokuguga okushisayo, izakhiwo ze-dielectric ze-high-frequency, kanye nokuzwela kwemvelo, onjiniyela bangakhetha ibanga le-tape elifanele - noma bacele izixazululo ezenziwe ngokwezifiso - ukugwema ukwehluleka ngaphambi kwesikhathi.
Njengomkhiqizi othenjwayo we-PTFE wamateyipu okushisa aphezulu , i-Aokai ihlinzeka ngemikhiqizo eklanyelwe ukufuna ukufaka ugesi ngenkani kwindwangu eboshwe ye-PTFE, ibhande le-PTFE lokudlulisa, ibhande le-PTFE elinenetha, itheyipu yefilimu ye-PTFE, kanye netheyiphu ye-PTFE fiberglass..
Okuqukethwe okungenhla kunikezwa i- Jiangsu Aokai New Materials Technology Co., Ltd.
Ngemininingwane yemingcele yezobuchwepheshe, izixazululo zohlelo lokusebenza, nezinsizakalo ezenziwe ngokwezifiso zemikhiqizo yethu egcwele ibanga eligcwele kufaka phakathi indwangu ye-PTFE yokushisa okuphezulu, itheyiphu yokushisa ephezulu ye-PTFE, ibhande le-mesh lokushisa eliphezulu le-PTFE, ibhande lomshini wokuhlanganisa elingenamthungo, indwangu ye-PTFE enohlangothi olulodwa, ibhande lokuhambisa elimelana nokushisa okuphezulu nendwangu ye-fiberglass engashisi ukushisa , sicela usithinte ngokukhululekile:
Sinamathela kufilosofi yebhizinisi yobungcweti nobuqotho, futhi sizinikele ekunikezeni izixazululo ezinokwethenjelwa zokumisa okukodwa kanye nezinsizakalo ezicabangelayo zawo wonke amakhasimende.
