Indwangu ye-PTFE enezinga eliphezulu lokushisa isetshenziswa kabanzi njengokufakwa kukagesi ekubopheleni izintambo, izendlalelo ze-transformer, ama-motor windings, namasekhethi anemvamisa ephezulu. Kodwa izinga lokushisa liyashintsha - ukusuka emakhazeni abandayo kuya ekushiseni okudlulele - kushintsha ukuziphatha kwawo kokuvikela. Ungakwazi yini ukuthembela endwangu ye-PTFE ku-200°C? Kwenzekani ngaphezu kuka-260°C?
Impendulo inama-nuanced. Isakhiwo samangqamuzana e-PTFE siyinikeza ukwahlukanisa okuvelele kulo lonke uhla lwayo lokusebenza, kodwa okwedlula u-260°C kubangela ukuwohloka okungenakulungiseka. Futhi nakuba amazinga okushisa abandayo ethuthukisa izici zikagesi, enza uqweqwe lwawo lube brittle.
I-Aokai PTFE ihlole izakhiwo zokufaka phakathi kwezinga lokushisa elidlulele. Lesi sihloko sihlukanisa ukusebenza sibe izigaba ezintathu: ukusebenza okuvamile (-180°C kuya ku-260°C), ukuphakama ngokwedlulele (>260°C), nezinga lokushisa eliphansi (<0°C), nedatha eyinhloko yokumelana nokumelana, amandla e-dielectric, nemithelela engokoqobo.
Ububanzi obujwayelekile bokuSebenza: -180°C kuya ku-260°C - Ukufakwa kwe-Insulation Okuzinzile
Ngaphakathi kwalo bubanzi, indwangu ye-PTFE enezinga eliphezulu lokushisa igcina ukufakwa kukagesi okuvelele futhi okuzinzile - inzuzo eyinhloko esekela ukusetshenziswa kwayo kwezimboni okusabalele.
1. Ivolumu Nokumelana Nobuso
Izinga lokushisa |
Ukungazweli Ivolumu (Ω·cm) |
Incazelo |
I-ambient (25°C) |
10⊃1;⁷ – 10⊃1;⁸ |
Okuhle kakhulu - phakathi kwama-insulators angcono kakhulu |
200°C |
10⊃1;⊃3; - 10⊃1;⁴ |
Kusengcono kakhulu kunezinto eziningi ezijwayelekile |
260°C |
>10⊃1;⊃2; (isilinganiso) |
Isasebenza ezinhlelweni eziningi |
Indlela: Ukungazweli kwehla ngokulingene ngezinga lokushisa elikhuphukayo ngoba izinga lokushisa eliphakeme liqinisa ukunyakaza okushisayo kwamaketanga e-molecular PTFE futhi kusheshise ukufuduka kwabathwali bokungcola komkhondo. Kodwa-ke, ngisho naku-200 ° C, i-PTFE idlula amapulasitiki amaningi wobunjiniyela ekamelweni lokushisa.
Qaphela ukumelana nendawo: Ukumelana nendawo kusengozini kakhulu kumswakama we-ambient. I-PTFE cishe ayiyona i-hygroscopic; umswakama ongaphezulu uyahwamuka emazingeni okushisa aphakeme, ulethe ukwahlukanisa okuzinzile kakhulu kunangaphansi kwezimo zegumbi ezinomswakama ophezulu.
2. Amandla e-Dielectric (I-Breakdown Voltage)
Yehla njengoba izinga lokushisa likhuphuka. Ukunyakaza okushisayo kwama-molecular kwenza izinto zibe sengozini enkulu yokulimala kwenkundla kagesi.
Ukusuka kumazinga okushisa asekamelweni kuya ku-200°C, amandla e-dielectric esikhashana ehla cishe ngo- 20%–40%.
Noma kunjalo, indwangu ye-premium ewugqinsi engu-0.1 mm isamelana nama-kilovolthi amaningana (noma amashumi ama-kilovolthi ukuze athole amamaki ashubile) ku-200°C - amandla okufaka aqinile agciniwe.
3. I-Dielectric Constant & Dissipation Factor - Ukuguquguquka Okuncane
Impahla |
Inani (-100°C ukuya ku-250°C) |
Ukuzinza |
I-Dielectric constant (Dk) |
2.0 – 2.1 |
Cishe isicaba |
Isici sokulahla (tan δ) |
0.0002 - 0.001 |
Okuphansi kakhulu |
Kungani lokhu kubalulekile: Isakhiwo samangqamuzana e-PTFE esilingene kakhulu kanye ne-ultra-low polarization iqinisekisa ukudluliswa kwesignali okuzinzile kanye nokukhiqizwa kokushisa okuphansi kakhulu ngaphansi kwesevisi ye-high-frequency & izinga lokushisa eliphezulu. Lokhu kufaneleka i-PTFE njengento efanelekile yokuvikela imvamisa ephezulu yezinhlelo zokusebenza ze-RF ne-microwave.
Indwangu ye- Aokai PTFE yezinga lokushisa eliphezulu icaciswa amakhasimende ngokufaka i-high-frequency transformer insulation ngenxa yezinzile Dk (2.05±0.05) kanye ne-ultra-low tanδ (0.0002-0.0005) kulo lonke uhla -50°C ukuya ku-200°C. Sihlinzeka ngemibiko yokuhlolwa kwempahla ye-dielectric uma siyicela.
Ibanga Lezinga Lokushisa Eliphezulu Kakhulu: Lingaphezu kuka-260°C – Ukonakala Okungenakuhlehliswa
Ukweqa izinga lokushisa elivumelekile lesevisi yesikhathi eside le-PTFE kubangela ukuwohloka okungenakulungiseka ngokomzimba namakhemikhali – okungekona ukuhlukahluka kwempahla okubuyisela emuva.
Izinga Lokushisa |
Isimo Sezinto |
Isimo Sokushisisa |
260°C – 327°C |
I-PTFE enamathela iyathambisa; amandla emishini alahleka kakhulu. Ingcindezi yangaphandle noma umthwalo kagesi kubangela kalula ukuguquguquka kokunamathela nokubhoboza → ukwehluleka okuhlanganisiwe komshini-kagesi ngisho noma imingcele kagesi eyinhloko ihlala yamukeleka |
Okungathembeki - ingozi yokubhoboza |
Ngaphezu kuka-327°C |
Ifinyelela endaweni yokuncibilika yekristalu ye-PTFE. I-PTFE eqinile iphenduka ibe yi-high-elastic noma ijeli, ilahlekelwe ubuqotho besakhiwo |
Cishe ehluleka ngokuphelele |
Ngaphezulu kuka-400°C |
Ukubola okukhulu kokushisa kukhipha umkhondo wamagesi ayingozi. I-Carbonization kanye namavesi e-conductive akha ngaphakathi kwempahla → ukumelana nevolumu kwehla kakhulu, ukwahlukanisa kubhujiswe unomphela |
Ukwehluleka okuphelele - ifomu lezindlela zokuqhuba |
Isexwayiso esibalulekile: Nakuba isisekelo sendwangu ye-fiberglass imelana nokungu-550-750°C ngaphambi kokuthambisa, i-fiberglass engagqokile imunca kalula umswakama ngemva kokuhluleka kokumbozwa kwe-PTFE futhi ayikwazi ukusebenza ngokuzimela ekufakeni amandla kagesi aphezulu.
Ibanga Lezinga Lokushisa Eliphansi: Ngezansi kuka-0°C – Ekagesi Ethuthukisiwe kodwa IMechanical Eqinile
Impahla |
Umphumela Ngaphansi kuka-0°C |
Umphumela Ongokoqobo |
Ukumelana nevolumu |
Ukwenyuka - izinga lokushisa eliphansi livala ukunyakaza kwama-molecular chain, kuvimbela ukufuduka kwenkampani yenethiwekhi |
Ukufakwa kukagesi kungcono kunokushisa kwekamelo |
Amandla e-Dielectric |
Ukwanda - impahla imelana kakhulu nokuqhekeka |
Kuhle kakhulu ekusetshenzisweni kwe-cryogenic insulation |
Ukuguquguquka kwemishini |
I-PTFE idlula kunguquko yesigaba sekristalu ku-~19°C; iba brittle ngokuphawulekayo ngaphansi kuka -79°C |
Ukugoba noma umthelela kungase kuqhekeke i-PTFE enamathelayo → kudala amaphutha okufakwa ngaphakathi |
Okuthathayo okubalulekile: Naphezu kokufakwa okuthuthukisiwe kukagesi emazingeni okushisa aphansi, ukunamathela kwe-PTFE kuba brittle. Ngezinhlelo zokusebenza ze-cryogenic (isb., imigqa ye-nitrogen ewuketshezi, omagnethi abakhulu), qinisekisa ukuthi indwangu ayigobi ngokucijile noma ingcindezi yokusebenza ngaphansi kuka -79°C. Uma sekuqhekekile, ubuqotho bokufakelwa kwe-insulation buyalahleka kungakhathaliseki ukuthi yiziphi izakhiwo zikagesi.
Isifinyezo - Hlala Ku-260°C ukuze uthole Ukufakwa Kwamandla Okuthembekile
Izinga Lokushisa |
Ukusebenza kwe-Insulation |
Isimo Semishini |
Isincomo |
-180°C kuya ku-260°C |
Okuhle kakhulu - okuzinzile, ukumelana okuphezulu, ukulahlekelwa okuphansi |
Iyavumelana nezimo (buka ukonakala ngaphansi kuka -79°C) |
Iphephile ukusetshenziswa okuqhubekayo |
260°C – 327°C |
Ukwehlisa isithunzi - ukunamathela okuthambile kungakhubaza/kubhoboze |
Ukuthambisa |
Okungathembeki - gwema ukuchayeka okuqhubekayo |
327°C – 400°C |
Ukwehluleka okuseduze - ukuncibilika, ukulahlekelwa kwesakhiwo |
Ijeli/uketshezi |
Ayisetshenziswa ugesi |
> 400°C |
Ukwehluleka unomphela - i-carbonization idala izindlela ezisebenzayo |
Ibolile |
Inhlekelele - buyisela ngokushesha |
Kafushane , ngaphakathi kwezinga lokushisa eliqhubekayo elinconywayo (≤260°C), izinga lokushisa libeka umthelela omubi ongemuhle ekwakhiweni kukagesi kwendwangu yezinga lokushisa eliphezulu ye-PTFE. Ukumelana nevolumu kuhlala kungaphezulu kwe-10⊃1;⊃3; Ω·cm ku-200°C; ukuhlala njalo kwe-dielectric ku-2.0-2.1; Isici sokulahla esingaphansi kuka-0.001. Lokhu kwenza i-PTFE ibe enye yezinto ezizinze kakhulu zokuvikela izinga lokushisa eliphezulu ezitholakalayo – ikakhulukazi ezibaluleke kakhulu ezinhlelweni zokusebenza zamafrikhwensi aphezulu lapho amanye amapholymer elahlekelwa kakhulu.
Uma sekushiselwe kakhulu ngaphezu kuka-260°C, ukwehluleka kokufakwa kwe-insulation kuqala kusukela ekuthambeni komshini kanye nokuguqulwa, ekugcineni kuguqukele ekuqhekekeni okuphelele kukagesi. Ngaphezulu kuka-400°C, i-carbonization idala izindlela ezisebenzayo ezihlala njalo. Ngaphansi kuka-0°C, izakhiwo zikagesi ziba ngcono, kodwa ukonakala kwemishini kuba sengozini yokuqhekeka okunamathelayo.
Udinga indwangu ye-PTFE enezinga eliphezulu lokushisa elinezici eziqinisekisiwe zokufakwa kwezinga lokushisa ebangeni lakho lokushisa? I-Aokai PTFE inikeza idatha yokuhlola egcwele i-dielectric ukusuka ku -70°C ukuya ku-260°C. Xhumana nathi ngezimfuneko zakho zokusebenza kwezinga lokushisa, i-voltage, kanye nemvamisa.
Idatha yobuchwepheshe engenhla ehlinzekwe ngu I-Jiangsu Aokai New Materials Technology Co., Ltd.
Uma udinga ukucaciswa okwengeziwe kwezobuchwepheshe, izixazululo zohlelo lokusebenza, nokukhiqizwa okwenziwe ngokwezifiso kwemikhiqizo egcwele ibanga eligcwele okuhlanganisa indwangu ye-PTFE enezinga eliphezulu lokushisa, i-PTFE adhesive tape, ibhande le-PTFE mesh conveyor, ibhande lomshini wokuhlanganisa elingenamthungo, indwangu ye-PTFE eboshwe ohlangothini olulodwa kanye nesidluliseli esimelana nokushisa okuphezulu nendwangu ye-fiberglass , sicela usithinte:
Sithobela ubungcweti nobuqotho ukuze silethe izixazululo zezimboni ezenzelwe indawo eyodwa kanye nokwesekwa okucabangelayo kwangemva kokuthengisa.
