Uwoyela wokuvikela i-varnish, owaziwa nangokuthi upende noma i-varnish yokuvikela, udlala indima ekuvikeleni ukushisa, ukumelana nomswakama, ukushabalalisa ukushisa, kanye nokuqina kuma-transformer asebenza ngesivinini esiphezulu.
Ngokwezinhlobo zawo ezahlukene zamakhemikhali, amafutha okuvikela okwamanje angahlukaniswa ngezigaba ezintathu: asekelwe ku-polyester; isigaba se-Resin; Izinto ze-Siliceous. Uwoyela wokuvikela i-polyester ulungiswa kakhulu yi-condensation reaction yama-polyol nama-polyacid, futhi ngokuvamile uketshezi olukhanyayo olungenambala noma oluphuzi olukhanyayo. Une-voltage ephezulu yokuqhekeka kanye nokumelana nevolumu, okungavimbela ngempumelelo ukuthi ugesi ungadluli futhi kunikeze ukuvikela okuhle. Unezindleko eziphezulu kakhulu phakathi kwezinhlobo ezintathu zamafutha okuvikela futhi uwoyela wokuvikela osetshenziswa kakhulu kuma-transformer asebenzisa imvamisa ephezulu.
Kodwa-ke, uwoyela wokuvikela i-polyester une-viscosity ephezulu, futhi i-viscosity yayo ithintwa kakhulu yizinga lokushisa. I-viscosity iyanda kakhulu emazingeni okushisa aphansi, okuthinta kakhulu ukugeleza kwayo kanye nomphumela wokushabalalisa ukushisa. Ngakho-ke, uma isetshenziswa, kuvame ukudingeka ukwengeza ama-diluent ukuze kuncishiswe i-viscosity yamafutha okuvikela, kugcinwe ukugeleza okuhle, futhi kuqinisekiswe ukuthi i-transformer enemvamisa ephezulu ingacwiliswa ngokuphelele ngesikhathi sokucwiliswa. I-vitrous ethile yamafutha okuvikela i-polyester kanye ne-diluent ngokuvamile icishe ibe ngu-0.9, engahlolwa ngemitha ethile yamandla adonsela phansi.
Okwesibili, uwoyela wokuvikela i-polyester uthambekele ekungcolisweni nasekuwohlokeni emazingeni okushisa aphezulu, ukhiqiza izinto ezinobuthi kanye nodaka, okuthinta ukusebenza okuvamile komkhiqizo futhi kunciphise ububanzi bokusetshenziswa kwawo ezindaweni ezishisa kakhulu. Ngaphezu kwalokho, uma kuqhathaniswa namafutha okuvikela i-resin kanye ne-siliceous, uwoyela wokuvikela i-polyester unenani eliphakeme kakhulu lokulahlekelwa yi-dielectric, okusho ukuthi ukulahlekelwa amandla kukhulu ngaphansi kwamasimu kagesi ashintshanayo futhi ngezinga elithile kuzothinta ukusebenza kahle komkhiqizo.
Njengamanje, uwoyela wokuvikela i-polyester uvame ukusetshenziselwa ukufaka ama-windings, njenge-transformers ezishintsha imvamisa ephezulu, ama-motor, izintambo, njll., okungathuthukisa ukuvikela, ukuhanjiswa kokushisa, kanye nokumelana nomswakama kwemikhiqizo futhi kwandise impilo yayo yesevisi. Uwoyela wokuvikela osekelwe ku-resin uqukethe ikakhulukazi ama-polymer compounds e-organic, ngokuvamile asesimweni soketshezi noma esiqinile, anokumelana okuhle nokuguguleka.
Amafutha okuvikela asekelwe ku-resin angakhiwa ngokulungisa isilinganiso sezinto zokusetshenziswa kanye nezimo zokusabela ukuze kukhiqizwe uketshezi lwe-resin olune-viscosity ephansi. Lezi ziphuzo zinoketshezi oluhle kanye nezakhiwo zokumboza, futhi ngokuvamile azidingi izinto ezengeziwe zokuxuba. Ngaphansi kwezimo zokushisa, uwoyela wokuvikela osekelwe ku-resin nawo ungathamba noma uncibilike. Uma kuqhathaniswa namafutha okuvikela e-polyester, uwoyela wokuvikela i-resin unokuqina okuphezulu, ukusebenza okungcono kokuvikela ugesi, kanye nentengo ephezulu. Ngokuvamile usetshenziselwa ukuvikela ugesi kwama-transformer ahlukahlukene, ama-terminal kagesi, kanye nama-joint. Uwoyela wokuvikela i-siliceous wakhiwe kakhulu ngamakhemikhali e-silicon ephilayo njenge-polydimethylsiloxane. Ngokuvamile luwuketshezi olukhanyayo olungenambala noma oluphuzi olukhanyayo olune-viscosity ephansi kakhulu kanye noketshezi oluhle.
Uma kuqhathaniswa namafutha okuvikela i-polyester kanye ne-resin, amafutha okuvikela i-siliceous anenani eliphansi lokulahlekelwa yi-dielectric, ukulahlekelwa kwamandla amancane ngaphansi kwezinkambu zikagesi ezishintshanayo, kanye nokusebenza kahle komkhiqizo okuphezulu. Iphinde ibe nokumelana okuhle kwe-arc kanye nokumelana nokuvuza, futhi ingagcina ukusebenza okuzinzile ezindaweni ezimbi kakhulu. Uwoyela wokuvikela i-siliceous ungasetshenziswa ekuvikeleni ezindaweni ezimbi kakhulu njenge-voltage ephezulu, izinga lokushisa eliphezulu, umswakama ophezulu, kanye nokubanda okukhulu, okuthuthukisa izinga lokuvikela kanye nokuthembeka kokusebenza kwemikhiqizo. Indawo yayo yokushisa ephezulu kanye nezakhiwo zokuzicisha zinikeza uwoyela wokuvikela i-siliceous izinzuzo ezibalulekile ekuphepheni komlilo. Kodwa-ke, uwoyela wokuvikela i-siliceous unezindleko eziphakeme futhi ngokuvamile awusetshenziswa kuma-transformer asebenza ngesivinini esiphezulu.
Isikhathi sokuthunyelwe: Ephreli-13-2026
