Impregnation varnish inoshandiswa kuisa mapeji emagetsi emagetsi uye mamhepo ekuzadza mapeji mairi, kuitira kuti waya dzemakoiri uye waya uye zvimwe zvinhu zvinodzivirira zvinosungirirwa pamwe chete kuvandudza simba remagetsi, mechanical properties, thermal conductivity uye kudzivirira zvinhu zvemagetsi. coil insulation. Amai Can vachave nehurukuro pfupi newe nezve impregnation varnish nhasi, vachitarisira kubatsira nekugadzirisa maitiro ekugadzirisa.
1 Basic zvinodiwa zvemagetsi coil impregnation varnish
● Yakaderera viscosity uye yakakwirira yakasimba yemukati kuti ive nechokwadi chepermeability uye pendi yakaturika huwandu;
● Kugadzikana kwakanaka panguva yekuchengetedza uye kushandiswa;
● Kurapa kwakanaka uye kuomeswa maitiro, kukurumidza kupora, kuderera kwekushisa, kunaka kwemukati kuoma;
● High bonding simba, kuitira kuti midziyo yemagetsi inogona kumira kumhanya kwepamusoro uye mechanical force impact;
● Inopindirana nezvimwe zvinhu zvechikamu;
● Kuita zvakanaka kwezvakatipoteredza.
2 Kugadzika uye hunhu hwe impregnation varnish
● Solvent impregnation varnish. Solvent impregnation varnish ine solvent, uye yayo yakasimba yemukati (chikamu chezhinji) kazhinji iri pakati pe40% ne70%. Solvent impregnation varnish ine yakasimba inodarika 70% inonzi yakaderera-solvent impregnation varnish, inonziwo high-solid impregnation varnish.
Solvent impregnation varnish ine yakanaka kuchengetedza kugadzikana, yakanaka permeability uye firimu-inogadzira zvivakwa, uye yakachipa, asi kunyura uye kubheka nguva yakareba, uye yakasara solvent inokonzeresa mapeji mune zvakapinzwa zvinhu. The volatile solvent inokonzerawo kusvibiswa kwezvakatipoteredza uye tsvina, uye kushandiswa kwayo kune zvishoma. Inonyanya kushandiswa impregnation yelow-voltage motorsuye mamhepo emagetsi.
Solvent-isina impregnation varnish inowanzo nyudzwa nekunyudzwa, uye vacuum pressure impregnation uye kudonha zvinogona kushandiswawo.
Solvent-isina impregnation varnish inorapa nekukurumidza, ine nguva pfupi yekunyura uye yekubikira, haina mukaha wemhepo mukati meiyo inpregnated insulation, ine kuvimbika kwakanaka, uye ine yakakwirira yemagetsi uye michina. Solvent-isina imregnation varnish yakasimudzirwa zvakanyanya uye inoshandiswa kutsiva solvent-isina impregnation varnish mune yakakwira-voltage jenareta, mota, hombe, mitsara yekugadzira inokurumidza, uye mamwe akakosha mota nemidziyo yemagetsi. Nekudaro, iyo nguva yekuchengetedza ye solvent-isina impregnation varnish ipfupi. Solvent-isina imregnation varnish inogona kunyudzwa nekunyudzwa, kunyudzwa kunoramba kuripo, kunyudzwa kunomonereka, kunyura kunyura uye kunyudzwa kwevacuum.
3 Chengetedzo yekushandiswa kweipregnation varnish
● Hunhu hutongi hwevarnish impregnation panguva yekushandiswa. Solvent-isina pendi ndeye polymerizable resin kuumbwa. Mhando dzakasiyana-siyana dze solvent-isina impregnating pendi inozozvimisa-polymerize kune akasiyana madhigirii panguva yekuchengetedza uye kushandiswa. Kutungamira kwakashata kunomhanyisa iyi self-polymerization. Kamwe pendi isina-solvent mumidziyo yekuisa inoburitsa gel, inokurumidza kusimba uye inoraswa mukati me1 kusvika kumazuva maviri, zvichikonzera tsaona huru uye kurasikirwa. Naizvozvo, kunaka kwependi yekunyungudutsa-isina-isina kupfekedza mukushandiswa kunofanirwa kutariswa zvakanyanya, uye matanho anofanirwa kutorwa kuti ave nechokwadi chekugadzikana kwepende.
(1) Gara uchitevera uye tarisa kunaka kwependi yekumisa iri kushandiswa. Zvinhu zvekuongorora uye kutenderera kwekuongorora zvinogona kugadzirwa zvinoenderana nependi yekumisikidza inoshandiswa, iyo yekumisikidza maitiro emidziyo uye mabasa ekugadzira. Izvo zvinhu zvekuongorora zvinowanzo sanganisira density, density, nguva yegel, hunyoro hwemukati uye inoshanda diluent yemukati. Kana iyo indekisi yemhando yepende inodarika muganhu wepamusoro weiyo mukati mekutonga index, pende nyowani kana mamwe matanho anofanira kutorwa nekukurumidza kuti agadzirise.
(2) Kudzivirira hunyoro nezvimwe zvitsvina kuti zvisapinde mupende inoitisa pamuviri. Kunyangwe epoxy kana polyester solvent-isina impregnating pendi inonzwa zvakanyanya kune unyoro. Hunyoro hushoma hunopinda muhurongwa huchaita kuti viscosity yepende iwedzere nekukurumidza. Unyoro uye kusvibiswa kunofanira kudziviswa kupinda mupende panguva yekufambisa, kuchengetedza uye kushandiswa kwepende inopinza. Iyo mvura, mhepo uye yakaderera ma molecular volatiles yakasanganiswa mupende inogona kubviswa nekutsvaira uye pendi layer degassing zvishandiso, uye mvura yependi inogona kusefa nemidziyo yekusefa. Iyo sediment mupende inogara ichisefa kuti resin igare yakachena.
(3) Sarudza nemazvo tembiricha yekuisa kuitira kuti viscosity yepende isvike kukosha kwakatarwa. Izvi zvinogona kusarudzwa zvichibva pane viscosity-tembiricha curve yepende, uchifunga nezve mutsauko uripo pakati pekutonhora-dip workpieces uye inopisa-dip workpieces. Kana tembiricha yekunyura yakanyanyisa, ichava nemhedzisiro yakaipa pakugadzikana kwe viscosity yepende; kana tembiricha yekunyura yakadzikira, viscosity ichave yakakwira uye iyo dipping inozove yakashata.
(4) Gara uchitenderedza nekukuchidzira mvura yependi kuchengetedza tembiricha yemvura yependi mutangi repende nepombi zvakaderera sezvinobvira kudzivirira mvura yependi iri mupombi kuti isazvigeze uye nekuomesa, zvinozovhara pombi yependi.
(5) Wedzera pendi itsva nguva dzose. Kuwedzera kutenderera uye huwandu hunoenderana nebasa rekugadzira uye chimiro chepende. Nekuwedzera pendi nyowani pasi peakajairwa kugadzirwa mabasa, iyo impregnation pendi mutangi inogona kushandiswa yakagadzikana kwenguva yakareba.
(6) Kuchengetera tembiricha yakaderera kunoderedza iyo self-polymerization kumhanya kwepende. Tembiricha yekuchengetera inogona kudzorwa pasi pe10°C. Kwenguva refu isina kushandiswa kana mamiriro ezvinhu, tembiricha yekuchengetera inofanirwa kunge yakadzikira, senge -5°C.
Kune solvent impregnation pendi, chinotariswa ndechekugara uchitarisa density uye viscosity yepende kuti ichengetedze mukati meiyo control range.
● Mhedzisiro yetsvina pakurapa kwependi isina unsaturated polyester impregnation. Kudzidzira kwakaratidza kuti zvinhu zvakaita semhangura uye phenols zvine kunonoka mhedzisiro pakurapa kwependi isina unsaturated polyester impregnation. Zvimwe zvinhu, zvakadai serabha uye mafuta enameled waya, zvichanyungudutswa kana kuzvimba ne styrene inoshanda monoma mu impregnation pendi, zvichiita pamusoro peiyo impregnated workpiece kunamira.
● Nyaya dzekuenderana. Miedzo yekuenderana inofanirwa kuitwa kuti ive nechokwadi chekuti iyo impregnation pendi inoenderana zvizere nezvimwe zvinoumba zvinhu muinsulation system.
● Nyaya dzekubika. Solvent-based impregnation varnishes ine yakawanda yakawanda yezvinonyungudutsa. Kazhinji, maviri kana anopfuura kupinza, kubheka uye zvishoma nezvishoma tembiricha kuwedzera kubikira maitiro anoshandiswa kudzivirira pinholes kana mapundu mufirimu repende uye kuvandudza mashandiro uye hupenyu hwekuvhara coil. Iyo yekubheka nzira yekunyungudutsa-isina impregnation varnishes inofanirwa kungwarira kudzivirira yakawandisa glue kuyerera. Rotary baking inogona kunyatso kudzikisa glue kuyerera.
●Nyaya dzekusvibiswa kwenharaunda. Matanho akakodzera anofanirwa kutorwa kudzora mhute yekunyungudutsa uye styrene inoburitswa panguva yekumisikidzwa uye kubheka maitiro mukati meiyo inobvumidzwa inobvumidzwa renji.
Nguva yekutumira: Aug-15-2024
