Impregnation kua roj vanish yog siv los impregnate hluav taws xob coils thiab windings los sau qhov khoob nyob rau hauv, kom cov xov hlau ntawm cov coils thiab cov xov hlau thiab lwm yam ntaub ntawv insulating yog sib koom ua ke los txhim kho lub zog hluav taws xob, cov khoom siv hluav taws xob, thermal conductivity thiab kev tiv thaiv hluav taws xob. coil rwb thaiv tsev. Ms. Can yuav muaj kev sib tham luv luv nrog koj txog impregnation varnish hnub no, vam tias yuav pab tswj cov txheej txheem zoo.
1 Cov kev cai yooj yim rau hluav taws xob coil impregnation kua roj vanish
● Tsawg viscosity thiab cov ntsiab lus siab kom ntseeg tau zoo permeability thiab xim dai nyiaj;
● Kev ruaj ntseg zoo thaum khaws cia thiab siv;
● Zoo curing thiab drying yam ntxwv, ceev curing, tsis kub, zoo sab hauv kom qhuav;
● Lub zog sib txuas siab, kom cov khoom siv hluav taws xob tuaj yeem tiv taus qhov nrawm dua thiab kev cuam tshuam ntawm kev siv tshuab;
● Tau tshaj lwm yam khoom siv;
● Kev ua haujlwm zoo ib puag ncig.
2 Kev faib tawm thiab cov yam ntxwv ntawm impregnation kua roj vanish
● Solvent impregnation kua roj vanish. Cov kua roj vanish impregnation muaj cov kuab tshuaj, thiab nws cov ntsiab lus (feem ntau) yog feem ntau ntawm 40% thiab 70%. Solvent impregnation varnish nrog cov ntsiab lus ntau dua 70% yog hu ua low-solvent impregnation varnish, tseem hu ua high-solid impregnation varnish.
Cov kua roj vanish impregnation muaj qhov ruaj khov ruaj khov, zoo permeability thiab zaj duab xis-tsim cov khoom, thiab kuj pheej yig, tab sis lub dipping thiab ci lub sij hawm ntev, thiab cov residual hnyav yuav ua rau qhov khoob ntawm cov khoom impregnated. Cov kuab tshuaj volatile kuj ua rau ib puag ncig muaj kuab paug thiab pov tseg, thiab nws siv tau txwv. Nws yog tsuas yog siv rau impregnation ntawmlow-voltage motorsthiab hluav taws xob windings.
Solvent-free impregnation varnish feem ntau yog impregnated los ntawm immersion, thiab lub tshuab nqus tsev impregnation thiab dripping kuj siv tau.
Cov kua roj vanish tsis muaj cov kua roj vanish kho sai sai, muaj lub sijhawm luv luv thiab ci, tsis muaj cua sib txawv hauv cov rwb thaiv tsev impregnated, muaj kev ncaj ncees zoo, thiab muaj hluav taws xob thiab khoom siv hluav taws xob. Solvent-free impregnation varnish tau nthuav dav thiab siv los hloov cov kuab tshuaj tsis muaj impregnation cov kua roj vanish nyob rau hauv high-voltage generators, motors, loj-scale, ceev-tsim ntau lawm kab, thiab tej yam tshwj xeeb motors thiab cov khoom siv hluav taws xob. Txawm li cas los xij, lub sijhawm cia ntawm cov kuab tshuaj tsis muaj kuab tshuaj impregnation yog luv. Cov kua roj vanish-dawb impregnation tuaj yeem impregnated los ntawm immersion, nruam immersion, dov immersion, dripping immersion thiab nqus siab immersion.
3 Kev ceev faj rau kev siv cov kua roj vanish impregnation
● Kev tswj kom zoo ntawm cov kua roj vanish impregnation thaum siv. Cov xim tsis muaj kuab tshuaj yog cov tshuaj polymerizable resin muaj pes tsawg leeg. Ntau hom tshuaj hnyav-dawb impregnating xim yuav nws tus kheej-polymerize rau qib sib txawv thaum khaws cia thiab siv. Kev tswj tsis raug yuav ua kom qhov no tus kheej-polymerization. Thaum cov xim tsis muaj kuab tshuaj nyob rau hauv cov khoom siv impregnation tsim cov gel, nws yuav nrawm nrawm thiab tawg hauv 1 mus rau 2 hnub, ua rau muaj xwm txheej loj thiab poob. Yog li ntawd, qhov zoo ntawm cov kuab tshuaj-dawb impregnating xim nyob rau hauv kev siv yuav tsum nruj me ntsis tswj, thiab kev ntsuas yuav tsum tau coj los xyuas kom meej qhov zoo stability ntawm cov xim.
(1) Tsis tu ncua taug qab thiab saib xyuas qhov zoo ntawm cov xim impregnating siv. Cov khoom tshuaj ntsuam xyuas thiab kev kuaj xyuas tuaj yeem tsim raws li cov xim pleev xim siv, cov khoom siv txheej txheem impregnating thiab cov dej num ntau lawm. Cov khoom tshawb xyuas feem ntau suav nrog ntom ntom, ntom ntom, lub sijhawm gel, cov ntsiab lus noo noo thiab cov ntsiab lus muaj kuab. Yog tias qhov ntsuas qhov zoo ntawm cov xim ntau dhau ntawm qhov txwv sab saud ntawm qhov ntsuas ntsuas sab hauv, cov xim tshiab lossis lwm yam kev ntsuas yuav tsum tau ua tam sim ntawd los kho nws.
(2) Tiv thaiv kom tsis txhob ya raws thiab lwm yam impurities nkag mus rau hauv cov xim impregnating. Txawm hais tias epoxy los yog polyester hnyav-dawb impregnating xim yog rhiab heev rau ya raws. Ib qho me me ntawm cov dej noo nkag mus rau hauv lub cev yuav ua rau cov viscosity ntawm cov xim tuaj sai sai. Cov dej noo thiab impurities yuav tsum tau tiv thaiv kom tsis txhob nkag mus rau cov xim thaum lub sij hawm thauj mus los, cia thiab siv cov xim impregnating. Cov dej, huab cua thiab qis molecular volatiles sib xyaw hauv cov xim tuaj yeem raug tshem tawm los ntawm lub tshuab nqus tsev thiab cov xim txheej degassing, thiab cov xim pleev xim tuaj yeem lim los ntawm cov khoom siv lim dej. Cov sediment nyob rau hauv cov xim yog tsis tu ncua lim tawm kom cov resin ntshiab.
(3) Ua kom raug xaiv qhov ntsuas kub impregnation kom cov viscosity ntawm cov xim ncav cuag tus nqi teev. Qhov no tuaj yeem raug xaiv raws li qhov viscosity-kub nkhaus ntawm cov xim, thaum txiav txim siab qhov txawv ntawm qhov txias-dip workpieces thiab kub-dip workpieces. Yog hais tias qhov kub thiab txias yog siab dhau, nws yuav ua rau muaj kev cuam tshuam tsis zoo rau viscosity stability ntawm cov xim; Yog hais tias lub dipping kub yog tsawg heev, lub viscosity yuav siab thiab cov nyhuv dipping yuav tsis zoo.
(4) Tsis tu ncua thiab do cov kua pleev xim rau kom qhov kub thiab txias ntawm cov kua pleev xim rau hauv lub tank xim thiab cov kav dej kom tsawg li sai tau los tiv thaiv cov xim pleev xim rau hauv cov kav dej los ntawm nws tus kheej gelling thiab solidifying, uas yuav thaiv cov kav dej pleev xim.
(5) Ntxiv cov xim tshiab tsis tu ncua. Lub voj voog ntxiv thiab tus nqi yog nyob ntawm kev tsim khoom thiab qhov xwm txheej ntawm cov xim. Los ntawm kev ntxiv cov xim tshiab raws li kev ua haujlwm ib txwm muaj, cov xim impregnation hauv lub tank feem ntau tuaj yeem siv tau ntev.
(6) Tsis tshua muaj kub cia txo tus kheej-polymerization ceev ntawm cov xim. Qhov ntsuas kub cia tuaj yeem tswj tau qis dua 10 ° C. Rau lub sijhawm ntev uas tsis siv lossis tsis xwm yeem, qhov ntsuas kub yuav tsum qis dua, xws li -5 ° C.
Rau cov kuab tshuaj impregnation xim, lub hom phiaj yog kom tsis tu ncua xyuas qhov ntom thiab viscosity ntawm cov xim kom nws nyob rau hauv kev tswj ntau yam.
● Cov nyhuv ntawm impurities ntawm kev kho cov xim tsis muaj xim polyester impregnation. Kev xyaum tau pom tias cov ntaub ntawv xws li tooj liab thiab phenols muaj qhov cuam tshuam qeeb ntawm kev kho cov xim tsis muaj xim polyester impregnation. Qee lwm cov ntaub ntawv, xws li roj hmab thiab oily enameled hlau, yuav yaj los yog o los ntawm styrene active monomer nyob rau hauv cov xim impregnation, ua rau saum npoo ntawm impregnated workpiece nplaum.
● Cov teeb meem kev sib raug zoo. Kev ntsuam xyuas kev sib raug zoo yuav tsum tau ua los xyuas kom meej tias cov xim impregnation yog sib haum nrog lwm cov khoom siv hauv cov rwb thaiv tsev.
● Teeb meem txheej txheem ci. Solvent-based impregnation varnishes muaj ntau cov kuab tshuaj. Feem ntau, ob lossis ntau dua impregnation, ci thiab maj mam nce qhov txheej txheem ci yog siv los tiv thaiv cov pinholes lossis qhov khoob hauv cov xim zaj duab xis thiab txhim kho kev ua haujlwm thiab lub neej ntawm coil rwb thaiv tsev. Cov txheej txheem ci ntawm cov kuab tshuaj tsis muaj impregnation varnishes yuav tsum tau ceev faj kom tsis txhob muaj kua nplaum ntau dhau. Rotary ci tuaj yeem txo cov kua nplaum zoo.
● Ib puag ncig muaj kuab paug teeb meem. Kev ntsuas tsim nyog yuav tsum tau coj los tswj cov kuab tshuaj vapor thiab styrene emissions thaum lub sij hawm impregnation thiab ci txheej txheem nyob rau hauv cov ntaub ntawv tso cai ntau yam.
Post lub sij hawm: Aug-15-2024
