Epoxy yeeb nkab manufacturers qhia cov txhais cov ntaub ntawv insulating

Raws li lub teb chaws tus qauv GB2900.5, lub ntsiab lus ntawm insulating cov ntaub ntawv yog: “cov ntaub ntawv siv rau hluav taws xob insulate li”. Ntawd yog, cov khoom siv insulating uas thaiv qhov kev nkag ntawm hluav taws xob. Nws cov resistivity yog siab heev, feem ntau nyob rau hauv thaj tsam ntawm 10-10Ω·m. Raws li nyob rau hauv lub cev muaj zog, cov ntaub ntawv insulating nyob ib ncig ntawm lub conductors cais lub lem thiab los ntawm lub hauv paus stator core kom paub meej tias lub cev muaj zog ua hauj lwm.

Cov khoom tsim los ntawm cov khoom uas muaj qhov tiv taus ntawm 109 txog 1022 Ω•Cm yog hu ua cov ntaub ntawv insulating hauv cov cuab yeej hluav taws xob, tseem hu ua dielectrics. Yooj yim muab, nws yog cov khoom siv uas cais lub cev them los ntawm lwm qhov chaw. Cov khoom siv insulating muaj qhov ua haujlwm loj heev rau DC tam sim no. Nyob rau hauv qhov kev txiav txim ntawm DC voltage, nws yog xyaum tsis-conductive tsuas yog rau ib tug heev me me nto ntws tam sim no. Rau AC tam sim no, muaj ib qho capacitive tam sim no dhau los, tab sis nws kuj tseem suav tias yog qhov tsis muaj hluav taws xob. Kev coj ua. Qhov siab dua qhov kev tiv thaiv ntawm cov khoom siv insulating, qhov zoo dua qhov kev ua haujlwm insulating.

Hauv kev siv tshuab hluav taws xob, cov ntaub ntawv insulating feem ntau yog xa mus rau cov khoom siv nrog kev tiv thaiv ntau dua 10 mus rau 9 lub zog Ω.cm. Kev ua haujlwm ntawm cov ntaub ntawv insulating yog tsuas yog cais cov nyob ntawm qhov sib txawv ntawm cov khoom siv hluav taws xob.

Yog li ntawd, cov ntaub ntawv insulating yuav tsum muaj cov khoom zoo dielectric, uas yog, lawv yuav tsum muaj cov rwb thaiv tsev siab thiab compressive zog, thiab yuav tsum tsis txhob muaj xwm txheej xws li to, creepage thiab tawg; Thib ob, qhov kub tsis kam ntawm cov ntaub ntawv insulating yog qhov zoo dua, feem ntau nws tau lees tias yuav tsis muaj kev hloov pauv vim muaj cua sov mus ntev; Nyob rau hauv tas li ntawd, nws muaj zoo thermal conductivity, ya raws tsis kam, siab mechanical zog, thiab yooj yim ua.

Cov ntaub ntawv rwb thaiv tsev feem ntau siv los ntawm cov kws tshaj lij hluav taws xob tuaj yeem muab faib ua cov ntaub ntawv inorganic thiab cov ntaub ntawv organic raws li cov khoom sib txawv. Muaj peb hom insulating cov ntaub ntawv thiab cov ntaub ntawv sib xyaw insulating.