Cov npuas npuas tau ntim rau hauvepoxy resin pottingyog qhov ua rau ua tsis taus ntxov ntxov nyob rau hauv siab -voltage transformer coils, vim hais tias txhua qhov khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khawm tuaj yeem pib nyob rau hauv kev ntxhov siab ntawm hluav taws xob - thiab qhov kho tsis yog cov resin zoo dua, nws yog qhov tsim nyog degassing ua ntej thiab tom qab pouring.
Kev khiav kom rauglub tshuab nqus tsev chamberlub voj voog, ua ke nrog txoj caitransformer potting compoundviscosity thiab kho qhov profile, tuaj yeem tshem tawm feem ntau ntawm cov cua ntxiab ua ntej nws puas tau dhau los ua qhov khoob hauv qhov ua tiav. Hauv qab no, peb piav qhia yog vim li cas npuas tsim nyob rau hauv thawj qhov chaw, lub physics qab lub tshuab nqus tsev degassing, thiab cov txheej txheem tsis uas cais ib tug void{1}} dawb potting txoj hauj lwm los ntawm ib tug uas tsis soj ntsuam.
I. Vim li cas thiaj ua npuas npuas hauv Transformer Potting?
Cua tau daig rau hauv potting compound ntawm ntau theem - thaum lub sij hawm resin sib tov, raws li nws ntws mus rau hauv lub nruj winding khoob ntawm ib lub kauj, thiab los ntawm cov huab cua twb tam sim no nyob rau ntawm hlau nto thiab rwb thaiv tsev ua ntej pouring txawm pib.
ib. npuas qhia thaum sib tov
Sib tovob-ib feem epoxy resinthiab hardener ua ke mechanically incorporates huab cua rau hauv qhov sib tov, thiab ntau zog los yog ceev qhov sib tov, cua ntau tau nplawm rau hauv.
b. npuas nyob rau hauv lub coil winding
Tightly coils coils, tshwj xeeb tshaj yog siab -voltage windings nrog ntau lem, tsim nqaim qhov khoob uas resin yuav tsum tau ntws mus rau hauv - huab cua twb zaum nyob rau hauv cov khoob yuav tsum tau khiav tawm raws li resin displaces nws, thiab yog hais tias nws tsis muaj peev xwm khiav ceev txaus, nws tau muab ntim rau hauv raws li cov compound kho.
II. Vim li cas Lub Nqus Degassing Tiag Tiag Tshem Tawm Npuas?
Lub tshuab nqus tsev degassing ua haujlwm vim tias txo qhov siab nyob ib puag ncig huab cua ua rau nws nthuav dav, yuam cov npuas kom nce mus rau saum npoo thiab tawg ua ntej cov resin kho nyob ib puag ncig lawv - kev sib raug zoo tau piav qhia ncaj qha los ntawm Boyle Txoj Cai.
Boyle's Law (npuas nthuav dav hauv lub tshuab nqus tsev):
P₁V₁ = P₂V₂
Qhov twg:
P₁= thawj zaug siab (kho, ~ 101 kPa)
V₁= pib npuas ntim
P₂= txo siab nyob rau hauv lub tshuab nqus tsev chamber
V₂= nthuav dav npuas ntim ntawm qhov txo qis
Piv txwv ua haujlwm:Cov npuas npuas nrog thawj ntim ntawm 0.5 mm³ ntawm atmospheric siab (101 kPa), rub mus rau lub chamber siab ntawm 5 kPa:
V₂ = (P₁ × V₁) / P₂ = (101 × 0.5) / 5 ≈ 10.1 hli
ib. qhov no txhais li cas hauv kev xyaum
Thaum tsuas yog 5% ntawm atmospheric siab, ib qho npuas npuas nthuav dav mus rau kwv yees li 20 npaug ntawm nws qhov qub ntim - loj txaus kom nce nrawm nrawm los ntawm cov resin thiab tawg rau ntawm qhov chaw es tsis txhob tshuav raws li qhov tsis muaj dab tsi microscopic ib zaug cov tshuaj kho.
b. vim li cas degassing ua ntej THIAB tom qab nchuav ob qhov teeb meem
Degassing cov resin ua ntej pouring tshem tawm cua qhia thaum sib tov, thaum degassing tom qab pouring (nrog rau lub kauj twb submerged) rub tawm cov huab cua nyob rau hauv lub winding nws tus kheej - hla ob theem tawm ib qhov chaw txawv ntawm voids unaddressed.
III. Lub tshuab nqus tsev theem twg thiab lub sijhawm koj yuav tsum siv?
| Txheej txheem theem | Hom Nqus Tsev Theem | Hom Lub Sij Hawm | Lub hom phiaj |
|---|---|---|---|
| Ua ntej - sib tov degassing | 1-5 kPa (ze lub tshuab nqus tsev) | 5–15 feeb | Tshem tawm cua los ntawm kev sib tov |
| Tshaj tawm - ncuav degassing | 1-5 kPa | 10-30 feeb | Rub cua los ntawm coil windings |
| Kev kho siab (yeem) | Saum toj no atmospheric | Kev kho mob tag nrho | Collapses tej microvoids seem |
ib. vim li cas dhau- rub lub tshuab nqus tsev nrawm dhau ua rau muaj teeb meem
Muab tso rau hauv lub tshuab nqus tsev sai dhau tuaj yeem ua rau cov resin nws tus kheej boil los yog ua npuas dej ntau dhau, tshwj xeeb tshaj yog nrog qis dua -viscosity compounds - tswj, maj mam siab ramp muab npuas lub sij hawm kom tsis txhob overwhelming nto.
b. vim li cas coil geometry cuam tshuam rau lub sijhawm degassing
Nthuav, siab -tig- suav windings feem ntau ntawm siab -voltage transformers xav tau ntev dua post- ncuav degassing lub sij hawm dua yooj yim qhib coils, txij li thaum huab cua yuav tsum tau taug kev ntev dua los ntawm nruj packed windings ua ntej nws mus txog saum npoo.
IV. Epoxy Curing Temperature cuam tshuam li cas rau kev tsim cov void?
Epoxy curing kubcuam tshuam ob qho tib si ntev npaum li cas npuas muaj sij hawm khiav tawm ua ntej cov txheej txheem sib xyaw thiab seb puas muaj cov kab mob microbubbles nthuav ntxiv thaum kho.
ib. kev sib pauv ntawm kev kho ceev thiab tsis muaj kev pheej hmoo
Kev kho sai dua, kub kub kho cov xauv hauv cov resin cov duab sai dua, uas txhais tau tias tsawg dua lub sijhawm rau cov npuas me me uas tseem tshuav kom nce thiab khiav tawm - qeeb dua, qis dua - qhov kub thiab txias pib kho theem feem ntau zoo dua rau qhov tsis muaj dab tsi -rhiab siab -voltage ua hauj lwm.
b. staged curing raws li ib qho kev daws teeb meem
Ntau cov txheej txheem siab -voltage potting txheej txheem siv cov txheej txheem kho - qis qis pib kom tso qhov kawg npuas khiav tawm, ua raws li qhov siab dua - qhov kub thiab txias los kho cov resin - es tsis yog ib qho kev ruaj khov - qhov kub thiab txias.
V. Cov cuab yeej twg koj xav tau rau kev ntseeg siab tsis muaj dab tsi -Potting dawb?
Cov txiaj ntsig zoo ib yam nyob ntawm qhov sib piv cov khoom siv lub tshuab nqus tsev rau koj lub coil loj thiab ntim ntau lawm, tsis yog ua raws li daim ntawv qhia txheej txheem dav dav.
| Khoom siv | Lub luag haujlwm |
|---|---|
| Lub tshuab nqus tsev vacuum chamber | Lub tsev lub coil thaum lub sij hawm degassing thiab pouring nyob rau hauv txo siab |
| Lub tshuab nqus tsev twj | Ua tiav thiab tuav lub hom phiaj lub tshuab nqus tsev |
| Mixing thiab dispensing unit | Muab cov resin thiab hardener tsis tu ncua, feem ntau nyob rau hauv ib nrab lub tshuab nqus tsev |
| Tsis siv neeg potting tshuab | Automates metering, mixing, thiab dispensing kom zoo ib yam txhaj tshuaj - mus rau - txhaj tshuaj |
ib. phau ntawv vs. tsis siv neeg potting khoom
Kev faib tawm phau ntawv qhia batch- rau-batch inconsistency nyob rau hauv mix ratio thiab huab cua incorporation, thaum ib tugtsis siv neeg potting tshuab meters resin thiab hardener precisely thiab muaj peev xwm integrate degassing ncaj qha mus rau lub dispensing voj voog, txo tus neeg teb xov tooj - nyob ntawm variation.
b. sizing lub tshuab nqus tsev potting khoom rau koj coils
Lub chamber thiab lub twj tso kua mis me me rau lub tshuab hluav taws xob me me yuav tsis tas yuav ntsuas kom loj dua -voltage windings - loj dua, denser coils xav tau ob chav loj dua thiab lub twj tso kua mis muaj peev xwm ncav cuag thiab tuav lub hom phiaj lub tshuab nqus tsev txawm hais tias qhov ntim ntau dua ntawm cov cua tso tawm.
VI. Koj Yuav Tsum Saib Xyuas Dab Tsi Ua Ntej Yuav Xaiv Lub Tshuab Epoxy?
Tsis yog txhuatransformer potting compoundyog haum rau siab -voltage applications - dielectric zog, viscosity, thiab thermal expansion yam ntxwv txhua yam cuam tshuam rau qhov tsis muaj kev pheej hmoo thiab ntev - lub sij hawm cia siab rau.
ib. viscosity thiab ntws yam ntxwv
qis dua -viscosity resins ntws mus rau hauv qhov sib sib zog nqus nrawm dua yooj yim dua thiab tso cua nkag sai dua, uas feem ntau txo qhov tsis muaj kev pheej hmoo piv rau cov tuab, siab dua -viscosity compounds nyob rau hauv tib lub winding geometry.
b. dielectric thiab thermal zog
Tshaj li kev tiv thaiv npuas, cov khoom siv kho mob yuav tsum muaj lub zog dielectric txaus rau lub kauj qhov ntsuas qhov ntsuas hluav taws xob thiab cov yam ntxwv thermal expansion tau sib xws nrog cov xaim thiab cov ntaub ntawv tseem ceeb kom tsis txhob muaj kev ntxhov siab -voids dhau ntawm lub tshuab ua haujlwm lub neej.
VII. Qhov twg Winding zoo haum rau hauv qhov tsis muaj dab tsi - Pub dawb?
Potting kev vam meej pib zoo ua ntej cov resin poured - yuav ua li cas nruj nreem thiab tsis tu ncua lub kauj yog mob ncaj qha cuam tshuam qhov yooj yim resin thiab huab cua tuaj yeem txav los ntawm winding thaum lub sij hawm degassing.
Loosely los yog unevenly qhov txhab coils tsim loj, irregular gaps uas cuab cua unpredictably, thaum ib tug tsis tu ncua qhov txhab coil - hom uas ua rau ib tug precisioncoil winding tshuab manufacturers's cov khoom siv - muab cov resin ib txoj hauv kev zoo dua los sau, ua rau lub tshuab nqus tsev degassing kom deb li deb tau thiab rov ua dua.
KIOXIAwinding platforms yog tsim los nrog qhov sib xws ntawm qhov nro thiab tig - mus rau -tig precision uas teeb tsa siab -voltage coils rau kev txhim khu kev qha downstream potting, txo cov qhov tsis sib xws uas ua rau tsis muaj kev tshem tawm nyuaj txawm tias lub tshuab nqus tsev nws tus kheej khiav zoo npaum li cas.
Yog tias koj tab tom nrhiav yuav lub tshuab winding txhim khu kev qha lossis muaj lus nug ntsig txog, thov koj xav tiv taujtiv tauj peb cov kws tshaj lij; peb muaj kev pab tham dawb.
Tej zaum koj yuav txaus siab rau:
Yuav Ua Li Cas Kom Tau Txais Qhov Chaw Ntau Tshaj Plaws hauv Toroidal Chokes
Vim li cas Kaw -Loop Tension Control Matters hauv Fine Wire Winding
Evolution of Coil Winding Machines: 1900s – Niaj hnub no
