Umaleko wokutywina wangaphandle we-voltage ephezulu ye-ceramic capacitors, ngokukodwa umaleko we-epoxy, awusebenzi nje njengento egqunyiweyo kodwa uchaphazela kakhulu umgangatho kunye neempawu ze-capacitor ngokwayo.

 

Okokuqala kunye nokuphambili, ukudibanisa phakathi kweetshiphu ze-ceramic kunye ne-epoxy layer yindawo ebalulekileyo yokudibanisa. Ukudibanisa okungenamandla kunokukhokelela kwi-capacitance ephantsi. Ke ngoko, ukuxinana kwezi sayithi zokudityaniswa kuchaphazela ngokuthe ngqo intembeko yomaleko we-epoxy, kunye nekhonkco elixineneyo elikhokelela kwinani elincinane lokukhutshwa okungaphelelanga.

 

Okwesibini, ngexesha lokusebenza kwe-ceramic capacitors phantsi kombane ophezulu okanye iimeko zokukhupha, uxinzelelo olubangelwa ukushisa luyenzeka. Olu xinzelelo oluphindaphindiweyo lwe-thermal lubangela ukwanda kunye nokuphambana kwe-contraction phakathi kwezinto eziphambili, ezikhokelela kwi-resin delamination. Umthamo wokuchithwa kwegesi ngaphakathi kwe-capacitor uyancipha kakhulu, ngelixa uxinzelelo olukwi-epoxy layer lukhula ngokumangalisayo, okwenza i-capacitor ibe yinto engafanelekanga.

 

Ngaphezu koko, ngokuqhelekileyo kuyavunywa ukuba emva kwenkqubo ye-sintering kwiqondo lokushisa eliphezulu, i-capacitors idinga ixesha lokubuyisela ukunciphisa uxinzelelo lwe-thermal ngokusebenzisa iinkqubo zendalo. Okukhona ixesha lokubuyisela lide, kokukhona amandla e-capacitor's ukumelana noxinzelelo, ukuqinisekisa umgangatho ophezulu. Umzekelo, xa uthelekisa ii-capacitors ezisanda kuveliswa kunye nezo zithe zaphinda zachacha kangangeenyanga ezimbini, ezi zamva zibonisa ukunyamezelwa kwamandla ombane aphezulu, ukufikelela kumanqanaba angama-80kV nangaphezulu naxa kuvavanywa kwi-60kV ekuqaleni.

 

Ngaphezu koko, ukukhethwa kwezinto ze-epoxy kunokuchaphazela ukusebenza kwee-capacitors kumaqondo obushushu ahlukeneyo. Ezinye ii-capacitors ze-ceramic ezine-voltage ephezulu zinokufumana ukuncipha kokusebenza kumaqondo obushushu aphantsi. Umzekelo, ukuba iphantsi kweqondo lomkhenkce elisezantsi ukuya kuma-30 degrees celsius, iintanda zinokuvela ngenxa yeempawu ezimbi ze-epoxy kubushushu obuphantsi obunjalo okanye ukungahambelani nokwandiswa kunye nokucutheka kweetshiphusi ze-ceramic. Ngenxa yoko, uxinzelelo olungaguquguqukiyo olubangelwa kubanda kakhulu luyasilela ukunciphisa umthamo ukuya kwinqanaba elifanayo, elikhokelela kuxinzelelo lwesakhiwo.

 

Ngokujongana nale miba kunye nokuqinisekisa umgangatho we-epoxy layer, abavelisi banokuphucula ukusebenza ngokubanzi kunye nokuthembeka kwee-capacitors zombane ophezulu.