CAJ | 학술논문

火花塞陶瓷绝缘体的高温分流电阻会影响火花塞的使用性能和寿命，笔者研究了氧化铝中 N a2 O含量、配方组成和烧结温度对火花塞陶瓷绝缘体高温分流电阻的影响。结果表明：随着氧化铝原材料中 N a2 O含量的增加，试样的高温分流电阻逐渐降低；在配方组成中，当CaO的含量由33％增加至40％，氧化铝原材料中Na2 O含量为0．1％时，试样在500℃时的分流电阻由517 MΩ提升至1192 MΩ；烧结温度低于1580℃时，试样的高温分流电阻较低。
화화새도자절연체적고온분류전조회영향화화새적사용성능화수명，필자연구료양화려중 N a2 O함량、배방조성화소결온도대화화새도자절연체고온분류전조적영향。결과표명：수착양화려원재료중 N a2 O함량적증가，시양적고온분류전조축점강저；재배방조성중，당CaO적함량유33％증가지40％，양화려원재료중Na2 O함량위0．1％시，시양재500℃시적분류전조유517 MΩ제승지1192 MΩ；소결온도저우1580℃시，시양적고온분류전조교저。
The performance and life of the spark plug was influenced by shunt resistance of ceramic insulator at high temper-ature .In the present work ,the effect of Na2 O content in the alumina ,formula composition and sinter - ing temperature on shunt resistance of ceramic insulator at high temperature was studied .The results indicate that ,the shunt resistance of ce-ramic insulator at high temperature decreased with the increase content of Na 2 O in the alumina raw material ;the shunt re-sistor at 500 ℃ increased from 517 MΩ up to 1 192 MΩ when the CaO content of formula increased from 33% to 40% with alumina contained 0 .1% Na2O ;the shunt resistance at high temperature was low when the sintering temperature of ceramic insulator was below 1 580 ℃ .