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公开(公告)号:US4981624A
公开(公告)日:1991-01-01
申请号:US242940
申请日:1988-09-09
申请人: Koichi Tsuda , Kazuo Mukae , Toyoshige Sakaguchi , Takashi Ishii
发明人: Koichi Tsuda , Kazuo Mukae , Toyoshige Sakaguchi , Takashi Ishii
摘要: A method of producing a voltage nonlinear ZnO varistor in which seed grains of ZnO are produced by spray drying a slurry of ZnO particles and then sintering the dried slurry to form seed grains having a size of 10 to 100.mu.m. The seed grains are mixed with a ZnO powder of particles of much smaller size than the seed grains and a small amount of an auxiliary component. The mixture is then molded and sintered to form the varistor element to which electrodes are attached.
摘要翻译: 一种制造电压非线性ZnO压敏电阻的方法,其中通过喷雾干燥ZnO颗粒的浆料然后将干燥的浆料烧结以形成尺寸为10至100μm的晶种,制备ZnO晶种。 将种子晶粒与粒径小于粒子的ZnO粉末和少量的辅助成分混合。 然后将混合物模制和烧结以形成电极附接到的变阻器元件。
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公开(公告)号:US4386022A
公开(公告)日:1983-05-31
申请号:US191337
申请日:1980-02-12
申请人: Ikuo Nagasawa , Kazuo Mukae , Koichi Tsuda , Takashi Ishii , Toyoshige Sakaguchi
发明人: Ikuo Nagasawa , Kazuo Mukae , Koichi Tsuda , Takashi Ishii , Toyoshige Sakaguchi
IPC分类号: H01C7/10 , C04B35/453 , H01C7/112 , H01B1/06
CPC分类号: H01C7/112
摘要: A voltage non-linear resistance ceramics having a larger voltage non-linear coefficient and a superior protection ability against the overvoltage is prepared by firing an essential component of zinc oxide added with the accessary components of one or more elements in the form of elements or compounds. As the accessary components, at least one of magnesium and calcium in addition to praseodymium, cobalt, potassium and chromium in the predetermined amounts are added to obtain a voltage non-linear resistance ceramics with a sufficient reduction of the leakage current and an increased protection ability against the overvoltage.
摘要翻译: PCT No.PCT / JP79 / 00152 Sec。 371日期1980年2月12日 102(e)日期1980年2月12日PCT申请日1979年6月14日PCT公布。 公开号WO80 / 00114 日期:1980年1月24日。具有较大电压非线性系数和对过电压的优异保护能力的电压非线性电阻陶瓷通过焙烧添加有一种或多种元素的附着组分的氧化锌的必需组分 以元素或化合物的形式。 作为附属成分,添加规定量的除了镨,钴,钾,铬以外的镁,钙中的至少一种,得到电流非线性电阻陶瓷,能够充分降低漏电流,提高保护能力 针对过电压。
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公开(公告)号:US5140296A
公开(公告)日:1992-08-18
申请号:US648132
申请日:1991-01-30
申请人: Toyoshige Sakaguchi , Kazuo Mukae , Koichi Tsuda
发明人: Toyoshige Sakaguchi , Kazuo Mukae , Koichi Tsuda
IPC分类号: C04B35/453 , H01C7/112
CPC分类号: H01C7/112 , C04B35/453
摘要: A voltage-dependent nonlinear resistor from a sintered composition of zinc oxide (ZnO) as a chief component and the following auxiliary components: a rare earth element; cobalt (Co); at least one of magnesium (Mg) and calcium (Ca); at least one of potassium (K), cesium (Cs) and rubidium (Rb); chromium (Cr); boron (B); at least one of aluminum (Al), gallium (Ga) and indium (In); and at least one of antimony (Sb), niobium (Nb), tungsten (W), tantalum (Ta) and phosphorus (P). A voltage-dependent nonlinear resistor from a sintered composition of zinc oxide (ZnO) as a chief component and the following auxiliary components: praseodymium (Pr); cobalt (Co); potassium (K); chromium (Cr); and at least one of antimony (Sb), niobium (Nb) and tungsten (W).
摘要翻译: 作为主要成分的氧化锌(ZnO)的烧结组合物的电压依赖性非线性电阻和以下辅助成分:稀土元素; 钴(Co); 镁(Mg)和钙(Ca)中的至少一种; 钾(K),铯(Cs)和铷(Rb)中的至少一种; 铬(Cr); 硼(B); 铝(Al),镓(Ga)和铟(In)中的至少一种; 和锑(Sb),铌(Nb),钨(W),钽(Ta)和磷(P)中的至少一种。 以氧化锌(ZnO)为主要成分的烧结组合物和以下辅助成分:镨(Pr); 钴(Co); 钾(K); 铬(Cr); 和锑(Sb),铌(Nb)和钨(W)中的至少一种。
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