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1.发明授权Method for producing a varistor based on a metal oxide and a varistor produced using this method 有权使用该方法制造基于金属氧化物的变阻器和使用该方法制造的变阻器的方法公开(公告)号：US06346872B1
公开(公告)日：2002-02-12
申请号：US09714513
申请日：2000-11-17
IPC分类号： H01L713
CPC分类号： H01C1/142 , H01C7/108 , H01C17/28 , Y10T29/49082 , Y10T29/49101
摘要： The method is used to produce a varistor which has a cylindrical resistance body (1) made from a material based on metal oxide, and two electrodes (2, 3) which are each arranged on one of two mutually parallel end faces of the cylindrical resistance body (1). In a first method step, a layer of electrode material is applied to both end faces, as far as their outer boundary (9), which is designed as a sharp edge. In a second method step, a circular ring (4), which is delimited by the outer boundary (9), runs to as far as the end face of the resistance body (1) and has a width of from approx. 10 to 500 &mgr;m, is removed from the electrode, or the resistance body (1) and electrode are beveled (5′) at the outer boundary. The method allows simple and economic manufacture of a varistor.
摘要翻译： 该方法用于制造具有由基于金属氧化物的材料制成的圆柱形电阻体（1）的变阻器和分别布置在圆柱形电阻的两个相互平行的端面中的一个上的两个电极（2,3） 身体（1）。 在第一方法步骤中，将电极材料层施加到两个端面，直到其外边界（9）被设计为尖锐边缘。 在第二种方法步骤中，由外边界（9）界定的圆环（4）延伸到电阻体（1）的端面的距离，并且具有约 10-500微米从电极上取下，或电阻体（1）和电极在外边界处倾斜（5'）。该方法允许简单经济地制造压敏电阻。
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2.发明授权Method for producing a varistor based on a metal oxide and a varistor produced using this method 有权使用该方法制造基于金属氧化物的变阻器和使用该方法制造的变阻器的方法公开(公告)号：US06199268B1
公开(公告)日：2001-03-13
申请号：US09304272
申请日：1999-05-06
IPC分类号： H01C1728
CPC分类号： H01C1/142 , H01C7/108 , H01C17/28 , Y10T29/49082 , Y10T29/49101
摘要： The method is used to produce a varistor which has a cylindrical resistance body (1) made from a material based on metal oxide, and two electrodes (2, 3) which are each arranged on one of two mutually parallel end faces of the cylindrical resistance body (1). In a first method step, a layer of electrode material is applied to both end faces, as far as their outer boundary (9), which is designed as a sharp edge. In a -second method step, a circular ring (4), which is delimited by the outer boundary (9), runs to as far as the end face of the resistance body (1) and has a width of from approx. 10 to 500 &mgr;m, is removed from the electrode, or the resistance body (1) and electrode are beveled (5′) at the outer boundary. The method allows simple and economic manufacture of a varistor.
摘要翻译： 该方法用于制造具有由基于金属氧化物的材料制成的圆柱形电阻体（1）的变阻器和分别布置在圆柱形电阻的两个相互平行的端面中的一个上的两个电极（2,3） 身体（1）。 在第一方法步骤中，将电极材料层施加到两个端面，直到其外边界（9）被设计为尖锐边缘。 在第二方法步骤中，由外边界（9）限定的圆环（4）延伸到电阻体（1）的端面的距离，并且具有从约 10-500微米从电极上取下，或电阻体（1）和电极在外边界处倾斜（5'）。该方法允许简单经济地制造压敏电阻。
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3.发明授权Resistor which is designed in the form of a column and is resistant to high current in particular a varistor on a metal-oxide base, and method for producing such a resistor 失效以列的形式设计并且耐大电流的电阻器，特别是金属氧化物基底上的变阻器，以及用于制造这种电阻器的方法公开(公告)号：US06342828B1
公开(公告)日：2002-01-29
申请号：US09001629
申请日：1997-12-31
IPC分类号： H01C710
CPC分类号： H01C7/108 , H01C7/12 , Y10T29/49082
摘要： The resistor is designed in the form of a column and has a cylindrical resistor body which is arranged between two planar electrodes, aligned parallel, and is made of a ceramic material. The resistor is preferably a varistor on a metal-oxide base, and is then used as a voltage-limiting element in an overvoltage suppressor. The strength of the ceramic material and the length of the resistor are chosen to be as great as possible. However, the length of the resistor is at most sufficiently large that damage to the ceramic resistor body caused by thermally produced pressure waves is avoided when the resistor is loaded in an electrical field of given magnitude with at least one highly energetic current pulse of defined amplitude, form and duration.
摘要翻译： 电阻器设计成柱状，并具有圆柱形电阻体，该圆柱形电阻体布置在平行的两个平面电极之间，并由陶瓷材料制成。 电阻器优选是金属氧化物基底上的变阻器，然后用作过电压抑制器中的限压元件。 选择陶瓷材料的强度和电阻器的长度尽可能大。 然而，电阻器的长度至多足够大，当电阻器被加载到给定幅度的电场中时，避免了由热产生的压力波引起的对陶瓷电阻体的损害，并且使用至少一个具有确定振幅的高能电流脉冲 ，形式和持续时间。
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4.发明授权Process for manufacturing a precursor powder for use in making a varistor and a powder manufactured in this process 失效制造前驱体粉末的方法和制造过程中制造的粉末和粉末的方法
公开(公告)号：US5143711A
公开(公告)日：1992-09-01
申请号：US446459
申请日：1989-12-05
IPC分类号： C04B35/626 , C01B13/36 , C04B35/453 , H01C7/10 , H01C7/112
CPC分类号： H01C7/112 , C01B13/363
摘要： A method for manufacturing a precursor powder for use in making a varistor is disclosed. This precursor powder is produced by preparing a homogeneous aqueous dispersion of metal oxides and/or metal hydroxides and heating the dispersion in a closed pressure reactor to a temperature between 200.degree. C. and 350.degree. C. for hydrothermally treating the homogeneous dispersion. The precursor powder produced in the afore-described method is highly homogeneous and of controlled crystal phase and morphology and after mixing with zinc oxide powder can homogeneously be reacted with the zinc oxide in a ceramic process.
摘要翻译： 公开了一种用于制造用于制造变阻器的前体粉末的方法。 该前体粉末是通过制备金属氧化物和/或金属氢氧化物的均匀水分散体并在密闭压力反应器中将分散体加热至200℃至350℃之间的温度来制备的，以水热处理均匀分散体。 在上述方法中制备的前体粉末是高度均匀的并且具有受控的结晶相和形态，并且与氧化锌粉末混合后，可以在陶瓷工艺中与氧化锌均匀地反应。
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