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公开(公告)号：US20030122462A1
公开(公告)日：2003-07-03
申请号：US10178786
申请日：2002-06-25
发明人： Kenichi Nishikawa , Makoto Sugimoto
IPC分类号： H01T013/20
CPC分类号： H01T13/38
摘要： A spark plug comprising: a center electrode; a metal shell; and an alumina ceramic insulator disposed between the center electrode and the metal shell, wherein at least part of the surface of the insulator is covered with a glaze layer comprising oxides, the glaze layer comprising: 1 mol % or less of a Pb component in terms of PbO; 40 to 60 mol % of a Si component in terms of SiO2; 20 to 40 mol % of a B component in terms of B2O3; 0.5 to 25 mol % of a Zn component in terms of ZnO; 0.5 to 15 mol % in total of at least one of Ba and Sr components in terms of BaO and SrO, respectively; 2 to 12 mol % in total of at least one alkaline metal component of Na, K and Li, in terms of Na2O, K2O, and Li2O, respectively, wherein K is essential; and 0.1 to 5 mol % in total of at least one component of Bi, Sb and rare earth RE, RE being at least one selected from Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, in terms of Bi2O3, Sb2O5 and RE2O3, respectively, proviso that Ce is in terms of CeO2 and Pr is in terms of Pr7O11, wherein the glaze layer comprises 8 to 30 mol % in total of the Zn component and the at least one of Ba and Sr components in terms of ZnO, BaO and SrO, respectively.
摘要翻译： 一种火花塞，包括：中心电极; 金属壳; 以及设置在所述中心电极和所述金属壳体之间的氧化铝陶瓷绝缘体，其中所述绝缘体的表面的至少一部分被包含氧化物的釉层覆盖，所述釉层包含：1mol％以下的Pb成分 的PbO; 40〜60摩尔％的Si成分，以SiO2计; 以B 2 O 3换算为20〜40摩尔％的B成分; 0.5〜25摩尔％的Zn成分，以ZnO计; 分别为BaO和SrO中的Ba和Sr成分中的至少一种为0.5〜15摩尔％ 以Na 2 O，K 2 O和Li 2 O分别为2〜12摩尔％的Na，K和Li的至少一种碱金属成分，其中K为必需的; 和0.1〜5摩尔％的Bi，Sb和稀土RE中的至少一种成分，RE为选自Sc，Y，La，Ce，Pr，Nd，Sm，Eu，Gd，Tb，Dy中的至少一种 ，Ho，Er，Tm，Yb和Lu，分别为Bi 2 O 3，Sb 2 O 5和RE 2 O 3，条件是Ce以CeO 2计，Pr为Pr 7 O 11，其中釉层总计为8〜30摩尔％ 的Zn成分和Ba和Sr成分中的至少一种分别以ZnO，BaO和SrO换算。
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公开(公告)号：US20030051341A1
公开(公告)日：2003-03-20
申请号：US10179888
申请日：2002-06-26
发明人： Kenichi Nishikawa , Makoto Sugimoto
IPC分类号： B05D003/02
CPC分类号： H01T21/02 , Y10T29/49231
摘要： A method for producing a spark plug, the spark plug comprising a center electrode, a metal shell and an alumina ceramic insulator disposed between the center electrode and the metal shell, wherein at least part of the surface of the insulator is covered with a glaze layer, the method comprising the steps of: preparing a plurality of kinds of element glaze powders wherein each kind of the element glaze powders has a different dilatometric softening point and a different linear expansion coefficient compared to other kinds of element glaze powders; coating a surface of the insulator with the plurality of kinds of element glaze powders so as to form a glaze powder layer; and baking the glaze powder layer to the surface of the insulator so as to form the glaze layer by heating the glaze powder layer.
摘要翻译： 一种用于制造火花塞的方法，所述火花塞包括设置在所述中心电极和所述金属壳之间的中心电极，金属壳和氧化铝陶瓷绝缘体，其中所述绝缘体的表面的至少一部分被釉层覆盖 该方法包括以下步骤：制备多种元素釉粉，其中每种元釉粉与其它种类的釉粉相比具有不同的膨胀软化点和不同的线膨胀系数; 用多种元素釉粉末涂覆绝缘体的表面以形成釉粉层; 并将釉粉层烘烤到绝缘体的表面，以通过加热釉粉层形成釉层。
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公开(公告)号：US20030127959A1
公开(公告)日：2003-07-10
申请号：US10178905
申请日：2002-06-25
发明人： Kenichi Nishikawa , Makoto Sugimoto
IPC分类号： H01T013/20
摘要： A spark plug comprising: a center electrode; a metal shell; and an alumina ceramic insulator disposed between the center electrode and the metal shell, wherein at least part of the surface of the insulator is covered with a glaze layer comprising oxides, wherein the glaze layer comprises: 1 mol % or less of a Pb component in terms of PbO; 30 to 60 mol % of a Si component in terms of SiO2; 20 to 50 mol % of a B component in terms of B2O3; 0.5 to 25 mol % of a Zn component in terms of ZnO; 0.5 to 15 mol % in total of at least one of Ba and Sr components in terms of BaO and SrO, respectively; 2 to 12 mol % in total of at least two alkaline metal components of Na, K and Li, in terms of Na2O, K2O, and Li2O, respectively, wherein K and Li is essential; and 0.1 to 10 mol % of a F component in terms of F2.
摘要翻译： 一种火花塞，包括：中心电极; 金属壳; 以及设置在所述中心电极和所述金属壳体之间的氧化铝陶瓷绝缘体，其中所述绝缘体的表面的至少一部分被包含氧化物的釉层覆盖，其中所述釉层包含：1mol％以下的Pb成分 PbO条款; SiO 2为30〜60摩尔％的Si成分， 以B 2 O 3为20〜50摩尔％的B成分; 0.5〜25摩尔％的Zn成分，以ZnO计; 分别为BaO和SrO中的Ba和Sr成分中的至少一种为0.5〜15摩尔％ 按Na2O，K2O和Li2O分别为2〜12摩尔％的Na，K和Li的至少2种碱金属成分，其中K和Li为必需的; 和F2成分的F成分为0.1〜10摩尔％。
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公开(公告)号：US20030082982A1
公开(公告)日：2003-05-01
申请号：US10135845
申请日：2002-05-01
发明人： Kenichi Nishikawa , Makoto Sugimoto
IPC分类号： H01T021/02
摘要： A method for producing a spark plug, the spark plug comprising a center electrode, a metal shell and an alumina ceramic insulator disposed between the center electrode and the metal shell, wherein at least part of the surface of the insulator is covered with a glaze layer comprising oxides, the method comprising the steps of: preparing a coated glaze powder so that a surface of each particle of a glaze powder is covered by an elution-suppressing coating layer, the elution-suppressing coating layer suppressing an elution of water soluble component that is contained in each particle of the glaze powder; preparing a glaze slurry by suspending the glaze powder in a water solvent; applying the glaze slurry to a surface of the insulator so as to form a glaze powder-deposited layer; and baking the glaze powder-deposited layer to the surface of the insulator to form the glaze layer by heating the glaze powder-deposited layer.
摘要翻译： 一种用于制造火花塞的方法，所述火花塞包括设置在所述中心电极和所述金属壳之间的中心电极，金属壳和氧化铝陶瓷绝缘体，其中所述绝缘体的表面的至少一部分被釉层覆盖 所述方法包括以下步骤：制备涂覆的釉粉，使得釉粉的每个颗粒的表面被洗脱抑制涂层覆盖，所述洗脱抑制涂层抑制水溶性组分的洗脱， 包含在釉粉的每个颗粒中; 通过将釉粉末悬浮在水溶剂中制备釉浆料; 将所述釉浆施加到所述绝缘体的表面，以形成釉粉沉积层; 并通过加热釉料粉末沉积层将釉粉沉积层烘烤到绝缘体的表面以形成釉层。
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公开(公告)号：US20020067110A1
公开(公告)日：2002-06-06
申请号：US09964859
申请日：2001-09-28
发明人： Kenichi Nishikawa , Yoshihide Kouge
IPC分类号： H01T013/38
CPC分类号： H01T13/38
摘要： A spark plug retains a resistor and has formed on alumina-based insulator a glaze layer, in which the glaze layer contains Pb component in a content of 1 mol % or less in terms of PbO, contains Si component, B component, Zn component, Al component, Ba component and/or Sr component, and contains F component in a content of 1 mol % or less. In addition, the glaze layer contains one kind or more of alkaline metal components, with Li component being necessary, and further contains one kind or more of phosphate ion, sulfate ion, fluoride ion and chloride ion in a content of 0.5 to 10 mol %. The glaze layer has a Vickers hardness Hv of 100 or more, shows excellent strength, especially impact resistance in spite of a reduced content of Pb component.
摘要翻译： 火花塞保持电阻器，并且在氧化铝基绝缘体上形成釉层，其中釉层含有PbO含量为1摩尔％以下的Pb成分，含有Si成分，B成分，Zn成分， Al成分，Ba成分和/或Sr成分，含有1摩尔％以下的F成分。 此外，釉层含有一种以上的碱金属成分，需要Li成分，并且还含有0.5〜10摩尔％的磷酸根离子，硫酸根离子，氟离子和氯离子中的一种以上， 。 釉层的维氏硬度Hv为100以上，显示出优异的强度，特别是耐冲击性，尽管Pb成分含量降低。
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