公开(公告)号：US20020036450A1

公开(公告)日：2002-03-28

申请号：US09867758

申请日：2001-05-31

发明人： Kenichi Nishikawa

IPC分类号： H01T013/38

CPC分类号： H01T13/38

摘要： A spark plug 100 has a glaze layer 2d formed on a surface of an alumina based insulator 2 contains 1 mol % or less of a Pb component in terms of PbO. The glaze layer 2d comprises 35 to 55 mol % of a Si component in terms of SiO2; 15 to 35 mol % of a B component in terms of B2O3; 5 to 20 mol % of a Zn component in terms of ZnO; 0.5 to 20 mol % of a Ba component in terms of BaO; and 10 to 15 mol % in total of at least one alkaline metal component of Na, K and Li, in terms of Na2O, K2O and Li2O, respectively.

摘要翻译： 火花塞100具有在氧化铝基绝缘体2的表面上形成的釉层2d含有PbO换算为1摩尔％以下的Pb成分。 釉层2d以SiO 2换算为35〜55摩尔％的Si成分， 以B 2 O 3换算B成分为15〜35摩尔％ 5〜20摩尔％的Zn成分，以ZnO计; 以BaO表示0.5〜20摩尔％的Ba成分; 和Na 2 O，K 2 O和Li 2 O中的至少一种Na，K和Li的至少一种碱金属组分分别为10至15mol％。

公开(公告)号：US20020067110A1

公开(公告)日：2002-06-06

申请号：US09964859

申请日：2001-09-28

申请人： NGK Spark Plug Co., Ltd.

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。

公开(公告)号：US20020036451A1

公开(公告)日：2002-03-28

申请号：US09867759

申请日：2001-05-31

发明人： Kenichi Nishikawa ,  Yoshihide Kouge ,  Makoto Sugimoto

IPC分类号： H01T013/38

CPC分类号： H01T13/38

摘要： A glaze layer 2d of the spark plug has the composition comprising 1 mol % or less of a Pb component in terms of PbO; 25 to 45 mol % of a Si component in terms of SiO2; 20 to 40 mol % of a B component in terms of B2O3; 5 to 25 mol % of a Zn component in terms of ZnO; 0.5 to 15 mol % of Ba and/or Sr components in terms of BaO or SrO; 5 to 10 mol % in total of at least one alkaline metal component of of Na, K and Li in terms of Na2O, K2O, and Li2, respectively, where K is essential; and further, 0.5 to 5 mol % in total of one or two kinds or more of Mo, W, Ni, Co, Fe and Mn in terms of MoO3, WO3, Ni3O4, Co3O4, Fe2O3, and MnO2, respectively.

摘要翻译： 火花塞的釉层2d具有以PbO换算为1摩尔％以下的Pb成分的成分。 25〜45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; 以ZnO计为5〜25摩尔％的Zn成分， 按BaO或SrO计为0.5〜15mol％的Ba和/或Sr组分; 分别为Na 2 O，K 2 O和Li 2的至少一种Na，K和Li的碱金属成分为5〜10摩尔％，其中K为必需的; 另外，分别以MoO 3，WO 3，Ni 3 O 4，Co 3 O 4，Fe 2 O 3和MnO 2计，Mo，W，Ni，Co，Fe和Mn中的一种或两种以上为0.5〜5摩尔％。