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公开(公告)号：US4288714A
公开(公告)日：1981-09-08
申请号：US45888
申请日：1979-06-06
CPC分类号： H01T13/20
摘要： A spark plug for an internal combustion engine with both sides of a surface, on a center electrode side, of an outer electrode and/or both side portions, on the top surface of the center electrode, form wedge-shaped projections. At least one surface having the wedge-shaped projection has no plane surface but is arcuate.
摘要翻译： 在中心电极的上表面上，具有在外电极和/或两侧部的中心电极侧的表面的两侧的内燃机的火花塞形成楔形突起。 具有楔形突起的至少一个表面没有平面，但是是弓形的。
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公开(公告)号：US06923699B2
公开(公告)日：2005-08-02
申请号：US10372830
申请日：2003-02-26
CPC分类号： H01T21/02 , Y10T29/5193 , Y10T29/5195
摘要： A method of making a spark plug having a noble metal chip joined to an electrode main body of a ground electrode by interposing therebetween an intermediate member. The method comprises the steps of prior to joining the noble metal chip to the electrode main body, joining the intermediate member and the noble metal chip together, placing a noble metal chip and intermediate member assembly on the electrode main body in a way as to allow the intermediate member to contact the electrode main body, and welding the electrode main body and the intermediate member together while restricting relative movement of the electrode main body and the intermediate member without applying an urging force to a joint between the intermediate member and the noble metal chip.
摘要翻译： 一种制造火花塞的方法，该火花塞具有通过插入中间构件而接合到接地电极的电极主体上的贵金属芯片。 该方法包括以下步骤：在将贵金属芯片接合到电极主体之前，将中间构件和贵金属芯片接合在一起，将贵金属芯片和中间构件组件放置在电极主体上以允许 所述中间部件与所述电极主体接触，并且将所述电极主体和所述中间部件焊接在一起，同时限制所述电极主体和所述中间部件的相对移动，而不向所述中间部件和所述贵金属 芯片。
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公开(公告)号：US07419536B2
公开(公告)日：2008-09-02
申请号：US10558173
申请日：2004-02-18
申请人： Akihiro Aiba , Yoshiyuki Hisumi , Kazumi Kawamura
发明人： Akihiro Aiba , Yoshiyuki Hisumi , Kazumi Kawamura
IPC分类号： C23C18/31
摘要： There is provided a cyanide-free immersion type electroless gold plating liquid that is low in toxicity, can be used near a neutral ph, and has a good solder adhesion and plating film adhesion. The electroless gold plating liquid contains a cyanide-free water-soluble gold compound and a pyrosulfurous acid compound. The plating liquid may further contain a sulfurous acid compound and an aminocarboxylic acid compound. Pyrosulfurous acid or an alkali metal, alkaline earth metal, ammonium, or another such salt thereof can be used as the pyrosulfurous acid compound.
摘要翻译： 提供了一种毒性低的无氰浸没式无电镀金液，可以在中性PH附近使用，具有良好的焊接粘附性和电镀膜附着力。 化学镀金液含有不含氰化物的水溶性金化合物和焦亚硫酸化合物。 电镀液还可以含有亚硫酸化合物和氨基羧酸化合物。 可以使用焦亚磺酸或其碱金属，碱土金属，铵或其它盐作为焦亚硫酸化合物。
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公开(公告)号：US07390354B2
公开(公告)日：2008-06-24
申请号：US10570394
申请日：2005-06-23
申请人： Akihiro Aiba , Kazumi Kawamura
发明人： Akihiro Aiba , Kazumi Kawamura
IPC分类号： C23C18/31
CPC分类号： C23C18/54 , C23C18/1651 , C23C18/32 , Y10T428/31678
摘要： A cyanide-free immersion type electroless gold plating solution that is less toxic can be used at near neutrality and gives an excellent and improved solder adhesion and plated film adhesion is provided.The electroless gold plating solution contains a cyanide-free water-soluble gold compound, a pyrosulfurous acid compound and a thiosulfuric acid compound. This plating solution preferably further contains a sulfurous acid compound and an aminocarboxylic acid compound. Pyrosulfurous acid and alkali metal salts, alkaline-earth metal salts, ammonium salts and other salts thereof can be used as the pyrosulfurous acid compound.
摘要翻译： 在中性附近可以使用毒性较低的无氰浸渍型无电镀金溶液，并提供优异且改善的焊料粘合性，并提供镀膜附着力。 无电镀金液含有不含氰化物的水溶性金化合物，焦亚硫酸化合物和硫代硫酸化合物。 该镀液优选还含有亚硫酸化合物和氨基羧酸化合物。 焦亚硫酸及其碱金属盐，碱土金属盐，铵盐和其它盐可用作焦亚硫酸化合物。
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公开(公告)号：US20070209548A1
公开(公告)日：2007-09-13
申请号：US11632815
申请日：2005-08-22
IPC分类号： C23C18/31
CPC分类号： C23C18/54
摘要： The invention provides a displacement electroless gold plating solution that is low in toxicity, can be used at a pH near to neutrality, and affords good solder adhesion and film adhesion. The displacement electroless gold plating solution contains a non-cyanide water-soluble gold compound and a hydrogensulfite compound. Preferably, the plating solution further contains a thiosulfuric acid compound or an aminocarboxylic acid compound. Sodium hydrogensulfite, potassium hydrogensulfite, ammonium hydrogensulfite or the like can be used as the hydrogensulfite compound.
摘要翻译： 本发明提供一种毒性低的置换无电镀金溶液，可以在接近中性的pH下使用，并提供良好的焊接粘合性和膜粘合性。 位移无电镀金液含有非氰化物水溶性金化合物和亚硫酸氢盐化合物。 优选地，电镀液还含有硫代硫酸化合物或氨基羧酸化合物。 亚硫酸氢钠，亚硫酸氢钾，亚硫酸氢铵等可用作亚硫酸氢盐化合物。
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公开(公告)号：US20060230979A1
公开(公告)日：2006-10-19
申请号：US10558173
申请日：2004-02-18
申请人： Akihiro Aiba , Yoshiyuki Hisumi , Kazumi Kawamura
发明人： Akihiro Aiba , Yoshiyuki Hisumi , Kazumi Kawamura
IPC分类号： C23C18/31
摘要： There is provided a cyanide-free immersion type electroless gold plating liquid that is low in toxicity, can be used near neutral, and has good solder adhesion and plating film adhesion. An electroless gold plating liquid containing a cyanide-free water-soluble gold compound and a pyrosulfurous acid compound. The plating liquid may further contain a sulfurous acid compound and an aminocarboxylic acid compound. Pyrosulfurous acid or an alkali metal, alkaline earth metal, ammonium, or other such salt thereof can be used as the pyrosulfurous acid compound.
摘要翻译： 提供一种毒性低的无氰浸渍式无电镀金液体，可以接近中性使用，具有良好的焊锡附着力和镀膜附着力。 含有不含氰化物的水溶性金化合物和焦亚硫酸化合物的无电镀金液。 电镀液还可以含有亚硫酸化合物和氨基羧酸化合物。 焦亚硫酸或其碱金属，碱土金属，铵或其它盐可用作焦亚硫酸化合物。
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7.发明授权
公开(公告)号：US5514929A
公开(公告)日：1996-05-07
申请号：US253311
申请日：1994-06-03
申请人： Kazumi Kawamura
发明人： Kazumi Kawamura
CPC分类号： H01T13/39
摘要： In a spark plug for a gas engine including a ground electrode (4) whose front end is to be placed in a combustion chamber of a gas engine which is driven by gaseous fuel, a metallic shell (3) enclosing a center electrode (5) which has a noble metal tip (18) superior in spark-erosion resistance at a firing portion in which a spark discharge occurs against the ground electrode (4). A resistor (10) is provided within the spark plug or a spark plug cap so as to be included in a spark plug voltage circuit which applies a high voltage to the center electrode. It is preferable that the noble metal tip (18) has a diameter in a range of 0.5.about.1.5 mm, and that the resistor has an electrical resistance greater than or equal to 50 k.OMEGA..
摘要翻译： 在用于燃气发动机的火花塞中，包括前端将被放置在由气体燃料驱动的燃气发动机的燃烧室中的接地电极（4），包围中心电极（5）的金属壳（3） 其具有在对接地电极（4）发生火花放电的点火部分具有优异的耐火花腐蚀性的贵金属电极头（18）。 在火花塞或火花塞帽内设置电阻器（10），以便包括在向中心电极施加高电压的火花塞电压电路中。 优选的是，贵金属端头（18）的直径在0.5微米的范围内，并且电阻器具有大于或等于50k欧姆电阻的电阻。
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公开(公告)号：US07396394B2
公开(公告)日：2008-07-08
申请号：US11632815
申请日：2005-08-22
IPC分类号： C23C18/42
CPC分类号： C23C18/54
摘要： The invention provides a displacement electroless gold plating solution that is low in toxicity, can be used at a pH near to neutrality, and affords good solder adhesion and film adhesion. The displacement electroless gold plating solution contains a non-cyanide water-soluble gold compound and a hydrogensulfite compound. Preferably, the plating solution further contains a thiosulfuric acid compound or an aminocarboxylic acid compound. Sodium hydrogensulfite, potassium hydrogensulfite, ammonium hydrogensulfite or the like can be used as the hydrogensulfite compound.
摘要翻译： 本发明提供一种毒性低的置换无电镀金溶液，可以在接近中性的pH下使用，并提供良好的焊接粘合性和膜粘合性。 位移无电镀金液含有非氰化物水溶性金化合物和亚硫酸氢盐化合物。 优选地，电镀液还含有硫代硫酸化合物或氨基羧酸化合物。 亚硫酸氢钠，亚硫酸氢钾，亚硫酸氢铵等可用作亚硫酸氢盐化合物。
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公开(公告)号：US20060269761A1
公开(公告)日：2006-11-30
申请号：US10570394
申请日：2005-06-23
申请人： Akihiro Aiba , Kazumi Kawamura
发明人： Akihiro Aiba , Kazumi Kawamura
CPC分类号： C23C18/54 , C23C18/1651 , C23C18/32 , Y10T428/31678
摘要： A cyanide-free immersion type electroless gold plating solution that is less toxic, that can be used at near neutrality, and that gives an excellent and improved solder adhesion and plated film adhesion is provided. An electroless gold plating solution, comprising a cyanide-free water-soluble gold compound, a pyrosulfurous acid compound and a thiosulfuric acid compound. This plating solution preferably further contains a sulfurous acid compound and an aminocarboxylic acid compound. Pyrosulfurous acid and alkali metal salts, alkaline-earth metal salts, ammonium salts and other salts thereof can be used as the pyrosulfurous acid compound.
摘要翻译： 本发明提供一种毒性较小的无氰浸渍型无电镀金液，其可以在近中性条件下使用，并提供优异的焊接附着力和镀膜附着力。 一种无电镀金液，包含不含氰化物的水溶性金化合物，焦亚硫酸化合物和硫代硫酸化合物。 该镀液优选还含有亚硫酸化合物和氨基羧酸化合物。 焦亚硫酸及其碱金属盐，碱土金属盐，铵盐和其它盐可用作焦亚硫酸化合物。
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公开(公告)号：US06703770B2
公开(公告)日：2004-03-09
申请号：US10119716
申请日：2002-04-11
申请人： Akira Suzuki , Takahiro Suzuki , Kazumi Kawamura , Kazuya Iwata
发明人： Akira Suzuki , Takahiro Suzuki , Kazumi Kawamura , Kazuya Iwata
IPC分类号： H01T1320
CPC分类号： H01T13/08
摘要： A spark plug has a central electrode, an insulator surrounding the central electrode and a metallic shell retaining therein the insulator and provided with no thread thereon. The spark plug is clearance fitted in a plug hole of a cylinder head, without being screwed into the plug hole, in such a manner that a front end portion of the metallic shell is accommodated in a front end section of the plug hole with a clearance therebetween provided with a sealant so as to transmit heat from the spark plug to the cylinder head. The clearance is preferably given by the following expression: 0.005≦D−d1≦0.05, where D is an inner diameter (mm) of the front end section and d1 is an outer diameter (mm) of the front end portion. By this, the spark plug can be easily attached to the cylinder head and attain improved heat resistance.
摘要翻译： 火花塞具有中心电极，围绕中心电极的绝缘体和保持绝缘体并且在其上没有线的金属壳。 火花塞间隙安装在气缸盖的插头孔中，而不会被拧入插塞孔中，使得金属壳的前端部分容纳在插塞孔的前端部分中，间隙 其间设置有密封剂，以将热量从火花塞传递到气缸盖。 间隙优选由以下表达式给出：0.005 <= D-D1 <= 0.05，其中D是前端部分的内径（mm），d1是前端部分的外径（mm）。 由此，火花塞可以容易地附接到气缸盖并获得改善的耐热性。
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