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1. 发明专利

JP2014035942A Electrode material, spark plug electrode, and spark plug 有权
标题翻译：电极材料，SPARK PLUG电极和SPARK插头
公开(公告)号：JP2014035942A
公开(公告)日：2014-02-24
申请号：JP2012177309
申请日：2012-08-09
申请人： Sumitomo Electric Ind Ltd , 住友電気工業株式会社 , Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： TAKAGI YOSHIYUKI , TANJI AKIRA , NISHIKAWA TAICHIRO , YAMAZAKI KAZUO , YOSHIMOTO OSAMU , SHIBATA TSUTOMU
IPC分类号： H01T13/39 , C22C19/05 , C22F1/00 , C22F1/10 , F02P13/00
摘要： PROBLEM TO BE SOLVED: To provide an electrode material suitable for a constituent material of a spark plug electrode which is superior in high-temperature oxidation resistance, spark wearing resistance and perspiration resistance, and to provide a spark plug electrode and a spark plug.SOLUTION: An electrode material is utilized for a spark plug electrode. The electrode material comprises: a total of less than 0.5 mass% of Al and Si, provided that at least one of Al and Si accounts for 0.01-0.4 mass%; a total of less than 1.5 mass% of Cr and Mn provided that Cr accounts for 0.05-0.8 mass%, and Mn accounts for 0.05-0.8 mass%; 0.3-1.0% of Y; and the balance consisting of Ni and inevitable impurities. The electrode material has the following advantages: (1) the oxidation of an electrode is suppressed and thus a good oxidation resistance is achieved because of the presence of a Y-containing intermetallic compound, and the formation of an oxide layer of Si, etc.; (2) the expansion of the oxide layer or the like resulting from the excessive addition of Si, etc. is suppressed and good perspiration resistance is achieved because Cr and Mn are included within a particular range in addition to Si and Al; and (3) the increase in the specific resistance is suppressed and good spark wearing resistance is achieved because the additive elements are included within a particular range.
摘要翻译：要解决的问题：提供适合于高温抗氧化性，耐火花性和耐汗性优异的火花塞电极的构成材料的电极材料，并且提供火花塞电极和火花塞。：电极材料用于火花塞电极。电极材料包括：Al和Si总量小于0.5质量％，条件是Al和Si中的至少一种占0.01-0.4质量％; Cr和Mn的总量小于1.5质量％，Cr为0.05〜0.8质量％，Mn为0.05〜0.8质量％。 0.3-1.0％的Y; 余量由Ni和不可避免的杂质组成。电极材料具有以下优点：（1）由于含有Y的金属间化合物的存在和Si等的氧化物层的形成，电极的氧化被抑制，因此具有良好的抗氧化性。 ; （2）由于过量添加Si等导致的氧化物层等的膨胀被抑制，并且除了Si和Al之外还包括Cr和Mn在特定范围内，因此具有良好的耐汗性。和（3）由于添加元素被包含在特定的范围内，因此抑制了电阻率的增加，并且实现良好的耐火花性。

2. 发明专利

JP2010108939A Electrode material for spark plug 有权
标题翻译：火花塞电极材料
公开(公告)号：JP2010108939A
公开(公告)日：2010-05-13
申请号：JP2009269131
申请日：2009-11-26
申请人： Ngk Spark Plug Co Ltd , Sumitomo Electric Ind Ltd , 住友電気工業株式会社 , 日本特殊陶業株式会社
发明人： YOSHIMOTO OSAMU , NUNOME KENJI , NAKAI YOSHIHIRO , NISHIKAWA TAICHIRO , TANJI AKIRA , YAMAZAKI KAZUO
IPC分类号： H01T13/39 , C22C19/03
摘要： PROBLEM TO BE SOLVED: To provide a spark plug capable of attaining sufficient high-temperature oxidation resistance and sufficient spark consumption resistance by using an electrode material in which an intermetallic compound is precipitated in a base phase of nickel for an electrode.
SOLUTION: The electrode material in which Ni is a principal component and the intermetallic compound of Ni-Y is precipitated at least on grain boundaries is used for a center electrode and a ground electrode of the spark plug. Oxidation of the center electrode and the ground electrode used under a severe environment where spark discharge is repetitively carried out while being exposed to a high temperature of nearly 1,000°C tends to advance since penetration of oxygen inside the electrodes becomes easy through grain boundaries owing to simplification of a structure of grain boundaries when crystal grains of the electrode material grow to larger grains. However, high-temperature oxidation resistance of the spark plug is high since grain growth of the crystal grains is restrained by the intermetallic compound precipitated on the grain boundaries. Internal corrosion is hardly generated since oxygen is not included in the compound. Furthermore, spark consumption resistance can be improved by adjusting the content of components to maintain thermal conductivity.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种火花塞，其能够通过使用其中金属间化合物在电极的镍相的基极相中析出的电极材料获得足够的高温抗氧化性和足够的耐火花消耗性。解决方案：将火花塞的中心电极和接地电极用于Ni中主要成分的电极材料和Ni-Y的金属间化合物至少析出在晶界上。在暴露于近1000℃的高温下重复进行火花放电的恶劣环境下使用的中心电极和接地电极的氧化倾向于提高，因为电极内的氧气渗透容易通过晶界容易当电极材料的晶粒生长到更大的晶粒时，简化晶界的结构。然而，火花塞的高温抗氧化性高，因为晶粒的晶粒生长受到析出在晶界上的金属间化合物的限制。内部腐蚀几乎不产生，因为化合物中不包括氧。此外，通过调节组分的含量以保持导热性，可以提高火花消耗电阻。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2009016278A Spark plug 有权
标题翻译： SPARK插头
公开(公告)号：JP2009016278A
公开(公告)日：2009-01-22
申请号：JP2007179066
申请日：2007-07-06
申请人： Ngk Spark Plug Co Ltd , Sumitomo Electric Ind Ltd , 住友電気工業株式会社 , 日本特殊陶業株式会社
发明人： YOSHIMOTO OSAMU , NUNOME KENJI , NAKAI YOSHIHIRO , NISHIKAWA TAICHIRO , TANJI AKIRA , YAMAZAKI KAZUO
IPC分类号： H01T13/39 , C22C19/03 , C22F1/00 , C22F1/10
CPC分类号： H01T13/39 , H01T13/20
摘要： PROBLEM TO BE SOLVED: To provide a spark plug capable of acquiring a sufficient high temperature oxidation-proof property and spark-proof consumption by using an electrode material wherein an intermetallic compound is deposited on a host phase of nickel as an electrode.
SOLUTION: The electrode material wherein nickel is a principal component and the intermetallic compound (N-Y) is deposited at least on a grain boundary is used as a center electrode and a ground electrode of the spark plug. In the center electrode and ground electrode used in a severe environment where spark discharges are repeated while exposed at temperature of approximately 1,000°C, when crystal grains of the electrode material are grown, oxidation of the electrode material is apt to advance since a structure of the grain boundary becomes simple and oxygen is easily penetrated into the inside through the grain boundary. However, the high temperature oxidation-proof property of the electrode material is high because growth of the crystal grain is restrained by the intermetallic compound deposited in the grain boundary, and internal corrosion of the electrode material is hardly generated because oxygen is not included in the compound. Further, the spark-proof consumption of the electrode material is improved by adjusting the contents of components and maintaining heat-conductivity.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够通过使用金属间化合物沉积在镍的主体相上作为电极的电极材料来获得足够的高温抗氧化性和防火花消耗的火花塞。
解决方案：将镍作为主要成分的电极材料和金属间化合物（N-Y）至少沉积在晶界上，用作火花塞的中心电极和接地电极。在中心电极和接地电极中，在暴露于大约1000℃的温度下重复火花放电的恶劣环境中，当生长电极材料的晶粒时，由于电极材料的氧化容易前进，因此，晶界变得简单，并且氧容易通过晶界渗透到内部。然而，电极材料的高温抗氧化性能高，因为晶粒的生长被沉积在晶界中的金属间化合物所限制，并且几乎不产生电极材料的内部腐蚀，因为氧不包括在复合。此外，通过调节部件的含量并保持导热性，可以提高电极材料的防火花消耗。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2011252199A Ni-BASED ALLOY 有权
标题翻译：镍基合金
公开(公告)号：JP2011252199A
公开(公告)日：2011-12-15
申请号：JP2010126602
申请日：2010-06-02
申请人： Daido Steel Co Ltd , Ngk Spark Plug Co Ltd , Sumitomo Electric Ind Ltd , 住友電気工業株式会社 , 大同特殊鋼株式会社 , 日本特殊陶業株式会社
发明人： UEDA SHIGENORI , YOSHIMOTO OSAMU , TANAKA TOMOO , KUNO TAKETO , TOMITA ARATA , YAMAZAKI KAZUO , NAKAI YOSHIHIRO
IPC分类号： C22C19/05
摘要： PROBLEM TO BE SOLVED: To provide an Ni-based alloy excellent in high-temperature oxidation resistance, high-temperature nitriding resistance, fatigue resistance and ductility.SOLUTION: The Ni-based alloy contains, by mass, 0.005%≤C
摘要翻译：要解决的问题：提供高温抗氧化性，高温耐氮化性，耐疲劳性和延展性优异的Ni基合金。解决方案：Ni基合金以质量计含有0.005％≤C<0.10％，1.0％

5. 发明专利

JP2008053018A Spark plug for internal combustion engine 审中-公开
标题翻译：火花塞用于内燃机
公开(公告)号：JP2008053018A
公开(公告)日：2008-03-06
申请号：JP2006227258
申请日：2006-08-24
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： YOSHIMOTO OSAMU , NUNOME KENJI
IPC分类号： H01T13/39 , C22C5/04
摘要： PROBLEM TO BE SOLVED: To suppress pitting phenomenon caused by an Ir-specific catalytic reaction, in relation to a spark plug provided with a noble metal chip containing Ir as a main component. SOLUTION: The noble metal chip 31 is arranged at a tip of a center electrode 5 of this spark plug 1, a noble metal chip 32 are arranged at a tip of a ground electrode 27, and the gap between both the noble metal chips 31 and 32 is used as a spark discharge gap 33. At least one kind out of Cr, Ti and Ba is included in an Ir alloy constituting the noble metal chips 31 and 32. The noble metal chips 31 and 32 are formed by once melting a raw material containing Ir as a main component to obtain an Ir alloy, and subjecting it to hot forging, hot rolling and wire drawing work. That is to say, Ir, and Cr, Ti or Ba are once melted and uniformed. Thereby, Ir is protected by an oxide film of Cr, Ti or Ba, and an Ir-specific catalytic reaction can be effectively suppressed even when fuel directly hits against the chip. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了抑制由Ir特异性催化反应引起的点蚀现象，关于设置有以Ir为主要成分的贵金属芯片的火花塞。解决方案：贵金属芯片31布置在该火花塞1的中心电极5的前端，贵金属芯片32布置在接地电极27的尖端处，并且贵金属芯片31和32被用作火花放电间隙33.在构成贵金属芯片31和32的Ir合金中包括至少一种Cr，Ti和Ba。贵金属芯片31和32由一次形成熔化以Ir为主要成分的原料，得到Ir合金，进行热锻，热轧，拉丝加工。也就是说，Ir，Cr，Ti或Ba一度熔化并均匀。由此，Ir被Cr，Ti或Ba的氧化物膜保护，即使燃料直接撞击芯片也能够有效地抑制Ir特异性催化反应。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2007227189A Spark plug for internal combustion engine and manufacturing method 有权
标题翻译：用于内燃机和制造方法的火花塞
公开(公告)号：JP2007227189A
公开(公告)日：2007-09-06
申请号：JP2006047633
申请日：2006-02-24
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： YOSHIMOTO OSAMU , MATSUTANI WATARU
IPC分类号： H01T13/39 , C22C5/04 , C22F1/00 , C22F1/14 , H01T13/20 , H01T21/02
摘要： PROBLEM TO BE SOLVED: To provide a spark plug comprising an ignition part having a first main component of Pt and a second component of Ni, which hardly causes trouble such as cracking, peeling or dropping-out of the ignition part.
SOLUTION: In this spark plug, an ignition part 31 is provided at a tip of a central electrode 3, an ignition part 32 opposed to the ignition part 31 is provided at a tip of a grounding electrode 4, and the gap between both the ignition part 31 and 32 corresponds to a spark discharge gap 33. Each of the ignition parts 31 and 32 comprises Pt as the main first component and Ni as the second component. The chip-like ignition parts 31 and 32 have an average value of crystal grain orientation ratio of 0.5 or less and a Vickers hardness of 350 Hv or less by performing a predetermined heat treatment thereto after plastic working. Consequently, enlargement of grain size of the crystal grains is suppressed, whereby deterioration of the mechanical strength is suppressed, and internal cracking resulted from working distortion can be consequently solved.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种火花塞，其包括具有Pt的第一主要成分的点火部件和Ni的第二部件，其几乎不引起点火部件的开裂，剥离或脱落等问题。解决方案：在该火花塞中，点火部31设置在中心电极3的前端，与点火部31相对的点火部32设置在接地电极4的前端，点火部分31和32都对应于火花放电间隙33.点火部件31和32中的每一个包括Pt作为主要的第一部件，而Ni作为第二部件。芯片状点火部31,32通过在塑性加工后进行规定的热处理，其晶粒取向比的平均值为0.5以下，维氏硬度为350Hv以下。因此，晶粒的晶粒尺寸的增大被抑制，从而能够抑制机械强度的劣化，从而可以解决由于加工变形引起的内部裂纹。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2006147406A Spark plug 审中-公开
标题翻译： SPARK插头
公开(公告)号：JP2006147406A
公开(公告)日：2006-06-08
申请号：JP2004337491
申请日：2004-11-22
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： YOSHIMOTO OSAMU , KUMAGAI KENICHI
IPC分类号： H01T13/20 , C22C5/04 , H01T13/32 , H01T13/39 , H01T21/02
摘要： PROBLEM TO BE SOLVED: To provide a noble metal chip having good joining capability to a grounding electrode and excellent spark consumption resistance.
SOLUTION: This noble metal chip 90 is formed of a clad material composed by joining an inner alloy 91 containing platinum as a main constituent with at least one of rhodium, iridium, nickel, tungsten, palladium, ruthenium and osmium added therein to an outer alloy 92 containing iridium as a main constituent with at least one of rhodium, platinum, nickel, tungsten, palladium, ruthenium and osmium added therein in a direction perpendicular to an axial line. Since the inner alloy has high joining capability to a grounding electrode and the joining to the outer alloy is reinforced, sufficient joining strength can be provided even if it is resistance-welded to the grounding electrode of a spark plug, and coming off after the joining is prevented. Since the noble metal chip has high spark consumption resistance by the outer alloy, and ignitability is hardly degraded even after the long-term use of the spark plug.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供对接地电极具有良好接合能力的贵金属芯片和优异的耐火花消耗性。解决方案：该贵金属芯片90由包含铂，作为主要成分的内部合金91与添加有铑，铱，镍，钨，钯，钌和锇中的至少一种的复合材料形成。在与轴线垂直的方向上添加铱，铂，镍，钨，钯，钌和锇中的至少一种的含有铱作为主要成分的外部合金92。由于内部合金对接地电极具有高接合能力并且与外部合金的接合被加强，所以即使电阻焊接到火花塞的接地电极并且在接合之后脱落也能够提供足够的接合强度被阻止由于贵金属芯片由于外部合金具有高的耐火花消耗性，并且即使在长期使用火花塞之后，点火性几乎不降低。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2005285464A Manufacturing method for spark plug 审中-公开
标题翻译：火花插头的制造方法
公开(公告)号：JP2005285464A
公开(公告)日：2005-10-13
申请号：JP2004095973
申请日：2004-03-29
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： YOSHIMOTO OSAMU , MATSUTANI WATARU
IPC分类号： H01T13/20 , H01T13/39 , H01T21/02
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method for a spark plug having superior abrasion resistance, by reducing occurrence of crackings of an electrode tip.
SOLUTION: Raw material powder 110 is molded by a press or the like to form a cylindrical compact 120, a binder is removed in a hydrogen atmosphere, and it is then finally sintered in an argon atmosphere to form a sintered body 125. Then, hot working is applied to the sintered body 125 by a hot forging process, a hot grooved roll process, and a hot swaging process to manufacture a rod-shaped material 131. The rod-shaped material 131 is then further extended by hot drawing using a wire drawing dice 130 to obtain a wire material 135. Electrode tips 30, 90 having prescribed shapes are then manufactured by cutting the wire material 135.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过减少电极尖端的裂纹的发生，提供具有优异的耐磨性的火花塞的制造方法。解决方案：原料粉末110通过压机等成型以形成圆柱形压块120，在氢气氛中除去粘合剂，然后最后在氩气氛中烧结以形成烧结体125。然后，通过热锻造工艺，热槽轧制工艺和热锻造工艺对烧结体125进行热加工以制造棒状材料131.然后通过热拉伸进一步延伸棒状材料131 使用拉丝骰子130来获得线材135.然后通过切割线材135制造具有规定形状的电极头30,90。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2005108821A Spark plug 有权
标题翻译： SPARK插头
公开(公告)号：JP2005108821A
公开(公告)日：2005-04-21
申请号：JP2004242053
申请日：2004-08-23
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： YOSHIMOTO OSAMU , MATSUTANI WATARU
IPC分类号： C22C5/04 , H01T13/20 , H01T13/39
摘要： PROBLEM TO BE SOLVED: To provide a park plug for preventing scattering in a horizontal direction, small in size and excellent in ignitionability, in a spark plug having an attaching thread of an outer diameter of ≤12 mm and using a noble metal chip for an ignition part.
SOLUTION: The plug comprises an insulator 2 having an axial hole in a axial line direction; a center electrode 3 disposed so that its own tip protrudes on the tip side of the insulator 2 and having an electrode mother material composed of the noble metal chip fixed to its own tip and a Ni alloy containing pure Ni or Ni of ≥85 wt%; a main body metal fitting 1 surrounding the periphery of the insulator 2; and a ground electrode 4 of which one end is bonded with the metal fitting 1 and the other end is faced with the chip to form a spark charging gap facing the chip. When a tip outer diameter of the fitting 1 is set at M, a tip inner diameter of the fitting 1 is set at D1, and an outer diameter of the electrode 3 on a virtual flat surface including the tip of the insulator 2 is set at D2, following expressions are satisfied: M≤12 mm, 0.5 mm≤D2
摘要翻译：要解决的问题：为了提供一种防止在具有外径≤12mm的安装螺纹的火花塞中使用贵金属的水平方向上的散射，尺寸小和可点燃性优异的停放塞用于点火部件的芯片。解决方案：插头包括在轴线方向上具有轴向孔的绝缘体2; 中心电极3设置成使其自身的尖端突出在绝缘体2的前端侧，并且具有由固定在其自身尖端上的贵金属芯片构成的电极母材和含有≥85重量％的纯Ni或Ni的Ni合金， ; 围绕绝缘体2的周边的主体金属配件1; 以及接地电极4，其一端与金属配件1接合，另一端面对芯片，形成面向芯片的火花充电间隙。当配件1的尖端外径设定为M时，配件1的前端内径设定为D1，将包含绝缘子2的前端的虚拟平面上的电极3的外径设定为 D2，满足以下表达式：M≤12mm，0.5mm≤D2<1.4mm，D1 /D≥3.5。版权所有（C）2005，JPO＆NCIPI

10. 发明专利

JP2004152682A Spark plug 有权
公开(公告)号：JP2004152682A
公开(公告)日：2004-05-27
申请号：JP2002318559
申请日：2002-10-31
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： MATSUTANI WATARU , YOSHIMOTO OSAMU , MATSUBARA YOSHIHIRO
IPC分类号： C22C5/04 , H01T13/20 , H01T13/32 , H01T13/39
摘要： PROBLEM TO BE SOLVED: To reduce scooped portions formed on the chip side of a spark plug.
SOLUTION: A noble metal chip 17 is welded to an earthed electrode 14 of a spark plug for an internal combustion engine. A protective film layer 19 of the same material (nickel alloy of Ni-0.5B-1W or nickel alloy of Ni-0.5B) is formed on the surface of a welded part 20 forming the welded part of the noble metal chip 17 and the earthed electrode 14, on the surface of the noble metal chip 17, and on the surface of the earthed electrode 14 by a method such as a plating method. The film thickness 30 of the protective film layer 19 is set at about 10 μm. After forming the protective film layer 19, heat treatment is applied to the whole of the earthed electrode 14.
COPYRIGHT: (C)2004,JPO

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