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公开(公告)号：US20060043855A1
公开(公告)日：2006-03-02
申请号：US10519075
申请日：2004-03-22
IPC分类号： H01T13/02
CPC分类号： H01T13/39 , B22F2998/10 , C22C1/0466 , B22F3/02 , B22F3/15
摘要： An object of the invention is to provide a higher-durability spark plug provided with a center electrode and a side electrode to form a spark discharge gap between the center electrode and the side electrode, at least one of the center electrode and the side electrode including a precious metal member facing the spark discharge gap, in which a sweating phenomenon of the precious metal member can be suppressed while spark abrasion, oxidation abrasion and abnormal abrasion of the precious metal member can be suppressed. In the invention, the spark plug (100) comprises a center electrode (3), and a side electrode (4) located on one side of the center electrode (3) so that a spark discharge gap (G) is formed between the center electrode (3) and the side electrode (4). The center electrode (3) and the side electrode (4) include first and second precious metal tips (33) and (43) respectively. The first and second precious metal tips (33) and (43) face the spark discharge gap (G) so that the spark discharge gap (G) is formed. The precious metal tips (33) and so on contain Ir as a main component, 0.3 mass % to 43 mass % of Rh, 5.2 mass % to 41 mass % of Ru, and 0.4 mass % to 19 mass % of Ni.
摘要翻译： 本发明的目的是提供一种具有中心电极和侧电极的高耐久性火花塞，以在中心电极和侧电极之间形成火花放电间隙，至少一个中心电极和侧电极包括 面对火花放电间隙的贵金属构件可以抑制贵金属构件的出汗现象，同时可以抑制贵金属构件的火花磨损，氧化磨损和异常磨损。 在本发明中，火花塞（100）包括中心电极（3）和位于中心电极（3）一侧的侧电极（4），使得在中心电极（3）之间形成火花放电间隙（G） 电极（3）和侧电极（4）。 中心电极（3）和侧电极（4）分别包括第一和第二贵金属尖端（33）和（43）。 第一和第二贵金属端头（33）和（43）面对火花放电间隙（G），从而形成火花放电间隙（G）。 贵金属制头（33）等含有Ir为主成分，Rh为0.3质量％〜43质量％，Ru为5.2质量％〜41质量％，Ni为0.4质量％〜19质量％。
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公开(公告)号：US20050200255A1
公开(公告)日：2005-09-15
申请号：US11071202
申请日：2005-03-04
申请人： Osamu Yoshimoto , Wataru Matsutani
发明人： Osamu Yoshimoto , Wataru Matsutani
摘要： A noble-metal chip 30, 90 joined to at least either a center electrode or a ground electrode, the center and ground electrodes forming a spark discharge gap, and having a circumferential edge of its facing end surface 31, 91 removed so as to form an edge-removed portion 32, 92. The edge-removal length is 0.01 mm or more and a ratio of the edge-removal length to a radius of the noble-metal chip is less than 0.3. The noble-metal chip is made of iridium or an alloy that contains iridium in an amount of 70% by weight or more, and crystal grains constituting the noble-metal chip 30, 90 extends in the axial direction. Also disclosed is a method for manufacturing the spark plug.
摘要翻译： 接合到中心电极或接地电极中的至少一个的贵金属芯片30,90，形成火花放电间隙的中心电极和接地电极，并且具有其相对的端面31,91的周缘以便形成 边缘去除部分32,92。 边缘去除长度为0.01mm以上，边缘去除长度与贵金属芯片的半径的比例小于0.3。 贵金属片由铱或含有70重量％以上的铱的合金构成，构成贵金属片30,90的晶粒沿轴向延伸。 还公开了一种用于制造火花塞的方法。
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公开(公告)号：US07859177B2
公开(公告)日：2010-12-28
申请号：US11600318
申请日：2006-11-16
申请人： Osamu Yoshimoto , Wataru Matsutani
发明人： Osamu Yoshimoto , Wataru Matsutani
摘要： A spark plug for an internal-combustion engine is provided wherein the central and ground electrodes exhibit a long service life and wherein the fatigue strength at high temperatures is improved. The ground electrode is made from an alloy comprised of nickel (Ni) as a primary component, chromium: 20-30% by weight, iron: 7-20% by weight, aluminum: 1-3% by weight, titanium: 0.05-0.5% by weight, manganese: not higher than 0.1% by weight, silicon: not higher than 0.1% by weight, and carbon: not higher than 0.5% by weight. The alloy further includes at least one specific element selected from zirconium, yttrium, neodymium, cerium, lanthanum and samarium. Further, the total content of the specific element group is 5% or more of the aluminum content and is not higher than 1% by weight.
摘要翻译： 提供一种用于内燃机的火花塞，其中中心和接地电极具有较长的使用寿命，并且其中提高了高温下的疲劳强度。 接地电极由以镍（Ni）为主要成分的合金制成，铬：20-30重量％，铁：7〜20重量％，铝：1-3重量％，钛：0.05〜 0.5重量％，锰：不高于0.1重量％，硅：不高于0.1重量％，碳：不高于0.5重量％。 合金还包括选自锆，钇，钕，铈，镧和钐中的至少一种特定元素。 此外，特定元素基团的总含量为铝含量的5％以上且不高于1重量％。
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公开(公告)号：US20050057135A1
公开(公告)日：2005-03-17
申请号：US10937432
申请日：2004-09-10
申请人： Osamu Yoshimoto , Wataru Matsutani
发明人： Osamu Yoshimoto , Wataru Matsutani
CPC分类号： H01T13/39
摘要： A spark plug including an insulator having an axial hole in an axial direction; and a center electrode disposed in a tip end side of the axial hole of the insulator so as to project a tip end of the center electrode from the tip end side of the insulator. The center electrode includes an electrode base member made of pure Ni or an Ni alloy containing 85 wt % or more of Ni; and a noble metal chip fixed to a tip end of the electrode base. The spark plug further includes a metal shell surrounding the insulator; and a ground electrode in which one end is joined to the metal shell, and another end portion opposes the noble metal chip to form a spark discharge gap between the ground electrode and noble metal chip, wherein M, D1, and D2 as defined herein satisfy M≦10.1 mm, 0.5 mm≦D2
摘要翻译： 一种火花塞，其包括在轴向上具有轴向孔的绝缘体; 以及设置在所述绝缘体的轴向孔的前端侧的中心电极，以使所述中心电极的前端从所述绝缘体的前端侧突出。 中心电极包括由纯Ni或含有85重量％以上的Ni的Ni合金制成的电极基体; 以及固定在电极基体的前端的贵金属芯片。 火花塞还包括围绕绝缘体的金属壳; 以及接地电极，其一端接合到金属壳体，另一端部与贵金属芯片相对，以在接地电极和贵金属芯片之间形成火花放电间隙，其中如本文所定义的M，D1和D2满足 M <= 10.1mm，0.5mm <= D2 <1.4MM，AND D1 / D2> = 3.5。
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5.发明授权公开(公告)号：US07550906B2
公开(公告)日：2009-06-23
申请号：US11071202
申请日：2005-03-04
申请人： Osamu Yoshimoto , Wataru Matsutani
发明人： Osamu Yoshimoto , Wataru Matsutani
摘要： A noble-metal chip (30, 90) joined to at least either a center electrode or a ground electrode, the center and ground electrodes forming a spark discharge gap, and having a circumferential edge of its facing end surface (31, 91) removed so as to form an edge-removed portion (32, 92). The edge-removal length is 0.01 mm or more and a ratio of the edge-removal length to a radius of the noble-metal chip is less than 0.3. The noble-metal chip is made of iridium or an alloy that contains iridium man amount of 70% by weight or more, and crystal grains constituting the noble-metal chip (30, 90) extends in the axial direction. Also disclosed is a method for manufacturing the spark plug.
摘要翻译： 已经连接到中心电极或接地电极中的至少一个的贵金属芯片（30,90），形成火花放电间隙的中心接地电极和接地电极，并且具有其相对端面（31,91）的周向边缘被去除 以形成边缘去除部分（32,92）。 边缘去除长度为0.01mm以上，边缘去除长度与贵金属芯片的半径的比例小于0.3。 贵金属片由铱或含有铱人数为70重量％以上的合金构成，构成贵金属片（30,90）的晶粒沿轴向延伸。 还公开了一种用于制造火花塞的方法。
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6.再颁专利Method for manufacturing noble metal electric discharge chips for spark plugs 有权用于制造用于火花塞的贵金属放电芯片的方法公开(公告)号：USRE41944E1
公开(公告)日：2010-11-23
申请号：US12257543
申请日：2008-10-24
CPC分类号： B21F45/00 , B21C37/045 , H01T13/39 , H01T21/02 , Y10S72/70 , Y10T29/49117 , Y10T29/49204 , Y10T29/49989 , Y10T29/49991 , Y10T29/5195
摘要： In a wire drawing process for forming a wire rod containing iridium as a main component and which further contains nickel and at least one of platinum, rhodium and ruthenium, and having a cross-sectional area of not smaller than 0.05 mm2 and not larger than 1.2 mm2. The worked material is continuously heated red hot and/or white hot in a heating region 103 extending up to 60 mm from the work inserting surface 101a of a die 101 in a direction opposite that in which the work 102 moves, the work being heated to a temperature of 1000 to 1150° C. at a temperature measuring position 105 which is removed from the work inserting surface 101a by 20 mm. Furthermore, the temperature in the region 106 extending from the temperature measuring position 105 to the work inserting surface 101a is set to not lower than 1000° C., and the wire drawing rate is set to 300 to 1600 mm/min.
摘要翻译： 在用于形成含有铱作为主要成分并且还包含镍和至少一种铂，铑和钌的线材并且具有不小于0.05mm 2且不大于1.2的横截面积的线材的拉丝工艺中 mm2。 被加工材料在与工件102移动的方向相反的方向从模具101的工件插入面101a延伸达60mm的加热区域103中连续加热红热和/或白热，加热到 在从工件插入表面101a移除20mm的温度测量位置105处的温度为1000至1150℃。 此外，从温度测量位置105延伸到工件插入表面101a的区域106中的温度设定为不低于1000℃，并且拉丝速率设定为300至1600mm / min。
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公开(公告)号：US07382084B2
公开(公告)日：2008-06-03
申请号：US10514786
申请日：2004-03-22
IPC分类号： H01T13/20
CPC分类号： C22C5/04 , C22C1/0466 , C22C32/0021 , H01T13/39
摘要： An object of the invention is to provide a spark plug having a discharge portion made of a precious metal tip, in which peeling of the precious metal tip from a surface of the discharge portion can be suppressed while spark abrasion, oxidation abrasion and abnormal abrasion of the discharge portion can be suppressed.
摘要翻译： 本发明的目的是提供一种火花塞，其具有由贵金属端头构成的排出部分，其中可以抑制贵金属尖端从排出部分的表面的剥离，同时具有火花磨损，氧化磨损和异常磨损 可以抑制排出部。
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8.发明授权Method for manufacturing noble metal electric discharge chips for spark plugs 有权用于制造用于火花塞的贵金属放电芯片的方法公开(公告)号：US07131191B2
公开(公告)日：2006-11-07
申请号：US10823662
申请日：2004-04-14
CPC分类号： B21F45/00 , B21C37/045 , H01T13/39 , H01T21/02 , Y10S72/70 , Y10T29/49117 , Y10T29/49204 , Y10T29/49989 , Y10T29/49991 , Y10T29/5195
摘要： In a wire drawing process for forming a wire rod containing iridium as a main component and which further contains nickel and at least one of platinum, rhodium and ruthenium, and having a cross-sectional area of not smaller than 0.05 mm2 and not larger than 1.2 mm2. The worked material is continuously heated red hot and/or white hot in a heating region 103 extending up to 60 mm from the work inserting surface 101a of a die 101 in a direction opposite that in which the work 102 moves, the work being heated to a temperature of 1000 to 1150° C. at a temperature measuring position 105 which is removed from the work inserting surface 101a by 20 mm. Furthermore, the temperature in the region 106 extending from the temperature measuring position 105 to the work inserting surface 101a is set to not lower than 1000° C., and the wire drawing rate is set to 300 to 1600 mm/min.
摘要翻译： 在用于形成含有铱作为主要成分并且还包含镍和至少一种铂，铑和钌的线材并且具有不小于0.05mm 2的截面积的线材的拉丝工艺中， / SUP>且不大于1.2mm 2。 加工材料在与工件102移动的方向相反的方向上从模具101的工件插入表面101a延伸到加热区域103的加热区域103中持续加热和/或白热，加热的工件 在从工件插入表面101a移除20mm的温度测量位置105处为1000至1150℃的温度。 此外，将从温度测量位置105延伸到工件插入表面101a的区域106中的温度设定为不低于1000℃，并且拉丝速率设定为300至1600mm / min。
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公开(公告)号：US20060061250A1
公开(公告)日：2006-03-23
申请号：US10514786
申请日：2004-03-22
IPC分类号： H01T13/20
CPC分类号： C22C5/04 , C22C1/0466 , C22C32/0021 , H01T13/39
摘要： An object of the invention is to provide a spark plug having a discharge portion made of a precious metal tip, in which peeling of the precious metal tip from a surface of the discharge portion can be suppressed while spark abrasion, oxidation abrasion and abnormal abrasion of the discharge portion can be suppressed. The invention comprises a center electrode (3), and a ground electrode (4) disposed so that its side surface is opposite to a leading end portion of the center electrode (3), characterized in that: a center electrode-side precious metal tip (31′) or a ground electrode-side precious metal tip (32′) is welded to at least one of the center electrode (3) and the ground electrode (4) to thereby form a center electrode-side discharge portion (31) having a center electrode-side discharge-surface (31t) or a ground electrode-side discharge portion (32) having a ground electrode-side discharge surface (32t) in a position opposite to a spark discharge gap g; and the center electrode-side precious metal tip (31′) or the ground electrode-side precious metal tip (32′) contains Ir as a main component, Rh, and Ni and further contains at least one of Pt and Pd.
摘要翻译： 本发明的目的是提供一种火花塞，其具有由贵金属端头构成的排出部分，其中可以抑制贵金属尖端从排出部分的表面的剥离，同时具有火花磨损，氧化磨损和异常磨损 可以抑制排出部。
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公开(公告)号：US06864622B2
公开(公告)日：2005-03-08
申请号：US10297201
申请日：2002-03-27
申请人： Wataru Matsutani , Masayuki Segawa , Satoko Ito , Osamu Yoshimoto
发明人： Wataru Matsutani , Masayuki Segawa , Satoko Ito , Osamu Yoshimoto
CPC分类号： H01T13/39
摘要： The object of the present invention is to provide a spark plug having a discharge portion formed of a noble-metal chip increased in the Ir content while reducing the content of expensive Rh, which can be restrained from generation of unusual wear in the form of eroding the circumferential side surface of the noble-metal chip and exhibits excellent wear resistance.In the present invention, the discharge portion (31) in the center electrode (3) side is formed of a noble-metal chip (31′) comprising an Ir-based alloy and the noble-metal chip (31′) contains 90% by weight or more of Ir as the main component and further contains 0.5% by weight or more of Rh and from 0.5 to 8% by weight of Ni, whereby the noble-metal chip (31′) [discharge portion (31)] can be ensured with good wear resistance, the generation of unusual wear which readily occurs on decreasing the Rh content can be prevented by the addition of Ni and in turn, a spark plug having high performance can be fabricated at a low cost.
摘要翻译： 本发明的目的是提供一种火花塞，其具有由稀土金属芯片形成的放电部分，其中Ir含量增加，同时降低昂贵的Rh的含量，其可以以侵蚀的形式抑制异常磨损的产生 贵金属芯片的周向侧面，耐磨性优异。在本发明中，中心电极（3）侧的排出部（31）由包含Ir的贵金属芯片（31'）形成 的贵金属片（31'）含有作为主成分的Ir占90重量％以上，还含有0.5重量％以上的Rh和0.5〜8重量％的Ni， 可以确保具有良好的耐磨性的贵金属芯片（31'）[排出部分（31）]，可以通过添加Ni并且随后的火花来防止在减少Rh含量时容易发生的异常磨损的产生 可以以低成本制造具有高性能的插头。
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