公开(公告)号：US07382084B2

公开(公告)日：2008-06-03

申请号：US10514786

申请日：2004-03-22

申请人： Osamu Yoshimoto ,  Wataru Matsutani ,  Yoshihiro Matsubara ,  Kenji Nunome

发明人： Osamu Yoshimoto ,  Wataru Matsutani ,  Yoshihiro Matsubara ,  Kenji Nunome

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。

公开(公告)号：US07131191B2

公开(公告)日：2006-11-07

申请号：US10823662

申请日：2004-04-14

申请人： Wataru Matsutani ,  Osamu Yoshimoto ,  Yoshihiro Matsubara

发明人： Wataru Matsutani ,  Osamu Yoshimoto ,  Yoshihiro Matsubara

IPC分类号： H01R43/16 ,  B23P25/00 ,  H01T21/02 ,  B21C21/00 ,  B23K26/00

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。

公开(公告)号：US20060061250A1

公开(公告)日：2006-03-23

申请号：US10514786

申请日：2004-03-22

申请人： Osamu Yoshimoto ,  Wataru Matsutani ,  Yoshihiro Matsubara ,  Kenji Nunome

发明人： Osamu Yoshimoto ,  Wataru Matsutani ,  Yoshihiro Matsubara ,  Kenji Nunome

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。

公开(公告)号：US20050077807A1

公开(公告)日：2005-04-14

申请号：US10948465

申请日：2004-09-24

申请人： Akira Suzuki ,  Wataru Matsutani

发明人： Akira Suzuki ,  Wataru Matsutani

IPC分类号： H01T13/39 ,  H01T21/02 ,  H01T13/20

CPC分类号： H01T21/02 ,  H01T13/39

摘要： [Problem]A production method is provided that can improve the reliability of a molten bond of a spark plug in which a small-diameter noble metal tip is laser welded while protruding from a side face of a ground electrode. [Means for Resolution]A discharge portion 52 which forms a discharge gap 6 between the portion and a tip end face 51 of a center electrode 3 is configured by: forming a taper 4b in a ground electrode 4, the width of the taper being smaller as advancing toward the tip end so as to attain a diameter of 0.8 mm or less and a height of 0.5 mm or more; and then bonding the portion by laser welding to a side face 4a of the ground electrode 4.

摘要翻译： [问题]提供一种制造方法，其可以提高在从接地电极的侧面突出的状态下激光焊接小直径贵金属电极头的火花塞的熔融接合的可靠性。 [分辨装置]在中心电极3的该部分与前端面51之间形成放电间隙6的放电部分52通过以下方式构成：在接地电极4中形成锥形4b，锥形的宽度较小 朝向前端前进，以达到0.8mm以下的直径，以及0.5mm以上的高度; 然后通过激光焊接将该部分接合到接地电极4的侧面4a。

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

IPC分类号： H01T13/39 ,  H01T13/20

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。

公开(公告)号：US06304022B1

公开(公告)日：2001-10-16

申请号：US09231556

申请日：1999-01-14

申请人： Wataru Matsutani

发明人： Wataru Matsutani

IPC分类号： H01T1320

CPC分类号： H01T13/39

摘要： A spark plug includes a center electrode, an insulator provided outside the center electrode, a metallic shell provided outside the insulator, a ground electrode disposed to face the center electrode, and a spark discharge portion fixed on at least one of the center electrode and the ground electrode for defining a spark discharge gap. The spark discharge portion is formed from a noble metal alloy containing a main component element selected from among Ir, Pt, and Rh, and at least one additional component element differing from the main component element. In the noble metal alloy, the additional component element is distributed such that stripes of high concentration regions and low concentration regions extend in a direction perpendicular to the direction of voltage application.

摘要翻译： 火花塞包括中心电极，设置在中心电极外侧的绝缘体，设置在绝缘体外部的金属壳，设置成面对中心电极的接地电极和固定在中心电极和中心电极中的至少一个上的火花放电部 用于限定火花放电间隙的接地电极。 火花放电部由含有选自Ir，Pt和Rh中的主要成分元素的贵金属合金和与主要成分元素不同的至少一种附加成分元素形成。 在贵金属合金中，附加成分元素分布成使得高浓度区域和低浓度区域的条纹沿垂直于电压施加方向的方向延伸。

公开(公告)号：US5998913A

公开(公告)日：1999-12-07

申请号：US40851

申请日：1998-03-18

申请人： Wataru Matsutani

发明人： Wataru Matsutani

IPC分类号： C22C5/04 ,  H01T13/39

CPC分类号： H01T13/39

摘要： A spark plug includes a center electrode, an insulator provided outside the center electrode, a metallic shell provided outside the insulator, a ground electrode disposed opposingly to the center electrode, and a spark discharge portion fixed on at least one of the center electrode and the ground electrode for defining a spark discharge gap. The spark discharge portion is formed from an alloy containing Ir as a main component, Rh in an amount of 0.1 wt. % to 35 wt. %, and at least one of Ru and Re in an amount of 0.1 wt. % to 17 wt. %.

摘要翻译： 火花塞包括中心电极，设置在中心电极外侧的绝缘体，设置在绝缘体外部的金属壳，与中心电极相对设置的接地电极，以及固定在中心电极和 用于限定火花放电间隙的接地电极。 火花放电部由以Ir为主要成分的合金形成，Rh为0.1重量％ ％〜35重量％ ％，Ru和Re中的至少一种为0.1重量％。 ％至17重量％ ％。

公开(公告)号：US5866973A

公开(公告)日：1999-02-02

申请号：US915063

申请日：1997-08-20

申请人： Junichi Kagawa ,  Wataru Matsutani

发明人： Junichi Kagawa ,  Wataru Matsutani

IPC分类号： H01T13/39 ,  H01T13/20 ,  H01T13/22 ,  H01T13/34 ,  H01T13/36

CPC分类号： H01T13/39

摘要： A spark plug is provided having a center electrode disposed in a metallic shell through an insulator so that the front end of the center electrode forms a spark gap with an outer electrode. A platinum tip is secured to the outer electrode positioned to oppose the front end of the center electrode. The outer electrode is provided with a heat-conductive core metal cladded with a matrix metal which is made of a nickel-based alloy containing 10-20 wt. % chromium. The platinum tip is welded to the outer electrode to form a welded portion between the platinum tip and the outer electrode and the platinum tip is positioned to terminate slightly short of the core metal so that the distance between a circumferential edge of the welded portion and a front end of the core metal is in the range 0.0 mm-2.0 mm measured lengthwise along direction the outer electrode.

摘要翻译： 提供火花塞，其具有通过绝缘体设置在金属壳体中的中心电极，使得中心电极的前端与外部电极形成火花隙。 铂尖被固定到与中心电极的前端相对定位的外电极。 外部电极设置有由基体金属包覆的导热芯金属，该基体金属由含有10-20重量％的镍基合金制成。 ％铬。 将铂尖焊接到外电极，以形成铂尖端和外电极之间的焊接部分，并且铂尖端被定位成稍微短于芯金属，使得焊接部分的周边边缘与 核心金属的前端在沿着外部电极的方向上沿长度方向测量的0.0mm-2.0mm的范围内。

公开(公告)号：US5793793A

公开(公告)日：1998-08-11

申请号：US883145

申请日：1997-06-27

申请人： Wataru Matsutani ,  Junichi Kagawa

发明人： Wataru Matsutani ,  Junichi Kagawa

IPC分类号： H01T13/39 ,  H01T13/20

CPC分类号： H01T13/39

摘要： Spark plug has a central electrode, an insulator provided exterior to the central electrode, main metallic shell provided exterior to the insulator in such a way that the central electrode protrudes from one end, and a ground electrode coupled at one end to the main metallic shell and which has the other end disposed to face the central electrode 3, with a chip being secured to either the central electrode or the ground electrode or both to form spark discharge gap g. The chip is made of a metal based on Ir which contains Rh in an amount ranging from 3 to 50 wt % (50 wt % being not inclusive).

摘要翻译： 火花塞具有中心电极，设置在中心电极外部的绝缘体，主金属外壳设置在绝缘体的外部，使得中心电极从一端突出，并且接地电极在一端连接到主金属外壳 并且其另一端设置为面对中心电极3，其中芯片固定到中心电极或接地电极或两者以形成火花放电间隙g。 该芯片由含有3〜50重量％（不包括50重量％）量的Rh的基于Ir的金属制成。

公开(公告)号：US5736809A

公开(公告)日：1998-04-07

申请号：US676840

申请日：1996-07-08

申请人： Wataru Matsutani ,  Kozo Amano

发明人： Wataru Matsutani ,  Kozo Amano

IPC分类号： H01T13/20 ,  H01T13/39 ,  H01T13/46 ,  H01T21/02

CPC分类号： H01T13/39 ,  H01T21/02

摘要： In a spark plug having a noble metal layer disposed on a firing end of an electrode, the noble metal layer being laser welded to the firing end of the electrode, and subsequently heat treated to increase a crystallized granulation particle size of the noble metal layer.

摘要翻译： 在具有设置在电极的烧成端上的贵金属层的火花塞中，将贵金属层激光焊接到电极的烧成端，然后进行热处理，以提高贵金属层的结晶造粒粒径。