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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：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
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。
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公开(公告)号：US06688932B2
公开(公告)日：2004-02-10
申请号：US10128437
申请日：2002-04-24
IPC分类号： H01T2102
CPC分类号： H01T21/02 , C23C2222/10 , H01T13/20
摘要： A method for manufacturing a spark plug, the spark plug includes: a cylindrical metal shell having a portion to be caulked and a tool-engaging portion that is to be attached on an engine; an insulator that is inserted into the metal shell and extends axially; and a caulking metallic mold, the method including caulking the portion to be caulked to be fixed to an outer circumferential face of the insulator with the caulking metallic mold, where in the caulking metallic mold includes a face, the face including a hard carbon film that includes an amorphous carbon phase, and the face is contact with or sliding to the portion to be caulked.
摘要翻译： 一种用于制造火花塞的方法，所述火花塞包括：具有要铆接的部分的圆筒形金属壳体和要附接在发动机上的工具接合部分; 绝缘体，其被插入到金属壳体中并且轴向延伸; 以及铆接金属模具，该方法包括用铆接金属模将铆接部分铆接固定在绝缘体的外周面上，其中在铆接金属模具中包括一面，该表面包括硬碳膜， 包括无定形碳相，并且所述面与要被铆接的部分接触或滑动。
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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。
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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
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％ ％。
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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
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。
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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
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。
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58.发明授权Method of making a spark plug including laser welding a noble metal layer to a firing end of electrode 失效制造火花塞的方法包括将贵金属层激光焊接到电极的烧制端
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
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。
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59.发明授权Laser welding device, a method of checking welding condition and a method of making a center electrode for a spark plug 失效激光焊接装置，检查焊接条件的方法以及制作火花塞的中心电极的方法
公开(公告)号：US5607605A
公开(公告)日：1997-03-04
申请号：US499217
申请日：1995-07-07
申请人： Mamoru Musasa , Wataru Matsutani
发明人： Mamoru Musasa , Wataru Matsutani
CPC分类号： B23K26/032
摘要： In a laser welding member, a photographing device is provided to photograph plasma caused by exposing laser beams to an object. An image processing member is provided to measure at least one of an area and height of a plasma image photographed by the photographing member. A distinction member is provided to compare a value measured by the image processing member with an allowable value so as to asses the laser welding condition.
摘要翻译： 在激光焊接部件中，设置拍摄装置以将激光束照射到物体上来照射等离子体。 提供一种图像处理部件，用于测量由拍摄部件拍摄的等离子体图像的面积和高度中的至少一个。 提供了一种区别部件，用于将由图像处理部件测量的值与允许值进行比较，以便评估激光焊接条件。
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公开(公告)号：US5395273A
公开(公告)日：1995-03-07
申请号：US118623
申请日：1993-09-10
申请人： Wataru Matsutani
发明人： Wataru Matsutani
CPC分类号： H01T21/02
摘要： In a method of making a spark plug electrode, an electrode blank is prepared to have a firing portion at one end of the electrode blank. A recess is provided at the firing portion of the electrode blank. A noble metal material is placed in the recess. Laser beams are applied on the noble metal material in the recess to melt 70%.about.100% by weight of the noble metal material to form a noble metal tip. A component of the electrode blank is formed from a clad metal wherein the clad metal is thermally fused to the noble metal tip to form a fused portion, such that the clad metal comprises 0.5%.about.80% of the total weight of the fused portion.
摘要翻译： 在制造火花塞电极的方法中，制备电极坯以在电极坯的一端具有烧制部分。 在电极坯的点火部分设有凹部。 将贵金属材料放置在凹槽中。 将激光束施加在凹部中的贵金属材料上，以熔化贵重金属材料的重量百分比70％的差异，形成贵金属尖端。 电极坯料的一个部件由复合金属形成，其中复合金属被热熔合到贵金属电极头以形成熔融部分，使得复合金属包含熔融部分总重量的0.5％的差异。
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