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11. 发明专利

JP2007008428A Magnesium alloy extruded section 审中-公开
标题翻译：镁合金挤压部分
公开(公告)号：JP2007008428A
公开(公告)日：2007-01-18
申请号：JP2005195465
申请日：2005-07-04
申请人： Nissan Motor Co Ltd , Sankyo Tateyama Aluminium Inc , 三協立山アルミ株式会社 , 日産自動車株式会社
发明人： MURAI TSUTOMU , TAKAHASHI YASUSHI , MINAMII HIDEKI , ITAKURA KOJI
IPC分类号： B60R19/04 , B21C23/00 , B60R19/18
摘要： PROBLEM TO BE SOLVED: To provide a magnesium alloy extruded section having excellent energy absorption characteristic.
SOLUTION: The magnesium alloy extruded section comprises a top wall of the thickness t1 and a bottom wall of the thickness t2 which are parallel to each other, a pair of longitudinal walls of the thickness t3, t4 which connect both ends of the top wall and the bottom wall to each other and are orthogonal to the top wall and the bottom wall, and an intermediate transverse wall of the thickness t5 which is arranged between the top wall and the bottom wall, connect the longitudinal walls to each other, and is parallel to the top wall and the bottom wall. The values Z calculated by the formulae Γ
1 = t1 × cσy
90 /W
2 , Γ
2 = t2 × cσy
90 /W
2 , Γ
3 = t3 × cσy
0 /H
2 × √2, Γ
4 = t4 × tσy
0 /H
2 × √2, Γ
5 = t5 × cσy
90 /W
2 /√2, and the formulae (1), (2) and (3) are smaller than the value Z
0 calculated assuming that the thickness of all the walls is equal with 10 added thereto, where cσy
0 is the compressive proof stress in the extruding direction, tσy
0 is the tensile proof stress in the extruding direction, cσy
90 is the compressive proof stress in the direction orthogonal to the extruding direction, W is the transverse width, and H is the height.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供具有优异能量吸收特性的镁合金挤压部分。解决方案：镁合金挤压部分包括厚度为t1的顶壁和厚度为t2的彼此平行的底壁，厚度为t3，t4的一对纵向壁，其连接两端的顶壁和底壁彼此垂直并且与顶壁和底壁垂直，并且布置在顶壁和底壁之间的厚度t5的中间横向壁将纵向壁彼此连接，并且平行于顶壁和底壁。通过公式Γ 1计算出的值Z = t1×cσyΓΓΓΓΓΓ= t2 t2 t2 ΓΓΓΓ××ΓΓΓΓ，，，/ / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / SP>×√2，Γ 4 = t4×tσy 0 / H 2 ×√2，Γ 5 = t5×cσy 90 / W 2 /√2，式（1），（2）和（3）小于值Z 假设所有壁的厚度等于加入其中的10，其中cσy 0 是挤出方向上的抗压应力，tσy 0 是挤出方向的拉伸应力cσy 90 是与挤出方向正交的方向的抗压力应力，W是横向宽度，H是高度。版权所有（C）2007，JPO＆INPIT

12. 发明专利

JP2005082865A Non-heat treated aluminum alloy for die-casting, die-cast product obtained by using the alloy, and method for producing the product 审中-公开
标题翻译：用于铸造的非热处理铝合金，使用合金获得的铸造产品以及生产该产品的方法
公开(公告)号：JP2005082865A
公开(公告)日：2005-03-31
申请号：JP2003317446
申请日：2003-09-09
申请人： Nippon Light Metal Co Ltd , Nissan Motor Co Ltd , 日本軽金属株式会社 , 日産自動車株式会社
发明人： AOKI SHOJI , ITAKURA KOJI , TSUSHIMA KENJI , KUDO KATSUHIRO , USUKI HIDEKI , SHIODA MASAHIKO , SUMI SHINICHIRO
IPC分类号： B22D21/04 , B22D17/00 , B22D17/14 , C22C21/02
摘要： PROBLEM TO BE SOLVED: To provide a non-heat treated aluminum alloy for die-casting capable of obtaining stably high strength and high elongation without being subjected to a solution treatment after casting, and further having excellent castability particularly in the point that casting cracks are hard to occur.
SOLUTION: The non-heat treated aluminum alloy for die-casting has a composition in which the mass ratio between Mg and Si is 0.1 to 0.5, and comprising, by mass, 3.5 to 5.0% Si, 0.35 to 2.5% Mg, 0.3 to 1.5% Mn, ≤0.15% Fe and ≤0.20% Ti, and the balance aluminum with inevitable impurities.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于压铸的非热处理铝合金，其能够获得稳定的高强度和高伸长率，而不经过浇铸后的固溶处理，并且还具有优异的浇铸性，特别是在铸造裂纹很难发生。解决方案：用于压铸的非热处理铝合金具有其中Mg和Si之间的质量比为0.1至0.5的组成，并且包含质量为3.5至5.0％的Si，0.35至2.5％的Mg ，0.3〜1.5％Mn，≤0.15％Fe和≤0.20％Ti，余量为铝与不可避免的杂质。版权所有（C）2005，JPO＆NCIPI

13. 发明专利

JP2004344955A Cast structure having hollow member, and method for manufacturing the same 审中-公开
公开(公告)号：JP2004344955A
公开(公告)日：2004-12-09
申请号：JP2003146747
申请日：2003-05-23
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： ITAKURA KOJI
IPC分类号： B62D25/20 , B22D19/00 , B62D21/00
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive cast structure of excellent joining strength.
SOLUTION: The cast structure has hollow members 20, 30 and 40 to be cast-in joined with cast members 50 and 60, and each hollow member has a suppression means 36 to suppress flow of molten metal in a hollow space.
COPYRIGHT: (C)2005,JPO&NCIPI

14. 发明专利

JP2004307932A Steel for bolt having excellent delayed fracture resistance, and method of producing bolt 有权
$Steel for bolt having excellent delayed fracture resistance, and method of producing bolt$
公开(公告)号：JP2004307932A
公开(公告)日：2004-11-04
申请号：JP2003103068
申请日：2003-04-07
申请人： Daido Steel Co Ltd , Nissan Motor Co Ltd , 大同特殊鋼株式会社 , 日産自動車株式会社
发明人： KIMURA TOSHIMITSU , KIMURA KAZUYOSHI , AKIYAMA KOICHI , ITAKURA KOJI
IPC分类号： C21D8/06 , C21D9/00 , C22C38/00 , C22C38/54
摘要： PROBLEM TO BE SOLVED: To provide a steel for a bolt low in cost and capable of obtaining the bolt excellent in delayed fracture resistance even in the case that a bonderized coating film is applied, thereafter a wire drawing and a bolt forming are performed.
SOLUTION: The steel for a bolt has a chemical composition containing, by weight, 0.22 to 0.32% C, ≤0.20% Si, 0.60 to 1.20% Mn, ≤0.015% P, ≤0.005% S, 0.07 to 0.25% Cu, 0.03 to 0.20% Ni, 0.10 to 0.40% Cu+Ni, 0.05 to 0.45% Cr, 0.01 to 0.10% Ti, 0.01 to 0.06% Nb, 0.002 to 0.010% N and 0.0005 to 0.0030% B, and the balance Fe with inevitable impurities.
COPYRIGHT: (C)2005,JPO&NCIPI

15. 发明专利

JP2004009197A STRENGTHENING METHOD FOR WELDED PART MADE OF LIGHT METAL AND WELDED PART MADE OF LIGHT METAL 审中-公开
公开(公告)号：JP2004009197A
公开(公告)日：2004-01-15
申请号：JP2002165315
申请日：2002-06-06
申请人： NISSAN MOTOR
发明人： AOKI SHOJI , ITAKURA KOJI , KAMATA YASUSHI , USUKI HIDEKI
IPC分类号： B24C1/10 , B24C11/00
摘要： PROBLEM TO BE SOLVED: To enhance fatigue strength of a welded part to fatigue strength or higher of a mother material by removing a reduction factor of the fatigue strength of the welded part. SOLUTION: In the method, the welded part made of a light metal and formed using a filler metal is strengthened. A shot peening for projecting a ceramic bead 1 onto a surface of the welded part W is carried out at a projection pressure and a projection time satisfying a condition of 37.802×P -0.1771 ≤t≤90 and 0 COPYRIGHT: (C)2004,JPO

16. 发明专利

JPH10168540A PRODUCTION OF NON-HEAT TREATED STEEL FOR CONNECTING ROD AND CONNECTING ROD 失效
公开(公告)号：JPH10168540A
公开(公告)日：1998-06-23
申请号：JP33127396
申请日：1996-12-11
申请人： DAIDO STEEL CO LTD , NISSAN MOTOR
发明人： INOUE KOICHIRO , NAKAMURA SADAYUKI , YAMAGUCHI TAKUO , ITAKURA KOJI , USUKI HIDEKI
IPC分类号： F16C7/00 , C22C38/00 , C22C38/24 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To recover the proportional limit (proof stress) and fatigue strength, deteriorated by cold coining after hot forging, by means of artificial aging and natural aging under a service environment and to provide a connecting rod having proportional limit (proof stress) and fatigue strength both higher than those before coining. SOLUTION: A non-heat treated steel, having a composition consisting of 0.20-0.50% C, 0.05-1.00% Si, 0.10-1.50% Mn, 0.10-1.00% Cr, 0.10-0..50% V, 0.010-0.025% N, further one or >=2 kinds among

17. 发明专利

JP2007014978A Method and device for manufacturing formed component 审中-公开
标题翻译：用于制造成形部件的方法和装置
公开(公告)号：JP2007014978A
公开(公告)日：2007-01-25
申请号：JP2005197558
申请日：2005-07-06
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： ITAKURA KOJI , MITAMURA KAZUHIRO , NAGAMI IKUO , YAMADA YUNOSUKE
IPC分类号： B21D22/26 , B21D24/04 , B21D53/88 , B21J5/08 , B21J13/02 , B21K7/12
摘要： PROBLEM TO BE SOLVED: To provide a method and a device for manufacturing a formed component which enable a local or continuous improvement in the strength of the material of a formed component in spite of an integrated component, a reduction in the weight of the component, and a control of the three-dimensional structure and the plate thickness of the component.
SOLUTION: A thickened portion Z thicker than the plate thickness t0 of a blank material is locally or continuously formed by forging on a forming material P, which is composed of a metallic plate gripped between forging dies 4, 5, by applying a compressive force to the forming material P from the direction perpendicular to its thickness. Further, the formed component W is produced by press-forming the forming material P such that the thickened portion Z coincides with a bent portion 3. Automobile suspension parts, etc. having high stiffness and high strength are manufactured using the formed component W.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于制造成形部件的方法和装置，其能够局部地或连续地提高成形部件的材料的强度，尽管具有一体成分，但是重量的减轻组件，以及组件的三维结构和板厚度的控制。解决方案：通过在形成材料P上锻造而局部地或连续地形成比坯材材料厚度t0厚的加厚部分Z，该成形材料P由夹在锻模4,5之间的金属板构成，从垂直于其厚度的方向到成形材料P的压缩力。此外，成形部件W通过压制成形材料P而制成，使得加厚部分Z与弯曲部分3重合。使用形成的部件W制造具有高刚度和高强度的汽车悬挂部件。 P>版权所有（C）2007，JPO＆INPIT

18. 发明专利

JPH11201136A PARTS FOR INTERNAL COMBUSTION ENGINE OF AUTOMOBILE 失效
公开(公告)号：JPH11201136A
公开(公告)日：1999-07-27
申请号：JP210698
申请日：1998-01-08
申请人： NISSAN MOTOR
发明人： MABUCHI YUTAKA , YASUDA YOSHITERU , ITAKURA KOJI , KANO MAKOTO
IPC分类号： F01L1/04 , C21D10/00 , C23F1/00 , C25F3/24 , F02F1/00 , F16C3/04 , F16H53/02
摘要： PROBLEM TO BE SOLVED: To improve a surface property of a cast iron member containing graphite, and improve the frictional condition, by making the surface of a cast iron member containing graphite corrode, or further by combining grinding and lapping before and after the corrosion of the surface. SOLUTION: In parts of an engine, in the environment the cast iron containing graphite is used in the portion where the frictional condition is severe, the surface is corroded, or grinding and lapping is applied before and after this process. As a corrosion method, a chemical corrosion method due to acid, and an electrolytic polishing method for corroding the surface by adding electrolysis are defined. Since the projections in the interface of graphite produced by this working are removed, in the case where the object is hard material, the effect due to the removal of the projections is significantly produced. Especially, in the case of the surface hardness of HRC 55 or more, the effect is remarkably produced. The surface roughness Ra before the corrosion treatment is to be 0.20 or more, and the lower limit of the surface roughness Ra before the corrosion treatment is to be 0.01.

19. 发明专利

JPH1060588A NON-HEAT TREATED CRANKSHAFT STEEL FOR HOT FORGING 失效
公开(公告)号：JPH1060588A
公开(公告)日：1998-03-03
申请号：JP22946296
申请日：1996-08-13
申请人： DAIDO STEEL CO LTD , NISSAN MOTOR
发明人： KATSUTA TOSHIAKI , INABA HIDEAKI , SAWACHIKA YASUAKI , USUKI HIDEKI , MURAKAMI YOICHI , ITAKURA KOJI
IPC分类号： C22C38/00 , C22C38/44 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive non-heat treated crankshaft steel for hot forging, capable of being formed into a mixed structure of ferrite and pearlite in an air-cooled state after hot forging. SOLUTION: This steel has a composition consisting of, by weight, 0.37-0.43% C, 0.15-0.35% Si, 0.60-0.90% Mn, =0.66%.

20. 发明专利

JPH09310146A PRODUCTION OF NON-HEAT TREATED STEEL FOR HIGH STRENGTH CONNECTING ROD AND HIGH STRENGTH CONNECTING ROD 失效
公开(公告)号：JPH09310146A
公开(公告)日：1997-12-02
申请号：JP12615096
申请日：1996-05-21
申请人： KOBE STEEL LTD , NISSAN MOTOR
发明人： ABE SATOSHI , MATSUSHIMA YOSHITAKE , ITAKURA KOJI , YAMAGUCHI TAKUO , YOSHIKAWA MASAHIRO
IPC分类号： F16C7/02 , C21D8/00 , C22C38/00 , C22C38/12
摘要： PROBLEM TO BE SOLVED: To provide a non-heat treated steel for high strength connecting rod, having high yield ratio even after straightening while securing machinability and excellent in strength. SOLUTION: This steel has a composition consisting of 0.3-0.6% C, 0.05-2.5% Si, 0.3-2.0% Mn, 0.03-0.5% V, 0.001-0.6% Al, 0.003-0.03% N, 0.01-0.12% S, and the balance Fe with inevitable impurities and satisfying the relations in inequalities X=0.7[C]+0.1[Si]+[Mn]-1.6[S]+0.3[V]+0.4[Cr]+0.2[Mo]>=1.50 and Y=[C]+0.1[Si]+0.3[Mn]-[S]+1.7[V]+0.3[Cr]+1.2[Mo]

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