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1. 发明专利

JP2010172947A Method of super-high temperature hot forging 审中-公开
标题翻译：超高温锻造方法
公开(公告)号：JP2010172947A
公开(公告)日：2010-08-12
申请号：JP2009019143
申请日：2009-01-30
申请人： Aichi Steel Works Ltd , Nippon Steel Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 愛知製鋼株式会社 , 新日本製鐵株式会社
发明人： KAWAMOTO TAKESHI , KATO HIDEHISA , NAKAMURA MASAHITO , OKA MASAHIRO , HIRACHI SHINGO , KADA OSAMU , TAKADA HIROTADA , TODA MASAHIRO
IPC分类号： B21J1/06 , C21D8/00 , C21D9/30 , C22C38/00
摘要： PROBLEM TO BE SOLVED: To provide a method of super-high temperature hot forging to reduce a surface crack of a forged article.
SOLUTION: The method of super-high temperature hot forging includes, a heating step of heating a steel material at ≥1,250°C, and a rough forging step of hot forging after the heating of the steel material, in which die temperature of a third forging die used in a final forging step is made lower than the heating temperature in the heating step by ≥1,130°C. By lowering the die temperature of the third forging die, adherence of oxidized scale to a die surface of the third forging die is controlled, and the surface crack of the forged article is reduced.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种超高温热锻方法，以减少锻造制品的表面裂纹。解决方案：超高温热锻的方法包括：加热钢材的加热步骤，在≥2,250℃，以及加热钢材后进行热锻的粗加工步骤，其中模具温度在第一锻造步骤中使用的第三锻模的制造温度低于加热步骤中的加热温度≥1,130℃。通过降低第三锻模的模具温度，控制氧化鳞片与第三锻模的模具表面的粘合，并且锻造制品的表面裂纹减小。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2008247339A Tie rod and its manufacturing method 有权
标题翻译： TIE ROD及其制造方法
公开(公告)号：JP2008247339A
公开(公告)日：2008-10-16
申请号：JP2007094463
申请日：2007-03-30
申请人： Nippon Steel Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 新日本製鐵株式会社
发明人： YANO HITOSHI , MORI MOTOHIDE , SAKUMA HITOSHI , IMAI KAZUHIKO , OKONOGI MAKOTO , TODA MASAHIRO , TAKADA HIROTADA , TERAMOTO SHINYA
IPC分类号： B62D7/08
摘要： PROBLEM TO BE SOLVED: To provide a tie rod capable of smoothly transmitting the steering operation of a driver to a wheel and enhancing a steering feeling of the driver.
SOLUTION: In the tie rod 1 provided with at least a shaft 10 and mounting parts 20, 30 at both ends of the shaft 10, the shaft 10 has a small cross section area 13 getting a smaller cross section area than respective cross section areas of both ends 11, 12 of the shaft, and a ratio of the cross section area Dmin of the small cross section area 13 to the respective cross section areas D1, D2 of both ends 11, 12 is 0.8 or smaller.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供能够平稳地将驾驶员的转向操作传递到车轮并提高驾驶员的转向感的拉杆。解决方案：在具有至少一个轴10和在轴10两端的安装部分20,30的拉杆1中，轴10具有小的横截面积13，其横截面面积比相应的横截面小轴的两端部11,12的截面积以及小截面积13的截面积Dmin与两端部11,12的截面积D1，D2的比率为0.8以下。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2005082840A Method for producing hot-forged non-heattreated part excellent in machinability 有权
标题翻译：用于生产机加工性能优异的非加热部件的方法
公开(公告)号：JP2005082840A
公开(公告)日：2005-03-31
申请号：JP2003314500
申请日：2003-09-05
申请人： Aichi Steel Works Ltd , Nippon Steel Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 愛知製鋼株式会社 , 新日本製鐵株式会社
发明人： IWAKI SHOJI , NOMURA KAZUE , TANAKA TATSUO , ONO NAOHITO , KINO KINSEI , TODA MASAHIRO , KADA OSAMU
IPC分类号： B21J5/00 , C21D8/00 , C22C38/00 , C22C38/38 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a new forging method capable of improving the machinability of a forged product independently of a machinability improving element.
SOLUTION: A steel material, which contains, by mass%, of 0.20-0.60% C, 0.10-2.00% Si, 0.30-2.00% Mn, 0.01-0.20% S, 0.05-2.00% Cr, ≤0.060% Al, 0.01-0.05% V, 0.003-0.020% N and if necessary, one or more kinds of Ti, Pb, Te, Ca, Bi, Mg, Zr and the balance Fe with impurity elements, is heated to either higher temperature of (solidus temperature) × 0.94 or 1,250°C as the lower limit temperature and in the range of ≤(liquidus temperature) × 0.98 as the upper limit temperature, and a hot-forging at the super-high temperature is applied so that ≥85% of the surface of a blank is brought into contact with dies in the range of the temperature to make the hot-forged product having ferrite and pearite structure and ≤No.25 average austenitic crystal grain size number.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够独立于机械加工性改善元件提高锻造产品的机械加工性的新的锻造方法。解决方案：一种钢材，以质量％计含有0.20-0.60％C，0.10-2.00％Si，0.30-2.00％Mn，0.01-0.20％S，0.05-2.00％Cr，≤0.060％ Al，0.01-0.05％V，0.003-0.020％N，如果需要，可以将Ti，Pb，Te，Ca，Bi，Mg，Zr和余量的Fe与杂质元素的一种或多种加热到（固相线温度）×0.94或1250℃作为上限温度，在≤（液相线温度）×0.98的范围内作为上限温度，并且施加超高温的热锻，使得≥85 坯料表面的％在温度范围内与模具接触，使得具有铁素体和珠光体结构的热锻产品和≤N.25平均奥氏体晶粒尺寸数。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2004346415A Ultrahigh-temperature hot-forged non-heat-treated parts and manufacturing method therefor 有权
公开(公告)号：JP2004346415A
公开(公告)日：2004-12-09
申请号：JP2003148077
申请日：2003-05-26
申请人： Aichi Steel Works Ltd , Nippon Steel Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 愛知製鋼株式会社 , 新日本製鐵株式会社
发明人： TODA MASAHIRO , KADA OSAMU , FUJITA TAKASHI , KINO KINSEI , ONO NAOHITO , IYODA IKUHIDE , IWAKI SHOJI , NOMURA KAZUE , SEGAWA KOHEI
IPC分类号： B21J5/00 , C21D8/06 , C22C38/00 , C22C38/12 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To solve problems of the deterioration of toughness in hot-forged parts and the like, in an ultrahigh-temperature hot-forging process for manufacturing complex shaped parts and improving a material yield during manufacturing.
SOLUTION: The ultrahigh-temperature hot-forged non-heat-treated parts include predetermined components, and have a micro structure comprising ferrite and pearlite, average grain sizes of ferrite and pearlite of less than 10 μm, a total decarburized depth DM-T specified in JIS G 0588 of 0.02 to 0.06 mm, a tensile strength of 800 to 1,300 MPa, and a yield ratio of 0.7 to 0.95. The manufacturing method comprises heating a steel material into a temperature range between the lower limit of either higher one out of the solidus temperature[°C]×0.94 or 1,250°C, and the upper limit of the solidus temperature[°C]×0.98; ultrahigh-temperature hot-forging the product in the above temperature range; then further finish-forging the forged workpiece so as to make a logarithmic strain 0.5 or more, at 700°C or higher but less than 800°C; and then radiationally cooling the product.
COPYRIGHT: (C)2005,JPO&NCIPI

5. 发明专利

JP2004060049A Ultrahigh temperature hot forged non-heat-treated part and method for producing the same 有权
公开(公告)号：JP2004060049A
公开(公告)日：2004-02-26
申请号：JP2003141376
申请日：2003-05-20
申请人： Aichi Steel Works Ltd , Nippon Steel Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 愛知製鋼株式会社 , 新日本製鐵株式会社
发明人： TODA MASAHIRO , KADA OSAMU , OZAWA SHUJI , ONO NAOHITO , SEGAWA HARUHIKO , MORI MOTOHIDE , KINO KINSEI , SEGAWA KOHEI , NOMURA KAZUE , IWAKI SHOJI
IPC分类号： B21J5/00 , C21D8/06 , C22C38/00 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To solve the problem as for deterioration in toughness after forging in ultrahigh temperature hot forging for producing a part having a shape more complicated than that of the conventional hot forged part or improving the yield of the material on production.
SOLUTION: In the ultrahigh temperature hot forged non-heat-treated part, a steel member having prescribed components is used, the fraction of ferrite is 0.1 to 0.6, the average grain size of ferrite is 10 to 30 μm, and the depth of all decarburized layers is 0.02 to 0.08 mm. In the superhigh temperature hot forging method, a steel member is heated in such a manner that the lower limit temperature is controlled to a solidus temperature×0.94 and the upper limit temperature is controlled to a solidus temperature or lower, and is subjected to ultrahigh temperature hot forging, and thereafter, the workpiece is subjected to finish forging of 0.2 in logarithmic strain at 900 to 1,250°C, and is thereafter allowed to cool.
COPYRIGHT: (C)2004,JPO

6. 发明专利

JP2010077505A Tie rod end made from steel and method for manufacturing the same 有权
标题翻译：从钢制成的端部端部及其制造方法
公开(公告)号：JP2010077505A
公开(公告)日：2010-04-08
申请号：JP2008248397
申请日：2008-09-26
申请人： Aichi Steel Works Ltd , Nippon Steel Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 愛知製鋼株式会社 , 新日本製鐵株式会社
发明人： KAWAMOTO TAKESHI , SAKUMA HITOSHI , HIRANO TAKASHI , MIZUNO HIROYUKI , TERAMOTO SHINYA , TODA MASAHIRO , TAKADA HIROTADA , OKONOGI MAKOTO
IPC分类号： C21D9/00 , B62D7/08
CPC分类号： B62D7/20 , B60G7/001 , B60G2206/11 , B60G2206/8401 , B60G2206/8402 , C21D1/25 , C21D9/0068 , C21D9/0075 , C21D2211/008 , C21D2221/01
摘要： PROBLEM TO BE SOLVED: To provide a tie rod end having low rigidity, high strength and superior impact properties, and to provide a method for manufacturing the same.
SOLUTION: The tie rod end 1 made from steel having a shank 2, a first attaching part 3 and a second attaching part 4 has the smallest area part 26 provided in the shank 2, of which the cross-sectional area in the diametrical direction is small. The smallest area part 26 also has a steel structure of which 90% or more is constituted by martensite or tempered martensite. The surface hardness and the average hardness of the cross-section in the diametrical direction of the smallest area part 26 are controlled to 600 Hv or less, and the average hardness of the cross-section in the diametrical direction of the first attaching part 3 and the average hardness of the cross-section in the diametrical direction of the second attaching part 4 are controlled to 300 Hv or less. The method for manufacturing the tie rod end 1 made from steel includes a quenching step of heating only a scheduled part of the shank to an austenitizing temperature with a high-frequency wave, and then rapid-cooling the shank with water or a coolant.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供具有低刚性，高强度和优异冲击性能的拉杆端，并提供其制造方法。解决方案：由具有柄2，第一安装部3和第二安装部4的钢制成的拉杆端1具有设置在柄部2中的最小区域部26，其中截面积直径方向小。最小面积部26也具有由马氏体或回火马氏体构成的90％以上的钢结构。将最小面积部26的直径方向的截面的表面硬度和平均硬度控制为600Hv以下，将第一安装部3的直径方向的截面的平均硬度和将第二安装部4的直径方向的截面的平均硬度控制在300Hv以下。用于制造由钢制成的拉杆端1的方法包括：淬火步骤，其仅使用高频波将柄部的预定部分加热到奥氏体化温度，然后用水或冷却剂快速冷却柄部。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2007301617A Apparatus and method for separating pressure welded material 有权
标题翻译：用于分离压力焊接材料的装置和方法
公开(公告)号：JP2007301617A
公开(公告)日：2007-11-22
申请号：JP2006134188
申请日：2006-05-12
申请人： Aichi Steel Works Ltd , Nippon Steel Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 愛知製鋼株式会社 , 新日本製鐵株式会社
发明人： KADA OSAMU , TODA MASAHIRO , KAWABATA TERUO , TANAHASHI KAZUHIRO , INOGUCHI TAMAKI , MORI MOTOHIDE , KINO KINSEI , IWAKI SHOJI , KATO HIDEHISA , MIZUNO HIROYUKI
IPC分类号： B21K27/00 , B21J1/06
摘要： PROBLEM TO BE SOLVED: To provide an apparatus and a method for separating a pressure welded material, with which the pressure welded material in an induction heating furnace is separated without remaining flaw and hitting mark on the material. SOLUTION: The apparatus for separating the pressure welded material, is constituted of a holding mechanism for the rear part of the pressure welded material, a supporting mechanism for the material, a separating power applying mechanism, and a detecting sensor for the pressure welded material, which is arranged in order from the outlet side of the induction heating furnace. The pressure welded material is separated by applying the separating power so that L 1 [mm], horizontal distance between the supporting mechanism and the separating power applying mechanism, L 3 [mm], distance between the center of the position for applying the separating power and the pressure welded surfaces of a first material and a second material, and D [mm], diameter of the material, become D 3 1 by using the apparatus for separating the pressure welded material in which with D [mm], L 1 [mm] and L 2 [mm], horizontal distance between the holding mechanism and the above separating mechanism, are L 1 >D and L 2 >D. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于分离压力焊接材料的装置和方法，通过该压力焊接材料分离感应加热炉中的压焊材料，而不会在材料上留下缺陷和撞击痕迹。解决方案：用于分离压焊材料的装置由用于压焊材料的后部的保持机构，用于材料的支撑机构，分离力施加机构和用于压力的检测传感器构成焊接材料，其从感应加热炉的出口侧依次排列。通过施加分离能力使压力焊接材料分离，使得支撑机构和分离动力施加机构之间的水平距离L 1 [mm]，L 3 ]，用于施加分离功率的位置的中心与第一材料和第二材料的压力焊接表面之间的距离以及材料的直径D [mm]变为D 3 1 [mm]和L 2 1 > [mm]，保持机构与上述分离机构的水平距离为L 1 > D，L 2 > D。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2004360070A Ultrahigh temperature hot-forged non-heat-treated part, and its production method 有权
公开(公告)号：JP2004360070A
公开(公告)日：2004-12-24
申请号：JP2004142517
申请日：2004-05-12
申请人： Aichi Steel Works Ltd , Nippon Steel Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 愛知製鋼株式会社 , 新日本製鐵株式会社
发明人： KADA OSAMU , TODA MASAHIRO , ONO NAOHITO , KINO KINSEI , SEGAWA KOHEI , IWAKI SHOJI , NOMURA KAZUE
IPC分类号： B21J1/02 , B21J5/00 , C21D8/00 , C22C38/00 , C22C38/38
摘要： PROBLEM TO BE SOLVED: To provide an ultrahigh temperature hot-forged non-heat-treated part with a complicated shape which has high strength and high toughness even if quenching and tempering are obviated by an ultrahigh temperature hot forging method capable of improving the yield of the material and capable of securing the service life of a die.
SOLUTION: The ultrahigh temperature hot-forged non-heat-treated part has prescribed components and has a microstructure of ferrite and pearlite. In the surface layer part of a forging in the range from the surface to 1/20 of the thickness, the ferrite fraction Fs is 0.15 to 0.7, and the average ferrite grain diameter ds is 5 to 20 μm. In the central part of the forging in the range from the center of the thickness in the forging to 2/5, the ferrite fraction Fc is 0.1 to 0.6, and the average ferrite grain diameter dc is 10 to 30 μm. Also, Fs/Fc is 1.05 to 1.40, and ds/dc is 0.80 to 095.
COPYRIGHT: (C)2005,JPO&NCIPI

9. 发明专利

JP2008013813A Method for producing structure-controlled steel and structure-controlled steel 审中-公开
标题翻译：用于生产结构控制钢和结构控制钢的方法
公开(公告)号：JP2008013813A
公开(公告)日：2008-01-24
申请号：JP2006186388
申请日：2006-07-06
申请人： Aichi Steel Works Ltd , Nippon Steel Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 愛知製鋼株式会社 , 新日本製鐵株式会社
发明人： TANAHASHI KAZUHIRO , MORI MOTOHIDE , KADA OSAMU , TODA MASAHIRO , TAKADA HIROTADA , MIZUNO HIROYUKI , IWAKI SHOJI , KATO HIDEHISA
IPC分类号： C21D8/00 , C22C38/00 , C22C38/06 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a method for producing structure-controlled steel and the structure-controlled steel, in which the structure of the steel is made more fine by restraining coarsening of crystal grains in the steel.
SOLUTION: The method for producing the structure-controlled steel is disclosed by which the structure-controlled steel is produced by hot-forging steel containing 0.10-0.48 mass% C, 0.15-1.60 mass% Si, 0.60-2.50 mass% Mn, >0 mass% to 0.020 mass% N and a prescribed content of Al, the hot forging being performed at 900-1,150°C. It is preferable that the steel contains 0.015-0.050 mass% Al.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：提供一种结构控制钢和结构控制钢的制造方法，其中钢的结构通过抑制钢中的晶粒的粗化而变得更细。＆lt;解决方案＆gt;公开了该结构控制钢的制造方法，其中通过含有0.10-0.48质量％C，0.15-1.60质量％Si，0.60-2.50质量％的热锻钢制成结构控制钢， Mn，> 0质量％〜0.020质量％N，规定含量的Al，热锻造在900-1,150℃下进行。优选钢含有0.015〜0.050质量％的Al。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2005054228A Easily rupture-separating ultrahigh-temperature hot-forged non-heat-treated component for connecting rod, and manufacturing method therefor 有权
标题翻译：易破裂分离超高温加热非加热元件连接件及其制造方法
公开(公告)号：JP2005054228A
公开(公告)日：2005-03-03
申请号：JP2003285890
申请日：2003-08-04
申请人： Aichi Steel Works Ltd , Nippon Steel Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 愛知製鋼株式会社 , 新日本製鐵株式会社
发明人： IWAKI SHOJI , IWAMA NAOKI , KATO HIDEHISA , TANAKA TATSUO , ONO NAOHITO , KINO KINSEI , TODA MASAHIRO , KADA OSAMU
IPC分类号： B21J5/00 , B21K1/14 , C22C38/00 , C22C38/38 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a hot-forged component having stable and superior rupture-separability secured even in consideration of fluctuation when being manufactured.
SOLUTION: This component comprises, by wt.%, 0.20-0.60% C, 0.10-2.50% Si, 0.30-2.00% Mn, 0.01-0.20% P, 0.05-2.00% Cr, 0.060% or less Al, 0.01-0.50% V, 0.003-0.020% N, one or more elements from among 0.04-0.20% S, 0.30% or less Pb, 0.30% or less Te, 0.01% or less Ca, 0.30% or less Bi, 0.01% or less Mg and 0.01% or less Zr, as needed, and the balance Fe with impurity elements; has the structure of ferrite-pearlite; and contains austenitic grains having an average grain size number of 2.5 or less.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：即使考虑到制造时的波动，也能够确保稳定而优异的断裂分离性的热锻部件。解决方案：该组分包括重量％，0.20-0.60％C，0.10-2.50％Si，0.30-2.00％Mn，0.01-0.20％P，0.05-2.00％Cr，0.060％或更少的Al， 0.01-0.50％V，0.003-0.020％N，0.04-0.20％S，0.30％或更少的Pb，0.30％或更少的Te，0.01％或更少的Ca，0.30％或更少的Bi，0.01％或更少的Mg和0.01％或更少的Zr，并且余量为Fe与杂质元素; 具有铁素体 - 珠光体的结构; 并且含有平均粒径数为2.5以下的奥氏体晶粒。版权所有（C）2005，JPO＆NCIPI

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