公开(公告)号：US08932416B2

公开(公告)日：2015-01-13

申请号：US13375156

申请日：2010-05-26

申请人： Eizaburou Nakanishi ,  Masayuki Miyake ,  Kotobu Nagai ,  Masao Hayakawa ,  Takehito Itagaki ,  Takahiko Kanai ,  Munehisa Hatta ,  Kazuhiro Kawasaki

发明人： Eizaburou Nakanishi ,  Masayuki Miyake ,  Kotobu Nagai ,  Masao Hayakawa ,  Takehito Itagaki ,  Takahiko Kanai ,  Munehisa Hatta ,  Kazuhiro Kawasaki

IPC分类号： C21D9/00 ,  B21D22/02 ,  B21D22/20 ,  B21D37/16 ,  C21D1/42 ,  C22C38/18 ,  C22C38/22

CPC分类号： B21D22/02 ,  B21D22/20 ,  B21D37/16 ,  C21D1/42 ,  C21D1/673 ,  C21D9/00 ,  C21D2211/001 ,  C21D2211/004 ,  C21D2211/008 ,  C22C38/18 ,  C22C38/22 ,  Y02P10/253

摘要： A high-strength die-quenched part 1 is formed by heating a high-strength steel sheet 11 up to an austenite region, hot stamping and cooling inside a mold, and its microstructure has the martensite wherein carbide particles 2 are finely dispersed over an entire region including prior-austenite grain boundaries. It is desirable that the prior-austenite grain size in the microstructure of the high-strength steel sheet, which is a base material, be 10 μm or smaller. The high-strength die-quenched part has high-strength and high-ductility thanks to its martensite.

摘要翻译： 通过将高强度钢板11加热至奥氏体区域，在模具内部进行热冲压和冷却来形成高强度的模具淬火部件1，其微结构具有马氏体，其中碳化物粒子2在整个中精细分散 区域包括先前的奥氏体晶界。 优选的是，作为基材的高强度钢板的微观结构中的以前的奥氏体晶粒尺寸为10μm以下。 高强度模具淬火部分由于其马氏体而具有高强度和高延展性。

公开(公告)号：US20120118440A1

公开(公告)日：2012-05-17

申请号：US13375156

申请日：2010-05-26

申请人： Eizaburou Nakanishi ,  Masayuki Miyake ,  Kotobu Nagai ,  Masao Hayakawa ,  Takehito Itagaki ,  Takahiko Kanai ,  Munehisa Hatta ,  Kazuhiro Kawasaki

发明人： Eizaburou Nakanishi ,  Masayuki Miyake ,  Kotobu Nagai ,  Masao Hayakawa ,  Takehito Itagaki ,  Takahiko Kanai ,  Munehisa Hatta ,  Kazuhiro Kawasaki

IPC分类号： C22C38/18 ,  C21D1/42

CPC分类号： B21D22/02 ,  B21D22/20 ,  B21D37/16 ,  C21D1/42 ,  C21D1/673 ,  C21D9/00 ,  C21D2211/001 ,  C21D2211/004 ,  C21D2211/008 ,  C22C38/18 ,  C22C38/22 ,  Y02P10/253

摘要： A high-strength die-quenched part 1 is formed by heating a high-strength steel sheet 11 up to an austenite region, hot stamping and cooling inside a mold, and its microstructure has the martensite wherein carbide particles 2 are finely dispersed over an entire region including prior-austenite grain boundaries. It is desirable that the prior-austenite grain size in the microstructure of the high-strength steel sheet, which is a base material, be 10 μm or smaller. The high-strength die-quenched part has high-strength and high-ductility thanks to its martensite.

摘要翻译： 通过将高强度钢板11加热至奥氏体区域，在模具内部进行热冲压和冷却来形成高强度的模具淬火部件1，其微结构具有马氏体，其中碳化物粒子2在整个中精细分散 区域包括先前的奥氏体晶界。 优选的是，作为基材的高强度钢板的微观结构中的以前的奥氏体晶粒尺寸为10μm以下。 高强度模具淬火部分由于其马氏体而具有高强度和高延展性。

公开(公告)号：US09498840B2

公开(公告)日：2016-11-22

申请号：US13388239

申请日：2010-07-30

申请人： Takahiko Kanai ,  Munehisa Hatta ,  Fumiaki Ikuta ,  Kazuhiro Kawasaki ,  Eizaburou Nakanishi ,  Masayuki Miyake ,  Kotobu Nagai ,  Masao Hayakawa ,  Takehiko Itagaki

发明人： Takahiko Kanai ,  Munehisa Hatta ,  Fumiaki Ikuta ,  Kazuhiro Kawasaki ,  Eizaburou Nakanishi ,  Masayuki Miyake ,  Kotobu Nagai ,  Masao Hayakawa ,  Takehiko Itagaki

IPC分类号： B23K9/28 ,  B23K11/11 ,  B23K11/24 ,  B23K11/26 ,  B23K11/31 ,  C22C38/00

CPC分类号： B23K11/115 ,  B23K11/24 ,  B23K11/26 ,  B23K11/312 ,  B23K2101/006 ,  B23K2101/18 ,  B23K2103/04 ,  C22C38/00 ,  Y10T428/12965

摘要： A welding structural part 1 is manufactured by overlapping the surfaces of steel sheets 2, and forming a weld zone by spot welding. The weld zone 3 includes: a weld nugget 4; and a heat affected zone 5 surrounding the weld nugget 4, wherein the hardness in the weld zone increases along an exterior region 6 of the heat affected zone 5 toward the heat affected zone 5, and then decreases along the heat affected zone 5 toward the central region of the weld nugget 4. In the boundary region between the weld nugget 4 and the heat affected zone 5, the weld nugget 4 may have a convex portion 4A bulging into the heat affected zone 5 along the overlapped portion. The steel sheets 2 contain carbon in 0.15 mass % or more.

摘要翻译： 通过重叠钢板2的表面，通过点焊形成焊接区域来制造焊接结构体1。 焊接区3包括：焊点4; 以及围绕焊点4的热影响区域5，其中焊接区域中的硬度沿着热影响区域5的外部区域6朝向热影响区域5增加，然后沿热影响区域5朝向中心 在焊接熔核4与热影响区5之间的边界区域中，焊点4可以具有沿重叠部分向热影响区5内凸出的凸部4A。 钢板2含有0.15质量％以上的碳。

公开(公告)号：US20120129006A1

公开(公告)日：2012-05-24

申请号：US13388239

申请日：2010-07-30

申请人： Takahiko Kanai ,  Munehisa Hatta ,  Fumiaki Ikuta ,  Kazuhiro Kawasaki ,  Eizaburou Nakanishi ,  Masayuki Miyake ,  Kotobu Nagai ,  Masao Hayakawa ,  Takehiko Itagaki

发明人： Takahiko Kanai ,  Munehisa Hatta ,  Fumiaki Ikuta ,  Kazuhiro Kawasaki ,  Eizaburou Nakanishi ,  Masayuki Miyake ,  Kotobu Nagai ,  Masao Hayakawa ,  Takehiko Itagaki

IPC分类号： B32B15/01 ,  B23K11/11

CPC分类号： B23K11/115 ,  B23K11/24 ,  B23K11/26 ,  B23K11/312 ,  B23K2101/006 ,  B23K2101/18 ,  B23K2103/04 ,  C22C38/00 ,  Y10T428/12965

摘要： A welding structural part 1 is manufactured by overlapping the surfaces of steel sheets 2, and forming a weld zone by spot welding. The weld zone 3 includes: a weld nugget 4; and a heat affected zone 5 surrounding the weld nugget 4, wherein the hardness in the weld zone increases along an exterior region 6 of the heat affected zone 5 toward the heat affected zone 5, and then decreases along the heat affected zone 5 toward the central region of the weld nugget 4. In the boundary region between the weld nugget 4 and the heat affected zone 5, the weld nugget 4 may have a convex portion 4A bulging into the heat affected zone 5 along the overlapped portion. The steel sheets 2 contain carbon in 0.15 mass % or more.

摘要翻译： 通过重叠钢板2的表面，通过点焊形成焊接区域来制造焊接结构体1。 焊接区3包括：焊点4; 以及围绕焊点4的热影响区域5，其中焊接区域中的硬度沿着热影响区域5的外部区域6朝向热影响区域5增加，然后沿热影响区域5朝向中心 在焊接熔核4与热影响区5之间的边界区域中，焊点4可以具有沿重叠部分向热影响区5内凸出的凸部4A。 钢板2含有0.15质量％以上的碳。

公开(公告)号：US10189112B2

公开(公告)日：2019-01-29

申请号：US14738364

申请日：2015-06-12

申请人： Takahiko Kanai ,  Munehisa Hatta ,  Fumiaki Ikuta ,  Kazuhiro Kawasaki ,  Eizaburo Nakanishi ,  Tsuyoshi Yoshida ,  Kotobu Nagai ,  Masao Hayakawa ,  Takehiko Itagaki

发明人： Takahiko Kanai ,  Munehisa Hatta ,  Fumiaki Ikuta ,  Kazuhiro Kawasaki ,  Eizaburo Nakanishi ,  Tsuyoshi Yoshida ,  Kotobu Nagai ,  Masao Hayakawa ,  Takehiko Itagaki

IPC分类号： B23K11/11 ,  B23K11/24 ,  B23K11/26 ,  B23K11/31 ,  B23K13/08 ,  B23K101/18 ,  B23K103/04

摘要： A welding equipment for metallic materials capable of performing heat treatment such as tempering based on partial heating in spot welding is provided. The welding equipment sandwiches metallic materials with a pair of electrodes, and heats different regions of the metallic materials by energization, with the pair of electrodes maintained at the same position with respect to the metallic materials. The welding equipment includes a first heating means connected to the pair of electrodes for heating and welding the internal region of the circle defined by projecting the cross-sectional area of the axis of the electrodes on the metallic materials by applying power having a low first frequency, a second heating means for heating a ring-shaped region along the circle by applying power having a second frequency that is higher than the first frequency, and an energization control unit for independently controlling the first and the second heating means.

公开(公告)号：US09079266B2

公开(公告)日：2015-07-14

申请号：US13121408

申请日：2009-09-30

申请人： Takahiko Kanai ,  Munehisa Hatta ,  Fumiaki Ikuta ,  Kazuhiro Kawasaki ,  Eizaburo Nakanishi ,  Tsuyoshi Yoshida ,  Kotobu Nagai ,  Masao Hayakawa ,  Takehiko Itagaki

发明人： Takahiko Kanai ,  Munehisa Hatta ,  Fumiaki Ikuta ,  Kazuhiro Kawasaki ,  Eizaburo Nakanishi ,  Tsuyoshi Yoshida ,  Kotobu Nagai ,  Masao Hayakawa ,  Takehiko Itagaki

IPC分类号： B23K11/00 ,  B23K11/11 ,  B23K11/24 ,  B23K11/26 ,  B23K11/31

CPC分类号： B23K11/115 ,  B23K11/24 ,  B23K11/241 ,  B23K11/26 ,  B23K11/312 ,  B23K13/08 ,  B23K2101/18 ,  B23K2103/04

摘要： A welding equipment for metallic materials capable of performing heat treatment such as tempering based on partial heating in spot welding is provided. The welding equipment 1 sandwiches metallic materials 9 with a pair of electrodes 4, 4, and heats different regions of the metallic materials 9 by energization, with the pair of electrodes 4, 4 maintained at the same position with respect to the metallic materials 9. The welding equipment includes a first heating means 6 connected to the pair of electrodes 4, 4 for heating and welding the internal region of the circle defined by projecting the cross-sectional area of the axis of the electrodes on the metallic materials by applying power having a low first frequency, a second heating means 8 for heating a ring-shaped region along the circle by applying power having a second frequency that is higher than the first frequency, and an energization control unit 10 for independently controlling the first and the second heating means 6, 8.

摘要翻译： 提供了一种能够进行热处理的金属材料的焊接设备，例如在点焊中基于部分加热的回火。 焊接设备1用一对电极4,4将金属材料9夹在中间，并且通过通电而加热金属材料9的不同区域，同时电极对4和4相对于金属材料9保持在相同的位置。 焊接设备包括连接到一对电极4,4的第一加热装置6，用于加热和焊接通过将金属材料的轴线的横截面积投影在金属材料上而限定的圆的内部区域， 低第一频率的第二加热装置8，用于通过施加具有高于第一频率的第二频率的功率沿着圆加热环形区域的第二加热装置8以及用于独立地控制第一和第二加热的通电控制单元10 指6,8。

公开(公告)号：US20110303655A1

公开(公告)日：2011-12-15

申请号：US13121408

申请日：2009-09-30

申请人： Takahiko Kanai ,  Munehisa Hatta ,  Fumiaki Ikuta ,  Kazuhiro Kawasaki ,  Eizaburo Nakanishi ,  Tsuyoshi Yoshida ,  Kotobu Nagai ,  Masao Hayakawa ,  Takehiko Itagaki

发明人： Takahiko Kanai ,  Munehisa Hatta ,  Fumiaki Ikuta ,  Kazuhiro Kawasaki ,  Eizaburo Nakanishi ,  Tsuyoshi Yoshida ,  Kotobu Nagai ,  Masao Hayakawa ,  Takehiko Itagaki

IPC分类号： H05B6/06 ,  B23K11/24

CPC分类号： B23K11/115 ,  B23K11/24 ,  B23K11/241 ,  B23K11/26 ,  B23K11/312 ,  B23K13/08 ,  B23K2101/18 ,  B23K2103/04

摘要： A welding equipment for metallic materials capable of performing heat treatment such as tempering based on partial heating in spot welding is provided. The welding equipment 1 sandwiches metallic materials 9 with a pair of electrodes 4, 4, and heats different regions of the metallic materials 9 by energization, with the pair of electrodes 4, 4 maintained at the same position with respect to the metallic materials 9. The welding equipment includes a first heating means 6 connected to the pair of electrodes 4, 4 for heating and welding the internal region of the circle defined by projecting the cross-sectional area of the axis of the electrodes on the metallic materials by applying power having a low first frequency, a second heating means 8 for heating a ring-shaped region along the circle by applying power having a second frequency that is higher than the first frequency, and an energization control unit 10 for independently controlling the first and the second heating means 6, 8.

摘要翻译： 提供了一种能够进行热处理的金属材料的焊接设备，例如在点焊中基于部分加热的回火。 焊接设备1通过一对电极4,4将金属材料9夹在中间，并通过通电而加热金属材料9的不同区域，同时电极对4,4相对于金属材料9保持在相同的位置。 焊接设备包括连接到一对电极4,4的第一加热装置6，用于加热和焊接通过将金属材料的轴线的横截面积投影在金属材料上而限定的圆的内部区域， 低第一频率的第二加热装置8，用于通过施加具有高于第一频率的第二频率的功率沿着圆加热环形区域的第二加热装置8以及用于独立地控制第一和第二加热的通电控制单元10 指6,8。