公开(公告)号：US20110163512A1

公开(公告)日：2011-07-07

申请号：US12811416

申请日：2009-09-07

申请人： Takeshi Komoto ,  Hitoshi Sakuma ,  Takashi Hirano ,  Hiroyuki Mizuno ,  Shinya Teramoto ,  Masahiro Toda ,  Hiromasa Takada ,  Makoto Okonogi

发明人： Takeshi Komoto ,  Hitoshi Sakuma ,  Takashi Hirano ,  Hiroyuki Mizuno ,  Shinya Teramoto ,  Masahiro Toda ,  Hiromasa Takada ,  Makoto Okonogi

IPC分类号： B62D7/20 ,  C21D8/00

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： A steel tie rod end includes a shaft portion and first and second fitting portions. A minimum area portion having a small radially cross-sectional area is provided for the shaft portion, and 90% or above of a steel structure of the minimum area portion is formed of martensite or tempered martensite. The surface hardness of the minimum area portion and the average hardness of the radial cross section of the minimum area portion are 600 Hv or below, and the average hardness of the radial cross section of the first fitting portion and the average hardness of the radial cross section of the second fitting portion are 300 Hv or below. A method of manufacturing a steel tie rod end includes a quenching process of heating only a prospective shaft portion by high frequency to an austenitizing temperature and then rapidly cooling the prospective shaft portion by water or cooling medium.

摘要翻译： 钢制拉杆端部包括轴部和第一和第二配合部。 为轴部设置径向截面积较小的最小面积部，最小面积部的钢结构的90％以上由马氏体或回火马氏体形成。 最小面积部分的最小面积部分的表面硬度和最小面积部分的径向横截面的平均硬度为600Hv或以下，第一装配部分的径向横截面的平均硬度和径向横截面的平均硬度 第二装配部的截面为300Hv以下。 制造钢制拉杆端的方法包括将高频加热到奥氏体化温度的预期轴部的淬火工序，然后用水或冷却介质快速冷却前轴部。

公开(公告)号：US08186696B2

公开(公告)日：2012-05-29

申请号：US12811416

申请日：2009-09-07

申请人： Takeshi Komoto ,  Hitoshi Sakuma ,  Takashi Hirano ,  Hiroyuki Mizuno ,  Shinya Teramoto ,  Masahiro Toda ,  Hiromasa Takada ,  Makoto Okonogi

发明人： Takeshi Komoto ,  Hitoshi Sakuma ,  Takashi Hirano ,  Hiroyuki Mizuno ,  Shinya Teramoto ,  Masahiro Toda ,  Hiromasa Takada ,  Makoto Okonogi

IPC分类号： B62D7/16

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： A steel tie rod end includes a shaft portion and first and second fitting portions. A minimum area portion having a small radially cross-sectional area is provided for the shaft portion, and 90% or above of a steel structure of the minimum area portion is formed of martensite or tempered martensite. The surface hardness of the minimum area portion and the average hardness of the radial cross section of the minimum area portion are 600 Hv or below, and the average hardness of the radial cross section of the first fitting portion and the average hardness of the radial cross section of the second fitting portion are 300 Hv or below. A method of manufacturing a steel tie rod end includes a quenching process of heating only a prospective shaft portion by high frequency to an austenitizing temperature and then rapidly cooling the prospective shaft portion by water or cooling medium.

摘要翻译： 钢制拉杆端部包括轴部和第一和第二配合部。 为轴部设置径向截面积较小的最小面积部，最小面积部的钢结构的90％以上由马氏体或回火马氏体形成。 最小面积部分的最小面积部分的表面硬度和最小面积部分的径向横截面的平均硬度为600Hv或以下，第一装配部分的径向横截面的平均硬度和径向横截面的平均硬度 第二装配部的截面为300Hv以下。 制造钢制拉杆端的方法包括将高频加热到奥氏体化温度的预期轴部的淬火工序，然后用水或冷却介质快速冷却前轴部。