公开(公告)号：US20040007801A1

公开(公告)日：2004-01-15

申请号：US10455430

申请日：2003-06-06

Applicant: TOYODA KOKI KABUSHIKI KAISHA

Inventor： Kenichi Fukumura

IPC: C21D009/32 ,  F16H001/04

CPC classification number: C21D9/32 ,  B62D3/126 ,  C21D1/10 ,  Y02P10/253 ,  Y10T74/1967

Abstract: A method of heat-treating a rack bar includes a step of continuously conveying a rack bar provided with a rack teeth portion and a ball screw portion by a quenching means, and a step of sequentially applying a quenching treatment to each circumferential surface of the rack teeth portion and the ball screw portion. The quenching treatment is preferably and sequentially applied to each entire circumferential surface of the rack teeth portion and the ball screw portion.

Abstract translation: 一种对杆架进行热处理的方法包括通过淬火装置连续输送设置有齿条部分的齿条和滚珠丝杠部分的步骤，以及对架子的每个圆周表面进行淬火处理的步骤 齿部和滚珠丝杠部。 淬火处理优选并依次施加到齿条部分和滚珠丝杠部分的整个圆周表面。

公开(公告)号：US20020014291A1

公开(公告)日：2002-02-07

申请号：US09892372

申请日：2001-06-28

Applicant: AISIN SEIKI KABUSHIKI KAISHA

Inventor： Haruki Ito ,  Yukio Isomura ,  Naoyuki Yamada

IPC: C22C038/00 ,  C21D009/32 ,  C21D008/00

CPC classification number: C21D9/32 ,  C21D1/04 ,  C21D1/09 ,  C21D1/10 ,  C21D2221/02 ,  C22C38/002 ,  C22C38/04 ,  Y02P10/253

Abstract: A flat plate member with gear portion is formed to a predetermined shape by pressing a flat steel raw material having a composition comprising, by weight, 0.10-0.18% C, less than 0.03% Si, 0.60-1.50% Mn, less than 0.020% P, less than 0.013% S, 0.001-0.004% B and the balance Fe with inevitable impurities, wherein quenching is performed on only the gear portion.

公开(公告)号：US20040094234A1

公开(公告)日：2004-05-20

申请号：US10295754

申请日：2002-11-15

Applicant: Curtis Machine Company, Inc.

Inventor： Lloyd Stuart Curtis SR. ,  Warren Eckelman ,  Harvey Blattner ,  Galen Kohn ,  Rajasekhar Pudi ,  John Thomas

IPC: C21D009/32 ,  C23C008/22

CPC classification number: C23C8/22 ,  C21D9/32 ,  C23C8/02 ,  F16H57/0006

Abstract: The present invention is directed to improved methods of reducing the sound level caused by meshing of gear teeth in a gear box, and in particular by reducing distortion caused by heat treatment as used in the manufacturing process of the gear teeth.

Abstract translation: 本发明涉及减少齿轮箱齿轮齿啮合引起的声级的改进方法，特别是通过减少在齿轮齿的制造过程中使用的热处理引起的变形。

公开(公告)号：US20040108023A1

公开(公告)日：2004-06-10

申请号：US10724695

申请日：2003-12-02

Applicant: ALSTOM HOLDINGS and VALDUNES

Inventor： Alain Landrot ,  Francois Demilly

IPC: C21D009/32

CPC classification number: B60B11/00 ,  B60B17/0006 ,  B60B17/0068 ,  Y10T29/49483

Abstract: This invention relates to a safety wheel, for a subway coach bogie, or the like, running on pneumatic tires, adapted to be interposed between a chassis of the bogie and a corresponding tire, said wheel presenting an outer peripheral zone having a braking portion as well as a guiding portion projecting radially outwardly from the braking portion, the hardness of the braking portion being much greater than the hardness of the guiding portion. This may be achieved for example by effecting a selective tempering of the braking portion by peripheral nozzles projecting a cooling liquid. This safety wheel is considerably longer lasting than those of the prior art.

Abstract translation: 本发明涉及适用于在转向架的底盘与相应的轮胎之间插入的充气轮胎上运行的地铁教练转向架等的安全轮，所述车轮具有带有制动部分的外周区域 以及作为从制动部分径向向外突出的引导部分，制动部分的硬度远大于引导部分的硬度。 这可以通过例如通过突出冷却液的外围喷嘴进行制动部分的选择性回火来实现。 该安全轮比现有技术的持续时间长得多。

公开(公告)号：US20020179205A1

公开(公告)日：2002-12-05

申请号：US10152355

申请日：2002-05-22

Inventor： Kouji Ohbayashi ,  Kazunari Suzuki ,  Yoshihisa Yamamoto ,  Kengo Nomura

IPC: C21D009/32

CPC classification number: C21D1/10 ,  C21D9/0068 ,  C21D9/32 ,  F16H57/082 ,  Y02P10/253

Abstract: A planetary carrier supports pinion gears of a planetary gear set via pinion shafts. Each hole in which a pinion shaft is mounted has a shallow hardened wall surface that is hardened by very-high-frequency induction heating and quenching. Therefore, the durability of the pinion shaft-supporting holes of a cold-forged piece or a pressed piece can be improved without thermal strain.

Abstract translation: 行星齿轮架通过小齿轮轴支撑行星齿轮组的小齿轮。 安装有小齿轮轴的每个孔都具有通过非常高频感应加热和淬火而硬化的浅硬化壁面。 因此，可以在没有热应变的情况下改善冷锻件或压制件的小齿轮轴支撑孔的耐久性。