公开(公告)号：KR1020120043546A

公开(公告)日：2012-05-04

申请号：KR1020100104887

申请日：2010-10-26

Applicant: 현대자동차주식회사

Inventor： 조봉래 ,  강창원

IPC: C22C38/22 ,  F16H1/02

CPC classification number: C22C38/22 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/24 ,  C23C8/22 ,  F16H1/00

Abstract: PURPOSE: Cr-Mo alloy steel for an annulus gear of a transmission and an annulus gear of a transmission manufactured using the same are provided to cancel the degradation of physical properties in low-temperature carbonization because of increased hardenability of a core part compared to Cr-based low temperature cemented steel. CONSTITUTION: Cr-Mo alloy steel for an annulus gear of a transmission comprises carbon of 0.17-0.24 weight%, chrome of 0.8-1.2 weight%, molybdenum of 0.35-0.45 weight%, manganese of 0.4-0.7weight%, silicon of 0.8-1.2 weight%, phosphorus of 0.02 weight% or less, sulfur of 0.02 weight% or less, vanadium of 0.015-0.045 weight%, oxygen of 10ppm or less, and iron of the remaining amount. An annulus gear of a transmission is manufactured through low-temperature carbonization of the Cr-Mo alloy steel at a carburizing temperature of 810-830°C.

Abstract translation: 目的：提供用于传动装置的环形齿轮和使用其制造的变速器的环形齿轮的Cr-Mo合金钢，以抵消低温碳化中的物理性能的降低，因为与Cr相比，芯部的淬透性提高 的低温胶结钢。 构成：用于变速器环形齿轮的Cr-Mo合金钢包含0.17-0.24重量％的碳，0.8-1.2重量％的铬，0.35-0.45重量％的钼，0.4-0.7重量％的锰，0.8的硅 -1.2重量％，0.02重量％以下的磷，0.02重量％以下的硫，0.015-0.045重量％的钒，10ppm以下的氧，剩余量的铁。 传动装置的环形齿轮通过在810-830℃的渗碳温度下通过Cr-Mo合金钢的低温碳化制造。

公开(公告)号：KR1020090061404A

公开(公告)日：2009-06-16

申请号：KR1020070128408

申请日：2007-12-11

Applicant: 현대자동차주식회사

Inventor： 강창원

IPC: C21D1/00

CPC classification number: C21D1/00 ,  C21D9/28

Abstract: A heat treatment method of ultra fine grained steel for transmission shaft is provided to minimize partial thermal deformation of parts by air-cooling the heated part after making the temperatures of the parts uniform. A heat treatment method of ultra fine grained steel for transmission shaft comprises a step of heating hot-forged ultra fine grained steel at 740~760°C for 180 minutes, a step of cooling to 610~630°C at the speed of 4~5°C/min, and a step of maintaining it at 610~630°C for 15 minutes and then air-cooling. The method executes pre-heat treatment condition optimized for ultra fine grained steel to perform a spline forging process, a cold-molding process, easily.

Abstract translation: 提供一种用于传动轴的超细晶粒钢的热处理方法，用于在使部件的温度均匀后，通过对加热部件进行空气冷却来最小化部件的热变形。 用于传动轴的超细晶粒钢的热处理方法包括在740〜760℃下加热热锻超细晶粒180分钟的步骤，以4〜6℃的速度冷却至610〜630℃， 5℃/分钟，将其保持在610〜630℃15分钟，然后冷却。 该方法执行针对超细晶粒钢优化的预热处理条件，容易地进行花键锻造工艺，冷成型工艺。

公开(公告)号：KR1020080019825A

公开(公告)日：2008-03-05

申请号：KR1020060082227

申请日：2006-08-29

Applicant: 현대자동차주식회사

Inventor： 강창원

IPC: G01M13/02 ,  G01M13/00

CPC classification number: G01M13/027 ,  G01N3/32

Abstract: A jig for testing fatigue strength of a gear is provided to perform a fatigue strength test without cutting a gear near a measuring object. A jig for testing fatigue strength of a gear comprises a pair of main jigs(10) and an assistant jig(20). The main jigs are formed in a rectangular parallelepiped shape and installed apart from each other, and have wedge type fixtures(15) in one sides of the front ends thereof. The assistant jigs are formed in a rectangular parallelepiped shape and installed near one sides of the fixture of the main jig.

Abstract translation: 提供用于测试齿轮的疲劳强度的夹具，以在不切割测量对象附近的齿轮的情况下进行疲劳强度测试。 用于测试齿轮的疲劳强度的夹具包括一对主夹具（10）和辅助夹具（20）。 主夹具形成为长方体形状并彼此分离安装，并且在其前端的一侧具有楔形固定件（15）。 辅助夹具形成为长方体形状，并安装在主夹具的夹具的一侧附近。