公开(公告)号：US20150037198A1

公开(公告)日：2015-02-05

申请号：US13954212

申请日：2013-07-30

Applicant: Caterpillar Inc.

Inventor： Tianjun Liu ,  Mohammed Maniruzzaman ,  Matthew Thomas Kiser ,  Thomas John Yaniak

IPC: C22C38/34 ,  C22C38/32 ,  C22C38/28 ,  C22C38/00 ,  C22C38/22 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/60 ,  C22C38/24

CPC classification number: C22C38/34 ,  C21D1/25 ,  C21D9/22 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/22 ,  C22C38/24 ,  C22C38/28 ,  C22C38/32 ,  C22C38/60

Abstract: A steel article is provided for improved wear resistance due to optimized hardness, toughness and temper resistance. In one exemplary embodiment, the steel article may have a composition including about 0,2 to 0.43 percent by weight of carbon, about 0.5 to about 3.0 percent by weight of silicon, about 0.01 to about 3.0 percent by weight of chromium, and 0.43 to about 2.5 percent by weight of vanadium.

Abstract translation: 提供钢制品，由于优化的硬度，韧性和耐回火性而提高耐磨性。 在一个示例性实施方案中，钢制品可以具有包含约0.2至0.43重量％的碳，约0.5至约3.0重量％的硅，约0.01至约3.0重量％的铬和0.43至 约2.5重量％的钒。

公开(公告)号：US20240301523A1

公开(公告)日：2024-09-12

申请号：US18119885

申请日：2023-03-10

Applicant: Caterpillar Inc.

Inventor： Scott Howard Magner ,  Mircea Dumitru ,  Brian Konrad Loeffler ,  Mohammed Maniruzzaman ,  Yongqiang Li ,  Simon Jiang

IPC: C21D1/10 ,  C21D1/18 ,  C22C38/04 ,  C22C38/44

CPC classification number: C21D1/10 ,  C21D1/18 ,  C22C38/04 ,  C22C38/44 ,  C21D2211/001

Abstract: Disclosed herein is an example track pad having a ground-contacting portion for use in a track-based machine to propel and support the machine across a supporting surface. The track pad may be a track pad that forms a link of a chain forming the track for the track-based machine. The track pad includes a cast body formed of a first alloy steel having a first strength and toughness. The track pad includes a roll path that contacts a roller of the track-based machine. The roll path is hardened through an induction hardening process to achieve a hardness level at a depth of 32 millimeters or more from the surface of the roll path. The roll path is shaped and positioned to contact rollers of the track drive assembly and thereby reduce wear and fatigue on the track pad as a result of contact and force transferred through the roller.