Patent · US Active

Nano-pearlite rail and process for manufacturing same

US10113219B2 · kind B2 · utility

0Cited by

7References

1Claims

0Family size

Assignee

YANSHAN UNIVERSITY · CN

Inventors

Fucheng Zhang · Laishui, CN
Bo Lv · Shanghai, CN
Shuo Liu · Tangxia, CN
Zhinan YANG · Qinhuangdao City, CN
Mingming Wang · Shandong, CN
Yangzeng Zheng · Laishui, CN

Key dates

Filing date	Mar 23, 2015
Grant date	Oct 30, 2018
Priority date	—
Expiry date	Nov 14, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC21D2211/009
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A nano-pearlite rail and a process for manufacturing the same wherein the rail has excellent mechanical properties, including a tensile strength of no less than 1300 MPa, a yield strength of no less than 1000 MPa, a hardness of HRC 44-47, and an elongation of no less than 10%, as well as excellent wear resistance and fatigue resistance, and is particularly suitable for applications in heavy-haul railways, especially for the railway segments having a sharp turn, and for a wing rail in a bainite steel combined frog.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.