Frog, in particular frog point, for rail crossing or rail switches as well as process for producing same

US4514235A · kind A · utility

Assignee

• Voest-Alpine · AT

Inventors

• Hubert Augustin · Geldern, DE
• Robert Pirker · Zeltweg, AT

Key dates

• Filing date: Sep 12, 1983
• Grant date: Apr 30, 1985
• Expiry date: Sep 12, 2003

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/12965
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

In a steel frog for rail crossings and rail switches, the frog point or, respectively, the surface of the frog being travelled upon by the wheels consists of an age-hardening steel having the composition ______________________________________ C 0.01 to 0.05% Ti 0.1 to 1% Si 0.01 to 0.2% Cr 0 to 13% Mn 0.01 to 0.2% Al 0 to 0.2% Co 0 to 15% B 0 to 0.1% Mo 1.5 to 6% Zr 0 to 0.1% Ni 7 to 20% ______________________________________ The frog is manufactured such that the surface being travelled upon by the wheels is applied by build-up welding onto a base body consisting of nominal rail steel.