Patent · US Expired

Method for heat treating ferrous parts

US4637844A · kind A · utility

14Cited by
1References
6Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJul 8, 1985
Grant dateJan 20, 1987
Priority date
Expiry dateJul 8, 2005

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02P10/25
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

Ferrous parts are heat treated by preheating the part to an elevated temperature, inductively heating the preheated part to an austenitizing temperature followed by quenching and isothermal transformation in a media maintained at a predetermined isothermal transformation temperature.

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