Process for annealing steels
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 3, 1984
Issued Date -
N/A
app pub date -
Sep 1, 1981
filing date -
Nov 9, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for the annealing of hypoeutectoid steels wherein a steel is rapidly heated to a temperature above the upper transformation temperature of the steel to convert the steel to austenite and carbides, followed by cooling of the steel. The rate of heating of the steel is such as to cause dissolution of most of the carbides in the austenite thus formed, thereby leaving small particles of undissolved carbide in an amount sufficient to serve as nuclei for the precipitation of upper transformation products on cooling. Steels processed in accordance with the process of this invention are characterized by improved ductility and toughness as well as good machinability characteristics.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully