Surface treatment method for metal material and mold treated by surface treatment method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 9, 2017
Grant Date -
Feb 20, 2014
app pub date -
Apr 12, 2012
filing date -
Apr 28, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A surface treatment method for a metal material is provided which includes applying diluted sulfuric acid to a surface of the metal material that is composed primarily of iron, performing a heat treatment on the metal material in the presence of at least one of CO, CO2 and organic gas under nitriding conditions under which a nitrided layer is formed in a superficial layer of the metal material after the application of the diluted sulfuric acid to form a carbon film which includes at least one of carbon nanocoils, carbon nanotubes and carbon nanofilaments on a surface of the nitrided layer of the metal material.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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