Hardbanding material and process
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
May 9, 2002
app pub date -
Oct 10, 2001
filing date -
Oct 10, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The present invention describes a hardbanding material and a process for producing a hardbanding material which greatly extends the life of tool joints and sections of steel pipe to which the material is applied. Granules of tungsten carbide are dropped into a melt puddle which is formed when a low carbon chrome based alloy is welded to an outside surface of a drill pipe. The tungsten carbide has a size ranging from about {fraction (25/40)} to about {fraction (40/60)} mesh, with a hardness greater than 3000 HV. Alternatively, the tungsten carbide has a size of {fraction (40/60)} mesh with a hardness of greater than 1700 HV.
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