Heat Treating Hintssm
© 1995-2009
The Herring Group, Inc.
Heat Treating Hintssm is one of our ways of sharing
knowledge with the Industry we love. This is a changing series of technical
articles which will be updated every month, and is designed to inform and
educate. We cover a wide range of subjects extracted from our vast library
of technical knowledge.
“The Heat Treat Doctor” presents…
Technology
Trends in Vacuum Heat Treating - Part Three
Part Three
of this three part series focuses on new technologies and future
developments in vacuum heat-treating. Technologies
include such areas as rotational compression brazing of rocket
engine nozzles, beta annealing of aerospace alloys (BASCA Process),
low-pressure vacuum carburizing and carbonitriding and high temperature
vacuum sintering/hardening. Looking forward, critical technologies
in the biomedical, aerospace, electronics, optical, and automotive
industries will take advantage of these energy saving and environmental
(green) friendly technologies.
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the Adobe PDF to learn more.
Peak Shaving
Natural gas is a vital commodity that is at the heat of most heat
treat processes. Yet do we really understand what makes up this
fuel, how
it is changing based on supply and demand pressures and how it
is and will be delivered to us? Peak shaving is explained, the
properties of aerated propane presented and control issues discussed
in such a way as to allow the average heat treater to understand
what he must do to compensate for these changes over time.
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Adobe PDF to learn more.
Heat Treatment of Titanium and Titanium Alloys
Titanium usage
is increasing in part due to the demands of new aircraft and there
is renewed interest in learning
about the various heat-treating processes for these titanium alloys.
In addition, the practical considerations needed to control process
and equipment variability in real world applications is presented.
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the Adobe PDF to learn more.
Ideal Diameter
Ideal diameter
is an excellent means of comparing the relative hardenability
of two materials as
well as determining if it is possible to harden a particular cross
section (or ruling section) of a given steel. DI values are discussed
from the standpoint of hardenability, grain size and quench severity.
A method for calculating DI values is also presented and explained.
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the Adobe PDF to learn more.
Generic and practical information is presented on
this Website and in these downloadable files. It is not intended to replace or supplement
federal, state, and local codes, government standards, insurance requirements,
company policies and procedures, or common sense. In addition, all equipment
manufacturers’ instructions and operating and maintenance manuals
should always be thoroughly read and followed. Further, personnel training
should be provided unequivocally to everyone who will be associated with
operating such equipment. It is the responsibility of the individual downloading
this information to pass along these and other warnings as appropriate
prior to the use of the material. The Limit of Liability Statement found
elsewhere on this Website applies to this information.
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