[What is Cryogenic Treatment?]
can you expect?
What is cryogenics?
Cryogenics is the branch of physics that deals with the production and
effects of very low temperatures. Cryogenic processing is a
fascinating and truly spectacular means to increase wear resistance &
life on all metal and some plastics.
What is cryogenic treatment?
Cryogenic treatment of materials is a process for enhancing the
properties of metals and crystalline or partially crystalline
non-metals. Properly cryo-treat components exhibit enhanced wear
resistance, increased fatigue life, somewhat improved corrosion
resistance, and improved dimensional stability.
How Does Deep Cryogenic Processing work?
Research, some quite recent, has revealed three mechanisms at work to
account for the observed property changes in components thermally
cycled in a proper cryogenic treatment process.
First, in hardened ferrous alloys retained austenite is transformed to
martensite producing a more uniformly hard surface (and interior
volume). The more uniform hardness profile is better able to resist
Second, recent research has revealed the production of very fine
carbide precipitates in hardened and cryogenically treated ferrous
alloys. These carbide particles aid in the resistance to abrasive
Finally, all crystalline or partially crystalline materials including
metals, both ferrous and non-ferrous, and non-metals exhibit a strong
stress relief effect after proper cryogenic treatment.
The relief of residual stresses contributes to;
(1) Abrasion resistance
(2) Corrosion resistance
(3) Fatigue life
(4) The reduction of chipping in components subjected to repetitive
(5) Improved dimensional stability.
Cryogenic Processing is not a substitute for
Cryogenic processing will not in itself harden metal like quenching
and tempering. It is not a substitute for heat-treating. It is an
addition to heat-treating. Most alloys will not show much of a change
in hardness due to cryogenic processing. The abrasion resistance of
the metal and the fatigue resistance will be increased substantially.
Cryogenic Processing is not a coating.
It affects the entire volume of the material. It
works synergistically with coatings. You cannot wear cryogenic
processing off a part. It is there for the life of the part unless
that part is subjected to such temperatures that it is brought up to
the austenization temperatures. Unlike coated tools, a cryogenically
treated tool can be sharpened, dressed, or modified. The change
brought about by cryogenic processing is permanent.
The process works synergistically with most coatings. This is because
coatings generally work by decreasing the coefficient of friction and
by preventing metals from galling. Coatings start to fail when the
metal underneath them fails. It is not unusual to find wear particles
with coating on one side and base metal on the other. The coating did
not fail; the base metal under it failed. Cryogenic processing keeps
the metal under the coating from failing while the coating protects
Applied Cryogenics Inc., (ACI) is in the
business of manufacturing cryo plants for the past 25 years. ACI
builds the most efficient cryoprocessing available on the market.
These rugged, vacuum insulated machines process materials at the
lowest total cost of any machine. Being vacuum insulated, their
lifespan is easily five times that of the competition. Although their
initial cost is slightly higher than competitive machines, they
exhibit the lowest overall cost for any machine on the market by a
wide margin. Our process has been verified by research done by the US
Army, Illinois Institute of Technology, Los Alamos National Laboratory
Our cryoprocessors are capable of automatically cycling payloads
between the temperature limits of -300 and +300. Payload temperature
is reduced by use of an internal heat exchanger to eliminate thermal
shock. A microprocessor based industrial grade control is provided for
programming, storage, and execution of complex time/temperature
profiles. The system is capable of unattended running for periods of
several days. A chart recorder provides a permanent record of the
thermal history of each run.