
CoolTech Industry,
specialist in Deep Cryogenic Treatment (DCT), offers,
productivity improvement extended lifespan
cost saving
benefits to your business and the
circular economy
Contributes to sustainable production and the circular economy



Complementary to the hardening and annealing process
Life time improvement
Changes the inner structure through a thermic process.
DCTs features
Processability
After DCT the material retains its "new" features forever
Deep cryogenic treated material can be processed without any adjustment to the production process
Environment
No use of chemicals or oils
No extra cleaning necessary before treatment
DCT process is low on energy
Longer life time = less use of natural resources!
What DCT offers



Improvement of abrasion resistance
Two metallurgic parameters govern the wear and tear of tools:
1. The transformation of retained austenite into martensite.
2. The structure and formation of so-called secondary carbide.
The DCT process disperses secondary carbide in a fine grain structure and distributes it more evenly throughout the workpiece. The lower the treatment temperature, the greater secondary carbide dispersion.
With hard metals such as tungsten carbide, we can see that DCT has a clear effect on the internal stress of the material. The binding agent naturally has a tensile stress. This tensile stress will be turned into compression stress by the DCT process. As a result of this change, the tungsten particles are retained better by the binding agent, escaping less easily.
Dimension stability
The DCT process stimulates the process of converting retained austenite into martensite, making the material dimensionally stable.
The conversion of retained austenite into martensite has consequences for the hardness of the material. Practice and research show that this differs per type of metal.


Increase of Conductivity
The DCT Multi stage process increases the thermal and electricity conductivity by 3 - 4 %.
Increase of HCF,
(High Cycle Fatigue)
Tests have shown that the CoolTech DCT Multi stage process increases high cycle fatigue of spring steel. It realizes an improvement of 10-15% compared to non-DCT treated spring steel
Reduction corrosion formation
During the last decade interest in deep cryogenic treatment (DCT) has grown because of successful new applications. The use of DCT treatments has a positive effect of corrosion reduction of carbonized steel, stainless steel and other materials.
For example, clients in the food processing industry, make use of DCT, not just to increase the lifespan of tools and reduce the effects of wear and tear, but also to improve their corrosion resistance. This constitutes a significant additional saving.

Reduction of stress
During the production of workpieces, components or tools, the thermal and mechanical processes create stress in the material. DCT strongly reduces stress in the material. DCT is commonly used on workpieces made of aluminium. Because it reduces stress in the workpiece, it prevents scrap of produced parts.
CoolTech treats on a regular basis Aerospace components
Process of Deep Cryogenic Treatment


With the selected programme the temperature is slowly reduced to around -180 °C. During the 15 to 24 hour process, the temperature may be
increased or decreased slightly at times to achieve the best results.
At the end the material will be returned to room temperature.
Depending on the material to be treated and any demands
of the client, it is also possible to increase the temperature up to +150°C for
a certain amount of time.
The material to be treated will not touch liquid nitrogen. We guarantee that the workpiece will not get a thermal shock.Thanks to the computer- guided and temperature-controlled process we can also guarantee a high degree of precision and repeatability.
*In cooperation with international research institutes and material suppliers, CoolTech has developed various programmes to achieve optimal DCT results for various materials.
Automotive
Can Industry
Agriculture
Pumps & Valves


Plastics
Injection molding
Examples of industries we are active in

OEM

Automotive

Agriculture

Energy

Machine construction

Aerospace

Injection Molding

Tooling

Food

Traffic & Transport

Recycling

Can Industry

Pumps & Valves

Paper & Corrugated

Forestry
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Some examples of proof DCT parts in practice
.
Gear hobbing
metal: PM+HSS hobs with AJCrN coating
Increase of lifetime
With DCT: + 40 % more parts
before re-sharping


Turning of cement steel
hard metal inserts coated with cvd
Increase of lifetime
The number of manufactured parts with a sharp edge increased from 17 to 25
Performance of spring
metal: spring steel
Increase of lifetime
Standard : 800.000 cycles
With DCT: 1.200.000 cycles


Tube cutting of steel tubes
metal: HSS incl. TiN saw disc
Increase of lifetime
Standard : 4000 cuts
With DCT: 8000 cuts
Hot forging of steel
Forging die 1.2344
Increase of lifetime
Standard 1430 parts average
With DCT 3550 parts before re-work


Steel extrusion die 1.4718
valves for automobile engines
steel 1.2365
Increase of lifetime
Average more than doubled
Die and punch cutting of magnetic steel sheets for electrical motors
Vanadis 10
Increase of lifetime
Standard : 100 %
With DCT: + 40 % more parts


Compaction of steel powder for sintering parts
HSS punch
Increase of lifetime
lifetime doubled
Chain tree saw
Increase of lifetime
trippel before re-sharping


Knives for abattoir
metal: 1.3343
Increase of lifetime
reduction of corrosion,
triple lifetime in use
Die and moulding parts
Increase of:
Dimension stability, no grow of material
wear resistance
better release of material


Broaching tools
metal: powder metal HSS
Increase of lifetime
Significant according to the end-user
(NDA with user)
Knives for slitting cold working steel
Increase of lifetime
Standard 6.116 meter avarage
after DCT 14.217 meters average
before re-sharping


Welded union between CK15 and DD11
Copper alloy CuCoBe
Increase of lifetime
Standard 300 numbers of welding
With DCT1200 numbers of welding
Cutting and calibration of rings for bearing
M2 calibration punch
Increase of lifetime
standard number of punches 150.000
With DCT 380.000


audio cables high end
Cupper. silver and or gold
Increase of
Improvement of conductivity
and sound
metal wire cutting by friction
blades from ASP2030
Increase of lifetime
Standard 8,000 cuts
With DCT 24,000 cuts


Aerospace, Aluminium parts
Reduction of stress
I
Above examples has been established by AZTERLAN Metallurgy Research Centre, Spain and CoolTech Austria in cooperation with their customers in France, Spain, Austria, Germany Belgium and the Netherlands