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General DCD Coatings
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Richter
Precision, Inc. is pleased to introduce the Dynamic Compound Deposition
(DCD) coating process: a proprietary low temperature coating process
that synthesizes dry-film lubricant and wear resistant coating compositions.
This process is ideally suited to depositing high-quality tribological
coatings onto assembly/wear components in significant volumes at
competitive pricing.
What is DCD coating?
Dynamic Compound Deposition is based on the principle of in
situ mechanical activation and chemical transformation,
and leads to considerably decreased friction coefficients and increased
durability of the coating layers. Due to the specific conditions
of synthesis, DCD coatings develop micro- and macro-structures that
are well adapted for conditions of severe contact loading. For this
reason, the DCD process is primarily suited to anti-friction, slide-wear,
and high-load applications.
Richter Precision,
Inc. proudly offers the following DCD coating compositions for tribological
applications:
Name |
Composition |
Thickness
(µm) |
Micro-hardness
(HV) |
Coefficient
of Friction |
Oxidation
Temp. (°C) |
Max.
Working Temp. (°C) |
Process
Temp. |
Tribo-Kote™
S |
(Mo,W)S2 |
1
to 3 |
Solid
Lubricant |
0.08
- 0.1 |
500-600 |
600 |
100°F / 38°C |
Tribo-Kote™
S2 |
SiC
/ (Mo, W) S2 |
3
to 10 |
1000-1500 |
0.1 |
500-600 |
300 |
100°F / 38°C |
Tribo-Kote™
S3 |
SiC
/ C-DLC |
3
to 10 |
1500-3000 |
0.1 |
T>400 |
400 |
100°F / 38°C |
|
Tribo-Kote™
S4 |
Carbon
DLC |
0.1
to 3 |
1500
- 2000 |
0.1 |
T>400 |
400 |
100°F / 38°C |
Advantages of the DCD Process:
•
Low temperature process (< 100°F)
• High micro-hardness (800-3000 HV)
• Low Coefficient of Friction (0.1 or less)
• Thin-film layers (.001-.010 mm.)
• Process ideally suited for high volumes
• Suitable for tight tolerances (+/-.0001)
• Relatively fast cycle times |
•
Deposits well onto all metal substrates
• Good corrosion resistant qualities
• Bond strength comparable to PVD
• No post-coating processing required
• Does not dramatically affect surface finish
• No significant geometry limitations
• Masking is possible, as required |
The DCD coating process makes tribological coating of wear components
in high volumes a cost-effective reality. Finally, improved performance
and market advantage can be achieved at an acceptable cost-per-part.
Dynamic
Compound Deposition in Tooling Applications
The deposition
characteristics of the Dynamic Compound Deposition coating process
make it extremely effective when used in conjunction with other
coating processes such as PVD, CVD or TD. Typically, we will deposit
a (Mo, W) S2 DCD coating on top of another
coating: in this way you get the wear and abrasion benefits of the
underlying PVD, CVD or TD coating layer combined with the extremely
low coefficient of friction of the dry-film lubricant layer deposited
with the DCD process.
This combination
works well because PVD, CVD and TD all create varying degrees of
micro-porosity: the DCD coating fills these micro-pores, as well
as bonding to the surface of the coating layer. Even as the much
softer dry-film lubricant layer wears from the surface of the coating,
the DCD coating that has been impregnated into the PVD, CVD or TD
micro-porosity is still acting as an effective dry film lubricant.
These
standard Richter Precision Inc. PVD, CVD and TD processes used in
conjunction with the Mo, WS2 DCD coating have shown dramatic tool
life and performance improvement, especially in metal-forming applications:
Name |
Composition |
Thickness
(µm) |
Micro-hardness
(HV) |
Coefficient
of Friction |
Oxidation
Temp. (°C) |
Max.
Working Temp. (°C) |
Process
Temp. |
Titankote™C3+ S |
CrN/CrC/(Mo,
W) S2 |
3
to 7 |
2000-2200 |
0.15 |
550 |
600 |
700°F /375°C |
Titankote™C6+
S |
AlTiN
/ (Mo, W) S2 |
3
to 7 |
3000-3400 |
0.15 |
660 |
300 |
700°F / 375°C |
Titankote™H+
S |
TiC
/ (Mo, W) S2 |
5
to 15 |
3200-3400 |
0.15 |
440 |
400 |
1925°F / 1050°C |
|
TDkote™
+S |
VC
/ (Mo, W) S2 |
5
to 15 |
3400
- 3800 |
0.15 |
N/A |
400 |
1925°F / 1050°C |
If you are currently coating your metal-forming
tools with PVD, CVD, or TD coating processes, it is time to consider
ways to improve your current level of performance. DCD can take
you to the next level.
If you are currently using no coatings on your metal-forming
tools, then we guarantee that you will be amazed at the improvement
in performance and overall life that these coatings can provide.
With the overall savings generated through reduced scrap, reduced
tooling costs, and increased production rates, you will understand
when we say that you can not afford to use un-coated tools.
Please contact
your Richter Precision Inc. representative for more information.
We would be pleased to discuss how the Dynamic Compound Deposition
(DCD) coating process can help your company. Call Today!
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