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Functional
PVD
Year after year, wear
in tools and components result in great losses to the mechanical industry.
PRIREV products and services reduce these losses in a fast and efficient
way.
Fast cycles, low use of consumables and little
maintenance are important requirements in any modern production system.
On the other hand, market needs evolve to an improvement in quality:
• better surface finish
• respect for tolerances
• reduction of defective parts
PVD (Physical Vapor
Deposition) is a thin and very adherent ceramic coating deposited by
highly ionized plasma in a vacuum chamber. Its hardness is more than
double of the hard chrome, has low coefficient of friction and high
oxidation resistance, protects against chemical and thermal attacks,
resists wear caused by adhesion and abrasion, is chemically inert and
bio-compatible.
The use of PVD coatings in cutting tools has experienced an extraordinary
increase, which has been extended to all machining operations: they
are being currently applied to forming tools in an attempt to increase
the working life of punches and dies. These coatings minimize seizure,
allowing faster productions and shorter downtime periods.
In moulds for plastic and rubber, as well as for non ferrous metals (aluminum,
zamac), PVD coatings reduce wear and corrosion, improve the release
and make cleaning easier.
PVD coatings can be applied to most metals, to ceramic surfaces and
to some plastics.
| Advantages |
Effects |
Aplications |
- lower wear
- reduces friction
- avoids seizures
- facilitates release
- allows higher speeds
- reduces or eliminates the need of lubrication
- improves surface finish
- resists corrosion and oxidation
- doesn't affect neither the dimensions nor the finish of the
parts ( 2-6µm)
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- increases tool life
- reduces downtimes and maintenance periods
- increases equipment productivity
- lowers production costs
- improves quality of the finish product;
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- cutting tools
- forming tools
- moulds for plastic
- extrusion dies
- machine and motor components (e.g. bearings, gears)
- medical instruments and surgical implants
- chemical and food industry
- pad printing, paper printing;
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