Annex XV report PROPOSAL FOR IDENTIFICATION OF A ... - ECHA

ANNEX XV – IDENTIFICATION OF SVHC
Alternatives to Chromium-VI-compounds
in
metal surface finishing
Chemical substances used for surface treatment
Readiness for marketing /
Commercial use
Additional information, examples of application
VII. Nanocrystalline
Coatings
VIII. Vacuum Deposition
technology
• sputter deposition of carbon with or
without bombardment by an intense flux
of ions (physical vapour deposition or
PVD)
• deposition from an RF plasma, sustained
in hydrocarbon gases, onto substrates
negatively biased (plasma assisted
chemical vapour deposition or
PACVD)
a) Hybrid Polymer Coating Materials (silicone,
organic polymers, glass/ceramic Al 2 O 3 ,
TiO 2 ; ZrO 2 ) => ORMOCER ®
Other sol-gel coating-systems
• Nanocomposite 1, Silan-Al
• Nanocomposite 2, Silan-Al-Polymer
• Nanocomposite 3, Silan-Al/Zr
• Nanocomposite 4, Silan-Al/Zr-Polymer
b) alloy coatings:
• cobalt-phosphorus (Co-P)
• Co-P metal matrix combined with the
hard particulates (such as Cr 3 C 2 or SiC)
dispersed throughout
• Co-P/diamond coatings
Alloys of unknown nature (but alloys contain
no Cr III , Cr VI , Ni, Cu)
a) no information available yet
b) just now becoming commercially available
The Chrom-Optics ® process has successfully
passed numerous tests by the automotive
industry, the furniture industry and
even the sanitary industry.
the manufacture of textile machines, hydraulic
aggregates and optical equipment.
c) A wide variety of objects are now being
coated, ranging from small items, to large
dies and moulds. The rapidly expanding
uses of the DLC films developed by the
hybrid technique includes:
• decorative/low friction coatings
• coating of tools for the high speed machining
of aluminium and copper alloys
• ceramic washers in mixer taps
• guides in textile processing machines
• punches/dies
• seals
• cutting taps
a) very good corrosion protection for several
industrial uses
Substrate: aluminum, magnesium, steel,
zinc, copper etc
Application examples: no data available
b) The coating can be applied through electrodeposition,
vapor deposition, or spray
conversion processing application in automotive
and aeronautic, e.g. Hard TriCom
(It consists of a cobaltphosphorous metal
alloy matrix with hard particulates uniformly
dispersed within it). Engineering:
thickness can be achieved for both original
equipment manufacturing (OEM) or overhaul
and repair (O&R).
The Chrom-Optics ® process is based on new
findings about chemical reactions which enable
a new type of coating system.
• a corrosion resistant composite is produced
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