PVD Coating (Ion Coating) Technology
and Equipment: Frequently Asked
Questions
Q: What are the
attributes of coatings generated through PVD (Physical
Vapor Deposition) technology?
A: Coatings
produced via PVD technology exhibit several notable
attributes, including elevated hardness, superior wear
resistance (characterized by a low friction coefficient),
exceptional corrosion resistance, and chemical stability.
These properties contribute to an extended lifespan of the
coating layer. Additionally, the application of this
coating significantly improves the aesthetic appeal of
the workpiece.
Q: What substrates
can PVD be deposited on?
A: PVD coatings can be directly
applied to stainless steel and hard alloys. However, for
zinc alloys, copper, iron, and other die-cast components,
it is necessary to perform a chemical electroplating of
chromium prior to the application of PVD coating to ensure
compatibility.
Q: What varieties
of coatings can be generated through Physical Vapor
Deposition (PVD)?
A: PVD coating
technology represents an environmentally sustainable
surface treatment approach capable of producing
micron-level coatings without generating pollution. This
method can facilitate the preparation of a diverse range of
coatings, including single metal films (such as aluminum,
titanium, zirconium, and chromium), nitride films (such as
titanium nitride [TiN], zirconium nitride [ZrN], chromium
nitride [CrN], and titanium aluminum nitride [TiAlN]),
carbide films (including titanium carbide [TiC] and
titanium carbonitride [TiCN]), as well as oxide films (such
as titanium oxide [TiO], among others).
Q: What is the
thickness of the PVD coating layer?
A: The thickness of
the PVD coating layer is measured at the micrometer scale,
typically ranging from 0.1μm to 5μm. Specifically, decorative coatings
generally fall within the range of 0.1μm to 1μm. This characteristic allows the
coating to enhance various physical and chemical properties
of the workpiece surface without substantially altering the
original dimensions of the workpiece. Consequently, the
dimensions of the workpiece remain essentially unchanged,
thereby negating the necessity for any additional
processing following the application of the
coating.
Q: What colors of
coatings can be produced through PVD coating?
A: The PVD coating
process currently allows for the production of a variety of
colors, including deep gold, light gold, coffee brown,
bronze, gray, black, dark gray, and multicolor, among
others. By meticulously regulating the pertinent parameters
throughout the coating process, we can achieve specific
color outcomes. Upon completion of the coating, we employ
specialized instruments to measure the color values,
thereby enabling a quantitative assessment to ascertain
whether the coated color aligns with the specified
requirements.
