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James högtalare C-Omni Cube

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Marine Hardware
James Standard & James Premium
Page 1
Marine Ready Products
Key Features:
High quality fastener material :
316-SS and -GR.2 Ti CP
Passivated to further improve its natural
corrosion resistance
Fluoropolymer coating to prevent thread
galling, seizing, and enhance corrosion
resistance
Application of Tef-Gel for additional corrosion
resistance
Applications:
Marine audio
Outdoor audio
In a marine environment, speakers will be
exposed to several factors which place them at high
risk including: harsh winds, high humidity, atmospheric
salinity, and direct contact with seawater. Whether
you’re looking for an outdoor system, a sound system
for your boat, a complete distributed audio system for
your oceanside getaway or even a super-yacht, James
Loudspeaker offers the necessary hardware to
withstand harsh environmental conditions and provide
long-lasting marine speaker products.
Selecting the proper hardware material is
essential for long-term corrosion control. As our James
Standard, we provide 316 Stainless Steel fasteners
which have been widely used in marine environments.
Considered the marine grade stainless, 316 Stainless
Steel is the preferred steel for service because of its
greater resistance to corrosion than other grades of
steel. Referring to the chemical composition in Table 1,
the material incorporates about 2 to 3 percent
molybdenum, which increases corrosion resistance
particularly against pitting and crevice corrosion in
chlorides and other industrial solvents. Furthermore,
our 316-SS hardware is passivated in nitric acid after
its production to facilitate the natural formation of a
thin, transparent oxide film that protects the stainless
steel from corrosion.
In addition, we provide optional CP-GR.2
Titanium fasteners as our James Premium.
Commercially Pure (CP) Grade 2 Titanium is used
primarily for its superior corrosion resistance. It resists
pitting, crevice, and stress corrosion cracking in
seawater, marine atmospheres, and a broad range of
acids, alkalis, and industrial chemicals. The corrosion
resistance results from a very thin (~10nm), stable,
continuous oxide layer that regenerates
instantaneously if any oxygen is present. Table 2
presents the chemical composition of CP-GR.2
titanium. Similarly to the 316-SS hardware, our CP-
GR.2 Ti hardware is passivated in citric acid after its
production to further assist its natural corrosion
resistance and extend product life.
All of our marine grade products undergo a
process which protects them against the elements
even under the harshest conditions. To further protect
our hardware from corrosive surroundings, both our
CP-GR.2 Ti and 316-SS fasteners are applied with
FluoroKote#1 coating. A proprietary fluoropolymer
coating that
provides exceptional
corrosion
resistance, a low
coefficient of friction,
consistent
tensioning and
subsequent ease of
installation and
removal. A metallic
base coat, as shown
in Figure 1, is
applied first followed
by an adhesion
Marine Hardware: James Standard & James Premium
Page 2
coat. The adhesion coat creates a chemical bond
between the base coat and the top coat. The top coat,
a heat cured fluoropolymer coating containing PTFE, is
used to seal the two under coatings facilitating the
installation of hardware on to marine speaker products.
The result is thin, continuous, protective film barriers
which resist chipping, spalling, abrasion, galling,
seizing, and a wide range of corrosive environments.
Previously, hot dip galvanized, cadmium or zinc plated
fasteners were considered the standard. However,
these coatings could not withstand the corrosive
surroundings common in many industries. After 2,000
hours of salt spray testing (ASTM B117), fasteners
coated with these conventional methods showed
severe corrosion illustrated in Figure 2. The fastener
coated with FluoroKote#1 withstood these conditions
with no noticeable deterioration. The fluoropolymer
coating was additionally tested in various acidic-based
solutions, where the test duration and results are
represented in Table 3. After 24 hours, the coating
showed no effects of corrosion. Indicating the coating
specifications in Figure 3, one of the benefits of this
coating presents a low coefficient of friction of 0.06–
0.08, which ultimately decreases torque requirements
and significantly reduces thread galling and seizing
problems during installation and assembly.
Additionally, our fasteners receive the highest quality
control where they are checked for cure, thickness,
adhesion, and overall coverage. In recognition of these
efforts, our coating applicator earned the ISO 9001
certification for the application of industrial coatings.
Combined with advanced computer controlled,
automated equipment keeps the coating thickness
precise and extremely uniform.
Upon application of marine hardware onto our
marine speaker products, we additionally utilize Tef-
Gel. Tef-Gel is specifically designed for the marine
environment and serves as a lubricant and essentially
eliminates electrolytes, e.g. seawater, from entering the
interface of metallic surfaces as in Figure 4. The
lubricant contains 40% PTFE powder and 0% volatile
solvents. No silicones or petroleum solvents are used
which can evaporate and would leave voids for
electrolytes to be drawn into creating a galvanic cell.
Although our fasteners are fluoropolymer coated,
additional application of Tef-Gel ensures prevention of
dissimilar metal corrosion if bare metal to metal contact
exists.
To prevent contamination by steel particles on
to fasteners via tool bit contact, our marine products
are assembled utilizing Titanium Nitride tool bits. Our
titanium nitride tools provide high surface hardness to
help penetrate tough materials, significantly reduces
friction between bit and work-piece, and most
importantly ensures no contamination of steel particles
when installing our fasteners.
By understanding the causes and types of
corrosion experienced in marine environments, we
have been able to design and select hardware to
endure harsh conditions throughout its service life.

Produktspecifikationer

Varumärke: James
Kategori: högtalare
Modell: C-Omni Cube

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