CLASSIFICATION
Electrolizing™
is a precisely controlled, thin dense chromium coating. It is extremely
hard (72-74 Rc), non-magnetic, and it has a very low coehficient
of friction. The coating is
uniformly
deposited
on metals using a proprietary process developed by The Electrolizing
Corporation of Ohio. The coating increases wear resistance, reduces
friction, prevents galling and seizing and minimizes corrosion.
APPLICATION
Unless
otherwise specified, Electrolizing™ is applied directly to the base
metal without an inter-mediate coating. It is applied following completion
of all basis metal processing, including machining, brazing, welding,
heat treating and stress relieving.
SURFACE
QUALITY
Application of Electrolizing™ results in a smooth, fine-grained deposit that
is uniform in thickness and appearance. The surface is free of blisters, pits
nodules and porosity. There is minimal edge buildup.
THICKNESS
Electrolizing™
can be applied with great precision and consistency. Each part drawing
should specify the coating thickness dimension and tolerance. Consult
one of our Application Engineers to establish the proper coating
thickness and tolerance. The practical coating range for Electrolizing™
is: 0.00005” to 0.0006” (1.28µ to +15.38µ). Depending upon the thickness
specified, and the part’s geometry, the following thickness
tolerance can be maintained: ± 0.0001”. Coating thickness
is measured, and can be certified, using state-of-the-art fluorescence
X-Ray technology. For thicker applications
and special conditions, please consult one of our Application Engineers.

ADHESION
Devices
can be repeatedly bent and twisted without Electrolizing™ chipping,
flaking or otherwise separating from the stainless steel
surface.
HARDNESS
Electrolizing™
significantly increases the surface layer hardness of uncoated steel. Hardness
of the coating, as applied to laboratory samples, is Rc72.
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COVERAGE & SURFACE FINISH
Critical
surfaces to be covered with the Electrolizing™ coating, and areas
that are not to be covered, should be clearly indicated on the part
drawing. To allow most economical processing, optional areas of the
part should also be indicated. The Roughness Average (Ra) of Electrolizing™,
when measured in accordance with ASME B 46.1-1995, will not significantly
vary from the Ra of the part prior to coating. Internal and external surfaces of virtually all shapes and configurations can be uniformly
coated. Review specific requirements with one of our application engineers.

PROCESSING
TEMPERATURE
During
cleaning and coating, the temperature of parts does not exceed 212°
F (100° C).
EFFECT ON BASIS METAL STRENGTH
Tests of tensile and fatigue properties are conducted monthly. Reports
are kept on
file.
ABRASION & WEAR
RESISTANCE
Electrolized specimens are tested in accordance with FED-STD-141, Method 6192.
Using the Taber Abrasion Tester with CS-10 wheels, each specimen is subjected
to a 1,000-gram load. After 5,000 cycles, the wear index will be less than 1.2
over an average of three tests. The wear index is based on the Weight-Loss Method.
BASIS
METALS
All
grades of stainless steel can be processed. Electrolizing™
can also be applied to most ferrous metals, and some nonferrous
metals, such
as copper and aluminum.
OPERATING
TEMPERATURE
The coating’s maximum operating temperature is approximately
1600° F (710° C). Time-at-temperature parameters should
be reviewed with
The Electrolizing Corporation of Ohio prior to specifying
or
testing Electrolizing™. Oxidation begins at approximately
1100° F (430° C). Diffusion occurs at 1650° F (740°
C).
ORDERING
When
submitting parts for processing, clearly specify the
basis metal designation, required Electrolizing™ thickness
and
tolerance, and an accompanying
part print that delineates coverage: critical surfaces
to be covered by Electrolizing™, areas not to be covered,
and
optional areas. To achieve optimum performance and
cost-effectiveness, all coating requirements should
be reviewed with The Electrolizing
Corporation of Ohio prior to processing.
PACKING & SHIPPING
For
maximum protection against damage and corrosion prior
to and after processing, all parts must be properly
wrapped, preserved and shipped
in suitable containers. Parts need to be free of scale,
rust and corrosion prior to coating. We can provide
custom
packaging to customer specifications, so that the product
is shipped
ready for use.
CERTIFICATION
Certification of compliance to specifications is available upon request.
QUALIFIED
SOURCE
Electrolizing™ is
a proprietary coating and process that is only available from The Electrolizing
Corporation of Ohio. |