We
offer a hard chrome plating service using Chromclad 2500. Chromclad
2500 is a high efficiency hard chrome system that helps eliminate
the need to mask or stop off the substrate and which plates
upto four times faster than conventional systems to produce
an extremely hard (1100-1250HV) microcracked deposit with superior
wear and corrosion resistance.
Overview: Hard
chrome plating deposits are widely used for components that
require hard, abrasion resistant surfaces or for
building up of undersized and worn parts. The value of
chromium
for
such purposes lies in its hardness, resistance to abrasion,
passivity of surface, and its 'anti-seize' non galling properties
when applied to rotating or reciprocating parts.
Tanks: We
offer tank sizes up to 3' x 2' x 2.5'.
Hardness: Hardness
is 1100-1250HV.
Thickness: Standard
thickness is 0.13mm. Maximum thickness achievable is 0.3mm
- 0.4mm after which the coating becomes brittle. Surfaces can
be built
up with nickel to achieve a thicker deposit and then coated
with hard chrome. A hard chrome deposit on nickel should be
a minimum of 13µm for adequate wear resistance.
Applications: Typical
applications include:
- Gauges: Chromium
is widely used for face gauges
- Hydraulic/Pneumatic
Cylinders: Hard chrome is used for hard wearing
precision cylinder rods
- Cutting
Tools: Thin deposits of chromium (5-12µm)
are deposited to increase hardness (although cutting edge
is ground back to steel to increase bite) and to reduce
friction in the flutes caused by the passage of the shavings
in passage
- Metal
Forming & Drawing Dies: Chromium plated die
faces increase tool life as well as allowing for rechroming
of scored & worn dies
- Machine
Parts: Piston rings, cylinder liners, crankshafts
for aero engines and gudgeon pins etc are deposited with
a thickness of 0.12mm as standard to improve their wearing
qualities and to resist corrosion
- Salvage
Of Worn & Faulty Machined Parts: Rechroming
is often built into the design of components subject to
wear that might otherwise be discarded. It is also useful
for repairing a hole drilled out of alignment, a shaft
ground below size or a mark left by a tool slip
- Moulds: Plastic
moulds are often faced with chrome which affords protection
against chemical attack, resists abrasion by the moulding
powder and facilitates removal
- Printing
Applications: Hard chrome is often used in the
facing of printing plates and cylinders
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