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INDUSTRIAL
HARD CHROME PLATING

ELKAP has been presenting Hard Chrome Plating service to variety of big or small scale firms through its valuable experiences and know-how knowledge which have been gaining since 1984.
FEATURES

Since hard chrome improves specifications of the machine parts, it is widely used in the industry.

. Extreme hardness ( 950 - 1050 HV )
. Low coefficient of friction
. High wear resistance
. Never lose brightness in atmospheric condition
. Good corrosion resistance
. Very good bonding
. Can be well ground, honed, lapped, polished
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CAPACITY

 

When using conditions, technical requirements and cost are taken into consideration, pieces are plated up to 1000µm thickness. But in some special applications, plating thickness can be over 1000µm.
Hard chrome plating applications are made in vertical bath which has Ø500x4000 mm workpieces capacity. In addition, some other applications are made in other horizantal and vertical baths which have different dimensions. On the other hand more complex parts like moulds and tubes are plated in special baths.

APPLICATION ADVANTAGES

Hard chrome plating is applied to improve life time of new machine parts and is also used to repair worn, damaged or mismachined worthy machine parts.

 

. Parts are not warped at low operation temperature ( 50-55 ºC)
. Can be stripped and plated on the steel substrate several times
. Very small to very large workpiece

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INDUSTRIAL APPLICATIONS

 

Applications are generally made in fiber, synthetic yarn, textile, steel, food, steel cord, tire, plastic, automotive, petrochemistry, energy, paper, synthetic fertilizer, printing, defence, machinery industries.

 

. Paper Rolls
. Textile Cylinders
. Turbine Shafts
. Hydroulic Pistons
. Plastic and Tire Moulds
. Mechanical Seal
. Guide Rollers
. Feed Rolls
. Drive Rolls
. Plungers
. Deflactor Rolls
. Printing Rolls
. Special Engineering Applications

 
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Hard chrome plating applications contain materials like steel alloys, stainless steel, cast iron and non-ferrous metals like aluminum, copper, brass, bronze and coated surfaces. Especially, hard chrome plating of aluminum and alloys cover significant part of our occupation.

 
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NODULAR HARD CHROME PLATING

 

Texture of nodular hard chrome plating is formed by microscopic nodules. Dimensions of nodules are important for obtaining the expected roughness value and nodular hard chrome is especially used for synthetic yarn and fiber production.
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Hard chrome plated parts can be used with their simple shape and they can also be used with ground and polished shape according to specification. In certain conditions, through the blasting workpieces more roughness surfaces are obtained.

 
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ELECROPLATING LABORATORY

 

High quality electrolyte which presents rapid high hardness to plates is used in hard chrome baths. Plate structure and productivity are checked regularly.

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