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Knowledge Bank

WIOPEDIA - The WIOTEC® electroplating encyclopaedia


Knowledge from A - Z

H

Hard chrome plating

This is the direct electrodeposition of a thick layer of chromium on various metals (up to several millimeters). This process is used to increase wear resistance, corrosion resistance and hardness for technical purposes. Common electrolytes (sulfuric acid) are composed of chromic acid (250 g/l) and sulfuric acid (2.5 g/l), at a working temperature of 50 - 60° C and a current density of 40 - 70 A / dm². Electrolytes (mixed acid) contain a proportion of chromic acid between 0 and 450 g / l, as well as sulfuric acid (0.35 to 1.05 g / l) and hexafluorosilicic acid (0.3 to 3 g / l). Systems that are free of fluoride but additionally contain methanesulfonic acid correspond to the technical state of the art.

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WIOTEC® Ense GmbH & Co. KG
Auf den Geeren 9-11
59469 Ense-Höingen, Germany

WIOTEC® Arnsberg GmbH & Co. KG
Wagenbergstraße 55
59759 Arnsberg, Germany

Phone
+49 2938 97833-0
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+49 2938 97833-20
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From metal to precious metal
The company WIOTEC® is your specialist for surface finishing and metalworking. In our electroplating shop, which is managed according to the latest environmental standards, we are capable of finishing both small parts and long parts of up to six meters. This makes us one of the leading and most efficient decorative surface coaters in Europe.

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© 2023 - WIOTEC® - ALL RIGHTS RESERVED.


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