Hard anodizing
sulfuricchromicsulfo-tartaric

Hard anodizing - Rohde AG - sulfuric / chromic / sulfo-tartaric
Hard anodizing - Rohde AG - sulfuric / chromic / sulfo-tartaric
Hard anodizing - Rohde AG - sulfuric / chromic / sulfo-tartaric - image - 2
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Characteristics

Type
hard, sulfuric, chromic, sulfo-tartaric
Type of substrate
titanium
Applications
industrial, medical, for the construction industry, for the food industry, for robotics
Production method
medium series, large series, small series, individual
Other characteristics
with coloring

Description

Loose Bulk Goods Small bulk goods of aluminium, which are not stackable (e.g. rivets, screws, lathe-cut parts) can be anodized as "loose goods” in a similar manner like at barrel galvanizing. However, since the anodized layer has a very high electrical resistance and acts as an insulator, anodizing in a rotating drum is not possible. Aluminum small parts must therefore be clamped in suitable devices as bulk material and can then be anodized and optionally dyed in a dip dyeing process. Due to this type of processing, however, visible contact points are inevitable, especially in the case of colored articles. If these bother, they must - as with the AI ​​rivets shown here - be sorted out for rework. Depending on the requirements and geometry of the parts, this results in a reworking rate of approx. 10-20%. Despite the sorting work, however, this method remains far less expensive than individual processessing. In addition, since small holes can not stick together (as possible when painting), it is not replaceable for many applications.

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.