Question

Anodic coating on steel is given by *
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Answer 1

Answer:

Surface Preparation of Metals

Anodic coatings include chromic, sulfuric, and phosphoric acid types. ... In short, the process involves immersing the part in a 9–12% solution of phosphoric acid at 19–25 °C at anywhere from 9 to 16 V under DC for 20–25 min.

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Answer 2

Answer:

Anodic coatings include chromic, sulfuric, and phosphoric acid types. ... In short, the process involves immersing the part in a 9–12% solution of phosphoric acid at 19–25 °C at anywhere from 9 to 16 V under DC for 20–25 min.

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