Throwing power

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In electroplating technology, throwing power is understood as the ability of an electrolyte to achieve an improved coating distribution despite the uneven current distribution on the workpiece to be coated . A distinction is made between macro and micro scatter.

Macro scatterability
is the ability of an electroplating bath to achieve an almost even layer thickness over the entire surface of the workpiece, including the deeper areas.
Micro-scattering ability
is the ability of an electroplating bath to deposit metal in pores and scratches.

Good macro-scatter is not always associated with good micro-scatter.

A similar ability to micro-scattering is leveling . This is the ability of an electroplating bath to obtain a smoother surface than that of the blank.

literature

  • Surface treatment, metallic and other inorganic coatings. EN 12508 (2000)
  • Nasser Kanani: Electroplating: Fundamentals, Processes, Practice . Fachbuchverlag Leipzig, 2000, ISBN 3-446-21024-5 .