Acousto-immersion coating and process for magnesium and its alloy
AssigneeNational Research Council of Canada
InventorsBen Li Luan, Joy Elizabeth Gray
Life of this patent
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Abstract
A process for coating an object formed of magnesium or a magnesium alloy comprising the steps of: immersion coating the object in a sonicated bath to form an undercoat and topcoating the object to form a topcoat. When desirable to protect against topcoat failure, the undercoat may be equally noble or more noble than the topcoat. If topcoat failure is not a concern, the nobility of the topcoat relative to the undercoat need not be considered. The process promotes uniform coating of a magnesium and its alloys.
Claims18
A process for coating an object formed of magnesium or a magnesium alloy comprising the steps of:
- immersion coating the object in a sonicated bath to form an undercoat, the sonicated bath comprising an ultrasound bath having a frequency of from 20 to 45 KHz, and
- topcoating the object to form a topcoat, wherein the undercoat is selected to be equally noble or more noble than the topcoat.
A process for coating an object formed of magnesium or a magnesium alloy comprising the steps of:
- immersion coating the object in a sonicated bath to from an undercoat, said sonicated bath comprising an ultrasound bath having a frequency of from 20 to 45 KHz, and
- topcoating the object.
Dependencies are inferred from the claim text.