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US 12,753,490 B2Granted
Method for forming robust hydrophobic surfaces on steel workpiece
AssigneeHong Kong Applied Science and Technology Research Institute Company Limited
InventorsSong Wang, Chen Xu, Tianyu Weng
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Abstract
The present invention discloses a method for forming robust hydrophobic surfaces on a steel workpiece. First, a roughing process is performed on the steel workpiece by removing part of the steel from the surface, so as to form concaves. Second, a depositing process is performed to deposit hydrophobic layers into the concaves, thereby forming the steel workpiece with robust hydrophobic surfaces, exhibiting good abrasion resistance.
Claims22
A method for forming robust hydrophobic surfaces on a steel workpiece, comprising:
- roughing the steel workpiece by removing part of the steel from the surface, so as to form concaves;
- and
- depositing hydrophobic layers into the concaves, thereby forming the steel workpiece with robust hydrophobic surfaces, exhibiting good abrasion resistance, wherein the roughing process furthers comprises:
- performing a sandblasting treatment to the steel workpiece, wherein the sandblasting treatment projects a stream of air mixed with inorganic particles, so as to form a micro-/nanoscale surface roughness;
- performing an electropolishing treatment to the sandblasted steel workpiece, wherein the electropolishing treatment uses the sandblasted steel workpiece as an anode;
- and
- performing an etching treatment to the electropolished steel workpiece, wherein the etching treatment uses an etching solution containing ferric chloride.
4 more elements
Dependencies are inferred from the claim text.