Method of manufacturing a metal column
AssigneeKorea Institute of Science and Technology
InventorsJi Won Lee, Soo Yeol Phyo, Sun Choi, Sung Choi
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Abstract
Embodiments of the present disclosure provide a method of manufacturing a metal column using 3D printing technology. The method of manufacturing a metal column includes steps of: creasing a 3D-CAD design for printing the metal column; printing the metal column; pretreating the inner surface of a channel inside the metal column at low temperature; and coating the inner surface of the channel with a stationary phase so that the metal column is capable of separating a gas mixture into components.
Claims11
A method of manufacturing a metal column using 3D printing technology, the method comprising steps of:
- creating a 3D-CAD design for printing the metal column;
- printing the metal column;
- pretreating an inner surface of a channel inside the metal column;
- and
- coating the inner surface of the channel with a stationary phase so that the metal column is capable of separating a gas mixture into components,
- wherein the step of pretreating the inner surface of the channel comprises steps of:
- allowing HCl to flow into the channel by pressurizing the HCl with N2 gas, and washing the channel with distilled water;
- and
- deactivating the inner surface of the channel by coating the inner surface of the channel with a perhydropolysilazane (PHPS) solution flowing into the channel.
Dependencies are inferred from the claim text.