Radiant tube apparatus and method for manufacturing same
AssigneesPosco, Research Institute of Industrial Science & Technology
InventorsWon Ha, Mok Young Lee
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Abstract
The present invention relates to a radiant tube apparatus disposed in a heat treatment facility to perform a heat treatment of a strip and a method for manufacturing the same. The radiant tube apparatus includes a tube having an internal pipe, wherein the tube has a first continuous pattern and a second continuous pattern extending side by side and spaced apart from each other at a predetermined distance on a surface, and, in each of the first continuous pattern and the second continuous pattern, a plurality of unit patterns having a predetermined height from the surface are connected to each other in a longitudinal direction.
Claims4
A radiant tube apparatus comprising:
- a tube having an internal pipe,
- wherein:
- the tube has a first continuous pattern and a second continuous pattern extending side by side in a longitudinal direction and alternatively positioned in a transverse direction on a surface of the tube,
- in the first continuous pattern, a plurality of first unit patterns having a first predetermined height from the surface are sawtooth-shaped and are connected to each other in the longitudinal direction of the tube, causing the first continuous pattern to have a zigzag shape,
- in the second continuous pattern, a plurality of second unit patterns having a second predetermined height from the surface are linear and are connected to each other in the longitudinal direction, causing the second continuous pattern to have a bar shape, and
- the first predetermined height and the second predetermined height are 3 mm or greater and a height/thickness ratio of the first unit pattern and the second unit pattern is 1.0 or greater.
Dependencies are inferred from the claim text.