| 摘要 |
PURPOSE: A corrugated steel pipe manufacturing method is provided to improve convenience and efficiency of work using corrugated steel pipes by simplifying the connection structure of the corrugated steel pipes. CONSTITUTION: A corrugated steel pipe manufacturing method comprises steps of: bending a steel plate(10) to form a longitudinal bent groove(11) in the center of the steel plate, repeating rolling processes to press the bent groove to be flat(S20), pressing the bent groove from the bottom to form a corrugated part(S30), rolling the steel plate into a pipe, and cutting ends of the corrugates steel pipe.
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