Title:
METHOD AND DEVICE FOR CUTTING STEEL FRAME
Document Type and Number:
Japanese Patent JP2019209336
Kind Code:
A
Abstract:
To provide a method and a device for efficiently and reliably cutting a steel frame.SOLUTION: A cutting method includes cutting a part of a cutting surface by positioning a cutting torch 50 at a position separated in a direction along the cutting surface relative to a steel frame 10A held by a holding device and moving the cutting torch 50 in a first feed direction orthogonal to a supply direction from a cut starting position to a first cut finish position while applying a flame in the supply direction along a cutting surface from a burner 52 of the cutting torch and supplying cutting oxygen, and cutting an uncut part by moving the cutting torch 50 in a second feed direction opposite to the first feed direction from a first cut finish position after stopping the cutting torch 50 at the first cut finish position.SELECTED DRAWING: Figure 6
Inventors:
YAMAZAKI TAKANORI
YAMASHITA KOICHI
HOSAKA YOSHINOBU
FUJITA TSUGUTO
YAMASHITA KOICHI
HOSAKA YOSHINOBU
FUJITA TSUGUTO
Application Number:
JP2018104633A
Publication Date:
December 12, 2019
Filing Date:
May 31, 2018
Export Citation:
Assignee:
KOBELCO CONTSTRUCTION MACHINERY LTD
International Classes:
B23K7/00
Domestic Patent References:
| JPS51137650A | 1976-11-27 | |||
| JPS62196853U | 1987-12-15 | |||
| JP2005002688A | 2005-01-06 | |||
| JP2012172363A | 2012-09-10 | |||
| JP2015227535A | 2015-12-17 | |||
| JP2007146571A | 2007-06-14 |
Attorney, Agent or Firm:
Etsushi Kotani
Masataka Otani
Muramatsu Toshiro
Masataka Otani
Muramatsu Toshiro