Title:
溶接状態監視装置及び方法
Document Type and Number:
Japanese Patent JP4705692
Kind Code:
B2
Abstract:
A system and method for monitoring the molten state for enabling a molten state, butting state, or other state of electric-resistance-welded pipe on-line more accurately than in the past are provided. That is, a mirror 23 provided at a front end side inside a container 21 receives light emitted by the welded parts 5 of the tube-shaped steel strip 1 themselves through heat resistant glass 22 from the side direction and reflects the image of the welded parts 5 of the tube-shaped steel strip 1 in the direction of a relay lens 24 provided at a base end side of a relay lens unit 13. The relay lenses 24 relay the image of the welded parts 5 of the tube-shaped steel strip 1 to a conversion lens 12, then the conversion lens 12 forms that image on the imaging area of a CCD camera 11. Therefore, it is possible to capture the welded parts 5 of the tube-shaped steel strip 1 from the side direction by a resolution in accordance with the resolution of the CCD camera 11 and possible to obtain information of the welded parts 5 of the tube-shaped steel strip 1 more accurately than in the past and on-line.
Inventors:
Noboru Hasegawa
Hideki Hamaya
Sincerity
Kazuto Yamamoto
Takashi Miyagawa
Hideki Hamaya
Sincerity
Kazuto Yamamoto
Takashi Miyagawa
Application Number:
JP2009539164A
Publication Date:
June 22, 2011
Filing Date:
October 31, 2008
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
B23K13/08; B23K13/00; G01B11/26; G01N21/88
Domestic Patent References:
| JP62203680A | ||||
| JP5023870A | ||||
| JP7120406A | ||||
| JP11156434A | ||||
| JP51072346A | ||||
| JP7043209A | ||||
| JP10034354A | ||||
| JP2007093249A | ||||
| JP2007278724A |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Hiroshi Kamematsu
Nakamura Asayuki
Nagasaka Tomoyasu
Takashi Ishida
Tetsuji Koga
Hiroshi Kamematsu
Nakamura Asayuki
Nagasaka Tomoyasu