Title:
WELDING METHOD OF STRIP
Document Type and Number:
Japanese Patent JP3405116
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce the generation of width deviation by aligning centers of both strips in the case of welding the tail end of a preceding strip and the tip end of a succeeding strip in the continuous processing line of the strip.
SOLUTION: Respective centers of the preceding strips 1 and the succeeding strip in the position are measured with position detecting sensors 4a, 4b, 5a, 5b provided in both sides sandwiching the preceding strip 1 and the succeeding strip 2 in the downstream side and the upstream side of a welding machine 3. Next, both strips are transferred the prescribed distance in the length direction, centers of both strips in the transferred position are measured with position detecting sensors, and centers of the preceding strip 1 and the succeeding strip 2 in the welding position are externally inserted and estimated from centers in respective estimated positions in the length direction of both strips. And the width directional positions of both strips are regulated with side guides 6a, 6b, 7a, 7b provided in the downstream side and the upstream side of the welding position so that centers of both strips in the estimated welding position are aligned, thereafter the end parts are welded.
Inventors:
Makoto Nakajo
Yukihiro Okada
Masaaki Miyauchi
Yukihiro Okada
Masaaki Miyauchi
Application Number:
JP8917097A
Publication Date:
May 12, 2003
Filing Date:
April 08, 1997
Export Citation:
Assignee:
Nippon Steel Tube Co., Ltd.
International Classes:
B23K37/04; B21B15/00; (IPC1-7): B23K37/04; B21B15/00
Domestic Patent References:
| JP596398A | ||||
| JP61132269A | ||||
| JP50121143A |
Attorney, Agent or Firm:
Yasuo Ishikawa
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