Title:
溶接点トラッキング修正方法及び溶接点トラッキング修正装置
Document Type and Number:
Japanese Patent JP6943271
Kind Code:
B2
Abstract:
To provide a welding point correction method and a welding point correction device by which timing when a welding point of a rolled material passes a rolling machine is detected with good accuracy, and deviation of welding point tracking of the rolled material can be corrected with good accuracy.SOLUTION: A welding point tracking correction method for correcting deviation of welding point tracking of a rolled material which is rolled in a rolling machine includes: a detection step at which a rolling load of the rolling machine is detected; and a correction step at which the rolling load, which has been detected at the detection step, is differentiated twice with respect to time, a time point, when an absolute value of twice derivative becomes a prescribed threshold or more, is detected as timing when a welding point of the rolled material passes the rolling machine, and deviation of welding point tracking is corrected on the basis of the detected timing.SELECTED DRAWING: Figure 2
Inventors:
Kakeru Yoshida
Tetsumi Hasegawa
Hideyuki Irie
Tetsumi Hasegawa
Hideyuki Irie
Application Number:
JP2019150904A
Publication Date:
September 29, 2021
Filing Date:
August 21, 2019
Export Citation:
Assignee:
jfe Steel Corporation
International Classes:
B21B37/00; B21B38/00; B21B38/08; B21C51/00
Domestic Patent References:
| JP9323111A | ||||
| JP2008307597A | ||||
| JP1321001A | ||||
| JP9295018A | ||||
| JP10058019A | ||||
| JP61269922A | ||||
| JP61082915A | ||||
| JP4028416A |
Foreign References:
| WO2016042948A1 | ||||
| US20090326700 | ||||
| CN108906892A |
Attorney, Agent or Firm:
Sakai International Patent Office