发明名称 |
WELDED STATE MONITORING DEVICE AND METHOD |
摘要 |
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. |
申请公布号 |
EP2221137(A4) |
申请公布日期 |
2017.02.08 |
申请号 |
EP20080843689 |
申请日期 |
2008.10.31 |
申请人 |
Nippon Steel & Sumitomo Metal Corporation |
发明人 |
HASEGAWA, Noboru;HAMATANI, Hideki;MUKAI, Michimasa;YAMAMOTO, Kazuto;MIYAKAWA, Takashi |
分类号 |
B23K13/08;B21C37/08;B21C51/00;B23K13/00;B23K31/00;B23K101/06;G01J5/48;G01N21/71 |
主分类号 |
B23K13/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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