CN1200971A - 开裂负压管道的修补方法 - Google Patents
开裂负压管道的修补方法 Download PDFInfo
- Publication number
- CN1200971A CN1200971A CN 97104370 CN97104370A CN1200971A CN 1200971 A CN1200971 A CN 1200971A CN 97104370 CN97104370 CN 97104370 CN 97104370 A CN97104370 A CN 97104370A CN 1200971 A CN1200971 A CN 1200971A
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- Prior art keywords
- shroud ring
- steel band
- negative
- mending
- pressure pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
Description
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 97104370 CN1072543C (zh) | 1997-05-29 | 1997-05-29 | 开裂负压管道的修补方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 97104370 CN1072543C (zh) | 1997-05-29 | 1997-05-29 | 开裂负压管道的修补方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1200971A true CN1200971A (zh) | 1998-12-09 |
CN1072543C CN1072543C (zh) | 2001-10-10 |
Family
ID=5167309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 97104370 Expired - Fee Related CN1072543C (zh) | 1997-05-29 | 1997-05-29 | 开裂负压管道的修补方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN1072543C (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101347862B (zh) * | 2008-06-06 | 2011-04-06 | 上汽通用五菱汽车股份有限公司 | 一种应用微负压于管道裂缝焊补的作业方法 |
CN104028909A (zh) * | 2014-06-23 | 2014-09-10 | 济钢集团有限公司 | 一种可燃气体管道及容器漏点带压焊接用装置及方法 |
CN107442959A (zh) * | 2017-08-30 | 2017-12-08 | 山东四化环保节能工程有限公司 | 化工厂焦炉风机出口煤气管道不停产包焊的方法 |
-
1997
- 1997-05-29 CN CN 97104370 patent/CN1072543C/zh not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101347862B (zh) * | 2008-06-06 | 2011-04-06 | 上汽通用五菱汽车股份有限公司 | 一种应用微负压于管道裂缝焊补的作业方法 |
CN104028909A (zh) * | 2014-06-23 | 2014-09-10 | 济钢集团有限公司 | 一种可燃气体管道及容器漏点带压焊接用装置及方法 |
CN107442959A (zh) * | 2017-08-30 | 2017-12-08 | 山东四化环保节能工程有限公司 | 化工厂焦炉风机出口煤气管道不停产包焊的方法 |
CN107442959B (zh) * | 2017-08-30 | 2019-08-06 | 山东四化环保节能工程有限公司 | 化工厂焦炉风机出口煤气管道不停产包焊的方法 |
Also Published As
Publication number | Publication date |
---|---|
CN1072543C (zh) | 2001-10-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C06 | Publication | ||
PB01 | Publication | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI BAO STEEL GROUP IRON AND STEEL CO LTD Free format text: FORMER NAME OR ADDRESS: BAOSHAN STEEL GROUP IRON AND STEEL CO LTD Owner name: BAOSHAN IRON & STEEL CO., LTD. Free format text: FORMER NAME OR ADDRESS: SHANGHAI BAO STEEL GROUP IRON AND STEEL CO LTD |
|
CP03 | Change of name, title or address |
Address after: 201900, Fujin Road, Shanghai, Baoshan District orchard Patentee after: BAOSHAN IRON & STEEL Co.,Ltd. Address before: 200122 No. 370 Pu circuit, Shanghai, Pudong New Area Patentee before: BAOSHAN IRON & STEEL CO.,LTD. Address after: 200122 No. 370 Pu circuit, Shanghai, Pudong New Area Patentee after: BAOSHAN IRON & STEEL CO.,LTD. Address before: 201900 No. 1, Middle Road, Baoshan District, Shanghai Patentee before: Baosteel Group Corporation |
|
ASS | Succession or assignment of patent right |
Owner name: SHANGHAI BAOSTEEL CHEMICAL CO., LTD. Free format text: FORMER OWNER: BAOSHAN IRON + STEEL CO., LTD. Effective date: 20030418 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20030418 Address after: 201900 No. 1800 Tongji Road, Shanghai, Baoshan District Patentee after: Shanghai Baosteel Chemical Co.,Ltd. Address before: 200122, Fujin Road, Shanghai, Baoshan District orchard Patentee before: BAOSHAN IRON & STEEL Co.,Ltd. |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20011010 Termination date: 20100529 |