CN1070098C - 一种取代金属焊后防腐处理的焊接方法 - Google Patents
一种取代金属焊后防腐处理的焊接方法 Download PDFInfo
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- CN1070098C CN1070098C CN97106107A CN97106107A CN1070098C CN 1070098 C CN1070098 C CN 1070098C CN 97106107 A CN97106107 A CN 97106107A CN 97106107 A CN97106107 A CN 97106107A CN 1070098 C CN1070098 C CN 1070098C
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- welding
- corrosion
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN97106107A CN1070098C (zh) | 1997-09-23 | 1997-09-23 | 一种取代金属焊后防腐处理的焊接方法 |
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CN97106107A CN1070098C (zh) | 1997-09-23 | 1997-09-23 | 一种取代金属焊后防腐处理的焊接方法 |
Publications (2)
Publication Number | Publication Date |
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CN1210050A CN1210050A (zh) | 1999-03-10 |
CN1070098C true CN1070098C (zh) | 2001-08-29 |
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CN97106107A Expired - Fee Related CN1070098C (zh) | 1997-09-23 | 1997-09-23 | 一种取代金属焊后防腐处理的焊接方法 |
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CN (1) | CN1070098C (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103231148A (zh) * | 2013-05-03 | 2013-08-07 | 胜利油田金岛工程安装有限责任公司 | 内衬玻璃防腐钢管管端预防腐处理方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1066410A (zh) * | 1992-05-21 | 1992-11-25 | 大庆石油管理局油田建设设计研究院 | 小口径钢质管道焊接接头区内壁防腐焊接补口方法及装置 |
CN1099110A (zh) * | 1994-05-27 | 1995-02-22 | 胜利石油管理局油建二公司 | 衬里管线焊口处加套粘接补口方法 |
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1997
- 1997-09-23 CN CN97106107A patent/CN1070098C/zh not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1066410A (zh) * | 1992-05-21 | 1992-11-25 | 大庆石油管理局油田建设设计研究院 | 小口径钢质管道焊接接头区内壁防腐焊接补口方法及装置 |
CN1099110A (zh) * | 1994-05-27 | 1995-02-22 | 胜利石油管理局油建二公司 | 衬里管线焊口处加套粘接补口方法 |
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CN1210050A (zh) | 1999-03-10 |
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Owner name: CHINA NATIONAL PETROLEUM CORP. Free format text: FORMER NAME OR ADDRESS: PETROLEUM UNIVERSITY (HUADONG) Owner name: PETROLEUM UNIVERSITY (HUADONG) Free format text: CHANGE FOR CO-PATENTEE; FORMER NAME OR ADDRESS: NONE |
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CP03 | Change of name, title or address |
Address after: Six kang, Xicheng District, Beijing Co-patentee after: University of Petroleum (East China) Patentee after: China National Petroleum Corporation Address before: No. 149, Tai'an Road, Dongying, Shandong Patentee before: University of Petroleum (East China) |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20010829 Termination date: 20160923 |
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CF01 | Termination of patent right due to non-payment of annual fee |