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Method Of Welding Structural Steel And Welded Steel Structure
Abstract: A method of welding structural steel containing, by mass%, Cr: 1.5 to 3.5%, Mo: 0.5 to 1.5%, and V: 0.15 to 0.5%. It comprises preheating joint of the structural steel to be welded at temperatures of 150 to 250 degrees Celsius; multilayer welding the joint end portions; keeping the interpass temperature of the joint end portions during the multilayer welding at 150 to 350 degrees Celsius; then after welding completion, performing DHT by heat treating the weld zone before cooling down below 150 degrees Celsius under the conditions that the temperature is 250 to 340 degrees Celsius and that the treatment time is 5 to 10 hours.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
08 July 2014
Publication Number
37/2014
Publication Type
INA
Invention Field
ELECTRICAL
Status
Email
Parent Application
Applicants
HITACHI ZOSEN CORPORATION
7-89, NANKO-KITA 1-CHOME,
SUMINOE-KU, OSAKA-SHI, OSAKA 559-8559,
JAPAN
Inventors
1. MITSUYOSHI NAKATANI
C/O HITACHI ZOSEN CORPORATION,
7-89, NANKO-KITA 1-CHOME,
SUMINOE-KU, OSAKA-SHI, OSAKA 559-8559,
JAPAN
2. MASAMITSU ABE
C/O HITACHI ZOSEN CORPORATION,
7-89, NANKO-KITA 1-CHOME,
SUMINOE-KU, OSAKA-SHI, OSAKA 559-8559,
JAPAN
3. JUNYA YAMADA
C/O HITACHI ZOSEN CORPORATION,
7-89, NANKO-KITA 1-CHOME,
SUMINOE-KU, OSAKA-SHI, OSAKA 559-8559,
JAPAN
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 1434-KOLNP-2014-(08-07-2014)TRANSLATED COPY OF PRIORITY DOCUMENT.pdf | 2014-07-08 |
| 2 | 1434-KOLNP-2014-(08-07-2014)PCT SEARCH REPORT & OTHERS.pdf | 2014-07-08 |
| 3 | 1434-KOLNP-2014-(08-07-2014)FORM-5.pdf | 2014-07-08 |
| 4 | 1434-KOLNP-2014-(08-07-2014)FORM-3.pdf | 2014-07-08 |
| 5 | 1434-KOLNP-2014-(08-07-2014)FORM-2.pdf | 2014-07-08 |
| 6 | 1434-KOLNP-2014-(08-07-2014)FORM-1.pdf | 2014-07-08 |
| 7 | 1434-KOLNP-2014-(08-07-2014)CORRESPONDENCE.pdf | 2014-07-08 |
| 8 | 1434-KOLNP-2014-WO2013140798A2.pdf | 2014-07-15 |
| 9 | 1434-KOLNP-2014-(01-08-2014)-FORM-1.pdf | 2014-08-01 |
| 10 | 1434-KOLNP-2014-(01-08-2014)-CORRESPONDENCE.pdf | 2014-08-01 |
| 11 | 1434-KOLNP-2014-(17-10-2014)-CORRESPONDENCE.pdf | 2014-10-17 |
| 12 | 1434-KOLNP-2014-(17-10-2014)-ANNEXURE TO FORM 3.pdf | 2014-10-17 |
| 13 | 1434-KOLNP-2014---(18-11-2014)-PA.pdf | 2014-11-18 |
| 14 | 1434-KOLNP-2014---(18-11-2014)-CORRESPONDENCE.pdf | 2014-11-18 |
| 15 | 1434-KOLNP-2014-FER.pdf | 2019-04-05 |
| 16 | 1434-KOLNP-2014-AbandonedLetter.pdf | 2019-10-17 |
Search Strategy
| 1 | search1434kolnp2014_18-09-2018.pdf |