Title:
SUBMERGED-ARC WELDING PROCESS FOR THICK-GAUGE TMCP-STATE HIGH-STRENGTH LOW-YIELD-RATIO BRIDGE STEEL
Document Type and Number:
WIPO Patent Application WO/2022/236976
Kind Code:
A1
Abstract:
A submerged-arc welding process for thick-gauge TMCP-state high-strength low-yield-ratio bridge steel. The process uses welding materials and welding process parameters that match with high-performance bridge steel. The welding wire mark is CHW-S80CF, the welding flux mark is CHF606, and the tensile strength of a welding wire is more than 850 Mpa. Symmetrical V-shaped grooves are used for welding, and low temperature preheating is performed before the welding. The welding current, arc voltage, welding speed and welding heat input parameters during priming and filling are set during the welding. Under the condition of a large heat input, the low-temperature toughness, strength and cold bending performance of a welded joint are taken into account. The impact toughness of all parts of the joint at -40°C is higher than 60 J, and the joint has an excellent toughness matching degree and cold bending forming performance.
Inventors:
HUANG YIXIN (CN)
QIAO MINGLIANG (CN)
LIU TAO (CN)
CUI QIANG (CN)
WANG JUN (CN)
LI SONG (CN)
CHEN LINHENG (CN)
YIN YUQUN (CN)
WANG HONGHONG (CN)
QIAO MINGLIANG (CN)
LIU TAO (CN)
CUI QIANG (CN)
WANG JUN (CN)
LI SONG (CN)
CHEN LINHENG (CN)
YIN YUQUN (CN)
WANG HONGHONG (CN)
Application Number:
PCT/CN2021/110539
Publication Date:
November 17, 2022
Filing Date:
August 04, 2021
Export Citation:
Assignee:
NANJING IRON & STEEL CO LTD (CN)
International Classes:
B23K9/18; B23K9/235; B23K33/00; B23K35/24; B23K35/362
Foreign References:
| CN113182652A | 2021-07-30 | |||
| CN101337301A | 2009-01-07 | |||
| CN106825993A | 2017-06-13 | |||
| CN110303268A | 2019-10-08 | |||
| CN108746945A | 2018-11-06 | |||
| CN108747072A | 2018-11-06 | |||
| CN107931888A | 2018-04-20 | |||
| CN107553003A | 2018-01-09 | |||
| CN103317220A | 2013-09-25 |
Other References:
WU JIANPENG, LANG YONGSHENG, LIU JUN: "Research on weldability of high strength steel XCS790D", WELDING TECHNOLOGY, vol. 47, no. 7, 28 July 2014 (2014-07-28), pages 8 - 10, XP093003702, ISSN: 1002-025X, DOI: 10.13846/j.cnki.cn12-1070/tg.2018.07.003
ZHOU LIN, QU GANG: "The Welding Test and Engineering Application for Domestic WSD690E High-tensile Steel", SCIENCE TECHNOLOGY AND ENGINEERING, ZHONGGUO JISHU JINGJI YANJIUHUI, CN, vol. 14, no. 6, 28 February 2014 (2014-02-28), CN , pages 247 - 250, XP093003698, ISSN: 1671-1815
LUO SHUANDING, ZHOU LIN: "The Application of WSD690E high-tensile steel at Hohhot pumped-storage power station program", CHINA SCIENCE AND TECHNOLOGY INFORMATION, no. 5, 1 March 2014 (2014-03-01), pages 118 - 121, XP093003697, ISSN: 1001-8972, DOI: 10.3969/j.issn.1001-8972.2014.05.035
QIU FUXIANG, LUO SONGYUN;CHENG HAOXUAN;AI AIGUO;TAN XIAOBIN;XING YAOJIN;OU YONG: "Study on Welding Performance of 800 MPa High Strength Steel for Hydropower", METAL MATERIALS AND METALLURGY ENGINEERING, vol. 49, no. 2, 28 April 2021 (2021-04-28), pages 16 - 23, XP093003693, ISSN: 2095-5014
ZHANG XUEFENG, XIAOYAN LIU, HUIMING ZHOU: "Experimental Research on Welding Procedure of P690QL1 Quenched and Tempered High Strength Steel Plate", WIDE AND HEAVY PLATE, vol. 18, no. 6, 30 December 2012 (2012-12-30), XP093003690, ISSN: 1009-7864
ZOU, YANG ET AL.: "Development of 800MPa-level High Strength Steel Plate for Shougang Hydroelectric Pressure Steel Pipe", HYDROPOWER STATION PRESSURE PIPELINE, CN, 31 August 2014 (2014-08-31), CN, pages 557 - 565, XP009541298
ZHOU, LIN; LIAO, JUN: "Research on the Technology of 800MPa Grade Ultra High Strength Quenched and Tempered Steel", HYDROPOWER AND PUMPED STORAGE, CN, vol. 2, no. 2, 20 April 2016 (2016-04-20), CN, pages 7 - 13, 73, XP009541032, ISSN: 2096-093X
LI HOUYI, ZHOU YOULONG, ZHANG YUANWANG, JIA FUJUN, LIAO QI, XIE WEI: "Welding Technology Test of Hydropower 780mpa-level Low-Alloy High-Strength Steel SX780CF", WELDING TECHNOLOGY, vol. 45, no. 7, 31 July 2016 (2016-07-31), pages 58 - 60, XP093003682, ISSN: 1002-025X, DOI: 10.13846/j.cnki.cn12-1070/tg.2016.07.017
ZHOU LIN, QU GANG: "The Welding Test and Engineering Application for Domestic WSD690E High-tensile Steel", SCIENCE TECHNOLOGY AND ENGINEERING, ZHONGGUO JISHU JINGJI YANJIUHUI, CN, vol. 14, no. 6, 28 February 2014 (2014-02-28), CN , pages 247 - 250, XP093003698, ISSN: 1671-1815
LUO SHUANDING, ZHOU LIN: "The Application of WSD690E high-tensile steel at Hohhot pumped-storage power station program", CHINA SCIENCE AND TECHNOLOGY INFORMATION, no. 5, 1 March 2014 (2014-03-01), pages 118 - 121, XP093003697, ISSN: 1001-8972, DOI: 10.3969/j.issn.1001-8972.2014.05.035
QIU FUXIANG, LUO SONGYUN;CHENG HAOXUAN;AI AIGUO;TAN XIAOBIN;XING YAOJIN;OU YONG: "Study on Welding Performance of 800 MPa High Strength Steel for Hydropower", METAL MATERIALS AND METALLURGY ENGINEERING, vol. 49, no. 2, 28 April 2021 (2021-04-28), pages 16 - 23, XP093003693, ISSN: 2095-5014
ZHANG XUEFENG, XIAOYAN LIU, HUIMING ZHOU: "Experimental Research on Welding Procedure of P690QL1 Quenched and Tempered High Strength Steel Plate", WIDE AND HEAVY PLATE, vol. 18, no. 6, 30 December 2012 (2012-12-30), XP093003690, ISSN: 1009-7864
ZOU, YANG ET AL.: "Development of 800MPa-level High Strength Steel Plate for Shougang Hydroelectric Pressure Steel Pipe", HYDROPOWER STATION PRESSURE PIPELINE, CN, 31 August 2014 (2014-08-31), CN, pages 557 - 565, XP009541298
ZHOU, LIN; LIAO, JUN: "Research on the Technology of 800MPa Grade Ultra High Strength Quenched and Tempered Steel", HYDROPOWER AND PUMPED STORAGE, CN, vol. 2, no. 2, 20 April 2016 (2016-04-20), CN, pages 7 - 13, 73, XP009541032, ISSN: 2096-093X
LI HOUYI, ZHOU YOULONG, ZHANG YUANWANG, JIA FUJUN, LIAO QI, XIE WEI: "Welding Technology Test of Hydropower 780mpa-level Low-Alloy High-Strength Steel SX780CF", WELDING TECHNOLOGY, vol. 45, no. 7, 31 July 2016 (2016-07-31), pages 58 - 60, XP093003682, ISSN: 1002-025X, DOI: 10.13846/j.cnki.cn12-1070/tg.2016.07.017
Attorney, Agent or Firm:
NANJING SUGAO PATENT AND TRADEMARK FIRM ( ORDINARY PARTNERSHIP ) (CN)
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