日本两公司开发的大热输入焊接用高强度钢

详细信息

High Strength Steel for Welding with High Heat Input Developed in Japan

摘要: 为了提高船舶及建筑结构等的焊接效率，必须采用大热输入焊接等措施。介绍了日本各钢铁公司研究开发的多种新技术，包括利用TiN对热影响区晶粒长大进行有效控制，依靠铁素体形核核心手段实现晶粒细化，并利用控制热影响区微观组织以及采用TMCP控制轧制技术等。在综合利用这些技术的基础上，开发成功了各种适合于大热输入焊接的高强度钢，以确保大热输入条件下热影响区具有高的韧性，用于造船、建筑结构、桥梁等的建造。
- 大热输入焊接 /
- 热影响区韧性 /
- 细化晶粒 /
- 高强度钢
Abstract: In order to improve the welding efficiency of ship structure and building structure, high heat input welding should be used. Two Japanese companies had developed many technologies, including effective control of grain size in HAZ by using TiN, refining grain by ferrite nucleation, and the control of microstructure in HAZ and the TMCP controlled rolling technology, etc. By combining these new technologies, high strength steels for welding with various high heat inputs were successfully developed, which could be used in shipbuilding, buildings, bridges and ensure the toughness of HAZ with high heat input.
- high heat input welding /
- toughness in HAZ /
- grain refining /
- high strength steel

[1]	笠松裕,高嶋修嗣,細谷隆司.50 kg/mm²級高張力鋼板の大入熱溶接熱影響部の靱性におよぼす Ti および N量の影響[J].鐵と鋼:日本鐡鋼協會々誌,1979,65(8):1232-1241.
[2]	児島明彦,植森龍治,皆川昌紀,et al.微細粒子による溶接熱影響部の組織微細化技術『HTUFF』を適用した厚鋼板の開発[J].まてりぁ,2003,42(1):67-69.
[3]	张朋彦,高彩茹,朱伏先.超大热输入焊接用EH40钢的模拟熔合线组织与性能[J].金属学报,2012,48(3):264-270.
[4]	陈晓,卜勇,习天辉.武钢大线能量焊接系列钢的研发进展[J].中国材料进展,2011,30(12):34-39.
[5]	张宇,许红梅,潘鑫,等.大焊接热输入船板EH40气电立焊接头的组织和性能[J].焊接,2013(3):38-41.
[6]	児島明彦,清瀬明人,植森龍治.微細粒子によるHAZ細粒高靭化技術"HTUFF"の開発(厚板特集)[J].新日鉄技報,2004,380:2-5.
[7]	鈴木伸一,一宮克行,秋田俊和.溶接熱影響部靭性に優れた造船用高張力鋼板--大入熱溶接部の高品質化を実現するJFE EWEL技術(厚板特集号)[J].新日鉄技報,2004(5):19.
[8]	ICHIMIYA K,SUMI H,HIRAI T.460MPa-yield-strength-class steel plate with JFE EWEL^® technology for large-heat-input welding[J].JFE Technical Report,2008(11):7-12.