High Tensile Strength Steel Plates and Welding Consumables for Architectural Construction with Excellent Toughness in Welded Joint -'JFE EWEL' Technology for Excellent Quality in HAZ of High Heat Input Welded Joints-

KIMURA Tatsumi; SUMI Hiroyuki; KITANI Yasushi

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High Tensile Strength Steel Plates and Welding Consumables for Architectural Construction with Excellent Toughness in Welded Joint -'JFE EWEL' Technology for Excellent Quality in HAZ of High Heat Input Welded Joints-

机译：焊接接头具有极高韧性的建筑用高抗拉强度钢板和焊接材料-“ JFE EWEL”技术可确保高热输入焊接接头的热影响区具有卓越的品质-

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The "JFE EWEL" technology for improving the toughness of heat affected zone (HAZ) effected by high heat input welding has been applied to make SA440 high tensile strength steel plates for architectural constructions. The developed "JFE EWEL" technology consists of minimizing the coarse grain HAZ region through controlling TiN particles, refining the micro structure of HAZ by using BN and Cainclusions as nucleation sites of intra gramdar ferrite's and decreasing carbon equivalent (Ceq) of steel. Furthermore, welding consumables have been newly developed to control the microstructure of HAZ through diffusive B atoms from weld metal to base material. The developed 100 mm thick SA440 grade steel plate exhibits excellent HAZ toughness in welded joints produced by SAW and ESW with high heat inputs. Consequently, JFE Steel has various kinds of high tensile strength steel plate and welding consumable for architectural construction with excellent toughness in welded joint.

机译：通过“ JFE EWEL”技术来改善由高热量输入焊接影响的热影响区（HAZ）的韧性，已被用于制造SA440高抗拉强度钢板，用于建筑结构。发达的“ JFE EWEL”技术包括通过控制TiN颗粒使HAZ粗晶粒区域最小化，通过使用BN和Cainclusions作为内压铁素体的成核位点来细化HAZ的微观结构，并降低钢的碳当量（Ceq）。此外，新开发了焊接材料以通过从焊接金属到母材的扩散性B原子来控制HAZ的微观结构。所开发的100毫米厚的SA440级钢板在SAW和ESW产生的具有高热量输入的焊接接头中具有出色的HAZ韧性。因此，JFE Steel拥有各种高抗拉强度钢板和用于建筑结构的焊接材料，其焊接接头的韧性极佳。

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《JFE technical report》 |2005年第5期|p.45-52|共8页
作者
KIMURA Tatsumi; SUMI Hiroyuki; KITANI Yasushi;
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Senior Researcher Deputy Manager, Plate & Shapes Res. Dept., Steel Res. Lab., JFE Steel;

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正文语种 eng
中图分类工业技术;
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1. High Tensile Strength Steel Plates with Excellent HAZ Toughness for Shipbuilding-JFE EWEL Technology for Excellent Quality in HAZ of High Heat Input Welded Joints- [J] . SUZUKI Shinichi, ICHIM1YA Katsuyuki, AK1TA Toshikazu JFE technical report . 2005,第5期

机译：船用热影响区韧性优异的高抗拉强度钢板-JFE EWEL技术，用于高热输入焊接接头的热影响区质量卓越-
2. Steel Plates for Architectural Construction with Excellent Toughness in Large Heat Input Welded Joints [J] . Tatsumi Kimura, Mitsuo Hisada, Seiji Fuzisawa 川崎製鉄技報 . 2002,第4期

机译：大热输入焊接接头中具有优异韧性的建筑用钢板
3. 460MPa-Yielcl-Strength-Class Steel Plate with JFE EWEL~(R) Technology for Large-Heat-Input Welding [J] . ICHIMIYA Katsuyuki, SUMI Hiroyuki, HIRAI Tatsushi JFE technical report . 2008,第11期

机译：采用JFE EWEL〜（R）技术的460MPa-Yielcl-强度级钢板，用于大热输入焊接
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8. Effect of Superficial Welding on the Tensile Strength of Chromium- Molybdenum Steel Plate Heat Treated after Welding [R] . Tweeddale, J. G., Lyons, J. V. 1946

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High Tensile Strength Steel Plates and Welding Consumables for Architectural Construction with Excellent Toughness in Welded Joint -'JFE EWEL' Technology for Excellent Quality in HAZ of High Heat Input Welded Joints-

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