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首页> 外文期刊>JFE technical report >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-
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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-

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-

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摘要

In order to meet the increased heat input in welding for improved productivity of shipbuilding, JFE Steel developed "JFE EWEL," a new technology for improving HAZ toughness in high heat input welding. Technical factors of JFE EWEL include the-tontrol of grain size in HAZ through optimization of TIN, control of micro structure in HAZ grain through advanced microalloying technology, and optimized alloy design ^through application of Super-OLAC. By applying JFE:-EWEL to the steel used in shipbuilding, such as YS390 N/mm~2 class heavy section plate for container ships, low-temperature service steel plate for LPG carriers, and YS355 N/mm~2 class F-grade plate for hull structures, excellent properties in both base plates and welded joints for high heat input welding were achieved.
机译：为了满足焊接中增加的热量输入以提高造船生产率，JFE Steel开发了“ JFE EWEL”，这是一种用于提高高热量输入焊接中的HAZ韧性的新技术。 JFE EWEL的技术因素包括：通过优化TIN来控制热影响区晶粒尺寸，通过先进的微合金化技术控制热影响区晶粒的微观结构，以及通过应用超级OLAC来优化合金设计。通过将JFE：-EWEL应用于造船用钢，例如集装箱船的YS390 N / mm〜2级重截面板，LPG船用的低温服务钢板和YS355 N / mm〜2级F级用于船体结构的钢板，在高热输入焊接的底板和焊接接头中均具有出色的性能。

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