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首页> 外文期刊>SEAISI Quarterly >Development of 550 and 610 MPa Class High Strength Steel Plates with Superior Toughness and Excellent Weldability by On-line Heat-Treatment Process for Tanks and Penstocks
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Development of 550 and 610 MPa Class High Strength Steel Plates with Superior Toughness and Excellent Weldability by On-line Heat-Treatment Process for Tanks and Penstocks

机译：通过罐和压力管道在线热处理工艺开发出具有高韧性和优异可焊性的550和610 MPa级高强度钢板

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摘要

550 and 610 MPa class high strength steel plates with superior toughness and excellent weldability have been developed by using latest on-line heat-treatment technology for tanks and penstocks. Excellent properties of the developed plates and their weldments are obtained by micro-alloying technology, and direct-quenching and online tempering process using on-line accelerated cooling system with a high cooling capacity and induction heating type heat-treatment on-line process, while including low C, low weld cracking parameter (PCM) value and free of B additive. Especially, rapid heating and tempering using heat-treatment on-line process achieved both improvement of toughness and the extension of heat-treated high-performance steel plates' production capacity. They have actual application results to many plants.
机译：550和610 MPa级高强度钢板具有出色的韧性和出色的可焊接性，是通过使用最新的罐和压力管道在线热处理技术开发的。通过微合金化技术，采用高冷却能力的在线加速冷却系统和感应加热式热处理在线工艺的直接淬火和在线回火工艺，获得了开发的板材及其焊接件的卓越性能。包括低C，低焊接裂纹参数（PCM）值和不含B添加剂。特别是，通过热处理在线工艺进行的快速加热和回火既提高了韧性，又扩大了热处理高性能钢板的生产能力。它们对许多工厂都有实际的应用结果。

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