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隨著船艦建造向大型化和輕型化方向的發(fā)展,對(duì)船體結(jié)構(gòu)用鋼的力學(xué)性能和質(zhì)量等級(jí)的要求越來(lái)越高。
With the development of ship construction to large-scale and light direction, the higher the mechanical properties and quality grade of the steel hull structure and requirements.
EH36為高強(qiáng)度船體結(jié)構(gòu)用鋼,因其具有高強(qiáng)度、較好的低溫沖擊韌性和塑、優(yōu)良的加工性能、焊接性能和耐腐蝕等特性,是一種理想的船體重要結(jié)構(gòu)件的材料。
EH36 high strength hull structural steel, because of its high strength, good low-temperature impact toughness and ductility, excellent processing performance, welding performance and corrosion resistance and other characteristics, is an important part of the hull structure of ideal material.
但在船舶建造過(guò)程中,特別是在焊割加工的過(guò)程中,往往會(huì)發(fā)生超出公差的變形,為保證外觀質(zhì)量,需要對(duì)其進(jìn)行水火校正[3]。但是高強(qiáng)度船體用結(jié)構(gòu)鋼對(duì)溫度比較敏感,不同的溫度和澆水冷卻對(duì)其力學(xué)性能和顯微組織有較大的影響。
But in the shipbuilding process, especially in the process of cutting processing, often beyond the tolerance of the deformation, in order to ensure the appearance quality, needs to carry on the fire correction [3]. But the high strength hull structure steel is more sensitive to the temperature, and the different temperature and water cooling have great influence on the mechanical properties and microstructure.
對(duì)EH36的研究主要集中在軋制、正火和焊接等工藝,還沒有關(guān)于淬火相關(guān)的報(bào)道。
The EH36 study focused on rolling, normalizing and welding process, there has been no quenching related reports.
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