随着船舰建造向大型化和轻型化方向的发展,对船体结构用钢的力学性能和质量等级的要求越来越高。
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为高强度船体结构用钢,因其具有高强度、较好的低温冲击韧性和塑、优良的加工性能、焊接性能和耐腐蚀等特性,是一种理想的船体重要结构件的材料。
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.
但在船舶建造过程中,特别是在焊割加工的过程中,往往会发生超出公差的变形,为保证外观质量,需要对其进行水火校正[3]。但是高强度船体用结构钢对温度比较敏感,不同的温度和浇水冷却对其力学性能和显微组织有较大的影响。
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.
对EH36的研究主要集中在轧制、正火和焊接等工艺,还没有关于淬火相关的报道。
The EH36 study focused on rolling, normalizing and welding process, there has been no quenching related reports.
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