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首页> 外文期刊>Diffusion and Defect Data. Solid State Data, Part B. Solid State Phenomena >Effect of Preheating before Welding on the Microstructure and the Properties of SA213 T12 and SA387Gr11CL2 Steels Joints on the Example of a Sheet Piling
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Effect of Preheating before Welding on the Microstructure and the Properties of SA213 T12 and SA387Gr11CL2 Steels Joints on the Example of a Sheet Piling

机译：焊接前预热对板桩示例SA213 T12和SA387Gr11CL2钢接头组织和性能的影响

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摘要

The paper presents the results of the investigations of welded joints of the tube-flat bar type made of SA213 T12 and SA387Gr11CL2 steels. The joints were produced in two variants: 1) with heating up to 200℃, 2) without heating. The materials were joined by the submerged arc welding method. The temperatures of preheating before welding were determined, and it was verified whether the empiric relations (1) and (2), used to determine the minimal temperature of heating before welding for steel, can be applied under production conditions. The produced welded joints were evaluated quality-wise. Hardness measurements were performed in the particular joint areas. Finally, the effect of preheating on the obtained joints was compared.
机译：本文介绍了由SA213 T12和SA387Gr11CL2钢制成的扁管型焊接接头的研究结果。接头有两种变型：1）加热至200℃，2）不加热。通过埋弧焊方法将材料连接在一起。确定了焊接前的预热温度，并验证了经验式（1）和（2）（用于确定钢的焊接前的最低加热温度）是否可以在生产条件下应用。对生产的焊接接头进行了质量评估。在特定的接缝区域进行硬度测量。最后，比较了预热对获得的接头的影响。

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