异型焊接接头局部焊后热处理

发布时间：2018-06-30 21:27

本文选题：异型焊接接头 + 焊后热处理　；参考：《金属热处理》2017年03期

【摘要】：为研究和描述非对称传热焊接接头局部焊后热处理温度场特征,提出了异型焊接接头的概念,并根据热传导方向的不同,将异型焊接接头分为横向单向导热、横向双向导热、横向和纵向导热3种类型。与对称传热焊接接头温度场比较,异型焊接接头局部焊后热处理时,加热区域最高温度偏移加热装置的中心,均温范围变小,第三类异型接头还存在纵向温度梯度、局部区域温差剧烈等特征。为了改善异型焊接接头温度分布,提出并开发了温度补偿法和功率补偿法两种焊后热处理工艺,并从加热装置的设置、温度测点的布置和工艺参数的选择等方面概括了两种工艺的要点,以实例说明了两种工艺在工程上的应用。
[Abstract]:In order to study and describe the characteristics of the heat treatment temperature field after the partial welding of unsymmetrical heat transfer welded joint, the concept of the special-shaped welding joint is put forward. According to the different heat conduction direction, the special-shaped welded joint is divided into 3 types: transverse direction heat conduction, transverse bidirectional heat conduction, transverse and longitudinal heat conduction. When the welding joint is partially welded after heat treatment, the maximum temperature of the heating area is shifted to the center of the heating device, and the temperature range becomes smaller. The third types of special-shaped joints still have the characteristics of the longitudinal temperature gradient and the severe temperature difference in the local area. In order to improve the temperature distribution of the welded joint, two kinds of welding are proposed and developed after the temperature compensation method and the power compensation method. In the heat treatment process, the main points of the two processes are summarized from the setting of the heating device, the arrangement of the temperature measurement points and the selection of the technological parameters, and the application of the two processes in the engineering is illustrated by an example.
【作者单位】：苏州热工研究院有限公司;
【分类号】：TG441.8

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