锻压技术

核电站核岛预埋件钢筋锚固块热镦粗技术的研究及应用

英文标题：Research and application on hot upsetting technology for steel bar anchor blocks of nuclear island pre-embedded parts in nuclear power station

作者：靳孝义靳希军惠维山

单位：中广核工程有限公司

关键词：预埋件钢筋锚固块热镦粗外观尺寸拉伸性能

分类号：TG316.3

出版年,卷(期):页码：2024,49(10):8-14

摘要：

为了解决核电站核岛预埋件钢筋锚固块采用焊接方式制造时流程繁琐、周期长、成本高，且质量依赖于焊工技能水平等问题，研究开发了热镦粗工艺，采用高频加热方式将钢筋加热至塑性变形温度以上后再使用热镦粗技术进行加工，实现了通过塑性成形方式制造预埋件钢筋锚固块。并对热镦粗后的钢筋锚固块试样进行外观尺寸检查、拉伸试验、金相分析等。结果表明：使用热镦粗工艺得到的预埋件钢筋锚固块的外观尺寸、拉伸性能等均符合设计要求，可用于预埋件钢筋锚固块的批量生产。研究内容为后续同类型部件的制造提供了借鉴。

In order to solve the problems of complicated welding process, long cycle and high cost, as well as the quality depending on the skill level of welders in the production of steel bar anchor blocks of nuclear island pre-embedded parts in nuclear power station, a hot upsetting process was researched and developed, the steel bars were heated to above the plastic deformation temperature by high-frequency heating, and then the pre-embedded steel bar anchor blocks were processed by hot upsetting technology to achieve the production of steel bar anchor blocks of pre-embedded parts by plastic forming method. Then, the appearance size inspection, tensile experiment and metallographic analysis, etc. of steel bars anchor block samples after hot upsetting were carried out. The results show that the appearance size and tensile properties of the pre-embedded steel bar anchor block obtained by the hot upsetting process meet the design requirements, and can be used for mass production of pre-embedded steel bar anchor block. The research can provide reference for the production of similar components in the future.

基金项目：

作者简介：靳孝义(1982-)，男，学士，正高级工程师,E-mail：jinsxiaoyi@126.com

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