预置焊缝焊接对落锤试验结果的影响分析及质量控制建议  

Analysis on the Influence from Crack Starter Welding to Drop-weight Test Result and Quality Control Concern

作　　者：张红霞 Zhang Hongxia(China Nuclear Power Engineering Co.,Ltd.,Shenzhen 518124)

机构地区：[1]中广核工程有限公司,深圳518124

出　　处：《设备监理》2023年第4期25-31,共7页Plant Engineering Consultants

摘　　要：核电站主回路设备要求有较高的抗脆性,以保障设备安全性。本文通过调整某核电项目主设备锻件见证件材料落锤试验试样预置裂纹源焊缝的焊接参数,分析不同参数焊接热影响区对落锤试验结果的影响。分析结果表明,落锤试验试样制备时,预置裂纹源焊缝的不恰当焊接可对落锤试验结果产生不利影响,甚至可能导致试验结果失真;妥善控制预置裂纹源焊接过程和落锤试样制备,是确保落锤试验结果真实、有效的重要因素,进而提出预置裂纹源焊缝焊接和落锤试样制备的质量控制措施。The primary equipment materials used for nuclear power station shall be with high brittleness resistance property,ensuring the safety.The paper illustrates the process to analyze the influence from different heat affected zone during crack starter welding on specimens to drop weight test result,via adjusting welding electricity parameters.The results show that the welding on specimens may cause poor influence to drop weight test result,even result in the test invalidly.Therefore,appropriate quality control on the welding process and preparation for test specimens are important factors to ensure the valid and real drop-weight test results.Furthermore,the quality control concerns and proposals for drop-weight test specimen preparation are presented.

关 键 词：核电锻件 落锤试验 预置裂纹源焊缝 质量控制 

分 类 号：TB497[一般工业技术]