干气压缩机后冷却器扩散焊工艺优化研究  

ON DIFFUSION WELDING PROCESS OPTIMIZATION OF AFTER-COOLER FOR DRY GAS COMPRESSOR

作　　者：郭志芳[1] 孟凡昌[1] 许小波[1] 任来超 蒋文春[3] 付敏翔 张玉财[3] Guo Zhifang;Meng Fanchang;Xu Xiaobo;Ren Laichao;Jiang Wenchun;Fu Minxiang;Zhang Yucai(Offshore Oil Engineering Co.,Ltd.,Tianjin,300452;Hangzhou Shenshi Energy Saving Technology Co.,Ltd.,Hangzhou,Zhejiang,311612;China University of Petroleum(East China),Qingdao,Shandong,266580)

机构地区：[1]海洋石油工程股份有限公司,天津300452 [2]杭州沈氏节能科技股份有限公司,浙江杭州311612 [3]中国石油大学(华东)新能源学院,山东青岛266580

出　　处：《石油化工设备技术》2022年第5期18-22,I0001,I0002,共7页Petrochemical Equipment Technology

基　　金：省部级--中海石油(中国)科技项目(LSZX-2020-HN-05-01).

摘　　要：为获得高性能干气压缩机用印刷电路板换热器,以不锈钢材料316L扩散焊接头为研究对象,在工作状态下对其不同扩散焊工艺下的力学性能进行了研究.结果证实:接头强度和韧性随焊接温度升高而增大,温度高于1060℃时,强度变化较小;接头屈服强度和韧性均随焊接压力升高而升高,焊接压力大于10MPa时,接头力学性能变化较小;随着保温时间延长,强度变化较小,韧性增加.综合考虑后,将工艺优化为扩散焊温度1060~1120℃、焊接压力10~13MPa、保温时间60min.In order to obtain high performance of the printed circuit plate heat exchanger for dry gas compressor,the mechanical properties of the stainless steel material 316Ldiffusion welded joints are investigated under different diffusion welding processes in working condition.The results confirm that the joint strength and toughness increase with the increase in welding temperature;when the welding temperature is higher than 1,060 ℃,the welding strength variation tendency is small;the joint yield strength and toughness increase with the increase in welding pressure;when the welding pressure is greater than 10 MPa, the joint mechanical properties change is small;with the extension of holding time,the strength changes slightly while the toughness increases. After comprehensive consideration, the process is optimized as follows: the diffusion welding temperature is 1,060~1,120 ℃,the welding pressure is 10~13 MPa,and the holding time is 60min.

关 键 词：印刷电路板换热器 扩散焊 工艺优化 强度 韧性 

分 类 号：TE965[石油与天然气工程—石油机械设备] TG453.9[金属学及工艺—焊接]