The microstructure of the deposited metal and the effect of the welding heat input on the formation of the deposited metal are studied.
分析了堆焊熔敷金属的显微组织,研究了焊接线能量对堆焊层金属显微组织形成的影响。
In this article,the microstructure and micro-hardness of deposited weld metals are analyzed separately by optical microscope and micro-hardness instrument,and the effect of the welding heat input on the formation of the deposited metals is also considered.
对堆焊熔敷金属的显微组织进行了分析,测试了堆焊熔敷金属的显微硬度,并讨论了焊接线能量在堆焊层金属显微组织的形成中起的作用以及对堆焊金属硬度的影响。
The analyses on microstructure and hardness of deposited metals were made,and the effect of the welding heat input on the microstructure and micro-hardness of deposited metal was discussed.
采用光学显微镜观察分析了堆焊金属显微组织,利用硬度测试仪测试了堆焊金属的硬度,讨论了焊接线能量对堆焊层金属显微组织的形成、硬度的影响。
The effect of welding line energy on microstructure and low temperature toughness of heat-affected zone(HAZ) of X70 pipeline steel was studied by welding thermal simulation method.
通过焊接热模拟的方法,研究了焊接线能量对X70管线钢焊接热影响区组织和低温韧性的影响。
According to the results obtained, it is clear that the steel of low-carbon Mn-Si-Cr system with F/B (or M/B) duplex phases is a new high strength steel for high welding heat input.
试验结果表明,该钢具有焊接冷裂纹倾向低、可用大线能量焊接、焊后不宜进行消氢处理等特点,可用作高强度大焊接线能量用钢。
Research on the welding performance of low-carbon nickel;
低碳镍材料焊接性能的研究
Weld Repair and Maintenance of the Steel Belts in the Rotary Belt Condensation Granulators;
回转带式冷凝造粒机钢带的焊接修复与维护
Cause Analysis of the Weld Flaw Between the Flanges and Internal Sleeves of the High Pressure Heat Exchangers and Countermeasures;
高压换热器法兰与内套焊接裂纹原因分析与对策