摘要
介绍了一种具有耐火性能的建筑结构钢Q345B-Fr用手工焊条,该焊条的熔敷金属具有良好的综合力学性能和抗高温强度,在600℃保温2h条件下,高温强度下降不小于常温强度的2/3,焊条具有优良的焊接工艺性能和操作性能。
A fire-proof electrode for building structure steel Q345B - Fr was introduced. The deposited metal of the electrode had good comprehensive mechanical properties and high-temperature strength. The deposited metal had good high temperature strength at 600℃×2 h,which was no smaller than 2/3 of the normal temperature strength, and the running characteristics and usability of the electrode were excellent.
出处
《焊接》
北大核心
2006年第4期43-47,共5页
Welding & Joining
关键词
建筑
耐火钢
焊条
building, fire-proof steel, covered electrode
