截割头体与截齿座的焊接工艺改进  

Improvement of welding of cutting head body onto pick holder

作　　者：陶鹏[1] 张金库[1] 李晶晶[1] 黄钱雷 

机构地区：[1]三一重型装备有限公司,辽宁沈阳110027

出　　处：《矿山机械》2010年第11期21-23,共3页Mining & Processing Equipment

摘　　要：针对悬臂式掘进机截割头体与截齿座焊后出现冷裂纹的现象,通过对材质的焊接性分析及设备井下使用情况的调查跟踪,选用了截割头体与截齿座合理的焊接工艺方法和参数,降低了焊缝的冷裂敏感性,为获得优质的焊接接头提供了重要依据。Aiming at the cold crack occurs after the cutting head body being welded onto the pick holder of the cantilever roadheader,the welding properties of material is analyzed and the employment of the underground facilities investigated also.Moreover,the reasonable process of welding of the cutting head body onto the pick holder and the technical parameters are determined to decrease the sensitivity of weld seam to the cold crack,thus the important reference for designing the high quality welded joint is achieved.

关 键 词：截割头体 截齿座 冷裂纹 焊接工艺 

分 类 号：TD421.5[矿业工程—矿山机电]