大型矿用自卸卡车主梁焊接修复工艺的应用

Application of Welding Repair Technology of Large Dump Truck Beam

随着现代矿用汽车行业的发展趋势于大型化、轻量化、高参数化。在作业过程中卡车各部件受到载重、行驶路况和工作环境的限制,长期处于疲劳状态导致卡车大型结构件频繁开裂。目前先服役于神华北电胜利能源有限公司内的830E系列卡车在采剥运行过程中,部分卡车主梁(以焊接主发动机支架处大梁为例)出现严重开裂现象,经过对开裂原因的详细分析,制定了针对卡车大梁有效的焊接修复方法,详细地叙述了焊接修复的具体工艺措施及步骤。本焊接方法可以为日常矿用设备的出动率打下了良好的基础。并为再次焊接类似故障大型设备提供了有力的参考资料。

With the development trend of development of modern mines-road car industry to mine large, lightweight, high parameters. In the process of operation, each part of the truck is subjected to heavy load, road condition and working environment, and long time is in the fatigue state. The first service in Shenhua Nortel Victory Energy Co., Ltd. the 830E series of trucks in the stripping operation process, part of the main girder （by welding primary support beam as an example） severe cracking phenomenon, through the detailed analysis of the causes of cracking, effective welding repair method for truck beam is established in detail describes the specific technological measures and steps of welding repair. This welding method can make a good foundation for the daily mining equipment. And provides a powerful reference for the re welding of similar failure of large equipment.