断续菱形花纹焊道工艺在刮板输送机中部槽耐磨修复中的应用

摘要

Aimed at bad wearability and short service life of middle plate of middle trough of scraper conveyer,the wear-resisting surfacing technique of middle trough was studied.The re-sults showed that the technique of intermittent argyle pattern weld bead could enhance its weara-bility.After more than one year to carry out the industrial contrast test underground,the coal output via strengthened middle plate has been over 2 million tones.The service life of middle plate has been doubled than before,and the economic benefit is remarkable.%针对刮板输送机中部槽中板耐磨性差和使用寿命低的问题,对中部槽耐磨堆焊技术和工艺进行了试验研究,试验结构表明,断续菱形花纹焊道工艺能够提高中板的耐磨性,经过一年多的井下工业性对比试验,被强化处理的中板过煤量可以超过200万 t,寿命延长了一倍以上,经济效益显著。