Welding wire for coal picks: LQ812 / LQ854, excellent welding process performance, beautiful forming, and less spatter. Has excellent wear resistance
Gas-shielded wear-resistant surfacing flux-cored wire. 3 倍以上。 The welding wire has excellent welding process performance, beautiful appearance, less spatter, and welding efficiency more than three times that of manual welding rod . The deposited metal is a high chromium alloy, and the metallurgical structure is martensite plus alloy carbides. Because carbides have extremely high hardness, they have excellent wear resistance. Fine cracks appear during the surfacing of the wire, which is the result of stress release and does not affect normal use under low impact industrial and mining conditions.
Instructions for use:
堆焊前去除待焊工件表面的油、锈等污物，车去疲劳层。 1. Remove the oil, rust and other dirt on the surface of the workpiece to be welded before surfacing, and remove the fatigue layer.
母材焊前最好进行预热，温度在 250 度以上，焊后保温缓冷。 2. It is best to preheat the base material before welding, the temperature is above 250 degrees, and the heat preservation is slowly cooled after welding.
、参考焊接工艺规范。 3 , refer to welding process specifications.