Coal mining equipment repair overlay welding wire, crusher guard plate wear-resistant flux-cored wire is specifically developed for the wear characteristics of vertical kiln trays, tower tips, conveying equipment in cement plants, as well as gold mining machinery, crushers, spiral, roller, vertical, centrifugal, jaw crushers, bulldozer buckets, excavator buckets, grab buckets, etc. Using molybdenum, chromium, boron, and carbon as the main raw materials, it can be used with both AC and DC, featuring high hardness, good toughness, high-temperature resistance, wear resistance, and low cost. It is suitable for overlay welding on surfaces of carbon steel, alloy steel, cast iron, cast steel, etc. Overlay welding hardness: (after welding, air cooling) HRC ≥ 75. Diameter: 1.2/1.6mm. Precautions: ① Before welding, clean oil rust and impurities from the workpiece. ② This welding wire should be stored in a dry warehouse; if damp, it must be dried at 200°C before use. ③ The overlay welding layer cannot be machined by cutting, only by grinding.