How to identify the quality of wear-resistant steel plates？

Appearance Quality

　　1. Flatness: The four corners of the flat plate are on the ground,

　　 2. Welding cracks: evenly spaced, small cracks, not wide;

　　3. hardfacing layer: no obvious unevenness

　　4. Welding defects: within a reasonable range;

　　 5. Surface spray paint: the paint layer is evenly thin and thick, putty, etc.;

6. Edge cutting on all sides: straight, no burrs; the large plasma cutting machine is well formed,

Intrinsic quality

　　1. Wear-resistant layer thickness: Measured after polishing, the hardfacing layer is obvious, take multi-point measurement and average value;

　　2. The total thickness of the steel plate: controlled within the allowable range, ±0.5mm

　　3. Hardness: within the required range, HRC55-62

　　 4. Composition: alloy composition;

　　 5. Metallography: Metallographic analysis;