Welding process and repair welding process of wear-resistant plate NM500

Wear-resistant plate NM500 is a wear-resistant steel plate with a hard martensite structure, mainly composed of C, Mn, Si and other elements. Wear-resistant plate NM500 has high strength, good impact resistance, good fatigue resistance and high wear resistance. It is widely used in many industries, such as mining, building materials, construction and so on.
    
    1. Wear-resistant plate NM500 Welding Process
    
    Welding process of wear-resistant plate NM500 mainly includes manual metal arc welding, rapid solidification welding and automatic submerged arc welding. The welding process should pay attention to the following points:
    
    1) Selection of welding materials: It is necessary to select welding wire and rods appropriate for steel. For welding of NM500 wear-resistant steel, it is recommended to use heat-resistant welding wire with high impact toughness and wear-resistant steel rods with good thermal stability.
    
    2) Selection of welding method: It is recommended to use well-established welding methods, such as manual metal arc welding, rapid solidification welding and automatic submerged arc welding.
    
    3) Heat treatment: After welding, it is necessary to carry out appropriate adjustment of welding temperature and cooling processes.
    
    2.Wear-resistant plate NM500 Repair Welding
    
    The welding repair process of wear-resistant plate NM500 mainly includes grinding, welding, heat treatment and post-weld treatment. The specific steps are as follows:
    
    1) Grinding: Grind the damaged area and make it clean and smooth.
    
    2) Welding: select appropriate heat-resistant welding materials according to the intensity requirements, and use manual metal arc welding or electric welding to weld the repaired area.
    
    3) Heat treatment: After welding, heat treatment is necessary to improve the strength and toughness of the parts.
    
    4) Post-weld treatment: Check the weld and surrounding metal structure, eliminating stress and restoring the area to its original shape.
    
    In conclusion, the welding process and repair welding process of wear-resistant plate NM500 are very important for its performance. The above steps should be strictly implemented to ensure the quality and durability of the wear-resistant plate NM500.

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