Precautions for high hardness steel plate bending and winding and advantages of welding
Jan 23, 2019

High-hardness steel sheets are used in a wide variety of applications, and they are also available in a variety of ways. In some places, it may be necessary to bend the coil. Since the high-hardness steel plate is tightly bonded to the wear-resistant layer and the substrate by metallurgical processing, it is normal to bend the coil in a normal case, but if the diameter is less than 300 mm, problems may occur, so a coil of 300 mm or less is not recommended.


For those who use high-hardness steel sheets below 300mm, users who need to bend the coils can use the inner wall surfacing tubes; for high-hardness steel sheets with thickness less than 5cm, try not to coil; for bending, the angle should not be less than 90 degrees, otherwise it will Affect the service life of high-hardness steel plates; for high-hardness steel plates with a thickness of 20-30, the same is not suitable for the winding of the coil to prevent the wear-resistant layer from falling off.


It has been proved that the welding process of the high-hardness steel plate is very good, it is not easy to ignite the arc, and even if it is ignited, it cannot be stably burned, and the welding process is continued. During the welding process, a large amount of gas is generated to cover the arc and the molten pool, which reduces the interaction between the molten metal and the air. When the weld is cooled, the melted skin forms a layer of slag covering the surface of the weld, protecting the weld metal and allowing it to cool slowly, reducing the possibility of creating voids.

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