Wear-resistant plates can develop defects during the rolling process, which can be broadly categorized into raw material defects, surface spot defects, shape defects, and edge defects. Raw material defects refer to defects caused by the raw materials and maintained or retained during the cold rolling process. Common raw material defects include bubbles, inclusions, sheet metal indentation, material scratches, and roller marks.

The streak defects on wear-resistant plates are primarily caused by inadequate cleaning of the rolling oil on the steel strip surface and iron powder generated during the rolling process. These residues left on the strip surface after rolling lead to the streak defects. After the steel coil is annealed, the streaks on the strip surface carbonize, forming black spots that affect the surface quality of the strip.

The plate type defects of wear-resistant plates mainly refer to various undulations and warping in the continuous rolling mill products. The primary reasons include uneven load distribution of the stand, poor tension setting between stands, and unreasonable roller shapes. Such defects are prone to cause sticking inside the annealing furnace, significantly affecting product quality. Edge defects are mainly caused by poor quality of pickling and cutting edges or poor plasticity of the strip steel.

Wear-resistant plates have a wide range of applications, with various types available. Some may require bending into circles, while others need cutting. Be mindful that wear-resistant plates are tightly bonded between the wear-resistant layer and the base plate through metallurgical processing. Generally, bending into circles is fine, but issues may arise if the diameter is less than 300mm. Therefore, it is not recommended to use circles with a diameter under 300mm.

In the cutting and processing of wear-resistant plates, the steel plate is first processed as the cutting work is performed after the steel plate has been cut to size and marked. The commonly used cutting methods are CNC flame cutting and CNC waterjet cutting. CNC flame cutting is cost-effective and falls under primary processing, with a processing range of 3mm to 100mm steel plates. CNC waterjet cutting, on the other hand, is primarily used when the condition of non-deformation during cutting is required.