Sign production how to avoid the rolling defects when _ panels made

Sign production how to avoid the rolling defects of signs in the rolling process is easy to appear some defects, rolling processing can solve some the key issue in the process is not easy to achieve. In order to better ensure the quality of production, the sign below we come to tell you about how to avoid in the production rolling defects: 1. Plate surface rule - pitting if sign after rolling workpiece surface roughness is coarse, surface present a more obvious as the trace of the punch tap, the reason is because of the hard alloy roller type surface have scars caused by, at this time to replace the wheel or on the original profile of grinding wheel, to ensure that the roller surface gloss value is normal. 2. Visual sign after sign marks at the surface of the roll surface has obvious stain, but cannot feel touch and actual rough becomes lower, this is because the roller in rolling trace caused by radial runout. The solution is cleaning the needle roller bearing, lubricating, grinding wheel profile. 3. Sign on the surface of the edge rolling after although lower roughness, but visual and touch panels surface has the obvious bulge feeling, this is caused due to the large rolling pressure and feed. At this time can be appropriately reduced rolling pressure, reasonable choose to feed. 4. Plate surface peeling when applying excessive amounts of roll or roller, roller and the sign of the contact area is too small, roller installation Angle is too large will cause surface peeling phenomenon, such as the situation more serious will cause the generation of waste, must adjust the pressure and speed to avoid the sign in the production of peeling defects. Sign production process rolling pressure whether it is right choice, on the surface roughness after rolling, size, accuracy have influence. Under normal circumstances, the rolling pressure increases, the surface roughness increased. But roll pressure increases to a certain extent, the surface roughness is no longer increased. If it continues to increase, the roll surface began to deteriorate, appear even crack.