The effect of hot-rolled stainless steel NO.1 surface roll printing on the manufacturing of wine irrigation industry/users are purchasing a 304 stainless steel hot-rolled NO.1 industrial coil in a steel plant, using the hot-rolled industrial coil to directly trim and open the flat ruler, used to make beer Jiuguan found irregularities on the surface of the 304 strip during the manufacturing process, and filed a quality complaint with the steel mill. On-site physical situation: After receiving complaints from users, the steel plant first understands the process of manufacturing beer and wine pouring. From the surface of the fixed-length steel plate, the defects are periodic and bulge along the width of the strip, which has a more obvious feel. The batch of stainless steel industrial plates are used for the production of beer clearing irrigation, directly Kaiping, according to the diameter and length of the beer filling set by the beer manufacturer, the hot-rolled and cold-rolled stainless steel plates have been opened, and the middle and thin stainless steel plates are compound welded and processed. Into wine. Stainless steel 304 strip steel can use honeycomb welding and channel fusion welding in the process of making cans. Due to the defects of periodic roll printing of stainless industrial plates, hot-rolled and cold-rolled steel strips are formed during the compound fusion welding process. For false fusion welding, after re-fusion welding, 30 kg water test is used at the same time, and then liquid ammonia cooling test is performed. Every interval has a certain interval. Periodicity: symmetry in the width direction of the upper and lower surfaces occurs at the same time: the plate surface is convex, and it has a more obvious feel: this type of periodic roller printing defects are generated in the hot rolling production process, not cold rolling pickling The process occurs. The reason for the repair welding of the roll printing: the roll is pressed against or impacted by the low temperature of the head of the hot rolled strip, and the surface hardness of the roll is reduced. Since the strength of the stainless steel strip is higher than that of the roller surface, the strip-shaped defects left on the roller surface due to the huge impact at the moment of biting the steel cannot be eliminated due to the relatively small amount of relative reduction of the finished frame. In the process of rolling stainless steel strip, a mathematical model is used to control the amount of cooling water in the roll, to increase the temperature of the bite of the head of the finished strip and to reduce the impact on the roll. After grinding the exchanged finishing work roll, the hardness of the roll surface should be measured to ensure the hardness of the roll surface.