In order to maintain a uniform temperature in the longitudinal direction of the stainless steel plate, it is necessary to use a specific control process for the head and tail of the steel plate, and to physically separate the longitudinal direction of the steel plate. During the cooling process, the steel plate is tracked segmentally, and then the steel plate is separated according to different areas. Segment temperature differences, fine-tuning to deal with inappropriate cooling control parameters.

Such a treatment method can effectively control the fluctuation of abnormal temperature on the surface of stainless steel plates.

In addition to controlling the temperature in the longitudinal direction, the temperature in the width direction of the stainless steel plate should also be kept uniform. The specific method is to ensure the water output in the middle and sides of the cooling device and the shielding of the sides.

Specifically, the water output in the middle and the edges is designed to be different, that is, the temperature in the width direction is uniform because the upper header uses horizontally uneven water distribution to produce a convex water distribution. The data shows that when the water flow at the edge of the stainless steel plate When the speed is about 75% of the center, similar requirements for uniform lateral cooling can be achieved.

In addition, since the cooling of the edge of the stainless steel plate not only ensures that the water flow is reduced, but also ensures that the edge is cooled to a certain extent. To achieve these two requirements at the same time, edge shielding can be used, which is the position of each shielding baffle. Arrange them in a staggered manner, and use the edge temperature drop position as a reference to arrange them left and right.

In addition to temperature uniformity in the length and width directions, the temperature uniformity in the thickness direction of the stainless steel plate also needs to be considered. To ensure uniform temperature in this direction, you must first understand that the temperature gradient in the thickness direction is determined by the cooling environment and material material. Therefore, after these two factors are determined, if you want to control the temperature gradient in the thickness direction of the stainless steel plate, you need to change the cooling conditions, that is Rely on reducing the cooling rate and slow cooling to achieve the goal.

Scientifically controlled cooling will improve the organization of stainless steel plates. It will enhance the toughening effect of the stainless steel plate, further refine the ferrite, evenly distribute pearlite, and eliminate band-shaped pearlite, easily generating fine bainite structure.

If an appropriate cooling process is combined with the rolling production, the strength of the stainless steel plate can be effectively improved without damaging the toughness of the stainless steel plate.