Abstract: Disclosed is a rolling method for a board having various longitudinal thicknesses, comprising the following steps: 1) setting a number N of uniform-thickness segments of a sample, thicknesses h1, h2, . . . , hN of the uniform-thickness segments, lengths L1, L2, . . . , LN of the uniform-thickness segments, and lengths T1, T2, . . .

Abstract: Disclosed are a system and method for controlling a thickness of a hot-dip galvanized coating on a strip material with a continuously varying thickness. The system of the present disclosure is capable to provide a zinc coating with a uniform thickness on a coiled starting material with a continuously varying thickness, and the method of the present disclosure provides a simplified process to achieve such objective.

Abstract: Disclosed are a system and method for controlling a thickness of a hot-dip galvanized coating on a strip material with a continuously varying thickness.

Abstract: Disclosed are an automatic shearing apparatus for a cold-rolled plate of variable thickness, and a shearing method using the apparatus. The method comprises that: a thickness gauge (4) and a length-measuring device (3) are successively arranged in front of shears (5); and a control device identifies the profile of a strip material passing through the thickness gauge (4) according to length tracing data and measured thickness values, and determines the position of the strip material at the shears (5), simultaneously compares the profile with the set profile of a plate of continuously variable thickness, and decides the action time of the shears. The apparatus and the method can efficiently and accurately shear rolls of supplied materials of continuously variable thickness into plates of continuously variable thickness which can be directly used by a user.

Abstract: Disclosed is a rolling method for a board having various longitudinal thicknesses, comprising the following steps: 1) setting a number N of uniform-thickness segments of a sample, thicknesses h1, h2, . . . , hN of the uniform-thickness segments, lengths L1, L2, . . . , LN of the uniform-thickness segments, and lengths T1, T2, . . .

Abstract: The present invention relates to the field of strip cold rolling, and in particular to a thickness control method for strips in a tandem cold mill. Frame S1 and one or more additional frames are selected as virtual indirect measuring instruments for the strip performance. A load cell is provided on the frames that are selected as the indirect measuring instruments for the strip performance, and deformation resistance fluctuation of the supplied materials of the frame S is calculated. Finally, the feed-forward adjustment amount of each frame is calculated. The present invention measures the deformation resistance of each section of the strip of the supplied materials through the selected frame, reducing the fluctuation of the thickness of the finished products of the strip and ensuring stable rolling.

Abstract: The present invention relates to the field of strip cold rolling, and in particular to a thickness control method for strips in a tandem cold mill. A performance feed-forward thickness control method in a tandem cold mill comprises selecting one or more frames as virtual indirect measuring instruments for the strip performance, in which the frame S1 must be used as a virtual indirect measuring instrument for the strip performance; calculating the deformation resistance fluctuation of supplied materials, providing a load cell on the frames that are selected as the indirect measuring instruments for the strip performance, and obtaining the deformation resistance fluctuation of the supplied materials of the frame Si by calculation; finally, calculating the feed-forward adjustment amount of each frame.