Work roll with steel rim drop-control and flat degree control

Abstract

The invention provides a working roller integrating functions of edge drop control and flatness control of strip steels. The working roller is implemented by grinding one side of a flat roll into continuous variable tapered structure. The tapered structure comprises three sections, wherein the first section is an edge drop control curve process section, the second section is an edge drop control tangent process section and the third section is a structural taper section. The edge drop control curve process section is tangent to the edge drop control tangent process section. The edge drop control tangent process section is intersected with the structural taper section. The invention achieves the smooth transition of the roll shape curve. Additionally, the working roller overcomes severe failures such as asymmetric stress on the roller due to the difference in wear damage of the upper and the lower working rollers and deviation of strip steel, asymmetry in edge drop control, and instable operations of edge trimming and breakage of strip steel during the edge drop control rolling process. Furthermore, the invention can continuously change the taper degree, facilitate the continuous control of the edge drop control of strip steels and avoid wave defects to ensure the edge flatness of strip steel.

Description

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AI Technical Summary

Benefits of technology

This patented technical solution described in this patents allows for precise adjustment or shaping of the edges of two sides of a hot metal sheet without causing damage or degradation. It eliminates the need for cutting tools like knives while maintaining good surface roughness characteristics. Additionally, the design prevents uneven heat distribution along certain areas of the hot metal roll, improving its coolability and prevention from corrosion. Overall, these improvements enhance the overall functionality and productivity of the Hot Metal Mill's Roll Grounding Compact Head (SCWC).

Problems solved by technology

This patented describes various technical methods described in the prior art relating to reducing plate curl issues associated with cold weldability when producing very thin materials like aluminum alloys. These techniques involve controlling the movement of edges within specific areas of the material without increasing their size beyond acceptable limits. By doing these improvements, the quality of the final product may be improved even if there are variations in sheet thicknesses across the entire length of the blank. Additionally, the patents discuss how the design and operation cost of the CTRG roll increases because they require multiple passes undergo heat treatment processes.

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