Method for detecting uniformity of aluminum hot-rolled roller brush

Abstract

The invention provides a method for detecting the uniformity of an aluminum hot-rolled roller brush. The method comprises the following steps of: (1) stopping the operation of a working roller to enable the working roller to be in a standing state; (2) pressing the roller brush against the working roller by using driving force of 500-2000KN; (3) enabling the roller brush to rotate at the speed of0.5-3.0 m / s for the continuous operation time being 1-10 min; (4) removing the driving forces so as to enable the roller to return to the initial position; (5) pulling the working roller out of a rolling mill body, and detecting the widths of all brush marks of a roller body of the working roller in the length direction; and (6) judging the uniformity of the roller brush in the rolling process according to the change condition of the widths of the brush marks in the length direction of the roller body of the working roller. The method is reasonable in design, the roller surface quality of thealuminum alloy hot-rolled working roller, rolled strips and the roller brush condition are researched, the uniformity of the roller brush in the rolling process is judged through the brush marks of the roller brush on the working roller, and the rolling quality condition is judged.

Description

technical field [0001] The invention relates to a method for detecting the uniformity of an aluminum hot roll brush. Background technique [0002] The hot rolling of aluminum alloy has high rolling temperature and heavy rolling load, which will produce a large amount of aluminum powder. The film has high strength, which can protect the aluminum rolled strip and avoid direct contact with the roll, thus effectively ensuring the rolling quality. When the aluminum oxide film is thin, the rolling process is unstable, and aluminum sticking to the roll surface is prone to occur; when the aluminum oxide film is thick, slipping and over-lubrication are prone to occur. Therefore, the rolling process should ensure an appropriate thickness of the alumina layer. In order to achieve this state, the hot rolling work rolls, especially the hot finish rolling work rolls, are often equipped with roll brushes, usually on the exit side. Through the scrubbing action of the roller brush in the ...

AI Technical Summary

Problems solved by technology

However, because the roller brush is installed on the work roll, its actual use status cannot be observed during the rolling process, and it is difficult to characterize the stability and uniformity of the aluminum oxide film on the roll

This brings uncertainty to the use of roll brushes and the stability of rolled strip quality