A method for preventing carbon black accumulated at the edge of casting rolls from falling off and pressing into the casting plate

Abstract

The invention discloses a method for preventing carbon black accumulated at the edge of a casting roll from falling off and being pressed into a cast-rolled plate, belonging to the technical field of aluminum processing, including thoroughly cleaning the carbon black accumulated parts on both sides of the casting roll before production, and purging the pipe during the casting-rolling production. There are four steps: purging the roll surface, inspecting the upper and lower surfaces of the cast-rolled plate before rolling up and dealing with the problem, and turning on the vacuum cleaner to collect the carbon black on the edge of the cast-rolled roll every time 3-5 rolls are rolled. Through the implementation of the above steps, it is avoided that the carbon black accumulated at the edge of the casting roll is pressed into the cast-rolled sheet after falling off, thereby ensuring the product quality of the cast-rolled sheet. The invention considers many aspects, avoids the impact of carbon black shedding on the cast-rolled sheet to the greatest extent, reduces the labor intensity of the operator, and improves the production efficiency. The method of the invention has the characteristics of simple operation method, less investment and good effect of removing the carbon black adhered in the roll rolling area.

Description

technical field [0001] The invention relates to the technical field of aluminum processing, in particular to a method for preventing carbon black accumulated at the edge of a casting roll from falling off and being pressed into a casting plate. Background technique [0002] In the casting and rolling production process, a spraying device is needed. The spraying device sprays the carbon black produced by the incomplete combustion of the spray gun flame evenly onto the roll surface of the casting roll to form a lubricating layer, thereby avoiding the sticking of the aluminum liquid to the roll. During the spraying process, carbon black is inevitably sprayed outside the rolling area of ​​the roll surface. The carbon black located in the rolling area of ​​the roll surface is consumed during the casting and rolling process, while the carbon black located outside the rolling area of ​​the roll surface continues to accumulate and thicken, forming carbon black accumulation layers lo...

AI Technical Summary

Problems solved by technology

There are many black spots in the plate head area. After rolling in the downstream process, defects such as black threads and black stripes will appear, which have a great impact on product quality.

Images