Automatic purging system and method for aluminum strip mill

Abstract

The invention discloses an automatic purging system for an aluminum strip mill. The automatic purging system comprises an oil film thickness monitoring device, a remote control center, the mill and a purging device. The oil film thickness monitoring device, the remote control center and the purging device are sequentially connected. The oil film thickness monitoring device and the purging device are arranged on the mill. The mill comprises a mill body and an aluminum strip on the mill body. The automatic purging system can purge redundant oil in the cold rolling process of the aluminum strip and achieves remote control over the purging intensity through oil film thickness monitoring which is performed in advance. The invention further discloses an operation method of the automatic purging system for the aluminum strip mill, temperature monitoring for the aluminum strip and thickness monitoring for the redundant oil are achieved, the temperature of purging gas is controlled during heating, and therefore the redundant oil can be better blown off. The purging device can blow evenly within a large range, so the oil on the aluminum strip can be purged more evenly and thoroughly, and the purging effect is better.

Description

technical field [0001] The invention relates to the technical field of cold rolling mills, in particular to an automatic purging system and method for aluminum strip rolling mills. Background technique [0002] Aluminum strip refers to the aluminum strip or strip made of aluminum as the main raw material and mixed with other alloy elements. Aluminum strip is an important basic material for the development of my country's national economy and is widely used in aviation, aerospace, construction, printing, transportation, electronics , chemical, food, pharmaceutical and other industries. Driven by the rapid economic development, my country's investment in aluminum strips continues to heat up, and the consumption of aluminum strips continues to maintain a steady growth. The demand for exterior wall construction and interior decoration, aluminum foil manufacturing, printing, PS plate, manufacturing, home appliances, food packaging and other industries has further increased, becom...

AI Technical Summary

Problems solved by technology

The aluminum strip is rolled and formed by the rolling mill. The aluminum strip needs oil to cool and lubricate during the rolling process. The most important thing is to play a role in lubrication. However, when the aluminum strip is rolled, the thickness of the oil film is not uniform. There will be a lot of discarded excess oil. If these oils are not blown, they will leave marks and marks on the aluminum strip in the future, which will affect the quality of the finished product of the aluminum strip. It is necessary to use a blowing device to blow off the excess oil. , and make the thickness of the oil film on the aluminum strip evenly thinner

[0004] In the current rolling mill, there is a liquid blowing device at the outlet of the upper work roll and the lower work roll. The liquid blowing device blows the oil on the surface of the aluminum strip on both sides, but part of the oil is blown to the edge of the aluminum strip on both sides. Staying to the edge, and there is no oil film thickness monitoring device installed in front of the liquid blowing device, the blowing force and direction of the oil film blowing device are invariable, which leads to unsatisfactory purging results, and the temperature of the aluminum strip is also low. Determines the difficulty of purging the oil, so the current blowing device not only causes uneven distribution of purging power, but also cannot ensure uniform purging of the oil

Images