Friction coefficient forecasting and setting method for cold-continuous-rolling high-speed rolling process

Abstract

The invention is a method for forecasting and setting friction coefficient in the cold continuous rolling high speed rolling course, executing on computer system the following steps of: a. collecting main equipment parameters of a cold continuous roller specific frame; b. collecting main lubricating process parameters of the cold continuous roller specific frame; c. collecting n groups of actual rolling process parameters of the cold continuous roller specific frame; d. according to the field experimental data of a specific leveler, establishing a plate surface roughness forecasting model for the specific leveler; e. using a, b as friction coefficient mechanism model parameters and to-be-found variants, constructing a friction coefficient mechanism model reflecting basic function relation between friction coefficient and lubricating oil film thickness; f. substituting the friction coefficient mechanism model parameters into a function equation reflecting relation between friction coefficient and lubricating oil film thickness and obtaining a friction coefficient forecasting and setting model in the cold continuous rolling high speed rolling course; and g. on-line forecasting and setting the friction coefficient in the cold continuous rolling high speed rolling course.

Description

technical field [0001] The invention relates to the field of cold tandem rolling production technology, in particular to a method for predicting and setting the internal friction coefficient of roll gaps in the high-speed rolling process of tandem cold rolling. Background technique [0002] The continuous cold rolling process is shown in Figure 1. The strip 1 is uncoiled from the uncoiler 2 and sent to the frame 3#~3i. After being rolled by multiple stands, the strip 1 reaches the specified thickness and is sent to the coil. Take machine 4 and rewind. The rolls of each stand include backup rolls 4 and work rolls 5 , wherein the work rolls 5 are in direct contact with the surface of the strip 1 . [0003] According to on-site production experience, it can be known that in the process of continuous cold rolling, the main factors affecting the friction coefficient are pass reduction rate, rolling speed, thickness of the entrance and exit of the frame, strip deformation resista...

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Problems solved by technology

For research in this area, the former Soviet Union actually started in the 1970s, but did not make significant progress. The main literature can be found in "Rolling Process" published by Metallurgical Industry Press in 1981.8, translated by Li Xiaoyu and Gu Zhengqiu. Lubrication" book, since then no foreign literature with substantial breakthroughs in this area has been retrieved

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