Method for replacing working roll of hot continuous rolling finishing mill group

• Main Authors: XING CHANGZHUO, FU QINGCAI, HE QUANZHI, LIU DASHUAI, WANG WEIXING, WANG DAWEI, DENG PENGZHAO
• Format: Patent
• Language: Chinese; English
• Published: 07.03.2023
• Subjects: MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; ROLLING OF METAL; TRANSPORTING

The invention provides a method for replacing a working roll of a hot continuous rolling finishing mill group, which comprises the following steps of: 1, before adjusting an upper step pad, after starting an upper working roll descending program, additionally arranging a first delay starting program to start an upper supporting roll descending program; 2, when it is detected that the pressure of the upper supporting roll balance cylinder and the pressure of the upper working roll balance cylinder are zero at the same time, an upper step pad removing program is started; thirdly, after the upper step pad is adjusted and the upper supporting roller rising program is started, a second delay starting program is additionally arranged to start the upper working roller rising program; fourthly, after it is detected that the pressure of the upper supporting roll balance cylinder and the pressure of the upper working roll balance cylinder reach the preset pressure, the follow-up roll changing step is started. The metho