日本千叶厂3号热轧机是世界上最早的无头轧制轧机，由于无头轧机轧制头尾过程稳定，特别适合薄带钢的稳定轧制。三板厚控制主要功能（1）轧机刚性可变控制由轧制负荷、弯辊负荷变化引起轧机延伸变化，采用液压压下控制装置，以lins高响应速度取样，修正液压压下位置，减少对板? Japan’s Chiba Plant No. 3 hot-rolling mill is the world’s first endless rolling mill, head and tail rolling mill headless process is stable, especially for the steady rolling thin strip. The main function of the three-plate thickness control (1) mill rigid variable control by the rolling load, bending load changes caused by rolling mill extension changes, the use of hydraulic pressure control device, lins high response speed sampling, correction of hydraulic pressure position, reduce the board ?