摘要
钢管厂要求管坯的重量公差为±1%。这不仅是对管坯直径公差有较高的要求,而且要求管坯全长直径偏差控制在±1mm 范围内,否则无法实现钢管厂火焰切割机最佳化分切工艺。为此通过 PLC 对6VH 连轧机推拉钢轧制进行控制,对不同钢种采用微张力或微推力轧制,从而将管坯全长直径偏差控制在要求范围内。
The seamless Tube Plant requires billets with 1% tolerance by weight.It means that the bi-llets should meet not only the requested diameter tolerance,but also deviation in diameter within±1mm longitudinally.Otherwise the flame cutting machine in the tube plant can't work satisfa-ctorily.For this reason the push pull control was adopted in 6VH billet rolling by means of PLC,ie slight pull or slight push according to the steel grade,and the longitudinal deviation in diame-ter has been controlled within the range prescribed by the standard.
出处
《钢铁》
CAS
CSCD
北大核心
1990年第1期28-29,44,共3页
Iron and Steel
