管坯全長(zhǎng)直徑偏差的控制
CONTROL OF DIAMETER DEVIATIONS OVER THE FULL LENGTH OF BILLETS
-
摘要: 寶鋼無縫鋼管廠要求初軋廠提供的管坯重量公差在±1%之內(nèi),全長(zhǎng)直徑偏差不超過±1mm。為此,初軋廠采用PLC對(duì)6VH連軋機(jī)進(jìn)行推力、張力軋制控制,實(shí)現(xiàn)了微張力或微推力軋制,生產(chǎn)出重量和全長(zhǎng)直徑偏差都滿足要求的不同鋼種的管坯。Abstract: Roughing Rolling Works is required by Seamless Steel Works of Baoshan Complex to provide billets with weight tolerances not exceeding ±1% and diameter deviations less than ±1mm. For this reason, PLC is used in Roughing Rolling Works to control pushing and stretching forces of rolling on 6VH mandrel mill with the result of slight pushiag and stretching rolling obtained, therefore billets with various steel grades and with satisfied deviations of weight and diameter over full length can be produced.
下載: