天津钢铁集团有限公司炼轧厂中厚板工序为争取压力容器钢板的市场,首次承接7mm×2900mm规格Q345R钢板的轧制订单。中厚板工序常规生产规格最低为8mm,根据设备情况,7mm厚钢板的轧制由于钢板目标厚度太薄,轧制温降太大,低温轧制易导致钢板波浪的产生,具有较大的技术难度。2900mm宽钢板的轧制毛宽需满足热态3020mm以上,超宽钢板在轧制中由于两侧轧制力、辊缝的轻 Tianjin Iron & Steel Group Co., Ltd. rolling mill plate process for the fight for the pressure vessel steel plate market, for the first time to undertake the 7mm × 2900mm specifications Q345R steel rolling orders. The normal production specifications of plate processes minimum 8mm, according to the equipment, rolling 7mm thick plate due to the target thickness is too thin, the rolling temperature drop is too large, low temperature rolling can easily lead to the production of steel waves, with a larger technology Difficulty. 2900mm wide steel rolling width to meet the thermal state of 3020mm above, wide steel rolling in the rolling force on both sides, the light of the roll gap