At 1:30 p.m. on May 19, 2015, with the scene debugging personnel to press the start button, tianjin zhongwang aluminum industry co., LTD. "large and high precision aluminum and aluminum alloy processing material" project 4500 mm hot roughing mill of two 7000 kw main motor starts, after nearly two hours of continuous operation, the main motor various monitoring indexes showed normal, realize the main motor no-load running smoothly, for the equipment into the trial production phase took a solid step.

    Since April 2015, the 4500 mm hot roughing mill electrical debugging work is in full swing, after construction, foreign experts, zhongwang employees of hard fighting, try to overcome short time limit for a project, task, requirement of higher difficulties, successively carried out safety system, medium system, control system and main motor system and so on empty load debugging.At present, the main motor is running with empty load, and the staff will optimize the control parameters to ensure the static index and dynamic quality of the mill to reach the excellent level.The following will carry out the load adjustment of the rolling mill as planned to prepare for the trial production in the second half of this year.

    4500mm hot roughing mill is an international advanced four-high reversible broad and thick plate mill, introduced from Germany SMS equipment, is the key equipment in the wide plate production line.The roughing mill is equipped with automatic thickness control system, automatic profile crown control system, automatic temperature control system and hot rolling process control system. All these systems adopt digital display and computer program control, which provide guarantee for the production of high quality wide and thick plate products.