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| Development of emulsion pipeline direct mixed lubrication system in double cold reduction mill |
| BAI Zhen-hua1,2, CUI Ya-ya1,3, LI Xiu-jun1, XIA Yi-wei1 |
1. National Engineering Research Center for Equipment and Technology of Cold Strip Rolling, Yanshan University,Qinhuangdao 066004, Hebei, China;
2. State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, Hebei, China;
3. College of Mechanical and Equipment Engineering, Hebei University of Engineering, Handan 056038, Hebei, China |
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Abstract The traditional direct application system can only online adjusting the emulsion flow,but cannot online adjusting the emulsion flow and concentration simultaneously,resulting in the rolling instability,poor strip thickness and flatness quality,high rolling energy and oil consumption cost during the steel grade change,rolling acceleration and deceleration in the double cold reduction mill. Combing with the equipment and technological characteristics of the double cold reduction mill,the key equipment of the emulsion pipeline direct mixed lubrication system was optimizing selected on the developed experimental platform. Thus,the design method of the emulsion pipeline direct mixed lubrication system in the double cold reduction mill was proposed. Moreover,the emulsion properties of the mixing tank agitation and the pipeline direct mixing were compared. Then,this lubrication system was applied in a 1 220 double cold reduction mill,with the rolling stability,strip thickness,flatness quality effectively improved,and the rolling energy and oil consumption cost reduced.
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Received: 21 February 2019
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2020, Vol. 55 
