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| Influence of temperature on interference fit of entire roller embedded shapemeter roll |
| WU Hai-miao1，LIU Hong-min2，YU Bing-qiang2，YANG Li-po2 |
（1. College of Mechanical and Electrical Engineering，Hebei University of Engineering，Handan 056038，Hebei，China
2. National Engineering Research Center for Equipment and Technology of Cold Strip Rolling，Yanshan University，Qinhuangdao 066004，Hebei，China） |
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Abstract In the process of cold reversible strip flatness detected by entire roller embedded shapemeter roll， the contact condition of interference fit surface between the top surface of framework and the inner hole surface of roll body is affected by thermal deformation， so the cold strip flatness detection signal may be interrupted or even disappeared. For entire roller embedded shapemeter roll， the temperature differences and radial relative displacements of contact node pairs on the interference fit surface between the top surface of framework and the inner hole surface of roll body， were analyzed using the finite element technology in cold reversible rolling passes. The influences of temperature differences on radius relative displacements of the contact node pairs and the sensor pre-pressure were obtained. The results show that the maximum temperature difference of the contact node pair occurs in the third rolling pass， and most of radial relative displacements of contact node pairs exceed the value of interference fit， which makes the sensor pre-pressure be close to zero. So the transfer of pressure that the strip applied on the outer surface of shapemeter roll is seriously affected， and the shape measuring signal is interrupted.
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Received: 06 December 2015
Published: 26 July 2016
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2016, Vol. 51 
