Abstract
The main parameter that determines the quality of rolled products is the accuracy of geometric dimensions. The accuracy of the pipe wall thickness is characterized by the nominal value and the range of permissible values, i.e., the tolerance range. To obtain the nominal values of the pipe wall thickness in the rolling mill, the same roll profile (groove system) and a limited pool of diameters of cylindrical mandrels are used. Based on the diameter of rolling mandrels selected from the existing database and the need to obtain the nominal thickness of the pipe wall, the position of the rolls in the stands of the finishing group is determined, which determines the actual accuracy of wall thickness. The article presents an algorithm for calculating the rational diameters of cylindrical mandrels and provides some results of pilot testing of this technical solution.
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Translated from Metallurg, No. 11, pp 114–117, November 2023. https://doi.org/10.52351/00260827_2023_11_114
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Chernykh, I.N., Ulyanov, A.G., Trubnikov, K.V. et al. Rational use of rolling mill mandrels. Metallurgist (2024). https://doi.org/10.1007/s11015-024-01668-8
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DOI: https://doi.org/10.1007/s11015-024-01668-8