Shatalov Roman Lvovich
Moscow Polytechnic University, Moscow, 115280, Russian Federation
Zagoskin Egor Evgenievich
Moscow Polytechnic University, Moscow, 115280, Russian Federation
The conditions of heating and cooling of piercing mandrels made of 4X5MFS steel of a three-roll screw mill 30-80 in the production of a closed cavity of steel vessels of small volume are determined. It is established that multiple cycles of heating up to 600 °C and cooling with water up to 80 °C for about 7 seconds/1 cycle lead to the formation of ridges, shells and cracks on the surface and in the volume of the tool. The loss of structural strength of the material leads to the breakdown of the mandrel during the stitching process. The technique and equipment of magnetic powder control have been developed to establish the dynamics of the growth of internal and external defects of mandrels. An equation is obtained that allows determining the increase in the number of defects in the sewing tool of a screw rolling mill. The technology of non-destructive testing made it possible to develop a rational plan for replacing the sewing mandrels, which allows for predicting the appearance of defects leading to a complex breakdown of the deforming tool at the NPO Pribor machine-building enterprise.
[1] Muhin, U., Belskij, S., Makarov, E., et al., 2016. Simulation of accelerated strip cooling on the hot rolling mill run-out roller table. Frattura ed Integrita Strutturale. 10(37), 305-311. Available from: https://www.fracturae.com/index.php/fis/article/view/1751
[2] Belskiy, S., Mazur, I., Lezhnev, S., et al., 2016. Distribution of linear pressure of thin-sheet rolling across strip width. Journal of Chemical Technology and Metallurgy. 51(4), 371-378.
[3] Orlov, D.A., Gamin, Y.V., Goncharuk, A.V., et al., 2021. Development and investigation of piercing process using cooled guide shoes. Metallurgist. 65(3-4), 389-399. DOI: https://doi.org/10.1007/s11015-021-01168-z
[4] Лубе, И.И., Трутнев, Н.В., Тумашев, С.В., et al., 2020. Повышение стойкости оправок прошивного стана при производстве бесшовных труб из нержавеющей стали мартенситного класса марки типа 13Сr в линии ТПА. ЧЕРНАЯ МЕТАЛЛУРГИЯ. (Russian) [Mastering of production of seamless pipes of type 13 Cr martensite class stainless steel at TPA 159-426 of JSC VTZ.] Бюллетень научно-технической и экономической информации. 76(12), 1259-1264. DOI: https://doi.org/10.32339/0135-5910-2020-12-1259-1264
[5] Zorin, I.V., Dubtsov, Y.N., Sokolov, G.N., et al., 2017. Piercing mandrel strengthening by surfacing with nickel aluminide-based alloy. IOP Conference Series: Materials Science and Engineering. 177(1), 012101.
[6] Shatalov, R.L., Zagoskin, E.E., Medvedev, V.A., 2023. Influence of temperature unevenness on hardness, structures and defects of the stitching mandrel of a three-roll screw rolling mill 30-80. Ferrous Metals. 3, 46-52. DOI: https://doi.org/10.17580/chm.2023.03.08
[7] Vydrin, A.V., Neroznikov, V.L., Zvonarev, D.Yu., et al., 2022. АНАЛИЗ ВЛИЯНИЯ НАСТРОЕЧНЫХ ПАРАМЕТРОВ ПРОШИВНОГО СТАНА НА ИЗМЕНЕНИЕ ДИАМЕТРА И ТОЛЩИНЫ СТЕНКИ ГИЛЬЗЫ (Russian) [Analysis of the influence of setting parameters washing machine on the change of case wall diameter and thickness]. Bulletin of the South Ural State University. Ser. Metallurgy. 22(1), 42-52. DOI: http://dx.doi.org/10.14529/met220105
[8] Tsubouchi, K., Akiyama, M., Okuyama, T., 1997. Development and optimization of carbide-reinforced tools and application to hot rolling of stainless steel. Journal of Tribology. 119(4), 687-693. DOI: https://doi.org/10.1115/1.2833870
[9] Shatalov, R.L., Medvedev, V.A., 2019. Effect of deformed workpiece temperature inhomogeneity on mechanical properties of thin-walled steel vessels during treatment in a rolling and pressing line. Metallurgist. 63(1-2), 176-182. DOI: https://doi.org/10.1007/s11015-019-00807-w
[10] Shatalov, R.L., Shelest, A.E., Medvedev, V.A., 2020. Electromagnetic device for nondestructive control of the mechanical properties of thin-walled steel vessels. Russian Metallurgy (Metally). (3), 259-264. DOI: https://doi.org/10.1134/S003602952003012X
[11] Romantsev, B.A., Aleshchenko, A.S., Tsyutsyura, V.Y., et al., 2017. Features of piercing mill TPA 50-200 working roll wear during rolling continuously-cast and hot-rolled billets. Metallurgist. 60, 1062-1069. DOI: https://doi.org/10.1007/s11015-017-0408-x
[12] Shatalov, R.L., Medvedev, V.A., 2022. Deformation temperature conditions providing prescribed property uniformity for steel vessels and a device for non-destructive control. Metallurgist. 65(9-10), 1117-1124. DOI: https://doi.org/10.1007/s11015-022-01254-w
[13] Shatalov, R.L., Medvedev, V.A., Bogdanov, S.V., 2022. Development and use of an electromagnetic unit for controlling the mechanical properties along the steel vessel height at the exit from a rolling—pressing line. Russian Metallurgy (Metally). (6), 628-633. DOI: https://doi.org/10.1134/S0036029522060210
[14] Gamin, Y.V., Skripalenko, M.M., Romantsev, B.A., et al., 2021. Prediction of billet fracture at two-high screw rolling piercing. Metallurgist. 64, 1020-1028. DOI: https://doi.org/10.1007/s11015-021-01093-1
[15] Goncharuk, A.V., Gamin, Y.V., Sharafanenko, I.K., et al., 2020. Piercing of a billet in a mill with guide disks. Russian Metallurgy (Metally). 1637-1642. DOI: https://doi.org/10.1134/S003602952013011X
[16] Romantsev, B.A., Gamin, Y.V., Goncharuk, A.V., et al., 2017. Innovative equipment for producing cost-effective hollow billets for mechanical-engineering parts of small diameter. Metallurgist. 61, 217-222. DOI: https://doi.org/10.1007/s11015-017-0480-2
[17] Aleshchenko, A.S., Quang, N., 2022. Studying the wear resistance of the mandrels of a two-high screw rolling mill. Metallurgist. 66(5-6), 650-656. DOI: https://doi.org/10.1007/s11015-022-01372-5
[18] Iskhakov, R.V., Gamin, Y.V., Kadach, M.V., et al., 2020. Development of radial-shear rolling mill special stands for continuous cast billets deformation. IOP Conference Series: Materials Science and Engineering. 966(1), 012074. DOI: https://doi.org/10.1088/1757-899X/966/1/012074
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