Innovative technology to reduce fracture of large steel castings which are essential to railway transport
Автор: Toirov O.T., Tursunov N.Q., Qochqorov L.A., Valiyeva D.Sh.
Журнал: Теория и практика современной науки @modern-j
Рубрика: Основной раздел
Статья в выпуске: 1 (91), 2023 года.
Бесплатный доступ
Using the ProCast software, an analysis was made of the manufacturability of the gating system used in the existing production in the manufacture of the casting "Side frame" of railway cars. A special feature is the presence of an extended horizontal collector and underwater metal to the end parts of the casting. The disadvantage of such a gating system is that the filling of the entire mold with liquid metal is carried out through the end parts of the casting prone to cracking. At the same time, two counter flows accumulate in the intended form, their merging in the middle parts of the casting in a cooled and highly contaminated state, since the process in filling part of the flow is collected along the path of sand inclusions, oxidized and saturated with hydrogen. These factors are a prerequisite for the formation of various defects in castings. Due to problems, a new gating system technology was proposed, which was analyzed in the ProCast program. In the process of analysis, the most optimal solution for the gating system was deduced.
Короткий адрес: https://sciup.org/140297167
IDR: 140297167
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