title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¿ÑÐ¸ÑÐ¸Ð½ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð´ÐµÑÐµÐºÑÐ¾Ð² Ð¿Ð¾Ð²ÐµÑÑ Ð½Ð¾ÑÑÐ¸ ÑÐ¸Ð¿Ð° Â«Ð¼Ð¾ÑÑÐ¸Ð½Ð°Â» Ð¿ÑÐ¸ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²Ðµ ÐºÑÑÐ³Ð»Ð¾Ð³Ð¾ Ð¿ÑÐ¾ÐºÐ°ÑÐ° Ð¸Ð· Ð¿ÑÑÐ¶Ð¸Ð½Ð½ÑÑ Ð¼Ð°ÑÐ¾Ðº ÑÑÐ°Ð»Ð¸ Ð½Ð° ÑÑÐ°Ð½Ðµ 350 ÐÐÐ Â«Ð¡ÐµÐ²ÐµÑÑÑÐ°Ð»ÑÂ»
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Investigation of the reasons for the formation of surface wrinkle defects in the production of round steel bar from spring steel grades at mill 350 of PJSC âSeverstalâ
Creators: name: ÐÐ°Ð»ÑÑÐµÐ²Ð°, ÐÐ»Ð°Ð´Ð¸ÑÐ»Ð°Ð²Ð°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: ÐÑÐ¾ÐºÐ°ÑÐºÐ° Ð¼ÐµÑÐ°Ð»Ð»Ð¾Ð²
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description: ÐÐ¾Ð¼Ð¸Ð¼Ð¾ Ð½ÐµÐ¿Ð¾ÑÑÐµÐ´ÑÑÐ²ÐµÐ½Ð½Ð¾ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¿ÑÐ¸ÑÐ¸Ð½ Ð²Ð¾Ð·Ð½Ð¸ÐºÐ½Ð¾Ð²ÐµÐ½Ð¸Ñ Ð´ÐµÑÐµÐºÑÐ¾Ð², ÑÐ°Ð±Ð¾ÑÐ° Ð±ÑÐ»Ð° Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð° Ð½Ð° ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÑ ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¹ Ð¿Ð¾ ÑÐ½Ð¸Ð¶ÐµÐ½Ð¸Ñ Ð²ÐµÑÐ¾ÑÑÐ½Ð¾ÑÑÐ¸ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð´ÐµÑÐµÐºÑÐ¾Ð² ÑÐ¸Ð¿Ð° Â«Ð¼Ð¾ÑÑÐ¸Ð½Ð°Â» Ð¿ÑÐ¸ Ð¿ÑÐ¾ÐºÐ°ÑÐºÐµ ÐºÑÑÐ³Ð¾Ð² â32, 50 Ð¸ 100 Ð¼Ð¼ Ð¸Ð· ÑÑÐ°Ð»Ð¸ 60Ð¡2Ð¥Ð¤Ð Ð½Ð° ÑÑÐ°Ð½Ðµ 350. Ð§ÑÐ¾Ð±Ñ ÑÐµÑÐ¸ÑÑ Ð¿Ð¾ÑÑÐ°Ð²Ð»ÐµÐ½Ð½ÑÐµ Ð·Ð°Ð´Ð°ÑÐ¸, ÑÐ°Ð±Ð¾ÑÐ° Ð±ÑÐ»Ð° ÑÐ°Ð·Ð±Ð¸ÑÐ° Ð½Ð° ÑÑÐ°Ð¿Ñ: Ð°Ð½Ð°Ð»Ð¸Ð· Ð½Ð°ÑÑÐ½Ð¾Ð¹ Ð»Ð¸ÑÐµÑÐ°ÑÑÑÑ Ð¿Ð¾ ÑÐ°ÑÑÐ¼Ð°ÑÑÐ¸Ð²Ð°ÐµÐ¼Ð¾Ð¹ Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼Ð°ÑÐ¸ÐºÐµ; ÑÐ¾ÑÐ¼ÑÐ»Ð¸ÑÐ¾Ð²ÐºÐ° Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ Ð³Ð¸Ð¿Ð¾ÑÐµÐ· Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð´ÐµÑÐµÐºÑÐ° ÑÐ¸Ð¿Ð° Â«Ð¼Ð¾ÑÑÐ¸Ð½Ð°Â» Ð½Ð° ÑÐ¾ÑÑÐ¾Ð²Ð¾Ð¼ Ð¿ÑÐ¾ÐºÐ°ÑÐµ; Ð¸Ð·ÑÑÐµÐ½Ð¸Ðµ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ Ð¿ÑÐ¾ÐºÐ°ÑÐºÐ¸ ÐºÑÑÐ³Ð¾Ð² â32, 50 Ð¸ 100 Ð¼Ð¼ Ð¸Ð· ÑÑÐ°Ð»Ð¸ 60Ð¡2Ð¥Ð¤Ð Ð¸ ÐµÐµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð² Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ðµ Deform-3D; Ð¿ÑÐ¾Ð²ÐµÑÐºÐ° Ð³Ð¸Ð¿Ð¾ÑÐµÐ· Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ð¸ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð½ÑÑ Ð¼Ð¾Ð´ÐµÐ»ÐµÐ¹ Ð¸ Ð²ÑÐ±Ð¾Ñ Ð¿Ð¾Ð´ÑÐ¾Ð´ÑÑÐµÐ¹; ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¹ Ð¿Ð¾ ÑÑÑÑÐ°Ð½ÐµÐ½Ð¸Ñ Ð´ÐµÑÐµÐºÑÐ¾Ð² ÑÐ¸Ð¿Ð° Â«Ð¼Ð¾ÑÑÐ¸Ð½Ð°Â» Ð½Ð° ÐºÑÑÐ³Ð»Ð¾Ð¼ Ð¿ÑÐ¾ÐºÐ°ÑÐµ. ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¿ÑÐ¸ÑÐ¸Ð½ Ð¿Ð¾Ð´ÑÐ²ÐµÑÐ´Ð¸Ð»Ð¾ Ð³Ð¸Ð¿Ð¾ÑÐµÐ·Ñ Ð¾ ÑÐ¾Ð¼, ÑÑÐ¾ Ð½Ð°Ð¸Ð±Ð¾Ð»ÐµÐµ Ð²ÐµÑÐ¾ÑÑÐ½Ð¾Ð¹ Ð¿ÑÐ¸ÑÐ¸Ð½Ð¾Ð¹ Ð²Ð¾Ð·Ð½Ð¸ÐºÐ½Ð¾Ð²ÐµÐ½Ð¸Ñ Ð´ÐµÑÐµÐºÑÐ° ÑÐ¸Ð¿Ð° Â«Ð¼Ð¾ÑÑÐ¸Ð½Ð°Â» ÑÐ²Ð»ÑÐµÑÑÑ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð½Ð°Ñ ÑÐ½ÐµÑÐ³Ð¸Ñ Ð¿Ð»Ð°ÑÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð´ÐµÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸, Ð½Ð°ÐºÐ¾Ð¿Ð»ÐµÐ½Ð½Ð°Ñ Ð¿Ð¾Ð²ÐµÑÑÐ½Ð¾ÑÑÐ½ÑÐ¼ ÑÐ»Ð¾ÐµÐ¼ Ð¼ÐµÑÐ°Ð»Ð»Ð° Ð²Ð¾ Ð²ÑÐµÐ¼Ñ Ð¿ÑÐ¾ÐºÐ°ÑÐºÐ¸. Ð ÑÐ°Ð±Ð¾ÑÐµ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ñ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ñ Ð¿ÑÐµÐ´ÐµÐ»ÑÐ½Ð¾Ð¹ ÑÐ½ÐµÑÐ³Ð¸Ð¸ Ð´ÐµÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð¸ÑÐ¿ÑÑÐ°Ð½Ð¸ÑÑ Ð½Ð° ÑÐ°ÑÑÑÐ¶ÐµÐ½Ð¸Ðµ Ð´Ð¾ ÑÐ°Ð·ÑÑÐ²Ð°. Ð ÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¸ Ð¿Ð¾ ÐºÐ¾ÑÑÐµÐºÑÐ¸ÑÐ¾Ð²ÐºÐµ ÑÐµÐ¶Ð¸Ð¼Ð¾Ð² Ð¿ÑÐ¾ÐºÐ°ÑÐºÐ¸ Ð±ÑÐ»Ð¸ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ñ Ð½Ð° ÑÐ¼ÐµÐ½ÑÑÐµÐ½Ð¸Ðµ ÑÐ°Ð±Ð¾ÑÑ Ð´ÐµÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸ Ð² Ð¿ÑÐ¾ÑÐ¾Ð´Ð°Ñ, Ð³Ð´Ðµ ÑÑÐ° ÑÐ°Ð±Ð¾ÑÐ° Ð¿ÑÐµÐ²ÑÑÐ°ÐµÑ ÐºÑÐ¸ÑÐ¸ÑÐµÑÐºÑÑ. Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ ÑÐ´Ð°Ð»Ð¾ÑÑ Ð·Ð½Ð°ÑÐ¸ÑÐµÐ»ÑÐ½Ð¾ ÑÐ½Ð¸Ð·Ð¸ÑÑ ÑÐ°Ð±Ð¾ÑÑ Ð´ÐµÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸ Ð¿ÑÐ¸ Ð¿ÑÐ¾ÐºÐ°ÑÐºÐµ â32, 50 Ð¸ 100 Ð¼Ð¼ Ð¸Ð· ÑÑÐ°Ð»Ð¸ 60Ð¡2Ð¥Ð¤Ð. Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð½ÑÐµ ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¸ 6 Ð½Ð°ÑÐ¾Ð´ÑÑÑÑ Ð½Ð° ÑÑÐ°Ð´Ð¸Ð¸ Ð¿ÑÐ¾Ð¼ÑÑÐ»ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð°Ð¿ÑÐ¾Ð±Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð² ÑÑÐ»Ð¾Ð²Ð¸ÑÑ ÐÐÐ Â«Ð¡ÐµÐ²ÐµÑÑÑÐ°Ð»ÑÂ».
description: In addition to investigating the reasons for formation of surface defects, the work was aimed at developing ways to eliminate surface wrinkle defect in rolling rounds â32, 50 and 100 mm from steel 60C2CrVA on a mill 350. To do this, the work was divided into stages: analysis of the experience of other researchers in solving a similar problem; formulation of hypotheses the for-mation of a wrinkle defect on bars; study of the technology of rolling rounds â32, 50 and 100 mm from steel 60C2CrVA and their modeling in the Deform-3D pro-gram; testing hypotheses based on the developed models and choosing the appro-priate one; preparation of recommendations for the elimination of wrinkle on round rolled products. The study of the reasons confirmed the hypothesis that a wrinkle-type defect is formed due to the increased energy of plastic deformation obtained by the surface layer of the metal during rolling. The search for the value of the limiting work of deformation was carried out on tensile tests with rupture. The recommendations were created with the aim of reducing the work of deformation in the passages where this work exceeds the critical one. The developed 7 recommendations are at the stage of industrial testing in the conditions of PJSC âSeverstalâ.