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Information × Registration Number 0213U005812, 0113U002805 , R & D reports Title Perfection of the production technology of the carbon rolled wire for the purpose of elimination defects, resulting increased brittleness popup.stage_title Head Trotsan A. I., Доктор технічних наук Registration Date 25-07-2013 Organization Frantzevich Insitute for Materials Science Problems of the Ukranian National Academy of Sciences popup.description2 Based on the research found that the occurrence of brittle fracture in steel 85 due to the following main factors: low content of Si and the contraction ratio; increased by 40 - 50% of microhardness in the shattering zone, at the destruction surface; certified as the "black break" two types of allocations - "gray film" containing O, C, P, S, Cu and "black sites" that contain significant amounts of O, C, Al, Si, P, S, Zn, Pb, Cu, and oxygen content (up to 55 - 65%) is the ultimate in both cases; accompanied by gusts rolled wire bubbles and their groups, and the high content of Sn, Sb, Zn and Pb in the metal near the zone of destruction. To reduce the formation of impulses should: maintain the contents of Si on the upper level (0,20 ... 0,24 % Si), which provides a more efficient deoxidation; reduce the Cu content in the steel to <0.03 % and the impurities of nonferrous metals to per-missible values; maintain contraction ratio in steel at > 25%; prevent periodic distur-bances technology on rolling mill 150, which can cause local crack and defamation. Product Description popup.authors Бєлов Б.Ф. Бродецький І.Л. Бурдинюк Н.І. Каверинський В.В. Крейденко Ф.С. Сухенко З.П. Шермейстер М.А. popup.nrat_date 2020-04-02 Close