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1. 发明授权

US07159642B2 Method and strand guide for supporting, guiding and cooling casting strands made of steel, especially preliminary sections for girders 失效
标题翻译：用于支撑，引导和冷却由钢制成的铸造股线的方法和线引导件，特别是用于桁材的初步部分
公开(公告)号：US07159642B2
公开(公告)日：2007-01-09
申请号：US10344208
申请日：2001-08-07
申请人： Adolf Gustav Zajber , Dirk Letzel , Wilfried Milewski , Thomas Fest , Heinz-Dietrich Schneider , Lothar Fischer , Herbert Brotzki
发明人： Adolf Gustav Zajber , Dirk Letzel , Wilfried Milewski , Thomas Fest , Heinz-Dietrich Schneider , Lothar Fischer , Herbert Brotzki
IPC分类号： B22D11/124
CPC分类号： B22D11/1282 , B22D11/009 , B22D11/1246
摘要： A method and strand guide for supporting, guiding and cooling casting strands (1) made of steel, especially preliminary sections (2) for girders, which are cooled by injected water (29) and are drawn, serve to prevent cracks, especially surface cracks, from appearing in the microstructure by adapting the cooling conditions of the surface of the strand in the region of the secondary cooling, and serve to prevent undercooling of the strand shell, wherein in order to avoid an undesirable solidification structure on the upper flange edges or in other cross-sectional areas, the cooling and support of the beam blank format are so adapted to the solidification range that cooling and support are provided exclusively where a crater is formed. To this end, the casting strand (1) is cooled, by guiding the temperature in a specific manner in upper supporting segments (5, 6, 7), by means of spray-water jets the width of which at least matches the length of the supporting rollers on longitudinal and transversal sides (13, 14) of the cross section (1a) of the casting strand, and is decreasingly supported in an analogous manner with respect to the length of the casting path and the cooling state in core areas (15) of the cross section (1a) of the casting strand on the transversal sides (14) of said casting strand cross-section (1a) so that cooling occurs exclusively by means of water jets (8) which are oriented towards said core areas (15).
摘要翻译：一种用于支撑，引导和冷却由钢制成的铸造线（1）的方法和线引导件，特别是由喷射水（29）冷却并被拉伸的用于桁材的预备部分（2），用于防止裂纹，特别是表面裂纹通过使二次冷却区域中的绞合线的表面的冷却条件适应于微结构，并且用于防止绞线壳的过冷，其中为了避免在上凸缘边缘上的不期望的凝固结构或在其他横截面区域中，梁坯料的冷却和支撑适用于仅在形成火山口的情况下提供冷却和支撑的凝固范围。为此，通过将喷射线（1）的长度至少匹配的喷水喷射器以特定的方式引导到上支撑段（5,6,7）中来冷却铸造线（1）在铸造线的横截面（1a）的纵向和横向侧（13,14）上的支撑辊，并且以类似的方式相对于铸造路径的长度和芯部区域中的冷却状态减少支撑（1a）的铸造横截面（14）上的铸造线的横截面（1a）的横截面（15），使得仅通过水射流（8）进行冷却，喷水核心区域（15）。

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