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熔融态下掺入粉煤灰对钢渣性质的影响研究甄云璞1,宗燕兵1,苍大强1,陈广言2,丁陈来2(1.北京市北京科技大学2.马鞍山钢铁股份有限公司,安徽马鞍山 243000)摘 要:在实验室,高温炉重熔钢渣,通过QM-ISP2行星式球磨机粉磨后,对比钢渣75μm晒下量;测定f-CaO含量,以及分析改性钢渣的矿相,研究其在高温下成分改性对改善钢渣易磨性和稳定性的作用效果和作用机理,确定粉煤灰是一种改善钢渣应用性能的优良改性剂,解决了钢渣应用中的不稳定性和易磨性差问题.该技术的研究可为寻求大量应用钢渣的途径,开发出高质量的钢......
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Determination of strain criterion of Portevin–Le Chatelier effect for aluminum alloy sheets WAN Min(万 敏)1, HAN Jin-quan(韩金全)1, JIN Hai-xia(金海霞)1, WU Hui(伍 惠)2, DONG Jin-liang(董锦亮)2, LI Bing(李 兵)2..., but it consequentially reduces the shape fixability of skin parts. Hence, an accurate criterion is required in mirror skin forming to avoid the slip lines ocurring. It is one of key issues in aluminum mirror......
; 文献标志码:A 文章编号:1672-7207(2019)05-1119-08 Water inrush mechanism for slip instability of filled... and Technology, Xuzhou 221116, China) Abstract: In order to investigate the water inrush mechanism for slip instability of filled karst conduit in tunnels, a fundamental geological model......
the effectiveness. The matching template was of round structure. The center symmetric property of round template could make the algorithm have rotation invariant. The matching criterion function contained two... of real time of the tracking system. Key words: template matching; target recognition; differential; matching criterion 目标识别与跟踪技术在工业生产,智能交通,国防军事等诸多领域有着十分广泛的用途[1-4],因此也成为国内外研究的热点问题之一[5-7].由于目标识别与跟踪系统通常既要考虑......
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of extrusion molding of tungsten-based alloy powders based on linear D-P criterion LIU Wen-sheng1, LIU Yuan-biao1, MA Yun-zhu1, BI Jia2, ZHANG Jia-jia1 (1. State Key Laboratory of Powder Metallurgy, Central... intensity of the tungsten-based alloys using the metal yield criterion, due to the discontinuity of feed and the uncertainty CRITERION of mechanical properties during the process of extrusion. Based......
thickness are derived based on Hoek-Brown criterion and functional catastrophe theory. The result shows that 0.5 is a most probable condition for instability, and the shape of detaching curve... criterion [18], which is suitable for rock instability. That is to say, B=0.5 is one of most probable catastrophic failures combined with the consequence of functional catastrophe theory. 4.2 Shape......
; 文献标志码:A 文章编号:1672-7207(2018)01-0158-09 Influence of intermediate principle stress coefficient on rock strength criterion FU Helin1, 2, SHI Yue1... on Hoek-Brown, Drucker-Prager, Mogi-Coulomb criterion and unified strength theory. With the modified strength criterion formulas referred to β and the Dunham dolomite experiment data by Mogi......
