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真空脱气过程中降低耐火材料侵蚀和改善钢水脱硫的途径——控制萤石加入量 被引量:1
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作者 herbert wagner 古隆建 《钢铁钒钛》 CAS 北大核心 1992年第1期64-72,共9页
近年来,随着各种钢包冶金工艺的发展,对耐火材料内衬的要求也越来越苛刻。二次冶金过程是以在钢水、熔渣和气相之间所进行的剧烈的界面反应为基础的,对超低硫钢的要求又需要使用反应能力强的碱性渣,虽然这类渣的脱硫能力强,但却常常使... 近年来,随着各种钢包冶金工艺的发展,对耐火材料内衬的要求也越来越苛刻。二次冶金过程是以在钢水、熔渣和气相之间所进行的剧烈的界面反应为基础的,对超低硫钢的要求又需要使用反应能力强的碱性渣,虽然这类渣的脱硫能力强,但却常常使渣线区的优质衬砖过早地受到蚀损。通常,各种炉外精炼过程是在渣线区砌筑镁砖的白云石内衬钢包中进行的,由于在真空条件下底部搅拌的结果,钢水的循环非常强烈,钢水与熔渣之间的反应异常剧烈,故对于各种真空脱气工艺来讲(VD,VOD),其钢包的蚀损程度最为严重(尤其是渣线区)。 展开更多
关键词 钢水 真空脱气 萤石 脱硫 钢包侵蚀
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Critical assessment of a wide-spread method for estimating energy expenditure during accelerated running based on positioning tracking systems
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作者 Philip X.Fuchs Patrick Fuchs +2 位作者 Serge P.von Duvillard herbert wagner Tzyy-Yuang Shiang 《Journal of Sport and Health Science》 SCIE 2022年第6期641-643,共3页
1.Introduction An innovative method for estimating energy cost is to consider accelerated/decelerated running on flat terrain metabolically equivalent to uphill/downhill running at constant speed. In this method,the a... 1.Introduction An innovative method for estimating energy cost is to consider accelerated/decelerated running on flat terrain metabolically equivalent to uphill/downhill running at constant speed. In this method,the authors estimated an acceleration-dependent body slope.That slope corresponded to a given terrain slope during constant speed running,for which energy costs were known. Then they used accelerations(transformed into equivalent slopes)in a previously reported regression equation for energy cost estimation during uphill and downhill running at constant speed. This method allows researchers to estimate energy cost via player accelerations,thus making energy estimations feasible in team sports matches. 展开更多
关键词 ACCELERATION ESTIMATING transformed
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