共搜索到14248条信息,每页显示10条信息,共1425页。用时:0小时0分1秒716毫秒
+ ......
Modeling uniaxial tensile deformation of polycrystalline Al using CPFEMA.Kiet Tieu摘 要:<正>The crystal plasticity finite element modeling(CPFEM)is realized in commercial finite element code ABAQUS with UMAT subroutine on the basis of the crystal plasti......
Modeling texture development during cold rolling of IF steel by crystal plasticity finite element methodA. Kiet TieuSchool of Mechanical, Materials & Mechatronic Engineering, University of Wollongong摘 要:With the consideration of slip deformation mechanism ......
Microstructural evolution of a superaustenitic stainless steel during a two-step deformation processA.Momeni22. Department of Materials Science and Engineering, Hamedan University of Technology摘 要:Single-and two-step hot compression experiments were carrie......
fraction) extractant is added. The proportions of Acidithiobacillus ferrooxidans and Acidiphilium organovorum are increased, whereas the proportion of Leptospirillum ferriphilum is reduced. When... are At. ferrooxidans, A. organovorum and L. ferriphilum. The sensitivity order of the three bacteria to the extractant from the most to the least is found to be L. ferriphilum>At. ferrooxidans>A. organovorum......
of Acidithiobacillus ferrooxidans, Acidithiobacillus thiooxidans and Leptospirillum ferrooxidans, with reference to zinc and copper recoveries. Bioleaching conditions/processing parameters studied... for the experiments were obtained from the Council for Minerals Technology (MINTEK), South Africa. The cells contained approximately 40% Acidithiobacillus ferrooxidans, 30% Acidithiobacillus thiooxidans......
埃及Ain Sukhna Ezz带钢厂的电弧炉 M.Fabbro1,A.A.Fior1 (1.达涅利森特罗冶金公司) 摘要:埃及Ain Sukhna Ezz带钢厂的电弧炉是达涅利公司建造的最大的电弧炉之一,由于可选用多种入炉原料,采用最优化熔炼和精炼方法,可在电弧炉上以转炉生产成本生产转炉优质钢种. 关键词:电弧炉; 钢包炉; 化学能; [全文内容正在添加中] ......
石英纖维补强鋁合金的抗拉强度D.Cratchley,A.A.Baker,中元摘 要:在室温下对各种热压状态下用连续石英纤维补强的铝合金的抗拉强度作了测定.结果表明,在450~550℃温度间具有一抗拉强度最高的最佳压制压力.提出了一个解释所包含的各过程的模型.复合材料高温抗拉试验表明,强度约保持到300℃,此后强度下降,至500℃下降为23.6公斤/毫米~2.关键词:......
联合钻具的穿孔试验A.A.雷巴尔科,肖通遥全苏矿山机械联合生产公司摘 要:<正> 露天矿的发展方向之一是采用联合穿孔技术,即开始用牙轮钻头钻凿直径较小的炮孔,然后用火力将装药部分扩成药壶.这一技术的进一步发展是把穿孔和扩孔过程结合在一起.实际上,-250K-2型钻机已实现了这种结合,其-4型钴具可用直径0.25米的牙轮钻头穿孔和燃料在管外补充燃烧的火力扩壶. -4型钻机乃是一个燃烧室,在其关键词:......
特殊采掘方法A.克利奇,A.卡卢基维茨,L.亚尔诺波兰克拉科夫矿冶大学波兰格利维采KOMAG采矿机械化中心摘 要:波兰克拉科夫矿冶大学与采矿企业合作,对抗压强度超过80MPa的矿岩的非爆破特殊开采技术进行了研究.本文主要介绍高压水射流与采矿机联合应用的机械开采技术.文中也介绍了等离子破岩技术和活动刀盘辅助采矿技术的研究成果.关键词:非爆破开采;高压水射流;等离子技术;活动刀盘;......