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J. Cent. South Univ. (2017) 24: 1040-1049 DOI: 10.1007/s11771-017-3507-8 Heat treatment and granule medium internal high-pressure forming of AA6061 tube BI Jiang(毕江)1, 2, ZHAO Chang-cai(赵长财)1, BI... internal high-pressure forming and aging treatment, was developed. The AA6061 alloy tube via heat treatment satisfied the forming requirement, and the granule medium internal high pressure forming method......
河北某煤矿Bond功指数测定研究牛福生1,2,刘亚1,信晓飞31. 华北理工大学矿业工程学院2. 河北省矿业开发与安全技术重点试验室3. 河北省地矿局第二地质大队摘 要:本文基于Bond粉碎第三理论对煤矿矿样进行功指数的测定,取得了较好的试验结果.Bond功指数测定表明,在筛孔尺寸为270μm,给矿中80%物料能通过的粒度大小为785μm,磨矿平衡时筛下产品中80%物料能通过的粒度大小为245μm,每一转所生成Gbp为4.54 g/r,通过计算得出Bond球磨功指数为13.98 kW·h/t,为煤矿磨矿时磨机的选取提供很好的指导意义.关键词:煤矿;Bond功指数;可磨度;......
Responses of wind-induced internal pressure in a two-compartment building with a dominant opening and background porosity Part 2: Parameter analyses and design equationsQUAN Yong(全涌), YU Xian-feng(余... to determine the admittance functions in a common two-compartment building with background porosity by the imposed excitation method. Variations of the magnification factors of fluctuating internal pressures......
Internal Oxidation of Some Pd-40Ag-1RE AlloysNing Yuantao Li Yongnian Dai Hong Institute of Precious Metals.Kunming,China摘 要:<正> The internal oxidation behavior of Pd-40Ag-1RE(RE=Sin,Eu,Gd,Y)alloy wires has been studied in air at 800~1200℃The dependence of internal oxidation depth ξ on reaction time t can be expressed asξ=Ktn,the reaction index n......
复杂铝土矿BOND功指数测试研究王强,林齐中国铝业贵州分公司摘 要:本文通过对不同产地,类型及粉碎产品粒度的铝土矿BOND磨矿功指数的研究,在参考水泥原料易磨性试验方法标准的基础上,建立了铝土矿球磨功指数测定试验方法,铝土矿棒磨功指数测定试验方法.关键词:......
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碎产品微裂纹的影响,测定不同粉碎方式在不同目标粒度的情况下矿石的Bond球磨功指数,研究不同粉碎方式对粉碎产品Bond球磨功指数的影响.研究结果表明:高压辊磨产品较传统破碎产品微裂纹更多,在0.9~3.2 mm粒级时,高压辊磨产品表面的微裂纹十分明显；高压辊磨产品较传统破碎产品的Bond球磨功指数低,随着目标粒度的减小,高压辊磨产品较传统破碎产品的Bond球磨功指数降低的幅度在逐渐减小；与传统碎磨产品相比,高压辊磨产品在磨矿细度(小于0.074 mm含量)小于60%时的节能效果更明显. 关键词:高压辊磨机；钼铜矿；微裂纹；Bond球磨功指数 中图分类号:TD 952 文献标志码:A 文章编......
Effects of combination modes of favorable growth unit of Al(OH)3 crystals precipitating on Van der Waals and chemical bond force WU Zheng-ping(吴争平), CHEN Qi-yuan(陈启元), YIN Zhou-lan(尹周澜), LI Jie(李... and molecular radius, and that on chemical bond force is analyzed using total energy, orbital population and orbital energy. Key words: gibbsite; combination; ab initio; DFT; chemical bond force; Van der......
资源与土木工程学院,辽宁 沈阳,110004) 摘要:对弓长岭磁铁矿石进行高压辊磨和颚式破碎,分析不同粉碎工艺对粉碎产品粒度特性的影响,测定不同粉碎方式在不同目标粒度下的 Bond 球磨功指数,研究颚式破碎和不同的高压辊磨机辊面压力对Bond球磨功指数的影响.研究结果表明:高压辊磨产品比颚式破碎产品细粒级质量分数高,高压辊磨辊面压力4.5 N/mm2和5.5 N/mm2产品的粒度分布更加均匀；在磨矿细度小于0.074 mm的质量分数为65%,高压辊磨产品在辊面压力为2.5,3.5,4.5,5.5和6.5 N/mm2下的Bond球磨功指数比颚式破碎产品分别降低11.36%,21.38%,15.62%,22.59%和27.49%,在磨矿细度小于0.074 mm的质量分数为40%,高压辊磨产品在辊面压力为2.5,3.5,4.5,5.5和6.5 N/mm2下的Bond球磨功指数比颚式破碎产品分别......
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