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="ChDivSummary" name="ChDivSummary">The well completion process in oil and gas industry, aiming to build effective exploitation, is divided into acidizing and formation water production process. Oxide scale(OS) formed on the inner wall of the HP-13Cr stainless steel tubes during the hot extrusion process changes the surface roughness. The effects of OS on the corrosion of HP-13Cr stainless steel during......
the composite of nanomaterial and micronmaterial by adding micronmaterial during production of nanomaterial through sol-gel method, also introduces the technique and experiment''s process preparation...Preparation of Nano/Micron Composite Materials by Process Method GAN Ai-feng1,YAO Jun-min1,WEI Qi1,HU Chuan-xin1,Yuan1,JI1 (1.Department of Materials Sciences & Engineering,Beijing University......
Effects of process parameters on numerical control bending process for large diameter thin-walled aluminum alloy tubes LI Cheng(李 成)1, YANG He(杨 合)1, ZHAN Mei(詹 梅)1, XU Xu-dong(许旭东)2...; Abstract: Numerical control(NC) bending experiments with different process parameters were carried out for 5052O......
) has been widely applied to evaluate environmental burdens regarding production and service activities. LCA is an integrating process to measure the environmental burdens associated with a product... LCI Estimating Database) provides not only standard CO2 emissions level for each production style on mining process but also energy and material consumptions. 2 Mining LCI estimating database 2.1......
. For the industrialisation of the process, dies for thixoforming of steel alloys need to be capable of producing closer to a hundred thousand or more production cycles. A series of different potential solutions... a vacuum chamber (to avoid oxidation of the slug during heating) and a graphite die. Such a die would not be suitable for long production runs but was relatively cheap in comparison with tool steel......
:Several methods of deep desulfurization in alumina production process were studied, and the costs of these methods were compared. It is found that most of the S2- in sodium aluminate solution can... production process to improve alumina quality, and provide valuable guidelines for alumina production by high-sulfur bauxite.Key words:high-sulfur bauxite; alumina production; desulfurization; wet oxidation......
="ChDivSummary">Low residual-free-oxygen before final de-oxidation was beneficial to improving the cleanness of ultra-low-carbon steel. For ultra-low-carbon steel production, the coordinated control... for ultra-low-carbon steel during the basic oxygen furnace(BOF) endpoint and RH process using data statistics, multiple linear regressions, and thermodynamics computations. The results showed......
makes the enterprise manufacturing process decentralized and heterogeneous, which has brought certain difficulties for the production operation. Thus, the enterprise production modeling and simulation... simulation methods are certainly not suitable for applications in task allocation, decomposition, production planning and scheduling, as well as resource planning in the production process of the air......
J. Cent. South Univ. (2012) 19: 477-481 DOI: 10.1007/s11771-012-1028-z Safety diagnosis on coal mine production system based on fuzzy logic inference WANG Shuang-ying(王爽英)1, 2, ZUO Hong-yan(左红艳)1 1... and Springer-Verlag Berlin Heidelberg 2012 Abstract: According to the randomness and uncertainty of information in the safety diagnosis of coal mine production system (CMPS), a novel safety diagnosis......
180t RH工艺技术优化与改进段建平1(1.山西省太原市山西太钢不锈钢股份有限公司)摘 要:针对180 t RH精炼工艺存在的真空度低,超低碳钢处理时间长,钢中氧含量高及脱硫效率低等问题,研究并优化了RH真空脱气,脱碳升温,脱氧,脱硫等工艺,使RH工作真空度提高到100 Pa以下,超低碳钢处理时间缩短至平均36.5 min,超低碳钢钢中氧的质量分数最低为13×10-6.优化工艺降低了钢中[H],[N],[C],[O],[S]等元素的含量,提高了钢水洁净度,缩短了RH精炼时间,提高了RH精炼生产率.
