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design.An orthogonal array of L8,27 which denotes 7 factors at 2 levels was chosen to consider the various factors relevant to the leaching process: baking time,baking temperature,acid dosage,leaching time,leaching temperature,grind size and dilution.Statistical analysis showed that sulphation baking was a significant step for the leaching of rare earths from the whole-of-ore and optimized leaching......
新型F级低温快固化无溶剂浸渍漆的研制 王学文1 (1.四川东方绝缘材料股份有限公司,) 摘要:本文介绍了新型F级低温快固化无溶剂浸渍漆的组成,技术特性及工艺性能,对该漆性能的影响因素进行了分析.该漆能在120~140℃下快速固化,可广泛用于B~F级电器线圈的绝缘浸渍处理. 关键词:浸渍漆; 低温快固化; 无溶剂; [全文内容正在添加中] ......
到80%以上;采用酸浸加压等强化措施后,最终得到的石墨纯度可达99.56%;碱焙烧过程的活化能为40.694kJ/mol;降低了原矿平均粒度,提高了焙烧温度;添加矿化剂有助于提高脱硅效率. 关键词: 隐晶质石墨;脱硅作用;物相分析;动力学 中图分类号:TB 321 文献标识码:A 文章编号: 1672-7207(2005)01-0029-05 Baking Kinetics...) Abstract:Kinetic equation in the baking process of purifying aphanitic graphite were researched. Influence of the diameter of raw ore, alkali baking time and baking temperature on desilication......
ageing of the alloy and improve its BHR effectively. When pre-ageing time is 10 min, the strength of the alloy before baking is too high and the plasticity after baking decreases. Adding pre-straining... during natural ageing of the alloy, and accelerate the precipitation of β″ phase during baking, with the results of natural ageing suppressed and BHR enhanced.Key words:aluminum alloy; pre-straining; pre......
was manufactured after baking in an oven for 1-3 h at the temperature of 500-900 ℃.The baked material was tested for its disinfection effectiveness and coloring effect when mixed with paint coating.Based......
in the matrix might be harmful to the BH ability. For deformed specimens, baking resulted in a loss of uniform elongation, but there was no obvious decrease in uniform elongation for unprestrained......
that the appropriate baking temperature for NiCr2O4 powder preparation is about 1200?C. The emissivity measurement and FT-IR spectra show that, because of the special spinel structure, the NiCr2O4 powders......
for the microstructure containing fibrous martensite compared to the microstructure-containing bulky martensite.It was also observed that at a given baking temperature Dr,YS and UTS increased by volume......
Preparation and Properties of Alkali Activated Foam Cement Reinforced with Polypropylene Fibers王立久,谭晓倩Institute of Building Materials,School of Civil and Hydraulic Engineering,Dalian University of Technology摘 要:A new form of foam cement was produced by mix......
="ChDivSummary">In a typical process,low carbon steel was annealed at two different temperatures(660℃ and 750℃),and then was temper rolled to improve the mechanical properties.Pre-straining and baking treatments......
