共搜索到18773条信息,每页显示10条信息,共1878页。用时:0小时0分0秒997毫秒
in the mechanical engineering is acting as anti-friction and wear-resistant coating on the WC-Co cutting tool adopted for machining non-ferrous materials like aluminum alloy [21], graphite [22], hard metals [23... CVD [31] or HFCVD technologies [32]. DONNET et al [30] have indicated that under the circumstance of the combustion flame CVD, some spherical Co particles with a diameter of about 0.7 nm can......
. LI et al [118] examined the energy absorption behavior of shrink circular tube. As shown in Figures 15 and 16, the 6061-T6 aluminum alloy circular tubes were experimentally shrunken in radial... 19 and 20. LI et al [125, 126] proposed a new structure which combines expansion and splitting of circular metal tube and designed the special metal circular tube and die. Using this system......
and Technology, Al. Mickiewicza 30, 30-059 Cracow, Poland Received 8 September 2019; accepted 16 March 2020 Abstract: Top ash from hot-dip galvanizing plant was investigated as a source of secondary zinc...-called top dross when zinc-aluminum alloy is used [6]. The zinc ash is skimmed continuously by workers before the galvanized objects are removed from the bath to avoid adhering the powder to the fresh......
-yang, LONG Bo, LI Jie, et al. Effects of precursor preparation on performances of stainless steel foam with 3-D open cells network structure[J]. The Chinese Journal of Nonferrous Metals, 2006, 16(9... Press, 2012. [7] 胡 松, 左孝青, 谢香云, 等. 特殊孔结构ZA27合金泡沫的吸声性能[J]. 中国有色金属学报, 2014, 24(11): 2798-2804. HU Song, ZUO Xiao-qing, XIE Xiang-yun, et al. Sound absorption properties of ZA27 alloy foams with particular......
合硅烷偶联剂的铜箔抗剥离强度为21.76 N /cm,煮2 h后剥离强度为21.56 N/cm,损失率为0.92%;浸288 ℃焊锡20 s后,抗剥离强度为21.76 N/cm,损失率为0,与单独使用KH-550或HK-560相比可大幅提升铜箔与树脂胶板的抗剥离强度.Li等[30]以三甲氧基丙基硅烷(TMPS)和双(三甲氧基硅烷)乙烷(BTMSE)为环保黏合剂,采用溶胶凝胶法和浸渍法对Al,Cu...解铜箔高温抗剥离性能面处理工艺: 中国, CN105018978A[P]. 2015-11-04. LI Ying-en, FAN Bin-feng, WANG Jian-zhi, et al. The invention relates to a surface treatment process for improving the stripping resistance......
related to F1. For example, printery and alloy melting factories often cause Mn and Cr contamination. Additionally, coal mining activities contribute greatly to Mn, Ni, Cr and As pollution in the soils... wastewater containing Cd, Pb, Al and Hg are the main sources of pollution. In many studies, Pb pollution was primarily related to vehicle sources[42], which were also found in the study area......
investigation of diamond coatings on steel[J]. Scripta Materialia, 2009, 60(7): 504-507. [5] LI Y S, HIROSE A. Direct coating of nanophase diamond films on steel substrate[J]. Chemical Physics Letters... temperatures in hot filament chemical vapour deposition (HFCVD) employing chromium interlayers[J]. Diamond & Related Materials, 2006, 15: 754-760. [19] LI H, GOWRI M, SCHENNER J J, VAN ENCKEVORT W......
,也可以看出世界铝工业的转移状况.2006-2010年我国铝土矿的进口量分别为 925.6,2 328.0,2 592.7,1 980.2和3 006.9万t.我国铝土矿石品位较低,铝硅比(质量比)以4~7为主,品位约为46%;m(Al)/m(Si)>9的高铝硅比矿石数量少,不到20%,见表1[1]. 表1 我国不同铝矿石等级的比例分布[1] Table 1 ...: Metallurgical Industry Press, 2007: 5-16. [2] 陈建宏, 永学艳, 杨立兵. 中国铝消费量与GDP产出关系的实证研究[J]. 辽宁工程技术大学学报: 社会科学版, 2009, 11(3): 246-248.CHEN Jian-hong, YONG Xue-yan, YANG Li-bing. Empirical research......
in CP-Ti when deformation proceeds during ECAP via route A (in which there is no rotation of the sample between passes) at 350 °C [19]. However, DHEDA et al [20] found that ECAP resulted in more random... has not been given or clearly explained. HEILMANN et al [37] explained that the special orientation was the result of the rotation of the lattice. This rotation is about the transverse axis normal......
high-carbon ferrochrome alloy powder[D]. Changsha: Central South University, 2009: 18-22. [36] 郑诗礼, 张 洋, 徐红彬, 肖清贵, 张 懿. 一种铬铁矿液相氧化生产铬酸钠的清洁生产方法: 中国, CN 102001708A[P]. 2011-04-06. ZHENG Shi-li, ZHANG...实验室,北京 100190) 摘 要:主要从固相法和液相法两个方面介绍铬盐生产工艺中铝杂质的脱除方法,固相法重点介绍无钙焙烧法,无钙焙烧熟料中含铝固相产物有铁镁矿(Mg(Fe,Al)2O4),铝硅酸钠(NaAlSiO4)和铝硅酸镁钠(Na4MgAl2Si3O12).同时,根据铬矿成分的不同,添加含硅或含铝原料,控制SiO2和Al2O3摩尔比,使铬铁矿中的铝和硅在无钙焙烧过程中转化成为铝......