圣泉集团参加GIFA2011展览获得巨大成功

本次展会上圣泉集团是中国最大的参展商,面积达到300多平米的极具中国特色的展台成为本次展会的一大亮点,展出了树脂、涂料、过滤器、冒口套、黑色合金材料、辅助材料及酚醛树脂七大系列产品,特别是熔炼材料、碳质及锆质过滤器、直孔过滤器、陶瓷浇道系统、环保型铸造树脂、新型保温发热冒口等新产品,吸引了来自德国、英国、法国、意大利、伊朗、美国、巴西、     

粉末冶金多孔材料

粉末冶金多孔材料,也称多孔烧结材料,由金属或合金粉末经成形、烧结工艺而制成。常用的金属或合金有青铜、不锈钢、铁、镍、钛、钨、钼以及难熔金属化合物等。粉末冶金多孔材料具有孔径和孔隙度均可控制、导热、导电、可焊接和加工、高的比强度、冲击韧性、能量吸收性能、化学活性、阻波性能、独特的光学性能、良好的透过性、选择性的渗透与吸附性、止振性能等一系列优异的性能。在气体和液体过滤、高温燃气的净化过滤、熔融金属的过滤、固体催化、缓冲器及吸震器、电极材料、屏蔽材料、流体分布装置、热交换器、加热器、散热器、结构材料、生物材料等领域得到广泛应用。     

广研传媒参加第十二届中国国际机床工具展览会

正2014年6月18-22日,由中国机械工业集团有限公司、中国机床总公司、励展博览集团主办的"第十二届中国国际机床工具展览会"(CIMES2014),在北京中国国际展览中心隆重举行,本届展会展出规模达12万平方米。有中国、美国、德国、意大利、英国、法国、瑞典、日本、韩国、西班牙、芬兰、捷克、以色列、土耳其、中国香港特区、台湾地区等在内的全球约28个国家及地区的1300余家展商参展,沈阳机床、秦川发展、北京机床研究所、哈量、沈阳新松、北一机、德     

工信部向社会公告18个工业行业淘汰落后产能企业名单

按照《国务院关于进一步加强淘汰落后产能工作的通知》和《国务院关于进一步加大工作力度确保实现十一五节能减排目标的通知》要求,在与各省市沟通协商的基础上,工业和信息化部于2010年5月26日向各省、自治区、直辖市人民政府下达了18个工业行业(炼铁、炼钢、焦炭、铁合金、电石、电解铝、铜冶炼、铅冶炼、锌冶炼、水泥、玻璃、造纸、酒精、味精、柠檬酸、制革、印染、化纤等行业)2010年淘汰落后产能目标任务,要求     

2011埃及机械技术展

埃及机械技术展（MACTECH）是北非和阿拉伯国家中最大的和唯一的大型机械展，在该地区具有影响力。展品涉及机床、工业工具、焊接与切割设备。展商来自40个国家和地区。观众主要来自埃及、阿尔及利亚、利比亚、摩洛哥、突尼斯、巴林、塞浦路斯、伊朗、伊拉克、约旦、科威特、黎巴嫩、阿曼、卡塔尔、沙特、叙利亚、土耳其、阿联酋、苏丹、也门等。埃及的机床工业实力比较薄弱，90％靠进口。埃及的经济增长要好于世界的平均水平，因此开拓这一市场对于我国企业具有很大的吸引力。     

修复专家,行业先锋

<正>上海朗现机电设备有限公司是专业从事特种焊机研发、生产、销售为一体的科技型企业。公司经过10年的发展,形成了以电火花堆焊修复机、WS精密补焊机为主体的两大系列。广泛应用于模具、铸造等诸多制造业。"质量第一、诚信第一、服务第一"是我公司的经营宗旨,多年来公司已为上千家企业提供了本公司产品及服务,深得客户的好评。我公司产品部分代表性客户有上海宝钢、上海通用、上海大众、上海汇众、上海皮尔博格、上海第一机床厂、青岛海尔、青岛双星、青岛海信、青岛高校软控、烟台富士康、济南重工、济南重汽、潍坊潍柴、秦皇岛中信戴卡、中国二重、重庆渝江压铸、重庆齿轮箱、华北柴油机、西安飞机集团、西安比亚迪、东风汽车、西峡西泵特种铸造、华东泰克西、太原重工、长春一     

鼎鑫元(湖南)化工机械制造有限公司

正鼎鑫元(湖南)化工机械制造有限公司为民营独资企业。公司拥有雄厚的技术力量、先进的制造工艺、高素质的技术人才及完善的质保体系,以科技为先导,致力于新型产品的开发与生产。公司主要产品有耐磨渣浆泵、电解锰压滤专用泵、阳极液泵、工业循环泵、陶瓷泵、高分子工程塑料泵等各种工业用泵;大功率齿轮减速器、平行轴斜齿轮减速机、摆线针轮减速机、涡轮、涡杆减速机、制作安装酸雾吸收塔、风机、搅拌设备、环保设备等,广泛适用于化工、电解锰、电解锌、电解铝、化肥、冶金、     

温州模具行业的出路

温州是我国重要的制造业基地之一,这里制造的鞋、低压电器、电子元器件、打火机、眼镜、锁具、笔、小家电、拉链、泵阀、汽摩配件和小五金等产品畅销全国,远销世界各地。     

十年磨一剑——祝贺《表面工程资讯》创刊10周年

《表面工程资讯》杂志是表面工程行业第一本国内外公开发行的资讯类刊物.自创刊以来,该刊跟踪、关注、宣传并不断改进报道表面工程业界的动态与发展,真实记录了行业发展中一系列重要事件和重大成果,其内容涉及到与行业相关的国内外政策法规、热点聚焦、人物专访、研究动态、学术交流、成果展示、实用技术、行业综述、产品供求、人才交流、市场预测、专利标准等资讯,这些都是从国内外浩瀚的资讯中筛选出来的精品,其特点是精炼、真实、快速地向读者传递国内外有用的资讯,并且雅俗共赏.刊物不仅对表面工程企业的领导、技术人员有所启示,而且对院校、研究机构的专家、学者有借鉴作用,因为它贴近实际、贴近群众、贴近世界前沿技术.     

HQ785T1钢不预热焊接技术研究

0前言低合金高强钢具有良好的焊接性、优良的可成形性及较低的制造成本,因此被广泛用于压力容器、车辆、桥梁、建筑、工程机械、矿山机械、农业机械、纺织机械、海洋结构、船舶、电力、石油化工、军工产品及航空航天等领域,已成为大型、重型焊接结构中最主要的结构材料之一。随着钢材合金元素含量、强度级别和焊     

新型的治疗阿尔茨海默氏症药物(1-二甲基磷酰基-2,2,2-三氯)-乙基-1-醇烟酸醋对体外神经细胞的作用

目的: 观察本实验室合成的一种治疗阿尔茨海默氏症(AD)的药物(1-二甲基磷酰基-2, 2, 2 -三氯)-乙基^-1-醇烟酸醋(NMF),对体外培养的皮层神经细胞活性的影响以及对海人藻酸(KA)所致的神经损伤的保护作用。方法: 采用体外培养皮层神经元的方法,解剖分离 15 d胚胎小鼠皮层神经细胞, 接种于 96孔板,48 h 后加药并培养 72 h,以 MIT 法 观察 NMF 对小鼠皮层神经细胞活性的影响;同时将接种于 24 孔板的细胞预先给予 NMF,d 3 时加或不加KA处理后,以台盼蓝染色鉴别并计数死、活细胞,可得出细胞的存活率。结果: NMF 明显促进胎鼠皮层神经元活性,其中 NMF1、0. 1、10nmol·L^-1促进神经元活性增殖率分别高达 34.7%、37.4%、36. 7%, NMF 明显促进正常胎鼠皮层神经元存活卒,与对照组比较,10nmol·L^-1 NMF 对皮层神经元的存活率分别提高 39.3%、73.5%。 NMF能显著 对抗 KA 所致的神经元损伤,与 KA 损伤组相比, NMF0.1、10、10nmol·L^-1对损伤皮层神经元的保护率分别为 77.30%、80.10%、84.15%。结论: NMF 明 显促进胎鼠皮层神经元的洁性、提高正常皮层神经元,的存活卒,并能有效地保护KA所致的神经元损伤,提示 NMF 是一种很有潜力的治疗 AD 的药物。     

Rheology Feature of Simple Metal Melt

The rheology feature of Sb, Bi melt and alloys was studied using coaxial cylinder high-temperature viscometer. The results showed that the curve of torsion-rotational speed for Sb melt presents a linear relation in all measured temperature ranges, whereas for the Bi melt, the curve presents obvious non-Newtonian feature within the low temperature range and at relative high shear stress. The rheology feature of Sb80Bi20 and Sb20Bi80 alloy melts was well correlated with that of Sb and Bi, respectively. It is considered that the rheology behavior of Sb melt plays a crucial role in Sb80Bi20 alloy and that of Bi melt plays a crucial role in Sb20Bi80 alloy.     

Microstructures and Mechanical Properties of a Newly Developed Austenitic Heat Resistant Steel

The effect of heat treatment on the microstructures and mechanical properties of a newly developed austenitic heat resistant steel(named as T8 alloy) for ultra-supercritical applications have been studied. Results show that the main phases in the alloy after solution treatment are γ and primary MX. Subsequent aging treatment causes the precipitation of M_(23)C_6 carbides along the grain boundaries and a small number of nanoscale MX inside the grains. In addition, with increasing the aging temperature and time, the morphology of M_(23)C_6 carbides changes from semi-continuous chain to continuous network.Compared with a commercial HR3C alloy, T8 alloy has comparable tensile strength, but higher stress rupture strength. The dominant cracking mechanism of the alloy during tensile test at room temperature is transgranular, while at high temperature, intergranular cracking becomes the main cracking mode, which may be caused by the precipitation of continuous M_(23)C_6 carbides along the grain boundaries. Typical intergranular cracking is the dominant cracking mode of the alloy at all stress rupture tests.     

Three-Dimensional Growth of Coherent Ferrite in Austenite: A Molecular Dynamics Study

Coherent second phase often exhibits anisotropic morphology with specifi c orientations with respect to both the second and the matrix phases. As a key feature of microstructure, the morphology of the coherent particles is essential for understanding the second-phase strengthening eff ect in various industrial alloys. This letter reports anisotropic growth of coherent ferrite from austenite matrix in pure iron based on molecular dynamics simulation. We found that the ferrite grain tends to grow into an elongated plate-like shape, independent of its initial confi guration. The fi nal shape of the ferrite is closely related to the misfi t between the two phases, with the longest direction and the broad facet of the plate being, respectively, consistent with the best matching direction and the best matching plane calculated via the Burgers vector content(BVC) method. The strain energy calculation in the framework of Eshelby's inclusion theory verifi es that the simulated orientation of the coherent ferrite is energetically favorable. It is anticipated that the BVC method will be applicable in analysis of anisotropic growth and morphology of coherent second phase in other phase transformation systems.     

The 15th Global Foundry Sourcing Conference 2014held in Qingdao China

Organized by Suppliers China Co., Ltd and co-organized by the National Technical Committee 54 on Foundry of Standardization Administration of China, the 15th Global Foundry Sourcing Conference 2014 （hereinafter referred to as FSC 2014） was successfully held on Sep. 23rd in Grand Regency Hotel, Qingdao. More than 500 delegates from home and abroad attended this conference, including over 130 purchasers from 20 countries and 380 domestic and foreign suppliers.     

Secondary Recrystallization Behaviors of Grain-Oriented 6.5 wt% Silicon Steel Sheets Produced by Rolling and Nitriding Processes

By rolling and nitriding processes, 0.23- to 0.3-mm-thick grain-oriented 6.5 wt% silicon steel sheets were produced. The core losses of grain-oriented 6.5 wt% silicon steel at frequencies ranging from 400 Hz to 20 k Hz were lower than that of the grain-oriented 3 wt% silicon steel with the same thickness by 16.6–35.8%. The secondary recrystallization behavior was investigated by scanning electron microscopy, energy-dispersive spectroscopy, and electron backscattered diffraction. The results show that the secondary recrystallization in high-silicon steel sheets develops more completely as the nitrogen content increases after nitriding, secondary recrystallized grain sizes become larger, and the sharpness of Goss texture increases. Because more {110}116 grains in the subsurface and the central layer of the sheets have a lot of 20°–45° high-energy boundaries in addition to Goss grains, {110}116 can be the main component through selective growth during secondary recrystallization when the inhibitor quantity is not enough and inhibitor intensity is weaker. The increases in nitrogen content can increase the inhibitor intensity and hinder abnormal growth of a mount of {110}116 grains and therefore enhance the sharpness of Goss texture.     

Laser Cladded TiCN Coatings on the Surface of Titanium

Laser cladded coatings of TiCN were produced on the surface of titanium. To obtain the optimal techniques, several conditions were tested by varying the laser scanning rate. The choice of shielding gas was also studied. The cladded coatings were then evaluated from the surface mechanics point of view based on their microhardness. The microstructure of some interesting samples was investigated by optical micrographs (OM). The results showed that under the condition of fixed pulse frequency and pulse width, the laser scanning rate and the shielding gas are the main factors influencing the components of coatings. TiCN coatings were decompounded and oxidized during the cladding process in the condition of no shielding gas of N2. X-ray diffraction results indicated that the composite coatings composed of TiCN, TiC, Ti2N, and TiO2 were produced using appropriate techniques. The results indicated that the best condition in terms of the surface microhardness is obtained when the scanning rate is 1.5mm / s, the pulse frequency is 15Hz, the pulse width is 3.0ms, and N2 is chosen as the shielding gas. The microhardness of the composite coatings is about 1331kg · mm - 2, which is about 4 times that of the substrate. The optical micrographs indicated that the cladding zone is made up of TiCN, TiO2, and some interdendritic Ti, but the diffusion zone mainly consists of the dendrites phase, and the cladded depth is about 80?滋m, which is more than 2 times that of the laser nitrided sample. There were no microcracks or air bubbles in the cladded sample, which was cladded using the above optimal techniques.     

Effect of Short-Time Aging on the Pitting Corrosion Behavior of a Novel Lean Duplex Stainless Steel 2002

The effect of short-time aging in the temperature range between 400 and 1000 °C on the pitting corrosion behavior and mechanical property of a novel lean duplex stainless steel(LDSS) 2002 was investigated through the potentiostatic critical pitting temperature(CPT) tests and the Charpy impact tests. Both the pitting corrosion resistance and the toughness of aged specimens degraded due to the precipitation of detrimental secondary phases and the most significant reduction of CPT and impact energy emerged at 650 °C concurrently. The CPT of LDSS 2002 specimen aged at 650 °C decreased by 28 °C, and the impact energy dropped from 69 to 29 J/cm~2 compared with the solution-annealed sample. Transmission electron microscopy characterization showed that the main precipitates in LDSS 2002 were Cr_2N and M_(23)C_6 along the ferrite–austenite grain boundaries.     

Information for Contributors

正The Transactions of Nonferrous Metals Society of China,founded in 1991 and sponsored by The Nonferrous Metals Society of China,is published monthly now and mainly contains reports of original research which reflect the new progresses in the field of nonferrous metals science and technology,including mineral processing,extraction metallurgy,metallic materials and heat treatments,metal working,physical metallurgy,powder metallurgy,with the emphasis