废弃PCB板电子元件高效无损绿色自动分离技术研究

为了实现废弃PCB板的规模化和产业化回收,研发了一种废弃PCB板电子元件的高效无损绿色自动分离设备。该设备包括送料装置、加热装置、分离装置和出料装置4个部分。重点设计了分离装置的机械结构,分析了分离装置的工作原理,设计了分离装置的控制系统,并对PCB板电子元件高温分离过程所产生的有毒、有害气体进行了有效的收集和综合治理,以实现拆解尾气的绿色安全排放。企业实践表明,该设备适应PCB板范围宽,分离电子元件效率高,元件损坏率低,焊料回收纯度高,设备自动化程度高,经济效益、社会效益和环境效益好,具有一定的推广应用价值。     

基于回收的DIP封装IC芯片引脚整形装置

在电子产品的回收拆卸过程中会产生大量DIP封装的IC芯片,除了引脚会产生机械变形外,这些芯片多数都保留正常的使用功能,经过适当的引脚修正,检测合格后尚可继续使用.文章分析了DIP封装IC芯片引脚变形的原因,比较了国内外现有的引脚整形方法和设备,提出了一种新型的引脚整形装置.该装置可实现对引脚变形的废弃或新的DIP芯片进行粗、精两次整形,适应范围宽,操作速度快,性能/价格比高,为电子产品回收行业提供了一种廉价、高效的引脚整形装备,符合可持续发展的理念.     

印刷线路板三辊式剪切机的设计与应用

针对废弃印刷线路板的破碎分选回收,设计一种三辊式剪切机,利用第一辊和第二辊之间的相互咬合,使印刷线路板在经第一辊和第二辊上的刀盘侧刃剪切后呈条状挤出,条状挤出物料再被第三辊外圆周上呈螺旋状分布的外圆周齿在导料板边缘依次折断,从而得到小块物料。介绍三辊式剪切机的详细结构,分析剪切过程的工作原理,介绍该剪切机的实践应用情况。使用结果表明:该机器结构简单、功耗低、噪声小、效率高、操作简单、维护方便,可将韧性好、硬度高、不易弯曲的废弃印刷线路板剪切粗碎成小块物料,为后续的细碎和物料分选奠定基础。     

压缩机回收拆解设备伺服进给机构设计

针对大量废弃家电压缩机难以拆解回收或再制造的问题,研发了一种专用的压缩机智能回收拆解设备,控制刀具恒深切割,保证了压缩机内部零件的完好无损。分析了回收拆解设备的工作原理,建立了铣刀拆解的数学模型,计算求解了各个方向的切削负载。设计了压缩机水平移动和回转运动的伺服进给传动机构,并对伺服电机和滚珠丝杠等关键部件进行了计算、选型和校核。结果表明,该设备承受切削负荷的两个伺服进给机构均具有较好的伺服性能,启动速度快,空载速度高,定位精度和重复定位精度高,稳定性好,满足压缩机精密拆解的需要。     

再生专利

线路板再生法和装置申请号:CN02803121.0公开号:CN1482950申请人:日本株式会社电装这是一种再生线路板的方法和装置,用来分离和回收线路板和连线在内的金属以及绝缘材料。分离和回收后的绝缘材料和金属材料都可以用来再生。在废弃印刷电路板被加热过滤工序内,使用加热过滤器具和树脂金属分离器具,加热和强制过滤,从而仅仅使绝缘材料通过过滤器。然后绝缘材料和金属材料被分离和回收。最好作为废弃印刷电路板的绝缘基体由热塑性树脂或、和无机填料的混合物制成。因此,当回收后的金属材料和绝缘材料的数量分别达到再生的限度时,金属材料和绝…     

废弃液晶面板剪切破碎机结构设计

为了实现废弃液晶面板的大规模、产业化、高效率、绿色回收,根据其特点和破碎要求,设计了一种废弃液晶面板专用剪切破碎机。首先详细阐述了该破碎机的结构组成和工作原理,然后深入分析了关键零部件参数的选取原则,并对其力能参数进行了设计计算,最终研制出了剪切破碎机的样机。试验结果表明,该破碎机运转平稳、性能可靠,具有结构简单、粉尘少、温升低、散热快、杂质少、易于操作等优点。该设备的成功研制将大大提高废弃液晶面板的破碎效率,使得液晶面板内液晶材料、稀贵金属铟以及高品质玻璃的资源化回收变得高效、简单、可行,从而实现资源的循环利用,对减少环境污染、发展循环经济意义重大。     

家电压缩机智能开箱设备及其工艺研究

针对家电压缩机箱体形状不规则的特点,设计了一种专用的压缩机箱体智能拆解设备,拟定了一套可行的拆解工艺,搭建了开箱设备的测控系统。利用图像智能识别技术确定压缩机箱体环形焊缝的高度位置,并控制刀具自动寻找切入点;利用激光测距传感器控制切割刀具在周长方向自动跟踪压缩机箱体焊缝,保证切深恒定,不会伤及内部零件,从而实现智能控制、跟踪切割。该设备实现了家电压缩机的高效、自动化、批量化拆解,体现了家电产品的绿色回收理念。     

废旧线路板回收利用与无害化处理技术

由浙江省重点省级研发中心、国家重点高新技术企业———浙江丰利粉碎设备有限公司研发的FXS废旧电子线路板回收处理成套设备,于2004年12月25日在杭州通过省级新产品鉴定。该设备采用先进的物理法回收工艺:废旧线路板→强力破碎→磁选→中碎→精细粉碎→超微分级→高压静电分离     

放射性伽玛刀切割机的设计

介绍一种能在防辐射的热室中切割废弃伽玛刀的切割机。该切割机除了装取伽玛刀用机械手完成外,整个切割过程自动完成。针对自动切割过程中,放射性伽玛刀的安装定位、夹紧、切割位置、切割方式等关键问题进行分析,完成了整机的功能原理分析,同时对控制系统进行了设计。该机满足放射性伽玛刀的切割要求,可将伽玛刀内部的高放射性Co60和低放射性的内外包壳分离并分别进行处理,使处理废弃伽玛刀的成本大大降低,具有较高的经济效益。     

专利

镍的回收;从电子废弃物中提取铜;从废弃印刷线路板表面提取责金属的方法及专用夹具;从含氰废水中回收铜以及相应的废水处置方法;镁合金压铸废料的循环利用工艺.     

Effects of Post-weld Heat Treatment on Microstructure,Mechanical Properties and the Role of Weld Reinforcement in 2219 Aluminum Alloy TIG-Welded Joints

In as-welded state, each region of 2219 aluminum alloy TIG-welded joint shows diff erent microstructure and microhardness due to the diff erent welding heat cycles and the resulting evolution of second phases. After the post-weld heat treatment, both the amount and the size of the eutectic structure or θ phases decreased. Correspondingly, both the Cu content in α-Al matrix and the microhardness increased to a similar level in each region of the joint, and the tensile strength of the entire joint was greatly improved. Post-weld heat treatment played the role of solid solution strengthening and aging strengthening. After the post-weld heat treatment, the weld performance became similar to other regions, but weld reinforcements lost their reinforcing eff ect on the weld and their existence was more of an adverse eff ect. The joint without weld reinforcements after the post-weld heat treatment had the optimal tensile properties, and the specimens randomly crack in the weld zone.     

The First Phase of the SRIF Industrialized Base in ＂West Area＂ Has Been Put into Operation

After nearly two years＇ tense construction, the first phase of industrialized base of Shenyang Research Institute of Foundry （SRIF）, located at the Tiexi Casting and Forging Industrial Park in the west of Tiexi District, has now been completed and formally put into operation.     

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。     

Effect of Rare Earth Doping on Impedance,Modulus and Conductivity Properties of Multiferroic Composites:0.5(BiLa_xFe_(1-x)O_3)–0.5(PbTiO_3)

The Lanthanum-doped bismuth ferrite–lead titanate compositions of 0.5(Bi LaxFe1-xO3)–0.5(Pb Ti O3)(x = 0.05,0.10,0.15,0.20)(BLxF1-x-PT) were prepared by mixed oxide method.Structural characterization was performed by X-ray diffraction and shows a tetragonal structure at room temperature.The lattice parameter c/a ratio decreases with increasing of La(x = 0.05–0.20) concentration of the composites.The effect of charge carrier/ion hopping mechanism,conductivity,relaxation process and impedance parameters was studied using an impedance analyzer in a wide frequency range(102–106Hz) at different temperatures.The nature of Nyquist plot confirms the presence of bulk effects only,and non-Debye type of relaxation processes occurs in the composites.The electrical modulus exhibits an important role of the hopping mechanism in the electrical transport process of the materials.The ac conductivity and dc conductivity of the materials were studied,and the activation energy found to be 0.81,0.77,0.76 and 0.74 e V for all compositions of x = 0.05–0.20 at different temperatures(200–300 °C).     

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.     

Quantitative Analysis of the Crystallographic Orientation Relationship Between the Martensite and Austenite in Quenching–Partitioning–Tempering Steels

The orientation relationships(ORs)between the martensite and the retained austenite in low-and medium-carbon steels after quenching–partitioning–tempering process were studied in this work.The ORs in the studied steels are identified by selected-area electron diffraction(SAED)as either K–S or N–W ORs.Meanwhile,the ORs were also studied based on numerical fitting of electron backscatter diffraction data method suggested by Miyamoto.The simulated K–S and N–W ORs in the low-index directions generally do not well coincide with the experimental pole figure,which may be attributed to both the orientation spread from the ideal variant orientations and high symmetry of the low-index directions.However,the simulated results coincide well with experimental pole figures in the high-index directions{123}_(bcc).A modified method with simplicity based on Miyamoto’s work was proposed.The results indicate that the ORs determined by modified method are similar to those determined by Miyamoto’method,that is,the OR is near K–S OR for the low-carbon Q–P–T steel,and with the increase of carbon content,the OR is closer to N–W OR in medium-carbon Q–P–T steel.     

The Mirror with Patterns of Auspicious Animals and Grapes——Exquisite cast mirror and the technology of surface tin-enrichment by rubbing-in and infiltration of tin-rich powder

<正>Bronze mirrors were used by the Chinese people before the introduction of the glass mirror.Only after it was replaced by the glass mirror did the bronze mirror gradually retreat from people's lives.Different styles of bronze mirrors were made in different historical periods,particularly in the Warring States Period,the Han and Tang Dynasties,which were the three peaks of the development of bronze mirror arts in ancient China.The casting techniques were exquisite.The surface of the bronze mirror was smooth and bright enough to reflect one's image,and there were scarcely any casting defects on the mirror surface.On the back of the bronze mirror,there were rich depictions of Arts and Humanities,and the ornamentations were also     

The 9th China International Diecasting Congress & Exhibition

The 9th China International Diecasting Congress ＆ Exhibition was held on July 22-24, 2014 at Shanghai New International Expc Centre. This exhibition was the most successful over the years, with over 6890 visitors and 155 exhibitors, and the exhibition area increased by 30% from 9,500 square meters in 2012 to 12340 square meters. Die casting enterprises from a total of 24 countries and regions, including China mainland, Chinese Taiwan and Hong Kong, South Korea, Japan, Germany, India, Thailand, Malaysia, the United States, Russia, Australia, Iran, Ukraine, Brazil, Colombia, Singapore, Austria, Canada, Croatia, France, Turkey, United Kingdom, Vietnam, attended the congress and exhibition.     

Introduction of the Fluid Control Engineering Institute of Kunming University of Science and Technology

正The Fluid Control Engineering Institute of Kunming University of Science and Technology was set up in 1996.The researches of institute concentrate on electro-hydraulic(pneumatic)servo/proportional control and hydromechatronics.The Institute is committed to research and development of electro-hydraulic control of high-end technical equipment in ferrous metallurgy refining produc-     

RARE METALS Volume Contents

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