PF—Ⅱ尼龙流变行为研究

用ＸＬＹ－Ⅱ型流变仪研究了ＰＦ－Ⅱ尼龙的流变行为，得到了熔体表现粘度与温度，剪切应力，剪切速率的流动曲线以及剪切应力与剪切速率的关系，结果表明，ＰＦ－Ⅱ尼龙是非牛顿假塑性流体；表观粘度与温度关系符合Ａｒｒｈｅｎｉｕｓ方程，随温度升高，非牛顿指数变大，在２１０～２５０℃范围内，其非牛顿指数ｎ为０．４９～０．６５，恒剪力应力τ，下的粘流活化能∧Ｆ，随τ的增大而稍在减小。     

配合物[Fe(bipy)2]3+修饰的MCM-41的合成与表征

以γ－氨丙基修饰介孔分子筛ＭＣＭ－４１内孔壁,将引入的γ－氨丙基与金属配位离子「Ｆｅ（ｂｉｐｙ）２」＾３＋通过配位键首次合成了金属配位化合物修饰的ＭＣＭ－４１（ＭＣＭ－ａｐ－Ｆｅ（ｂｉｐｙ）２）。通过ＸＲＤ,７７Ｋ氮气吸附－脱附曲线,固体ＵＶ－ｖｉｓ漫反射光谱和循环伏安曲线表征了复合物ＭＣＭ－ａｐ－Ｆｅ（ｂｉｐｙ）２。由于「Ｆｅ（ｂｉｐｙ）２」＾３＋的引入,使ＭＣＭ－ａｐ－Ｆｅ（ｂｉｐｙ）２的结晶     

配合物[Fe(bipy)2]3+修饰的MCM-41的合成与表征

以γ－氨丙基修饰介孔分子筛ＭＣＭ－４１内孔壁,将引入的γ－氨丙基与金属配位离子［Ｆｅ（ｂｉｐｙ）２］３＋通过配位键首次合成了金属配位化合物修饰的ＭＣＭ－４１（ＭＣＭ－ａｐ－Ｆｅ（ｂｉｐｙ）２）．通过ＸＲＤ,７７Ｋ氮气吸附－脱附曲线,固体ＵＶ－ｖｉｓ漫反射光谱和循环伏安曲线表征了复合物ＭＣＭ－ａｐ－Ｆｅ（ｂｉｐｙ）２。由于［Ｆｅ（ｂｉｐｙ）２］３＋的引入,使 ＭＣＭ－ａｐ－Ｆｅ（ｂｉｐｙ）２的结晶度降低, ＢＥＴ比表面积、孔容和最可几孔径急剧下降．γ－氨丙基与Ｆｅ３＋的配位而使其ＵＶ－ｖｉｓ漫反射吸收光谱与ＭＣＭ－Ｆｅ（ｂｉｐｙ）２不同;循环伏安特性曲线表明ＭＣＭ－ａｐ－Ｆｅ（ｂｉｐｙ）２在电化学上比浸渍法制备的ＭＣＭ－Ｆｅ（ｂｉｐｙ）２稳定．     

PF尼龙的辐射交联

研究了长碳链聚酰胺ＰＦ尼龙的辐射交联。ＰＦ尼龙Ｉ＃的起始胶化剂量Ｒｇ为０．３３－０．３５ＭＧｙ，ＰＦ尼龙Ⅱ＃的Ｒｇ为０。４３－０。４７ＭＧｙ。用ＩＲ，Ｒａｍａｎ和ＤＳＣ研究了辐照ＰＦ尼龙的化学结构和热学性质。结果表明，辐照交联ＰＦ尼龙分子链上有Ｃ＝Ｃ和Ｃ＝Ｎ键结构产生，其熔融热△Ｈｍ，结晶热△Ｈｃ，结晶温度Ｔｃ和熔融温度Ｔｍ随辐照剂量Ｒ的增加而降低。空气中的氧对ＰＦ尼龙的辐射交联有一定影响。     

表面微观形貌测量中光探针大小对测量结果的影响

以ＡＦＭ测量的表面微观形貌为基础，采用数值仿真技术，定量地分析光探针直径对表面微观形貌测量的影响。结果表明：评定参数Ｒａ，Ｒｑ，Ｒｙ，Ｒｚ，Ｒｋｕ以及平均轮廓斜率和最大轮廓斜率都随光探针直径的增加而减小，Ｒｓｍ随光探针直径的增大而增大，而Ｒｓｋ不随光探针直径单调变化。     

NiO／NiFeCo／Cu／NiFeCo自旋阀结构的巨磁电阻效应及影响因素的研究

用电子蒸发的方法制备ＮｉＯ／ＮｉＦｅＣ／Ｃｕ／ＮｉＦｅＣｏ自旋阀多层膜,通过磁场中退火得到好的偏置型自旋阀ＧＭＲ效应。通过对制备态以及磁场退火后样品的ＭＲ曲线的研究,讨论了交换耦合作用,单层磁性能以及层间耦合作用对材料ＧＭＲ效应的大小和磁场灵敏度的影响,得出提高交换耦合作用,改善单层磁性能和尽可能减小层间耦合将有得于得到高性能的偏置型自旋阀ＧＭＲ材料的结论。     

面向柔性制造系统的非传统工件安装方法及其应用技术

回顾了国内外关于面向柔性制造系统的工件安装方法及其研究动态，介绍了无基准零件密封技术（Ｒｅｆｅｒｅｎｃｅ Ｆｒｅｅ Ｐａｒｔ Ｅｎｃａｐｓｕｌａｔｉｏｎ－ＲＦＰＥ）的基本原理、组成和工艺过程，指出了该项技术用于生产实际尚存在的不足，提出并研制了快速寻位与状态记忆（Ｒａｐｉｄ Ｌｏｃａｔｉｎｇ ａｎｄ Ｓｔａｔｅ Ｍｏｍｏｒｙ－ＲＬ＆Ｍ）通用夹具系统，以促进ＲＬ＆ＳＭ安装技术在敏捷制造中的应用。     

玻纤增强尼龙1010的辐射稳定性研究

研究了玻纤增强尼龙１０１０（ＧＲＰＡ１０１０）和尼龙１０１０（ＰＡ１０１０）的力学性能受γ辐照工艺的影响。结果表明，ＧＲＰＡ１０１０和Ｐ１０１０的拉伸强度σ受辐照剂量Ｒ的影响很小；在Ｒ＜０．５ＭＧｙ时，ＧＲＰＡ１０１０和ＰＡ１０１０的冲击强度和断裂伸长率ε皆随Ｒ的增加而降低；Ｒ＞０．５ＭＧｙ后，它们的ε继续随Ｒ的增加而下降，而ＧＲＰＡ１０１０的σ则不受Ｒ的影响。ＧＲＰＡ１０１０的辐射稳定性优于ＰＡ     

镍催聚1,4-聚丁二烯橡胶的σy,[η]和τ值与其内在的相关性

比较稀土催化聚１，４－聚丁二烯橡胶和二几种不同温度下聚合的镍催聚１，４－聚丁二烯橡胶的σｙ和「η」，从中得到链缠结的变化是影响σｙ和「η」以及τ的主要原因，而微观结构的变化可以是影响链缠结的因素之一，１，４－聚丁二烯橡胶的加工性能与链缠结有关。     

NiFeNb薄膜的磁特性及磁阻效应研究

研究了射频磁控溅射膜（Ｎｉ８１Ｆｅ１９）１００－Ｎｂｘ的各向异性磁阻效应ＡＭＲ、矫顽力Ｈｃ、饱和磁化强度４ｘｍｓ和饱和磁化场Ｈ。研究其作为磁阻磁头材料和低磁场高灵敏度材料的可能性。我们发现Ｎｂ的含量对（Ｎｉ８１Ｆｅ１９）１００－ｘＮｂｘ的各向异性磁阻效应ＡＭＲ＝２％、矫顽力Ｈｃ＝１１９Ａ／ｍ和饱和磁化场Ｈｘ＝４４５Ａ／ｍ，适宜于低磁场高灵敏度检测材料。     

Effect of Permeable Crystalline Material on Steel Reinforcement Corrosion of Concrete

Permeable crystalline materialcan permeate into pores and cracks of concrete and catalyze the reaction between Ca(OH) 2and unhydrated cement to generate a great quantity needle non-soluble crystals, which can stop up the pores and cracks of concrete, and increase the impermeability of concrete. This paper reported the results of a study conducted to evaluate steel reinforcement corrosion of concrete specimens uncoated and coated with permeable crystalline material as well as mixed with the permeable crystalline material. The properties evaluated for corrosion test were water impermeability, water absorption, compressive strength and potential. The results of water impermeability, water absorption, compressive strength clearly showed that the permeable crystalline material could prohibit water, any soluble salts and moisture from penetrating the concrete to cause corrosion, leaking, and other problems, and it did increase the compressive strength, which was favorable for protection of corrosion of reinforcing steel. Moreover, it was concluded from the potential-time curve that the steel reinforcement of uncoated specimen was in the state of activation whereas that of other specimens coated and mixed with the permeable crystalline material was in the state of inactivation. Above all, it was indicated that the permeable crystalline materialis very effective to protect the steel reinforcement of concrete from corrosion.     

The Research and Application About "Dry Peeling Off" Technology for Airplane Surface Paint Layer

In this paper, the principle of spurting take off lacquer were introduced; and with orthogonal method the unsaturate polyester was prepared ;it was easy to peel airplane paint layer off with this material and equipment.     

Quality Study of Honeycomb Core Shaping Without Wax Stabilization

Sandwich panels utilizing honeycomb cores result in lightweight, high-strength units that are very rigid. Indeed, they give honeycomb panels the best strength-to-weight ratio of any construction type available. Conventionally, the wax is poured into the cell of the core to strengthen the structure and prevent the core from being crushed during milling. Much time and labor is required to wax, mill, and clean the cores. In this study, the process of pouring wax into the core was skipped. In other words, the cutter directly milled the core. Experiments showed that the compressive strength of the core produced without wax stabilization was only 3% lower than that of cores produced using the traditional method. In addition, the drum peel strengths of cores produced without wax stabilization were 38.4% higher than cores produced using the traditional method, in which residual wax seriously polluted the adhesive. It was also found that eliminating the wax process can reduce costs.     

In-process thermal treatment of polylactic acid in fused deposition modelling

Polylactic acid (PLA) is one of the most widely used open source fused filament fabrication materials due to its ease of extrusion, biodegradability, and mechanical strength. The mechanical strength of PLA largely depends on the proper growth of its semi-crystalline structure, which can be severely impaired by a low rate of crystallization, particularly in open source printers. This can be further aggravated by the non-uniform thermal distribution of heat that causes improper curing among the extruded beads of the printing material. As a result, PLA printed on open source printers does not achieve the best mechanical properties. This research, for the first time, proposes an additive-free solution implemented through a detailed set of experimentation to improve the curing rate through in-process temperature variations to cure the joints among the beads. Scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and Fourier transform infrared (FTIR) spectroscopy is used to confirm the improvements in the bead joints. This work is conducted in two phases of experiments. In the first phase, a full factorial ANOVA is used to investigate various process parameters and the important variables are used in the second phase to print test specimens in four different sets.     

Investigation of the Corrosion Behaviors of HVOF-Sprayed Carbide Cernet Coatings in Molten Al-Zn-Si Alloy Bath

In continuous hot-dip galvanization process the corrosion and chemical stability of the sink roll in the galvanizing bath are important problem which effects on the quality and productivity. In order to protect the sink roll the carbide cermet and/or ceramic coatings were deposited on the surface of the sink roll. The WC-, Cr3 C2-cermet coatings were deposited by high velocity oxygen fuel (HVOF) spray, respectively. The coating samples were immersed in molten Zn-alloy containing 50 wt % aluminum at 833 K for 24 hr and 144 hr, respectively. The inter-diffusion and inter-reaction of Zn, Al and elements in coating and corrosion behaviors of these coatings were investigated by XRD, SEM and EPMA etc. The corrosion mechanisms of the carbide cermet coatings and ceramic coatings in molten High Al-Zn-alloy were approached.     

Fundamental study of adhesion of ice to cooling solid surface (Discussion on influence of copper oxide layer on ice adhesion force)

In many situations, ice often adheres to a cooling solid surface, frequently causing serious accidents. It is critical to clarify the mechanism of ice adhesion to the cooling surface in order to prevent ice adhesion. In a past study, the shearing stresses of two kinds of test plates with a copper surface having the higher thermal conductivity were measured. The shearing stress corresponds to ice adhesion force. Both shearing stresses were significantly different; however, the cause remains unclear.Therefore, the present study focuses on an oxide layer as the main factor causing the difference of both shearing stresses; the influence of the oxide layer formed on shearing stress was discussed. And in the removal and reformation processes of the oxide layer, the time variation of the shearing stress was clarified. Moreover, the relationship between the state of the copper surface and the shearing stress was also clarified by surface analysis.     

重塑标准推行格局 推动LED照明的普及（英文）

正When you are enjoying the green,energy-saving and healthy lighting of IKEA LED luminaire,you may not realize that most of IKEA’s LED bulbs are produced by the LED luminaire smart manufacturing system of Hangzhou Zhongwei Photoelectricity CO.,LTD(ZVISION).No longer enclosed in the laboratory,the product standards are brought into the factory workshop and even to the entire production process.Thus,the standards are promoted and applied in a favorable way by enterprises,benefitting consumers with high quality products.     

Chinese Experts Contribute to ISO＇s New Toy Standards

正The international standard,ISO 8124-6,Safety of toys–Part 6:Certain phthalate esters in toys and children’s products,was officially issued by ISO worldwide on August 15.It was the first time for Chinese experts to lead the ISO standard development in toys industry.The standard was drafted by a group of Chinese experts from SAC/TC for toys and relevant Chinese departments and finally completed by a dedicated international group of experts.ISO 8124-6 makes a substantive breakthrough in the aspects of the scope of toys,limitation of plasticizer types,control of test cost,accuracy of test,operation convenience,etc.,offering the operational guidance for toy manufactures and testing laboratories.     

中国质量(北京)大会(英文)

正Themed on"quality,innovation,development",the first China Quality Conference(Beijing)was held in the Great Hall of the People on September 15.Chinese Premier Li Keqiang delivered an important speech at the conference.State Councilor Yang Jing and Wang Yong attended the conference with over 600 domestic and international representatives from foreign,regional and international quality organizations     

National Working Meeting on Land and Resources Standardization

正The National Working Meeting on Land and Resources Standardization was held in Beijing on July 15,2014.Wang Min,the Deputy-Minister of the Ministry of Land and Resources,and Yin Minghan,the Chief-Engineer of SAC addressed the meeting.Representatives from relevant competent departments and technical committees were present.The meeting aims to summarize work,discuss existing problems and make clear working thoughts,promoting standardization work of land and resources to a new level.Wang Min pointed out that the standardization work of land and resources should be centered on the basic principles of"protecting land and resources dutifully,intensively and economically utilizing land and resources,and making all-out efforts to safeguard the public’s rights and interests",highlighted the