今年1-2 月份，受季节性因素影响，主要宏观经济指标普遍不理想。工业增加值增速受投资需求和净出口回落影响大幅回落，固定资产投资增速受基建和制造业投资放缓影响继续下滑，社会消费品零售总额名义增速低于预期。此外，制造业PMI 指数连续三个月回落，新订单指数回落至低位，产成品库存指数上升，显示一季度经济运行平缓。具体到生产资料流通行业来看，今年春节临近1 月末，市场多数商家在1 月中旬就进入放假状态，到2 月中旬才陆续返岗。因此，1-2月份需求相对偏弱，库存消耗速度下降，市场价格大幅下跌，企业效益仍未有明显好转。目前经济运行的积极因素正在开始显现，如进入3 月份，市场逐渐启动，企业陆续恢复开工；服务业已经出现明显回升；世界经济整体发展势头良好，后期经济运行保持平稳仍有基础条件。

关键词：生产资料；煤炭；钢材；有色金属；天然橡胶；汽车

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Racing tires are customized, high-quality expensive tires intended for use on competitive race courses. These tires are designed to deliver better speed, superior road grip, traction, and safety and they undergo many tests for quality, durability, and speed. Racing tires help cars and motorbikes to maximize performance and acceleration. The Global Racing Tire market is growing at a steady pace and is expected to post a CAGR of 8.6 percent during the period 2013-2018. The sales of racing tires have gained momentum with a rise in the number and type of automotive racing competitions. Competitive racing has also gained in popularity in emerging economies, a crucial factor that is expected to drive market growth in the coming years. The highly competitive Global Racing Tire market was led by the EMEA region in 2013, followed by the Americas and the APAC region.

关键词：赛车轮胎；竞技比赛；市场分析

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2014年2月，虽然经济增长放缓给轻工行业带来不利影响，但行业仍然在大力拓展国内外消费市场，积极推进产业转型升级的基础上，总体保持平稳运行。与此同时，轻工行业进出口额整体保持稳定，行业经济运行质量总体有所改善，但细分行业差异化明显。
行业未来发展在保持行业稳定增长的前提下，将集中在产业结构优化上，而消费升级、城镇化进程加快、社会消费水平的提升则给行业发展提供了稳固的需求基础，预计2014年轻工行业规模以上企业产品销售收入将达到23万亿元，同比增长14%左右。

关键词：轻工业；造纸；纸制品；家具；塑料制品

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Plastic additives are chemical substances added to a polymeric compound to process, modify, or provide plastics with specific properties to make them more useful. Plastic additives make plastic safer, cleaner, tougher, and colorful. The various types of plastic additives include property modifiers, property extenders, property stabilizers, and processing aids.

关键词：塑料添加剂；处理；修改；化学物质；性能改进剂；增量剂属性；属性稳定剂

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关键词：天然橡胶；市场行情

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Tires, which constitute one of the integral components of a vehicle, are manufactured using raw materials such as natural or synthetic rubber including styrene-butadiene rubber and polybutadiene rubber, nylon tire cord fabric, and carbon black. Specialty tires are designed for specific weather conditions or specific vehicles. These tires are used in aircraft, two-wheelers, agricultural equipment, and various other OTR vehicles and equipment such as mining, construction, earthmoving, and industrial equipment. The demand for these tires is increasing significantly mainly because of the improving economy of developing economies that also increases people's purchasing power. The Global Specialty Tire market is currently growing at a steady pace and is expected to grow at a CAGR of 4.61 percent during the period 2013-2018. The production of two-wheeler tires has gained momentum, and the demand for OTR tires and aircraft tires is also expected to increase during the forecast period. The market is dominated by the APAC region, followed by the Americas and then the EMEA region.

关键词：轮胎；天然橡胶；合成橡胶；工程机械车辆；设备

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Tires, which constitute one of the integral components of an automobile, are manufactured using raw materials such as natural or synthetic rubber including styrene-butadiene rubber and poly-butadiene rubber, nylon tire cord fabric, and carbon black. Premium tires are high-cost tires that deliver high performance for which they undergo various quality, durability, and speed tests. Premium tires are mainly used in premium-class automobiles as they deliver improved performance, fuel efficiency, and ride quality. The Global Premium Tire market is currently growing at a good pace and is expected to post a CAGR of 9.72 percent during the period 2013-2018. Premium tires, recently, gained momentum because of growing demand for premium automobiles, which is expected to increase during the forecast period. The market is highly competitive and is led by the EMEA region, followed by the Americas and the APAC region.

关键词：轮胎；天然；合成橡胶；高性能

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采用毛细管流变仪，研究了30%玻纤(GF)增强尼龙（PA）66复合材料在270~300℃下的挤出流动性能。结果表明，剪切速率、温度对GF增强PA66复合材料熔体的流动性能均有影响。复合材料熔体的表观黏度随剪切速率的增加而降低，其对温度的依赖性符合Arrhenius方程。在实验结果的基础上，进一步对熔体流动的本构方程进行修正，建立了剪切速率、温度和黏度之间的关系模型。计算了模型中表征材料挤出流动性能的物性参数。

关键词：玻纤增强PA66复合材料;挤出性能;本构方程;物性参数;glass fiber reinforced nylon 66 composites;extrusion properties;constitutive equation;physical parameter

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研究了无卤、含磷添加型阻燃剂红磷、包覆红磷、聚磷酸铵、包覆聚磷酸铵、含磷膨胀型阻燃剂PNP、三聚氰胺焦磷酸盐等6种阻燃剂对硬质聚氨酯泡沫塑料阻燃及力学性能的影响。结果表明，随着阻燃剂添加量的增加，阻燃硬质聚氨酯泡沫塑料的极限氧指数(LOI)总体上呈升高趋势，拉伸强度呈先上升后下降趋势，而冲击强度呈逐渐下降趋势。包覆红磷和包覆聚磷酸铵阻燃材料的阻燃性能和力学性能均明显好于普通红磷和聚磷酸铵阻燃剂，PNP阻燃材料具有最佳的阻燃性能和力学性能，当PNP添加量为25%时，阻燃材料的LOI为29.5%，拉伸强度和冲击强度分别为5.3 MPa和8.7 kJ/m2。

关键词：聚氨酯;无卤阻燃;含磷阻燃剂;极限氧指数;polyurethane;non-halogen flame retardancy;flame retardant containing phosphorus;limited oxygen index

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热成型过程是一个复杂的生产过程,而制杯机拉伸头的形状结构对于制品的壁厚分布起关键性作用.CAE技术是目前解决产品开发、加工及模具设计中薄弱环节最有效的途径.比较了采用公式法和经验法设计拉伸头的优劣.利用基于有限元法的计算机流体力学(CFD)软件POLYFLOW,分析拉伸头关键尺寸对于壁厚分布的影响.以经验拉伸头为基础,对拉伸头的形状结构进行了优化,为同类制杯机拉伸头形状结构的优化提供了一种新的方法.

关键词：热成型;拉伸头;壁厚;POLYFLOW;优化;Thermoforming;Plug;Thickness;POLYFLOW;Optimization

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