引起电动自行车胎胎耳烧边的原因及改善措施

随着代步工具的发展，电动自行车越来越受到人们的青睐，电动自行车轮胎的产量也越来越高。电动自行车轮胎质量的好坏直接影响到产品的美誉度。经调查，电动自行车轮胎胎耳烧边的问题已成为困扰大多数生产厂家的难题之一，本文阐述电动自行车轮胎胎耳烧边的原因及引发的结果，并就此提出改善的方案。     

上海公布共享单车轮胎标准

<正>上海公布中国首个共享自行车团体标准,并确定2017年10月1日起正式实施。该标准由上海市自行车行业协会和天津市自行车电动车行业协会共同牵头完成。该标准规定,共享自行车的轮胎需要与车轮一起通过温室效应试验和疲劳强度试验后,才能确定为合格产品;共享自行车的报废时限为3年,其所在公司拥有报废自行车轮胎的处理和再利用权利。业内专家表示,近年来,随着共享自行车的火爆,     

丙烯酸漆在铝合金自行车上的应用

铝合金自行车强度高,重量轻,耐腐蚀,是一种新型产品,特别适合大、中城市及潮湿地区使用。1983年全国自行车总产量近3000万辆,其中铝合金自行车仅占自行车总拥有量的0.025％。随着城乡高层建筑的增加和人民生活水平的提高,预计今后十年铝合金自行车产量将成倍增长,因此必须提高其装演水平。     

米其林集团即将推出缺气保用自行车内胎

米其林集团即将推出适用于城市自行车和山地自行车的新款自行车内胎ProtekMax。据介绍,该产品具有三大特点：一是在被扎破时,轮胎能够自动弥合,防止漏气：二是当自行车处于非使用状态下,能够大幅减少漏气,保持胎压稳定;三是内胎非常便于拆装。此外．内胎采用特殊的表面纹路和方形设计。是自行车内胎领域中的一项全新理念。     

墨西哥取消中国自行车轮胎反倾销税

墨西哥经济部决定 ,从 2 0 0 4年 9月 2 3日起将取消对从中国进口的自行车轮胎和内胎征收的反倾销税。这项决定说 ,由于墨西哥国内自行车生产商没有书面提出要求对中国的这类产品征收反倾销关税进行有效性审核 ,因此 ,取消针对中国产自行车轮胎和内胎的反倾销税。今年 8月墨西哥全国自行车生产商协会和其它一些自行车生产厂家提出申请 ,要求墨经济部对从中国进口的自行车进行反倾销调查。早在1 994年 9月 ,墨经济部对从中国进口的自行车以及自行车轮胎和内胎进行过反倾销调查 ,并作出最终裁决 ,对中国产自行车以及自行车轮胎和内胎分别征收 …     

自行车轮胎生产发展趋势

分析国内外自行车轮胎生产现状．对生产和产品发展的趋势进行探讨并提出了相关建议。自行车轮胎需求量有增无减，规格品种不断增加，但生产中心已发生转移。加大技术投入和提高出口量应是我国自行车轮胎生产发展的战略目标。     

奥地利胜利自行车厂涂漆引进生产线介绍

奥地利胜利自行车厂涂漆引进生产线介绍陈琴生（凤凰自行车公司二分厂，２０１１０８）奥地利胜利自行车厂是奥地利较大的自行车生产厂家，年产各种款式的自行车３０万辆。近几年由于欧洲工人工资不断增加，促使劳动密集型的产品逐步转向高技术产品。该自行车厂于１９８６...     

固特异推出高性能自行车轮胎系列

固特异作为一家拥有120年历史的轮胎制造商,其在1898年成立时的第1款产品就是自行车轮胎。日前,固特异再次推出全新高性能自行车轮胎系列,标志着固特异重返这一细分市场。固特异与Rubber Kinetics LLC公司通力合作,经过两年的研发,共同开发高性能自行车轮胎。全新高性能自行车轮胎所采用的胎面复合材料均由固特异独立研发.     

不打气的自行车轮胎前景宽广

我国是一个自行车王国,不仅自行车拥有量多,而且产量占世界的1/3。主要城市平均1.5人一辆,已达到饱和状态。自行车轮胎需要经常打气,使用不便,因之世界上不少热心的专家在研究不打气、不需要内胎的实心轮胎,这种产品对骑自行车的人有很大的魅力。     

天津4个品牌自行车胎不合格

前不久,天津市质监局发布了今年第一批自行车轮胎产品质量监督抽查结果,在抽查的30个批次中,合格26批次,合格率为86.67%。其中不合格产品分别是标称为天津市协和橡胶制品有限公司生产的"协和"牌自行车外胎、天津市昊远达橡胶制品有限公司生产的"昊远"牌自行车内胎、天津市静海县海亿达车胎厂生产的"玉牛"牌自行车内胎、天津市武清县兴旺车胎厂生产的"诺程"牌自行车外胎。     

自行车把套的3D打印定制

针对市场对产品个性化日益增长的需求,对自行车把套进行3D打印定制案例研究.对市场上自行车把套的特点和定制方法进行分析,运用Solidworks进行把套初样模型的设计,以其3D打印件作为骨架制作油泥模型,通过视觉和手掌触握的检验方法进行修补和完善,构建出高贴合度和舒适度的把套曲面轮廓,实现"以物适手".3D扫描采集油泥模...     

Product design: Formulation of a screen-printable sintering-type conductive paste

Due to the complexity of the screen-printing operation and the rheological behaviors of the screen-printable paste, such a paste is usually formulated by trial-and-error. In this report, a systematic procedure, based on heuristics and mechanistic models, for the design of a screen-printable paste is developed. The procedure is demonstrated by a case study of the formulation of a conductive paste of copper particles.     

平板玻璃成品库优化设计

对成品库不同跨距、柱距、檐口高度进行了主钢材用量和基础混凝土用量计算,陈述了最经济的成品库设计方案的选择依据。     

碳纤维自行车车架的研制与开发

开发生产碳纤维自行车是当今自行车工艺领域致力研究的课题，本文介绍国内外碳纤维自行车研制的过程和现状取得成果的基础上，着重对整体车架从形态设计，有限元受力分析，成型工艺三个方面进行的研究和开发进行了分析。     

乙烯产品的设计

采用化学产品设计:需要、思路、选择、制造、经济等5个步骤介绍在上海漕泾化学工业区设计的900kt/a乙烯装置和其他衍生物装置及其上下游一体化工程。它的建成对整个华东地区乃至长江沿江地区的塑料加工、精细化工、汽车制造、建材加工和电子工业等的促进和发展都有重要意义,能够产生很大的经济效益和社会效益。     

Product color emotional design considering color layout

Emotional experience and demand for product colors are important factors in users' decisions to buy and use a product. Therefore, accurately characterizing users' emotional responses of the product's color has become a significant consideration for product color design. However, a product color design problem exists in which it is challenging to accurately and efficiently position users' color image space because consumers have completely different image perceptions when encountering a large number of color schemes generated by different color spatial distributions. For this reason, this article proposes a product color emotional design method that considers the color layout. A table is built of an elemental composition for product color design, which contains color layout forms. This article also establishes a mapping model based on the semantic difference and back propagation neural network between the users' color image perceptions and the elements of the product's color design. The system recommends a color layout form that matches the users' emotional image goal through the k‐nearest neighbor algorithm, and then the form is initialized using a genetic algorithm. The system can realize the solution to the optimal product color scheme by optimizing and evaluating the population. Designers can make intuitive choices and decisions through the product color recommendation system. Through an example of color design for industrial vacuum cleaners, this article shows that the method has satisfactory feasibility and applicability for solving the problem of the optimization of product color design with color layout forms.     

Product color emotional design adaptive to product shape feature variation

When a user selects a product, he/she considers the emotional experience induced by the product color. However, when affected by product shape feature, the color image perception space of a user becomes more complex and dynamic. To address this problem, a product color emotional design method adaptive to product shape feature variation is proposed in this article. Based on psychological means, factor analysis and semantic differential methods are used to elucidate the mechanism for the formation of a color image perception space of a user influenced by product shape feature. Using support vector regression, a product color image evaluation model adaptive to product shape feature variation is constructed, and is then optimized via a genetic algorithm. A corresponding design system is constructed based on the method proposed in this article. A case study involving the design of a thermos for children is presented to demonstrate the operational procedure involved in the proposed method and to verify its performance. The results of the verification experiments confirm that the design scheme from system recommendation essentially meets the anticipated image target and assists the designer effectively. The method and system proposed in this study can generate a product color design scheme, which is unconstrained by shape feature and can satisfy user emotional preferences and needs, and have a certain applicability and practicability.     

Product design: A pricing framework accounting for product quality and consumer awareness

A systematic framework has been developed to determine the optimal price of a completely new (or existing but improved) chemical product that is being launched (or relaunched) in the presence of a competing product. It has four elements. The first is a pricing model derived from a utility function with constant elasticity of substitution. It accounts for consumers' awareness of the product under consideration and consumer preferences. The second is a set of relationships relating the consumer preferences and the relevant sales data available to a relaunched product to the parameters of the pricing model. In the absence of sales data for a completely new product, the third element is a set of heuristics for choosing a pricing strategy and estimates of the pricing model parameters. The optimal price is finally determined in a profit maximization problem subject to the market size as well as any other constraints. This pricing framework allows simultaneous optimization of product quality and price using product specifications as design variables. It is illustrated with an example on energy drinks. © 2018 American Institute of Chemical Engineers AIChE J, 64: 2462–2471, 2018     

气相法聚乙烯装置反应出料系统配管设计

介绍气相法聚乙烯装置反应出料系统的工艺流程及其特点,通过对主要管道布置的详细对比分析以及其支架的设置与选择,优化配管设计。     

论陶瓷产品设计的空间要素

在当代陶瓷产品设计中，空间作为形体中的一个抽象概念。从不同角度反映了设计师赋予产品的各种内涵意义。形体上的实空间为产品的存在提供了前提条件，虚空间的出现让产品具备了其基本的物质功能，而心理空间的存在又把陶瓷产品推向一个更高的精神层面。研究和把握陶瓷产品中的空间要素有利于了解产品形体构造，更深入理解产品含义，可为未来陶瓷产品设计创新服务。