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<正>作为中国最早、规模最大的薄膜装备制造商,金明精机一直掌握着多层共挤薄膜技术的先进制造工艺,同时引领国内行业技术创新。随着整个塑料包装行业的繁荣发展,客户对高端产品设备的需求逐步增加。对此,金明精机高端Superex系列设备从设计之初,并以满足自动化控制和高性能需求客户为宗旨,其设计理念和技术工艺都达到全球尖端水平。Superex系列设备具备高自动化控制、高产能等特征,除了其加工工艺、模头及流道设计等部件因素有关系外,由金明自主研发和生产的新一代高效多风口冷却风环,是设备的一大亮点, 相似文献
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高端装备制造业是中国制造2025的重点发展产业之一,近年来,协同创新对高端装备制造业发展的作用日益显现。依据高端装备制造业协同创新的特征,构建了其运行机制,包括动力机制、整合机制、评价激励机制和利益分配机制4大模块,提出了提升高端装备制造业协同创新水平的建议。 相似文献
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作为战略性新兴产业之一的高端装备制造业,发展重点在于重大成套装备制造技术,如航空航天、海洋工程装备和高速铁路装备等。尖端复合材料、防腐涂料、防水材料等化工产品的广泛应用,可为工作于太空、海洋和陆地的特殊高端装备保驾护航。 相似文献
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在2006年11月19日北京国际汽车展览会上,三角集团有限公司自主研制的335/80R20半钢越野子午线轮胎正式亮相。越野轮胎是军用越野汽车的重要配套部件,其性能和技术水平直接影响军车装备的机动性能。为了发展高性能的军车,各国都十分重视军车轮胎的研发。目前,欧美国家的军车已全 相似文献
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设备工程板块是企业运营系统的硬件平台。在科技进步和机械化、智能化高速发展的今天,特别是高端智能装备技术的应用,设备对生产经营活动的拉动作用越来越大。高端智能化装备已经在子午胎行业中显现了简化流程、节约资源和绿色生产的综合效益。企业在新建和运行维护期都投人大量的资金、资源。高端智能化制造平台的搭建,不但需要更大量的投入,更要求实力强大的技术和管理来维护生产装备的可靠运行。 相似文献
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罗益锋 《高科技纤维与应用》2014,(4):8-17
论述10种主要增强用特种纤维及其复合材料的研发现状与发展前景,目前碳纤维(CF)的最大市场是航空航天和国防军工约占40%,而到2020年汽车将成为CF的大型市场,达到与前者相当的约2.3×10^4 t。对位芳酰胺纤维(P-ARF)的需求将以10%的速率增长,最大用途仍是光缆、防弹和橡胶制品。超高相对分子质量聚乙烯纤维(UHMWPEF)技术上有重要突破,使防弹性能提高25%,而质量下降20%,并应用于人体医疗领域。聚酰亚胺纤维(PIMF)无论作为是耐热纤维或高强高模纤维我国都有重要进展,其中碳化硅纤维(SiCF)在我国开始迈向产业化,而玄武岩纤维(BSF)我国已迈入世界先进水平,但中间相沥青碳纤维(M-PCF)、聚苯并双噁唑纤维(PBOF)和聚芳酯纤维(APETF)则产业化步履艰难。2020年我国可望成为特种纤维及其复合材料的生产大国。 相似文献
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There is a recent and growing interest in joining ceramic parts due to their increased use in several fields such as next-generation nuclear plants, aeronautic engine parts and aerospace components. For high temperature applications, glass-ceramics are used as an “adhesive” for ceramic parts, this generates the need for test methods suitable to assess their bond strength. Unfortunately, the various test procedures currently used lead to different results.One recent test is based on torsion of hourglass shaped joined ceramics, originated from a modification of the ASTM F734-95 standard, with the aim of obtaining failure under a pure shear state in the bondline subjected to torsion.However, results obtained from different versions of the hourglass geometry show differences which are still difficult to compare. Moreover, due to the brittle nature of the materials and especially when the adhesive strength is comparable to that of the substrates, the failure is not confined in the bond and propagates also in the substrates. In this case, the results are still of arguable application for design purposes.The aim of this paper is to give an insight on torsion of hourglass-shaped joined ceramics and on the interpretation of the obtained results, by means of detailed analytical and numerical studies of the stress distribution in the specimen, and taking into account the brittle nature of the materials. The main findings are: i) the stress state in the bondline is not singular; ii) a non-negligible stress concentration arises out of the bondline. 相似文献
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选择性激光烧结(selective laser sintering, SLS)是一种重要的3D打印加工技术,可制备传统加工无法制备的任意复杂形状的制件,广泛应用于航空航天、国防装备、医疗器械以及汽车等高新技术领域。本文介绍了SLS技术的加工原理和优势,综述了SLS技术加工成形用材料种类及聚合物基粉体材料的制备方法,主要包括相分离法、机械粉碎法、溶液法和喷雾干燥法。重点对SLS技术制备聚合物基压电复合材料及制品的国内外研究现状进行总结。虽然SLS打印制造技术面临聚合物原料种类少、功能缺乏、粉体生产成本高以及难以批量制备等瓶颈问题,但经过不断地创新与发展,SLS打印技术将成为高性能多功能高分子复合材料及其大型复杂制件的极佳制造方法。 相似文献
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航天先进复合材料的现状与展望 总被引:9,自引:0,他引:9
航天先进复合材料是航天高技术重要组成之一,对航天高技术有举足轻重的影响。航天高技术从军事对抗和环境条件方面对先进复合材料提出了许多特殊的需求;介绍了航天先进复合材料的研究进展。 相似文献
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主要介绍了碳纤维及其复合材料的创新与发展动向,包括主要企业最新动态,以及中间相与通用级沥青基碳纤维、其他原丝的低成本碳纤维、对位和间位芳酰胺纤维、碳化硅和氧化铝陶瓷纤维的最新创新动向和扩大应用情况。指出高性能纤维及其复合材料的工艺技术创新,体现在生产工艺的高效化、产品的高性能化和低成本化以及应用领域的不断扩大,其中各种助剂起着重要作用。 相似文献
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Thermal spray technique in chemical equipment and machine construction – Plant, materials, applications . The metal spray technique originally used only for repair applications is nowadays also used for production of new equipment since the attainable life expectancy of the coated parts plus the possibility of using inexpensive basic materials result in a significant increase in economy. The use of thermal spray coats in the manufacture of chemical plant calls not only for high adhesion and freedom from pores and cracks but also for good corrosion resistance. The high technological level which has been reached in spray processes as well as the development of suitable spray materials have meant that a satisfactory solution has now been found to a large number of the problems that were still outstanding a few years ago. 相似文献
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Ceramics and ceramic reinforced metal matrix composites (MMCs) are widely used in severe working conditions and have been applied in biomedical, aerospace, electronic, and other high-end engineering industries owing to their superior properties of high wear resistance, outstanding chemical inertness, and excellent properties at elevated temperatures. These superior properties, on the other hand, make it difficult to process these materials with conventional manufacturing methods, posing problems of high cost and energy consumptions. In response to this problem, direct additive manufacturing (AM), which is equipped with a high-power-density laser beam as heat source, has been developed and extensively employed for processing ceramics and ceramic reinforced MMCs. Compared with other direct AM processes, laser deposition-additive manufacturing (LD-AM) process excels in several aspects, such as lower labor intensity, higher fabrication efficiency, and capabilities of parts remanufacturing and functionally gradient composite materials fabrication. Besides these benefits, problems of poor bonding, cracking, lowered toughness, etc. still exist in LD-AM fabricated parts. This paper reviews developments on LD-AM of ceramics and ceramic reinforced MMCs in both bulk parts fabrication and cladding. Main issues to be solved, corresponding solutions, and the trend of development are summarized and discussed. 相似文献