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本文较系统地介绍了玻璃钢喷射成型的设备、技术,其中关于喷射成型对原材料的要求、喷涂方法及产品异常对策,对实际工作将有很好的指导作用。 相似文献
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本文介绍了顶开式保温车玻璃钢厢盖的技术要求、选材、成型模具及成型工艺方法,有较好的操作性,可供相关人员参考。 相似文献
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夹砂玻璃钢顶管的设计制作与施工 总被引:1,自引:0,他引:1
本文结合某饮水工程夹砂玻璃钢顶管项目的执行,详细介绍了该案例夹砂玻璃钢顶管的设计要求、详细设计、制作中的注意事项与体会、以及玻璃钢顶管的一般安装要求和安装步骤,随着玻璃钢顶管在国内不断的推广应用,本文对类似玻璃钢顶管工程的应用具有指导意义: 相似文献
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通过介绍如何利用CAESARⅡ软件对FRP管道进行柔性分析,进一步比较FRP管和金属管在柔性分析和支架设计中存在的差异,从而保证FRP管道设计的质量,特别是对大口径FRP管道的设计以及支架的设计提供可靠的依据. 相似文献
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国际海事组织IMO于2006年5月在英国伦敦举行了“海安会”MSC81次会议,达成了《船舶专用海水压载水舱和散货轮双舷侧边舱防护涂层性能标准》的决议。目前,全国船舶涂装技术进步指导小组和中国船舶检验局/中国船级社的海事处向阳处长在会上正式通告:该决议将在今年11月的MSC82次会议上转化为海上人命安全国际公约SOLAS强制性的国际规范,并于2008年7月1日或以后签订建造合同,2012年7月1日或以后交船的新造船项目生效实施。新决议规定了海水压载水舱的防护涂层体系的使用设计寿命的年限为15a,标准适用于所有排水吨位不小于500t的各类船舶压载水舱和长度不短于150m的散货轮双舷侧边舱的防护涂层体系。新决议成为SOLAS强制性的国际规范后,对我国的造船工业影响深远,尤其是我国中小型船厂的涂装工作将面临巨大的困难和挑战,对于只有2a的调整和适应时间,定要未雨绸缪。 相似文献
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Myint Myint Maw Junsheng Wang Fabo Li Jinhu Jiang Younan Song Xinxiang Pan 《International journal of molecular sciences》2015,16(10):25560-25575
Ship ballast water treatment methods face many technical challenges. The effectiveness of every treatment method usually is evaluated by using large scale equipment and a large volume of samples, which involves time-consuming, laborious, and complex operations. This paper reports the development of a novel, simple and fast platform of methodology in evaluating the efficiency and the best parameters for ballast water treatment systems, particularly in chemical disinfection. In this study, a microfluidic chip with six sample wells and a waste well was designed, where sample transportation was controlled by electrokinetic flow. The performance of this microfluidic platform was evaluated by detecting the disinfection of Dunaliella salina (D. salina) algae in ballast water treated by sodium hypochlorite (NaClO) solution. Light-induced chlorophyll fluorescence (LICF) intensity was used to determine the viability of microalgae cells in the system, which can be operated automatically with the dimension of the detector as small as 50 mm × 24 mm × 5 mm. The 40 µL volume of sample solution was used for each treatment condition test and the validity of detection can be accomplished within about five min. The results show that the viability of microalgae cells under different treatment conditions can be determined accurately and further optimal treatment conditions including concentrations of NaClO and treatment time can also be obtained. These results can provide accurate evaluation and optimal parameters for ballast water treatment methods. 相似文献
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主要介绍了使用六西格玛方法论对不同的验收原则进行系统地分析,可以帮助理识这些原则的真正内涵和它们各自之间的区别,有利于各个船厂正确地分析目前的涂装工序能力、确定理想的平均漆膜厚度、预测符合本厂实际的最佳漆膜厚度和目前的涂料消耗成本状况,以实现涂料使用量的理想化、减少涂料材料的消耗、减少漆膜厚度的偏差和提高涂装生产能力,赶超国际最高水平。 相似文献
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简要阐述了FRP/塑料复合管道在其所用的塑料内衬管外表面加工螺旋槽和将塑料内衬管两端翻出90°凸缘的相应加工技术。 相似文献
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Avinash Parashar 《The Journal of Adhesion》2013,89(10):866-880
Polymer-based materials are emerging as a potential substitute for metallic structures in the oil and gas industry. In this context, fiber-reinforced polymer (FRP) piping is one promising application. An important area of the research pertaining to FRP piping is the connection of pipe sections. Challenges associated with the joining of FRP tubular sections are often considerable, which limits more widespread industrial application. Adhesive bonding is emerging as a promising technique to join tubular FRP structures. The ability to maintain undamaged fiber architecture is a major advantage of adhesive bonding technology. In the present study a strength-of-materials as well as fracture mechanics approach was employed in conjunction with the finite element method to investigate the scaling effects on adhesively bonded tubular sections. It was found that the scaling effects in joined FRP pipe may be significant. For certain composite material configurations the analysis indicated a shift of the region of failure from the pipe structure to pure adhesive (cohesive) failure with increasing pipe diameter. 相似文献