浅谈高原边境运输车辆维修保障

主要讨论了高原边境运输车辆维修保障方法,以求为高原运输车辆维修提供理论基础.以运输车辆动力系统为例,先分析了高原地区环境对边境运输车辆动力系统的影响,并提出几点解决措施;再结合车辆维修系统的相关内容,对如何开展车辆维修保证进行讨论.正确认识到高原边境运输车辆维修保障方法,在提高车辆整体性能、强化其任务执行能力中具有重要意义,可以尝试多种技术的联合应用,切实提高车辆维修水平.     

CTP(generation)机器picker常见故障及处理

正CTP Generation news又称报业新一代,它以自动化程度高、出版速度快著称,picker是其主要部件之一。作为第一家使用该机器的厂家,使用四年来有了一些体会,今将一些常见故障及处理与大家交流一下。1.picker不水平,一边高一边低,吸版时报故障处理方法是:在servise shell软件里键入picker idle,使picker处于自由状态,然后将picker手动提起,用四周的固定销固定,手动拽拉picker的齿轮带,利     

浅析报纸印刷中的断纸现象

报纸印刷是一项与时间赛跑的工作,有很强的时效性.断纸已成为影响时效的主要因素,令印厂苦不堪言.同时断纸造成的二次开机,浪费了纸张等印刷耗材,也吞噬着印厂微薄的利润.     

Effect of ageing on fatigue properties of asphalt

The fatigue properties of asphalts were investigated after various laboratory simulation ageing tests and outdoor natural exposure ultraviolet radiation ageing,by dynamic shear rheometer(DSR) time sweep fatigue test in constant strain model and a new type of specimen which was introduced to avoid the problem of adhesion failure between rotor and asphalt binder.The results show that outdoor natural exposure ageing(NEA) causes the decrease of retained fatigue life distinctly,and photodegradation caused by outdoor NEA of 1 250 μm thin films asphalt for three months,is found to be severer than pressure ageing vessel(PAV) with respects to retained fatigue life.The effect of photodegradation increases as the time of outdoor NEA increases.DSR time sweep fatigue test in constant strain indicates that the aged styrene-butadiene-styrene(SBS) modified asphalt still displays better fatigue properties than the corresponding base asphalt after ageing.     

Investigation of rheological properties of TPS modified bitumen

Rheological properties of the virgin bitumen and TPS modified bitumen binders with several percentages of TPS additives were studied.All TPS modified bituminous binders were prepared on a laboratory scale.Dynamic shear rheometer(DSR) strain sweep test was made to measure the linear viscoelasticity areas of various bitumen binders at -20-70 ℃,then temperature sweep test and frequency sweep test were made in the linear viscoelasticity areas.Complex modulus master curves were drawn to analyze and compare various bitumen binders’ rheological properties.Based on the test results,the ideal percentage of TPS additive was brought forward.The results show that TPS modified bitumen binders have more excellent properties at high,medium and low temperatures compared with original bitumen.The dosages of TPS additive are vital to their properties.     

关于福辛普利钠相关杂质的分析

文章对欧洲药典(EP7.0)、美国药典(USP34)和中国国家标准收录的13种福辛普利钠相关杂质归纳总结,并对相关杂质的生成原因进行追溯和解析。     

全球包装机械行业聚焦中国

最近这些年沫，我国包装机械已经出现缓慢发展甚垒是停滞的现象，从整个行业的发展和市场需求分析，虽然包装机种类繁多，但无论是目前国内市场红火的火锅底料灌装机还是粉体包装机亦或是颗粒包装机等一系列机型，     

环球七O常见故障及处理二则

法国Goss公司生产的环球七O无轴机在我公司已使用几年了，今将使用中遇到的两例设备故障及处理情况总结一下，与同行共勉。     

无核密度仪在沥青路面压实度检测中的应用

介绍了无核密度仪的检测原理,论述了核子密度仪测试结果同现场取芯结果的对应性,并讨论了温度与压实度随碾压遍数的变化规律。     

要做好纸张的储存和保管工作

我厂作为报纸定点印刷企业,日印刷量很大,纸张(新闻纸)用量多,再加上近几年重型机、高速机的引进,对纸张的要求越来越高,使得纸张管理矛盾越来越突出,因此,做好纸张的管理工作是当务之急。 我觉得要做好纸张的储存和保管工作具体应从以下几个方面入手: