氧化铝熟料窑检修技术的改进与实践

介绍在氧化铝熟料窑检修过程中，通过设备零部件结构改造、检修工艺改造和部件整体更换等方法，降低了检修作业难度，提高了检修效率，从而保证了检修质量，相应提高了熟料窑的运转率。     

钢铁企业设备检修作业安全管理分析

钢铁企业设备检修是非常规作业,安全风险高,事故易发。根据钢铁企业设备检修作业安全特点,提出了强化设备检修前、检修过程中、检修后3个过程的安全控制措施,列举出抓住能源介质停送、煤气检修、作业资质审查等8个重要环节的安全管理措施。     

检修单位多能工管理机制研究与实施

介绍了多能工管理机制在钢铁类企业检修单位中的研究推广。在检修单位中,各维修工种之间的边界越来越模糊,同一维修任务常需要多个工种间的相互配合,不同检修区域之间经常需要相互支援,原有的人员结构模式逐渐不能适应检修工作的要求,限制了检修效率的进一步提高。通过完善管理机制,充分发挥统一管理的优势,从技能鉴定培训、特殊作业工种管理、跨区域检修作业、导师带徒活动等方面着手,全面提高职工的理论、实践水平,逐渐解决了各检修单位检修力量相对不足的难题,职工的检修素质得到全面提升。     

系统理论在济钢中板厂计划检修中的应用

济钢中板厂计划检修中存在着停机时间利用不充分、停机检修类型各自独立等问题。为此,引入系统理论,将设备检修内容、停机时机与工艺换辊系统考虑、有机结合,利用公式计算制定出科学的检修周期。并统筹安排检修作业内容,从根本上解决了设备停机频繁、经济性差的问题。     

包钢7号高炉炉顶煤气封罩的快速检修

对包钢7号高炉炉顶煤气封罩的快速检修方法进行了阐述。7号高炉采取休风但不降料线的检修方式,合理利用负压式远距离排放的办法,降低封罩内部的煤气浓度和温度,实现了炉顶煤气封罩的安全、快速检修。合理的煤气处理方案,是保证炉顶煤气封罩快速检修顺利实施的重中之重。检修共用时5.6天,提前完成了封罩内部的所有焊缝挖补、钢圈更换、喷涂等相关作业。     

设备检修中的质量控制

从人、设备、材料与备件、方法等方面分析了影响设备检修质量的因素,并根据分析出的原因提出了在检修的计划和执行过程中的控制措施。     

按施工工序辨识危险源的方法与应用实例

危险源辨识和管控不到位是检修安全事故发生的根源,加强对危险检修施工过程中危险源辨识是冶金企业安全管理体系中一个重要环节。从检修施工工序危险源辨识、安全交底、高危项目作业管控等几方面分析,提出了检修安全管理的要点、处理对策和相应的措施。     

"协力检修"模式下设备维修费用管理与控制探析

冶金企业“协力检修”是“作业长制”管理办法下新的设备检修模式。针对实施“协力检修”中预算定额、工时定额等市场化动作体系的基础工作,以及技术基础管理工作方面提出了自己的见解。     

立式磨煤机减速机检修方案的优化

从施工工艺流程、进度、人员组织、工机具等方面介绍了立式磨煤机减速机检修实施过程的优化,特别是研究在狭小厂房空间进行吊装与平面施工布置,大大缩短了检修时间。     

关于南（京）钢180m^2烧结机的纠偏

南钢180 m2烧结机因基础不均匀沉降,引起烧结机跑偏,影响了正常生产.为解决此问题,该厂安排了一次为期8天的计划检修.本文介绍了这次检修中对于烧结机各部位(如直轨、滑轨、头尾部弯轨等)参数的检测、分析和调整.检修完成后,达到了烧结机运行的要求.     

Health maintenance organization penetration and the practice location choices of new physicians: a study of large metropolitan areas in the United States

OBJECTIVES: The rapid growth of health maintenance organizations is reshaping the practice opportunities available to physicians. The practice location decisions of new physicians provide a sensitive bellwether of these changes. This study assessed the effect of health maintenance organization penetration on practice location for physicians completing graduate medical education (GME). METHODS: Conditional logit regression analysis was used to determine the effect of health maintenance organization penetration on practice location, controlling for other market characteristics. Subjects were physicians who finished GME between 1989 and 1994 and who located in one of the 98 US metropolitan areas with more than 500,000 population. The outcome measure was the particular metropolitan area chosen by each new physician. RESULTS: Early in the study period, new generalists were significantly more likely to locate in metropolitan areas with high health maintenance organization penetration than in low penetration areas, whereas new specialists' practice location choices were not associated with health maintenance organization penetration. The likelihood of choosing a high penetration relative to a low penetration area declined with time, however, for both generalists and specialists. Consequently, by the end of the study period, health maintenance organization penetration had a weak but significant negative effect on practice location for generalists and a strong negative influence on practice location for specialists. CONCLUSIONS: New generalists who completed graduate medical education between 1989 and 1994 were more likely than new specialists to locate in market areas with high health maintenance organization penetration; however, the proportions of both generalists and specialists who chose high penetration areas decreased during the study period. This finding may reflect reduced practice opportunities in high penetration areas relative to low penetration areas as health maintenance organizations' systems for controlling utilization began to yield results. Alternatively, new physicians may have become more hesitant to accept available positions in high penetration areas.     

高压加热器内漏原因分析及防治措施

针对马钢热电总厂机组高压加热器钢管发生漏管现象,从高压加热器的内部结构、运行维护方面进行分析。通过设备优化,改善运行及检修工艺等一系列防范措施,以有效保证高加设备健康水平。     

蓄热式加热炉低维修成本实践

针对蓄热式加热炉存在的维修成本高问题,分析认为,主要原因是加热炉使用周期短,维修缺乏科学性等。济钢中板厂在生产实践中严格操作制度、热工制度,延长加热炉使用周期,制定合理的维修项目及方案,延长耐热滑块的使用寿命,以修代换、减少蓄热烧嘴耐火衬的更换,提高耐热滑块、耐火制品的修旧利用率,年节约维修费用300万元/台。     

Psychosocial work stressors in the development and maintenance of insomnia: A prospective study.

This study is aimed at examining whether psychosocial work stressors are related to the development and maintenance of insomnia. A prospective design was used with a baseline and a 1-year follow-up questionnaire (N = 1,530). The results showed that among individuals with no insomnia at baseline, high work demands increased the risk of developing insomnia 1 year later. Among participants with insomnia at baseline, high leader support decreased the risk of still reporting insomnia at follow-up. Finally, low influence over decisions and high work demands were related to the maintenance of insomnia. The results indicate that perceived work stressors are related to the development and maintenance of insomnia. This might have implications for how insomnia is conceptualized as it places work stressors in the model and for how interventions at different stages of insomnia are implemented. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

干熄焦装置延长年修周期探讨

通过包钢焦化厂干熄焦3次年修的经验以及维护经验,比照其他同行业单位,探讨通过改进操作和工艺及质量好的备件,延长年修周期存在一定的潜力可挖。     

汽车维修技术发展状况

介绍了我国汽车维修技术的发展现状 ,提出强化技术培训、加强信息交流、引进和培养高素质人才是促进汽车维修企业发展的关键。     

方坯连铸机冷床液压系统改造

在方坯连铸生产过程中,为步进式冷床动梁升降油缸提供压力油的同步马达故障率高、维修时间长、维修成本高,针对该问题进行了故障分析,提出了冷床液压系统改造方案。通过利用原有元件改变同步马达的供油位置,从而改善了同步马达的工作条件。该方案利用较少的改造成本提高了设备作业率,降低了生产成本,产生了较高的经济效益。     

SP牌坊开裂机理与维修策略

从物理力学、应力测试、有限元模拟三方面分析计算了SP牌坊的受力及应力情况，再通过对应力及裂纹断口的分析得出：高周疲劳是SP牌坊开裂的根本原因。以理论与现场实际相结合，研究出了SP牌坊开裂有效修补方案，通过该修补方案的实施，牌坊本体上的应力水平降低了40％，且对拍击振动也较不敏感，修补维修策略有效。     

涡街流量计在焦炉煤气计量中的应用

薛城焦化厂在外供煤气管道上安装插入式涡街流量计，经严格的参数设置，投入使用。与孔板流量计和罗茨流量计相比，在流速大于５ｍ／ｓ时时涡街流量计的准确度较高，并具有测量范围宽，安装、维修方便，清洗、维护费用低等特点。     

制氧机氧气管道冻裂事故分析及处理

空分行业属于高危险行业,虽然目前空分技术日趋成熟,空分设备的安全稳定性能较高,行业规范也逐渐完善,但是在日常生产操作和检修维护的过程中,稍有疏忽,监控不到位,也可能酿成大事故。因此,在生产操作和检修维护时,必须有周详的计划和应急预案,要严格遵守行业规范和作业流程;检修维护过程中,各工序之间要及时沟通。