改造轧钢机胶木轴瓦

胶木轴瓦目前还算是一种高耐磨,低成本,原料来源丰富的轧钢机轴瓦。一九五三年我们国家才开始在天津钢厂、鞍钢等冶金企业里试用胶木轴瓦代替合金轴瓦。胶木轴瓦可以用水作为润滑冷却剂,节约大量润滑油,寿命比合金瓦高10倍左右,因而大大提高了轧钢机的有效作业率。胶木瓦的磨擦系数较合金瓦小,轧机耗能量可降低15-20％等等。胶木瓦表现出许多方面的优越性,使用效果良好,因而多年来已在全国大力推广,普遍应用。1.问题的提出进入八十年代以来,由于四化建设的需要,节约能源,降低消耗,已成为全国各行     

不锈热轧厂万能轧机主电机轴瓦修复

不锈热轧厂万能轧机主电机轴瓦瓦背和瓦座不光滑有毛刺、深槽,经常发生研瓦事故,影响生产和设备的安全稳定运行。利用新材料和工艺对轴瓦进行修复,使球形轴瓦恢复自动调心功能,保证设备稳定安全地运行。     

4300kw电机轴瓦振动分析及消除措施

为解决4300kW电机轴瓦振动问题．除采取一般性技术处理措施外，主要调整了电机转子、定子铁芯的几何中心线．找正了瓦座的同心度．还找准了瓦座的水平．使轴瓦推动幅值降至0．5mm以下，达到了预定效果。     

φ650轧钢机2800kW主传动电机轴瓦事故的剖析

本文阐述了抚钢φ650轧钢机2800kW主传动电机轴瓦事故，全面分析其原因，重点论述了单向磁拉力对电机轴瓦产生过热、烧瓦事故的影响，并介绍了采取的技术措施及其效果。     

三联箱高效换瓦法

针对粗轧机三联箱轴瓦更换时劳动强度高、检修效率低、更换时间长等问题,对三联箱轴瓦的更换方法进行合理的优化改进,提出了"三联箱高效换瓦法",取得了良好的效果。     

煤气鼓风机系统轴瓦再生的实践及应用

由于煤气介质的特殊性，特别是运行转炉煤气的鼓风机轴瓦的短时间失效，使轴瓦消耗很大。针对这一实际，结合设备检修情况，尝试将旧瓦重新浇注成新瓦，在煤气鼓风机上运行效果良好．经济价值凸现。     

轧机机列主电机轴瓦润滑系统优化选择

针对轧机主电机轴瓦过热问题，本文介绍了一种简单实用的润滑，冷却方法，具有一定的推广价值。     

关于磨床砂轮架主轴刮瓦技术之见

通过现场观察与调查,提出磨床砂轮架主轴瓦技术的标准、操作程序及瓦质量的判断。     

DH80-7空压机轴瓦改造

通过对DH80-7空压机现状及椭圆瓦、可倾瓦的特点进行分析,得出空压机一至四级轴瓦结构改进的可行性与必要性.予以实施后,使空压机稳定性显著提高,确保了空压机安全和长周期运行,产生了巨大的经济效益和社会效益.     

水泥立磨电机膜片联轴器损坏故障分析

水泥立磨电机因振动及温度过高跳停,检查发现膜片联轴器散状分裂,电机轴瓦的侧面铜环瓦损坏,轴瓦合金熔化破坏,分析膜片联轴器及轴瓦损坏的原因,并对更换膜片联轴器、关节轴承的检修过程中的问题分析,总结磨机电机及联轴器维修经验。     

转炉炉壳热应力分析

根据实际转炉建立实体模型。以有限元为手段,考虑了炉衬和炉壳材料的物性参数随温度变化的特点和炉衬与炉壳之间膨胀间隙,计算了转炉炉壳在温度载荷和炉衬膨胀压力同时作用下的热应力。所得结果可为转炉炉壳设计提供依据。     

焦炭热性能指标意义浅析

通过对焦炭在高炉内的历程及其变化规律的剖析,阐述焦炭热性能指标的意义,形象地把焦炭在高炉内的损耗分为三部分(M1,M2,M3)。指出M2对焦比及焦炭价格有一定的指导作用。     

Results of treatment of cancer of the cardia

Cancer of the cardia is traditionally discussed with cardiac cancer of the lower portion of the esophagus and upper gastric cancer invading the esophagus, and the specific characteristics of cancer of the cardia have never been clearly defined. We reviewed the outcome of 172 patients with adenocarcinoma of the cardia who had undergone radical surgery between 1949 and 1994 in the Division of Gastrointestinal Surgery of the Cancer Institute Hospital. The centers of the tumors were located within 2 cm above and below the boundary between the esophagus and the stomach, and their longitudinal diameter was less than 8 cm. We divided the patients into an early period (1949-1979; n = 79) and a late period (1980-1994; n = 93), and focused on the historical transition. There were no differences in patient gender or histology between the two periods. However, the late period was associated with fewer cases of esophageal invasion and shorter longitudinal diameter, as the age of the population advanced. The number of advanced cancers such as the localized and infiltrative type had decreased, and early cancer and early clinical stage had become more common, but despite the fact that the number of early cancers had increased, extended dissection, such as thoracic and paraaortic lymph node dissection, was performed more frequently. By clinical stage, the long-term outcome markedly improved in Stage I patient in the late period, and tended to improve in Stage II and III patients. This appears to have been attributable to the prevention of micrometastasis by extended dissection, although the number of early cancers is another major potential cause. There were no differences in the outcome of Stage IV patients between the two periods, and further advances in multimodality therapy must be awaited. The range of resection is basically proximal gastrectomy, and if there are adequate indications, the prognosis is favorable. In view of the status of lymphatic flow and lymph node metastasis, and long-term results, lateroaortic lymph node dissection is important. Since the number of early cancer patients has been increasing, if intraabdominal recurrence is prevented, intrathoracic lymph node dissection will contribute greatly to the outcome of such patients.     

The effect of amount of possession of the trait of hostility on accuracy of perception of hostility in others.

Some theories of personality hold that an individual's perception of others is influenced by his own personality characteristics; more specifically, that a trait of low social value will be projected more into others, and that insight into the possession of these characteristics reduces this distortion. These 2 hypotheses were tested by having a group of college students rate each other (including themselves) on degree of friendliness or hostility. Agreement with group rating about self yielded the insight score. In general, the hypotheses were supported; the "friendly" Ss were most accurate in their perception of others, and insight was positively associated with accurate perception. From Psyc Abstracts 36:04:4HL16M. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Effect of antibiotics of chemotaxis of human leukocytes

The effect of 20 different antibiotics on chemotaxis by human neutrophils was studied. Human leukocytes incubated with chloramphenicol, rifampin, sodium fusidate, and tetracyclines in vitro showed markedly depressed migration. The mechanisms by which these antibiotics affect leukotaxis are discussed.     

Quality of life of relatives of mental patients

Usage of quality of life of psychiatric patients' relatives as the parameter of estimation of the quality of psychiatric care is considered. By means of standard questionnaire elaborated by the authors as well as by means of both individual and group conversations the quality of life was analyzed in 40 relatives which lived together with psychiatric patients. Different spheres of their life and difficulties (financial, social-psychologic, production) were examined in families with such patients. The defects of psychiatric care that had direct influence on the quality of life of the psychiatric patients' relatives are outlined.