穿孔机顶杆小车冷却水装置

从设备组成、设计选型计算、新型顶杆冷却装置优点等方面,介绍了一种新型的顶头冷却水装置设计方案。该方案制造成本低、维护方便,解决了传统方案中拖链因长期高速运行而容易损坏、维护困难、成本高的问题。     

焙烧多功能机组电缆拖链装置结构改进

分析焙烧多功能机组电缆拖链损坏原因,对比新、旧拖链装置结构,介绍改进后电缆拖链装置的优点。     

长寿命钢制拖链在冶金设备上的应用

通过对长寿命钢制拖链的任务提出、制作方法及应用在冶金设备中的实例简要概述,论证了冶金设备中拖链的应用路径,将冶金设备中的备品之一拖链的使用寿命作为产品生产的目标,指出了如何通过提高拖链在设备中的使用效率,引入这一环保意识在备品备件的生产使用过程中。     

铝熔炼炉电磁搅拌装置辅助拖车的添加

介绍了电磁搅拌装置的构造及原理,及一拖三电磁搅拌装置因拖链较长遇到的一些问题。通过增加辅助拖车来支撑保护拖链,达到了企业安全生产使用的目的。     

80t脱锭吊顶杆油缸国产化改进研制

本文介绍了引进的80t脱较吊顶杆油缸国产化改进经验，说明该油缸原理．参数、损坏情况．研究、设计改进、制造和使用效果等。     

穿孔机后台新型顶杆脱出装置的设计及应用

顶杆脱出装置是穿孔机后台顶杆循环系统中的关键设备,它的功能是将顶杆从毛管中脱出。介绍一种新型顶杆脱出装置的设备组成、结构设计、驱动电机功率计算及工程应用。经理论分析和工程实践验证,该脱出装置具有效率高、结构强度好、操作灵活等特点,完全能够满足后台配备顶杆循环系统的快节奏、高产能穿孔机组的要求。     

铝熔炼电磁搅拌装置辅助拖车的设计

介绍电磁搅拌装置在铝合金熔炼过程中的应用,及一拖三电磁搅拌装置因拖链较长遇到的一些问题,通过采取增加辅助拖车的措施,来支撑保护拖链,解决问题,消除隐患,达到满足企业安全生产使用的目的.     

无缝钢管壁厚不均现象的浅析

针对穿孔后毛管壁厚不均匀的现象,分析出穿孔过程中的顶杆不稳定是造成毛管壁厚偏差的主要原因,进而对造成顶杆不稳定的因素进行分析。通过从减小顶杆压力、缩短顶杆支撑长度、增大顶杆界面、提高顶杆强度等方面入手,可提高穿孔过程的稳定性,进而提高毛管的壁厚精度。     

铝熔炼电磁搅拌装置辅助拖车的添加

介绍了电磁搅拌装置在铝合金熔炼过程中的应用,以及一拖三电磁搅拌装置因拖链较长遇到的问题,通过采取增加辅助拖车的措施来支撑保护拖链,满足企业安全生产的目的。     

一种降低管子磨损的专用拖链

正申请(专利)号:CN201420350097.4申请(专利权)人:南京梅山冶金发展有限公司;上海梅山钢铁股份有限公司发明(设计)人:蒋少平;黄学林摘要:本实用新型公开了一种降低管子磨损的专用拖链,包括拖链本体,在拖链本体上设置有半圆形的管夹,在所述的管夹内设置有滚珠槽,在所述的滚珠槽内安装有滚珠。本实用新型提供的     

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。     

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.     

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。     

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.     

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)