共查询到20条相似文献,搜索用时 62 毫秒
1.
2.
本文针对初轧分厂原三号退火炉设备老化,炉子结构不合理,热效率低,不能适应当前生产的情况,对炉子进行了全面的分析,并详细讨论了改造方案及实施要点。改造后的退火炉具有升温速度快,炉温的均匀,能耗低,退火质量高等特点,并且实现了烧钢过程的自动化控制。 相似文献
3.
介绍了锡钢集团公司锻压分厂车底式热处理退火炉消烟除尘综合治理改造情况。包括烧嘴重新选型、配置,增设空气预热器及重油加热系统,并将下排烟改为地上排烟。改造的主要目的是消烟除尘,提高产品退火质量,提高炉子装备水平及节省燃油消耗。改造后运行结果基本达到了预定目标。 相似文献
4.
5.
6.
徐民杰 《冶金设备管理与维修》1996,(1):22-23
为解决炉体易接地问题,采用高质量的电瓷挂件、并对炉体结构加以改造,改造后炉体从未发生接地故障、减少了检修次数、节约了费用,提高了效率。 相似文献
7.
针对安钢60m×7.5m蓄热式退火炉设计不合理和生产中暴露出来的不足之处进行了一系列优化改造,取得了较好的效果。 相似文献
8.
9.
作者根据近年来国内外车底式退火炉的发展趋势,把凌源钢铁公司冷轧带钢厂六座小型手工烧煤单车底式退火炉,改造成为一座烧热脏发生炉煤气的两端进出料的双车底式退火炉,本文为该炉改造的技术总结,既包括了设计方案的选择、主要技术改造措施也包括了近一年的生产效果的分析。生产实践表明,炉子改造是成功的,表现在提高了产品的产量和质量,降低了消耗等方面。 相似文献
10.
11.
12.
13.
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。 相似文献
14.
K Ohta M Nishi M Ueda S Ohyama T Matsubara T Takahashi T Nakajima 《Canadian Metallurgical Quarterly》1998,99(9):589-594
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. 相似文献
15.
16.
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) 相似文献
17.
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. 相似文献
18.
TA Solokhina LS Shevchenko IuV Se?ku EG Rytik LV Besedina TS Veshchugina 《Canadian Metallurgical Quarterly》1998,98(6):42-46
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. 相似文献
19.