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叙述了在热态模拟条件下喷补料配方,喷补温度,残衬表面性状和喷补料水分含量等因素对喷补层与残衬界面接着强度的影响。 相似文献
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通过建立喷补料颗粒沿煤-氧火焰长度方向的温度模型,研究了喷距和粒度对喷补料颗粒受热升温的影响。试验结果表明,运用该模型能够较准确地选择火焰喷补距离,以及指导火焰喷补料的粒度组成配比。 相似文献
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通过对喷补料的骨料及粒度组成、喷补料增塑剂、化学结合剂、促进剂等试验,选择了适宜加入量,研制了半干法喷补料,并在第一炼钢厂使用。 相似文献
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本文简介了以镁砂、合成镁钙砂为主要原料的钢包半干法喷补料的试制方法与步骤,分析了影响喷补料附着率的主要因素及其解决办法。试验表明,此喷补料的应用可显著提高钢包使用寿命、保证钢包正常周转、降低钢包耐火材料消耗。 相似文献
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本文研究了大连摩根喷补料BFS和MS3与华东冶金学院研制的高炉喷补料HGS01和HGS02的接着强度的耐磨性。结果表明,接着强度与耐磨性主要取决于喷补料本身的性质,而对某一既定的喷补料而言,受补面的性状对接着强度有重要影响。 相似文献
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在安钢10t电炉炉体上采用了以尖晶石(MA)为结合物的镁质喷补料,与普通镁质喷补料相比,具有较高的耐火度、荷重变形温度、热震稳定性和较强的抗渣侵蚀性。现炉体寿命达85炉,比原来人工投补法增加了9炉。 相似文献
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高炉喷补料中Fe2O3的含量对其抗CO侵蚀的影响 总被引:1,自引:0,他引:1
研究了高炉喷补料中Fe2O3的含量对其抗CO侵蚀的影响,研究表明,随喷补料中Fe2O3含量增加,其抗CO侵蚀能力急剧降低,因此减少喷补料中Fe2O3的含量有利于提高其抗CO侵蚀能力,延长炉衬寿命,文中还采用了耐压强度来判定高炉喷补料抗CO侵蚀的新方法。 相似文献
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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
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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
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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
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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
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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