焦烧石灰窑转产轻烧白云石的探讨

通过对老式焦烧石灰窑转产轻烧白云石的探索，研究制定了焦烧窑转产轻烧白云石对窑炉的改造方案和生产工艺，探讨了轻烧白云石在转炉中溅渣护炉的使用效果。结果表明：焦烧石灰窑转产轻烧白云石可提高产量和质量；轻烧白云石比焦烧石灰生产工艺的煅烧温度低100℃左右；轻烧白云石在溅渣护炉工艺中使用效果好，完全可替代轻烧镁球。     

转炉镁质补炉砖的研制开发

本文简要论述了新型镁质补炉砖研制开发过程与定型生产及使用情况。该补炉料性能及使用效果均优于白云石质补炉材料，更适应冶炼生产的高强度、快节奏、保安全的需要。     

莱钢采用溅渣护炉工艺转炉平均炉龄23998炉

莱钢自2006年1—4月对4座转炉相继停炉年修，1，4号转炉炉龄分别达到了26747炉、21593炉、24623炉、23028炉，平均炉龄为23998炉，平均吨钢耐材消耗仅为0．381kg。莱钢于2005年4月使用轻烧镁块代替轻烧白云石造渣，     

南钢15吨转炉出钢口改造

1 前言南钢15吨氧气顶吹转炉采用镁碳砖和白云石砖综合砌炉;出钢口由两块合成镁大砖砌筑,为了提高出钢口的一次性寿命,在出钢口大砖中预埋了镁碳质套管。转炉出钢口是转炉炉衬中的关键部分,一个炉役中有近2万吨的钢水经过出钢口流入钢包,因此,出钢口好坏直接关系到炼钢     

低成本、高寿命镁碳质补炉砖技术研究与应用

充分利用现有设备，研究原料及配方，形成了一套生产低成本、高寿命镁碳质补炉砖工艺。     

摇炉炉衬侵蚀过程分析及镁碳砖在摇炉上的应用

论述了中碳锰铁工艺线中的摇炉炉衬侵蚀过程和镁碳砖在摇炉上的应用效果。使用镁碳砖代替镁砖摇炉衬后，炉衬寿命由８０－１２０炉次提高到３４５炉次，炉衬费用降低１００－２３０元／炉，并提高了摇炉设备的作业率和碳锰铁生产的技术经济指标。     

对AOD炉和铬转炉炉渣冶炼行为的试验和计算研究

铬转炉和AOD炉通过氧化钢水中的硅和碳来生产不锈钢。为了延长铬转炉镁碳炉衬和AOD炉白云石炉衬的使用寿命，就必须减少炉子某些关键部位耐火材料的侵蚀（特别是铬转炉中的风口区域和AOD炉中的风口、耳轴区域），或在炉役期间采取措施保护这些部位。渣保护就是延长转炉炉衬寿命的一个选择方案。渣保护是在出钢后把转炉渣留在炉中，并使其在转炉炉衬的关键部位凝固的方法。在本研究中，铬转炉和AOD炉的渣保护与常用的碱性氧气转炉（BOF）的溅渣护炉不同，不采用溅渣，而是通过前后摇炉使熔渣涂敷在炉壁上的。     

镁钙碳大砖在转炉炉衬中的开发应用

介绍了转炉镁钙碳大砖炉衬的特点及其相应的砌筑工艺，与普通的镁碳砖相比，使用镁钙碳大砖可以极大地减轻工人的劳动强度，缩短筑炉时间，保证炉役后期炉膛的规则性，有利于提高转炉炉龄，提高炉子作业率，降低生产成本。     

镁碳砖在300吨氧气顶吹转炉上的应用

介绍了宝钢300t氧气顶吹转炉,为进一步均衡炉衬,延长炉龄,分别在熔损最严重部位使用镁碳砖代替镁白云石砖的实绩。通过6个炉役的试用,初步看出镁碳砖的优越性;在耳轴部位,镁碳砖的平均熔损速率较镁白云石砖有所减小,由平均0.79mm/炉减少至0.53mm/炉;含镁碳砖的炉衬平均炉龄比单一镁白云石砖炉衬提高约10%,最高炉龄达1223炉。文中还对今后镁碳砖的使用提出了建设性意见。     

四种材质的炉衬在包钢转炉上使用结果

一、序言转炉炉令是炼钢技术,炉衬材质和生产管理水平的综合指标,提高转炉炉令对发展钢铁工业具有重大意义。炉衬材质是提高炉令的基础,冶炼操作是提高炉令的关键。包钢转炉炉令一直处于后进,为了寻找适应包钢转炉冶炼的炉衬材质,我们进行了本项工作。本报告从工艺岩石学角度叙述了高镁白云石,普通焦油白云石,二步煅烧焦油白云石,焦油镁砖四种炉衬在包钢转炉上使用后残砖的矿物组成和显微结构,分析了不同材质损毁过程的特点。就使用过的四种材质炉村相比较,焦油结合高镁白云石炉衬较好。     

质量科学管理及其应用

质量科学是质量和质量管理在实践中按一门科学固有的哲理、体系和方法进行运作和应用而形成的科学,在质量管理中具有重要作用,可使产品质量变异成为最小.质量科学应用在炼焦生产中,可预测控制焦炭灰分.同时指出,质量科学是企业现代化质量管理的需要,尤其与计算机技术的结合应用,更能发挥其巨大作用.     

The Effect of Correlation between Price and Quality on Consumer Choice

According to the price-expectancy model of consumer choice, consumers evaluate products by comparing the actual price with a reference or expected price determined from (a) product's quality and (b) the price-quality correlation of the product category. Choices between hypothetical products of beer are used to test the model against a model without a reference price. Consistent with the price-expectancy model, product preferences varied with the subjective correlation between price and quality: the relative preference for higher priced/higher quality products over lower priced/lower quality products increased as the subjective correlation increased. For some pairs, the correlation between price and quality created a preference reversal across contexts: the higher priced/higher quality product was chosen over the lower priced/lower quality product in the higher correlational context, but the lower priced/lower quality product was chosen over the higher priced/higher quality product in the lower correlational context. An additional study provided evidence that the price-quality correlation affects reference price, rather than reference quality, formation. Copyright 1998 Academic Press.     

Proton MAS NMR spectra at high magnetic fields and high spinning frequencies: spectral simulations using floquet theory

We examined the relationship quality of 55 (27 girls) 9-year-old children with their mothers, teachers, and friends as rated by teachers and by the children themselves. The goal of this longitudinal study was to examine stability and continuity in the quality of children's relationships between infancy and 9 years of age. At age 9, children's perception of their relationships with their teachers was associated with their current teachers' ratings of their relationships with the children. Children's perceptions of their relationships with their mothers were consistent with earlier ratings of attachment security. Children's perceptions of their relationships with teachers were predicted by the quality of their attachment relationships with their first teachers. Children's perceptions of their friendship quality was predicted by preschool teacher ratings of friendship quality and the quality of their attachment relationships with their first teachers.     

钢铁产品的质量控制

阐述了钢铁产品质量控制的内函。根据钢铁产品的质量环 ,对其产品质量形成的主要环节 ,概述了质量控制的要点 ,即控制原则和欲强化或有效地进行质量控制 ,应采用的方法、途径。强调质量控制是质量管理中永无休止的活动 ,随着产品的更新 ,顾客需求的增长 ,质量控制的手段 ,方法将随着提高     

Quality assurance and standardized measures--a critical discussion

The debate about quality and quality assurance has a long tradition in the market economy. New in the Federal Republic of Germany, however, is the debate about "quality" in the human services sector: in medical and nursing care, in hospitals and the community, in the health service. This discussion presents practising professionals, politicians and scientists with a number of unsolved problems. This is especially so in defining quality but also in developing, implementing and evaluating appropriate instruments of quality assurance. Quality is far more than what is intended by legislation-economy, productivity and competition- and often conflicts with these expectations. As a consequence, the process of discussion about defining quality turns out to be vague and contradictory rather than systematic, especially since quality cannot be seen as a static component but must be explored as a dynamic element. It is high time to start a critical debate about the concept of quality and current methods of quality assurance.     

烧结过程决策支持系统的设计与实现

针对某大型钢铁企业烧结生产过程的质量管理问题,提出一种基于控制图分析的烧结过程决策支持系统设计方案.首先,应用主成分分析、灰色关联分析方法,对烧结过程信息进行提取,确定影响质量的主要参数.然后,对烧结矿质量数据进行控制图分析,得到质量异常信息,并分析异常原因,为指导生产提供判断依据.实际运行结果表明该系统能够帮助决策者指导生产调整,提高烧结矿质量.     

对我公司改进质量管理的思考

从提高质量管理水平的重要性入手 ,剖析了我公司在质量管理方面取得的成绩和存在的不足 ,最后从树立科学的质量管理理念、深化TQM、推广应用现代质量管理科学方法和质量信息化建设四个方面对我公司改进质量管理展开了思考     

A questionnaire suitable for general practice for detection of the health status and quality of life of patients with hemato-oncologic diseases: psychometric properties. The Study G "Quality of Life" of the International Society for Chemo- and Immunotherapy (I.G.C.I.)

In the evaluation of therapeutic measures it is important to consider the consequences of the proposed treatment on the subjective quality of health and the subjective quality of life. Since no adequate instrument existed to provide such assessments, a short, theoretically based questionnaire was developed and psychometrically tested. The construction phase was based on data of 104 adults with haemato-oncological diseases, leading to the design of a questionnaire which was tested using data of a further 292 patients. The validity of the "questionnaire for attitudes towards quality of health and quality of life" was assessed by comparing it with physicians' ratings and by correlation with the results of an extensive questionnaire. The reliability was satisfactory; the questionnaire met with high acceptance by patients, physicians and health care personnel. It complies with the requirements of clinical trials where the objective is to measure quality of health and quality of life.     

The quality audit in a blood transfusion center

A quality audit is a systematic and independent examination used to determine whether quality activities and related results comply with planned arrangements, and whether these arrangements are implemented effectively and are suitable to achieve objectives. It typically applies to, but is not limited to, a quality system or elements thereof, to processes, products or services. Such audits are often called "quality system audit", "process quality audit", "product quality audit" or "service quality audit". Confidence is necessary between the quality auditor and auditees. In blood transfusion, the audit is a tool for improvement and risk management of processes, products or services.