Steel Temperature Compensating Model With Multi-Factor Coupling Based on Ladle Thermal State

来源 :Journal of Iron and Steel Research(International) | 被引量 : 0次 | 上传用户:jasonzheng1978
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Combined with the parameters of the production process of a steel factory, numerical simulations for a new ladle from preheating to turnover are conducted using the finite element analysis system software (ANSYS). The measured data proved that the simulated results are reliable. The effects of preheating time, thermal cycling times, and empty package time on steel temperature are calculated, an ideal preheating time is provided, besides, based on the analysis of a single factor and use the nonlinear analysis method, a steel temperature compensating model with diversified coupling factors is proposed, with the largest error of the present coupling model at 1.462 ℃, and the errors between actual and target steel temperature in tundish after the model is applied to practical production are basically controlled within ±6 ℃, which can meet the accuracy of the manufacturer and has a practical guiding significance for the production in steelmaking workshops. Combined with the parameters of the production process of a steel factory, numerical simulations for a new ladle from preheating to turnover are conducted using the finite element analysis system software (ANSYS). The measured data proved that the simulated results are reliable. The effects of preheating time, thermal cycling times, and empty package time on steel temperature are provided, besides, based on the analysis of a single factor and use the nonlinear analysis method, a steel temperature compensating model with diversified coupling factors is proposed, with the largest error of the present coupling model at 1.462 ° C, and the errors between actual and target steel temperature in tundish after the model is applied to practical production are basically controlled within ± 6 ° C, which can meet the accuracy of the manufacturer and has a practical guiding significance for the production in steelmaking workshops.
其他文献
“五更”是一位知晓五行之道且在仕的年耆德茂的长老,“五更”的身份地位是卿大夫;设置“五更”的目的是陈明悌顺之道,教化天下;“五更”与“三老”分别代表了传统的悌、孝伦理,是帝王宣教孝悌之道的行为象征,是忠事君主的伦理依据;“五更”的选拔标准与要求比较高,其社会职责是辅助“三老”教学孝悌之道,地位低于“三老”;东汉后三老五更制时兴时废,“五更”的社会地位有所变化,至唐代享受的礼遇最高,此后稍降,至明清时“五更”逐渐淡出了官方视野。
技法指津随着新课标的实施和课程改革的不断深入,高考语文客观性试题逐渐由主观题代替,课内向课外延伸的趋势也明显增强,文言文翻译题也随之发生了根本性的变革。前些年高考
A reliable seismic-resistant design of structures is achieved in accordance with the seismic design codes by designing structures under seven or more pairs of e
最新发布的一项市场调查称,从现在起到2016年,美国对塑料薄膜的需求量每年将增长1.8%,fU2016年将达到159亿磅(约700万t)。
脊髓梗死比较罕见,它可由多种病因引起。本文分析了16例脊髓梗死患者的磁共振成像(MRI)表现,并评估了缺血性脊髓损害的类型、局部解剖与临床症状间的相互关系。 方法 1995年
患者女,43岁。2年前因“慢性胆囊炎”、“胆总管囊肿”行胆囊切除术;胆总管囊肿空肠吻合术。近4月来,反复出现上腹部隐痛伴黄疸,抗炎治疗后好转。3天前再次出现上腹隐痛伴黄疸而入我院
1985~1997年,我们采用直肠上提骶骨岬固定、盆底腹膜直肠下端成角固定治疗直肠脱垂52例,效果满意。现报告如下。一般资料:本组男45例,女7例;年龄16~68岁,平均26岁;病史6个月~9年。均为完全性直肠脱垂,脱出长度
中学政治教师的职业素养是其职业生涯的核心竞争力。在建设文化强国、加强社会主义核心价值体系建设的宏观背景下,通过关注中学政治教师在职业意识、职业热情、职业技能等方
中国素有“礼仪之邦”之称,孔子强调:“不学礼,无以立。”《荀子》上说:“人无礼则不生,事无礼则不成,国家无礼则不宁。”孔子教给弟子的“六经”中,礼占有重要地位,因此古人说话、写信也讲究礼节,注重遣词在称谓方面很讲究,主要有尊称和谦称。有些表示称呼的词语至今仍值得我们借鉴。  一、尊称也叫敬称,是对谈话对方表示尊敬的称呼。今天我们尊称对方为“您”,古代直接用敬称常用词的有:“子”、“汝”、“尔”、“
目的:探讨老龄大鼠局灶性脑缺血后CyclinD1表达与小胶质细胞活化、神经元凋亡之间的内在关系。方法:建立光化学诱导的老龄大鼠局灶性脑缺血模型,利用原位分子杂交、Isolectin