期刊文献+
共找到7篇文章
< 1 >
每页显示 20 50 100
静压造型线扎吹气眼孔作业的自动化改进方案
1
作者 高狄 王超 +1 位作者 曹健 江嘉莉 《现代铸铁》 CAS 2024年第2期60-64,共5页
为解决静压造型线上型人工扎吹气眼孔作业工作量大、效率低且存在人为因素导致的作业缺陷等问题,提出了自动化改进方案。该方案包括扎吹机器人替代人工操作、视觉系统检测气眼孔并引导机器人作业、定位系统确保砂箱准确定位、电气控制... 为解决静压造型线上型人工扎吹气眼孔作业工作量大、效率低且存在人为因素导致的作业缺陷等问题,提出了自动化改进方案。该方案包括扎吹机器人替代人工操作、视觉系统检测气眼孔并引导机器人作业、定位系统确保砂箱准确定位、电气控制系统协调整个系统作业,并引入安防系统保障维护人员安全。在国内某知名铸造企业造型线上的测试结果证明:自动化系统显著提高了生产的规范性和生产效率,满足生产节拍85箱/h的工艺要求,同时有效规避了人为因素带来的作业缺陷。 展开更多
关键词 静压造型线 气眼 机器人 自动化作业
下载PDF
缸体类铸造砂型扎气眼的高效设备
2
作者 王大明 钱收云 《现代零部件》 2012年第7期56-58,共3页
江准铸造厂目前所使用的KW砂型铸造生产线是从德国引进的一条现代化自动生产线,整条生产线从主造型、铣浇铸口、扎制气眼、下模芯及上下合模,直至最终浇铸基本上实现生产自动化。该生产线是根据江准铸造厂原生产状况及生产能力规划设... 江准铸造厂目前所使用的KW砂型铸造生产线是从德国引进的一条现代化自动生产线,整条生产线从主造型、铣浇铸口、扎制气眼、下模芯及上下合模,直至最终浇铸基本上实现生产自动化。该生产线是根据江准铸造厂原生产状况及生产能力规划设计的,承担着如柴油发动机缸体、汽油发动机缸体、制动鼓及前轮毂等不同类型不同规格的产品灰铁铸造生产任务。 展开更多
关键词 缸体 灰铁铸造 砂型 气眼
下载PDF
阈值设定法对钢包眼面积的快速影像分析
3
作者 韩灵生 徐晓东 GEOFF Brooks 《冶金分析》 CAS CSCD 北大核心 2014年第9期8-13,共6页
在钢的二次精炼过程中,通过惰性气体(Ar)底吹法搅拌钢包里的钢水是一种常规手段,其目的是确保钢液的均匀性,并促进炉渣和金属相之间的化学反应。钢包眼区(Ladle eye)的面积大小对于空气(O2,N2)的吸收,以及钢渣的形成有着重要的影响,而... 在钢的二次精炼过程中,通过惰性气体(Ar)底吹法搅拌钢包里的钢水是一种常规手段,其目的是确保钢液的均匀性,并促进炉渣和金属相之间的化学反应。钢包眼区(Ladle eye)的面积大小对于空气(O2,N2)的吸收,以及钢渣的形成有着重要的影响,而钢渣的成分及形态决定了钢液及产品的质量。对钢包眼区域的在线分析有助于帮助操作工人掌握添加各种造渣剂的种类和数量以及对通气量(压力或流量)的控制。实验阐述了一种基于钢包顶部数码影像的快速分析技术,通过冷态模型实验和工业钢炉的实际测试,有效地计算出钢包眼区的面积,且计算速度快于0.1s/frame,能够基本满足实时测量的要求。 展开更多
关键词 钢包眼 气眼 数码影像处理 阈值设定法
下载PDF
关于轮胎胎侧缺胶问题探讨与分析
4
作者 张昌林 朱鲁飞 张伟 《橡塑技术与装备》 CAS 2017年第7期49-51,共3页
轮胎缺胶,尤其是轮胎胎侧部位的缺胶是轮胎生产过程中最常见的一种外观病象,本文主要从轮胎生产过程控制方面分析与探讨了引起轮胎胎侧缺胶的原因与控制措施。
关键词 缺胶 胎侧 气眼
下载PDF
Study of the Influence of Critical Radius on the Cloud Drops Formation in the Seeding Operations
5
作者 Rauil Cesar Perez 《Journal of Environmental Science and Engineering(A)》 2012年第5期616-619,共4页
In the seeding operations in order to mitigate the climatic changes or to intervene beneficently on the precipitations process, it is very important to know the roll of the critical radius size of the cloud drops form... In the seeding operations in order to mitigate the climatic changes or to intervene beneficently on the precipitations process, it is very important to know the roll of the critical radius size of the cloud drops formation and its posterior evolution. In the seeding operations programs, the fundament is to determinate the critical radius in order to obtain efficient results. So, it must consider (a) the critical radius size necessary in order to get the better results; (b) the atmospheric conditions that determine it. In order to get a methodology to calculate the critical radius in each atmospheric condition, the present work has been developed. And with them, it can estimate the nuclei size necessary in order to assure good seeding. The authors had obtained approximate values that were good enough to the goals. 展开更多
关键词 Critical radius precipitation modification cloud seeding.
下载PDF
Metabolic characteristics of Qi-Yin deficiency and heat stagnation in liver meridian patterns of dry eye based on tear metabolomics
6
作者 XIE Mingxia CAI Zengyun +4 位作者 LI Junyao TAN Jiaren LIU Pei YU Yanlan JIAO Luojia 《Digital Chinese Medicine》 CAS 2024年第3期274-283,共10页
Objective To explore the metabolic differences between dry eye patients with Qi-Yin defi-ciency and heat stagnation in liver meridian patterns,and clarify their metabolic characteris-tics.Methods Patients with dry eye... Objective To explore the metabolic differences between dry eye patients with Qi-Yin defi-ciency and heat stagnation in liver meridian patterns,and clarify their metabolic characteris-tics.Methods Patients with dry eye who were treated in the Ophthalmology Ward and Outpatient Department of the First Hospital of Hunan University of Chinese Medicine from October 1,2020,to October 30,2021 were enrolled as the research participants in the study.They were assigned to two groups based on traditional Chinese medicine(TCM)syndrome types:heat stagnation in liver meridian pattern group and Qi-Yin deficiency pattern group.Healthy vol-unteers who underwent health check-ups in the Health Management Department were in-cluded as healthy group following the random number table method.The tears of the pa-tients and the healthy volunteer participants were tested by high-performance liquid chro-matography-mass spectrometry(LC-MS).The differential metabolites were screened out by multivariate statistical analysis,and Kyoto Encyclopedia of Genes and Genomes(KEGG)pathway enrichment was performed on the differential metabolites.Finally,the association analysis of differential proteins and metabolites was conducted to verify and supplement the metabolites.Results A total of 32 dry eye patients were enrolled,including 16 cases with heat stagnation in liver meridian pattern and 16 cases with Qi-Yin deficiency pattern.Fourteen healthy volun-teers were included as healthy group.There were no significant differences in baseline char-acteristics among the three groups(P>0.05).A total of 412 biomarkers were determined in Qi-Yin deficiency pattern group,mainly including lipids,lipid-like molecules,organic acids and their derivatives,organic heterocyclic compounds,and nucleosides and their analogues.For heat stagnation in liver meridian pattern group,112 metabolites were determined,main-ly including organic acids and their derivatives,lipids,and lipid-like molecules.The KEGG enrichment results of pathways and the relative content analysis of differential markers de-monstrate that purine metabolism and caffeine metabolism pathways are common metabol-ic characteristics of all dry eyes.Among them,deoxyinosine monophosphate(dIMP)and 2-(formamido)-N1-(5-phospha-D-ribosyl)acetamidine can serve as their biomarkers.The main characteristics of Qi-Yin deficiency syndrome pattern were the significant enhancement of metabolic pathways such as lysine degradation,ovarian steroidogenesis,cholesterol metabolism,pyrimidine metabolism,and bile secretion(P<0.05).Dry eye associated with the heat stagnation in liver meridian pattern is mainly characterized by inhibition of the valine,leucine,and isoleucine biosynthesis pathways(P<0.05).Conclusion Metabolomics can be used as an effective basis for TCM syndrome classification.Different patterns of dry eye syndrome exhibit typical characteristics in the types and concen-trations of metabolites,which correspond to the syndrome classification in TCM.This study initially confirms the rationality of TCM syndrome classification and provides significant ref-erence for the mechanism of dry eye and drug development. 展开更多
关键词 Qi-Yin deficiency Heat stagnation in liver meridian Dry eye Tears Metabolomics
下载PDF
冰钓用竿论短长
7
作者 王啸 《钓鱼》 2003年第24期11-11,共1页
关键词 溶氧量 钓鱼 气眼 冰洞 安全 水库 裂缝 收获 鱼塘 水深
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部