METAL 2021 Conference Proeedings最新文献_第7页

Material Resource Use Efficiency in the Metallurgical Industry in the Context of Industry 4.0 工业4.0背景下冶金工业的材料资源利用效率

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4273

Dominika Hrubá, Andrea Samolejová, Martin Lampa

{"title":"Material Resource Use Efficiency in the Metallurgical Industry in the Context of Industry 4.0","authors":"Dominika Hrubá, Andrea Samolejová, Martin Lampa","doi":"10.37904/metal.2021.4273","DOIUrl":"https://doi.org/10.37904/metal.2021.4273","url":null,"abstract":"Maintaining competitiveness is becoming increasingly difficult, not only for industrial companies in an open economy. Especially in times of extended crisis, only those who respond most quickly to change will succeed. The implementation of tools for Industry 4.0 can reduce an employer’s dependence on human resources and thereby increase the flexibility of the company in responding to the needs of their customers. Experience with the use of Industry 4.0 technology has proved greater efficiency in material flows and therefore the use of available resources in all branches of industry. Industry 4.0 will create the conditions for the emergence of new business models and production processes. As a result, it will be possible to achieve a new level of mass production taking into account the individual wishes of customers. It will reduce the energy and raw material intensity of production, enable the maximum use of residual materials as input components into the subsequent production process and increase the efficiency of the use of non-recycled waste within the company. The paper presents selected elements of Industry 4.0 which could improve the efficiency of resource use in the metallurgical industry in the future. The aim of the article is to define recommendations based on not only positive but also negative experiences which can assist other companies in managing their material flows more efficiently as a result of application of the Industry 4.0 tools.","PeriodicalId":266696,"journal":{"name":"METAL 2021 Conference Proeedings","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129361745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The COrrosion resistance of zinc flake coatings 锌片涂层的耐蚀性

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4169

Marketa Mosnickova, Martina Němcová, M. Parakova

引用次数: 0

heat treatment effect on the structure formation of directionally solidified nickel alloy after slm 热处理对SLM后定向凝固镍合金组织形成的影响

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4235

E. Borisov, K. Starikov, A. Kim, V. Popovich, A. Popovich

引用次数: 1

A POSSIBILITY TO ESTIMATE THE IMPACT OF THE METALLURGICAL POLLUTANT NOISE SOURCES ON THE SURROUNDING ECOLOGICAL SYSTEMS 探讨了冶金污染噪声源对周边生态系统影响的可能性

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4071

D. Constantinescu, A. B. Cârlan

引用次数: 0

TWO-BODY ABRASION RESISTANCE OF HIGH-CARBON METASTABLE AUSTENITIC STEELS 高碳亚稳奥氏体钢的两体耐磨性

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4152

Jerome Ingber, S. Lippmann, M. Kunert

引用次数: 1

Evaluation of densities of waste materials in terms of their utilization in dense medium separations 从重介质分离利用的角度评价废物的密度

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4088

Filip Kovár, L. Bartoňová

引用次数: 1

Optimization of numerical simulations of gravity casting of ductile iron castings 球墨铸铁件重力铸造数值模拟的优化

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4094

K. Gryc, L. Socha, J. Svizelová, Tomáš Prášil, I. Hotovy, P. Čížek, J. Štefanek

引用次数: 1

Analysis oF Foreign Trade in Selected Manufacturing Industry Commodities 制造业商品的对外贸易分析

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4289

Petra Martinková, Kamila Janovská, Šárka Vilamová, Marek Šafránek, I. Vozňáková

{"title":"Analysis oF Foreign Trade in Selected Manufacturing Industry Commodities","authors":"Petra Martinková, Kamila Janovská, Šárka Vilamová, Marek Šafránek, I. Vozňáková","doi":"10.37904/metal.2021.4289","DOIUrl":"https://doi.org/10.37904/metal.2021.4289","url":null,"abstract":"Export oriented companies are extremely important for the Czech Republic as a highly open economy. These companies contribute to the generation of GDP and ensure that the current account on its balance of payments remains balanced. International trade is currently enjoying rapid growth because most trading subjects are aware of the importance of developing international activities which aim to sell products on foreign markets. This high sectoral concentration of Czech exporters along with a significant territorial export orientation primarily towards EU states means the Czech Republic is highly vulnerable to fluctuations and economic disturbances on foreign markets. The research investigates application of the gravity model of foreign trade on selected branches of the manufacturing industry and identifies significant factors which affect trade flow. The main aim of the research was to determine statistically significant export variables and generally confirm the suitability of using the gravity model equation as a tool for analysing trade flow and discovering trade potential. Part of the research involved compiling a basic modified export gravity model of foreign trade. This model allows identification of the statistically significant explanatory variables which fundamentally affect the Czech Republic’s exports. The paper presents this model and the outputs which relate to selected commodities produced by the manufacturing industry, such as basic metals, coke and oil products, chemical substances and preparations, etc.","PeriodicalId":266696,"journal":{"name":"METAL 2021 Conference Proeedings","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130701804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

INCREASING ENERGY EFFICIENCY OF ARC STEELMAKING FURNACE WITH ELECTROMAGNETIC STIRRING 电磁搅拌提高电弧炼钢炉的能效

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4080

S. Timoshenko, Aleksii Smirnov, E. Niemtsev

{"title":"INCREASING ENERGY EFFICIENCY OF ARC STEELMAKING FURNACE WITH ELECTROMAGNETIC STIRRING","authors":"S. Timoshenko, Aleksii Smirnov, E. Niemtsev","doi":"10.37904/metal.2021.4080","DOIUrl":"https://doi.org/10.37904/metal.2021.4080","url":null,"abstract":"Electric arc furnaces (EAF), especially of foundry class, operating with a long-term technological period, are characterized by a high level of energy loss. Intensification of heat and mass transfer in steelmaking bath by pneumatic or electromagnetic (EMS) stirring contributes to increase energy efficiency of the EAF. Influence of bath shape factor (ratio of diameter to depth), which determines heat loss due to melt surface radiation, as well as, EAF energy efficiency, on generated in liquid steel EMS power, hasn’t been sufficiently studied. Aim is to improve energy efficiency of the EAF, using EMS, through optimization the bath shape. Technique consists in comparative assessment of specific stirring power by numerical modeling of electro vortex flows in liquid steel at varying bath shape factor. Scientific novelty lays in development the concept of a \"deep\" bath in relation to EMS. Found that decrease in the bath shape factor from traditional 5 to 2.5 is characterized by growth of power, released during EMS, by 19-36 %, more pronounced with increased current force and reduced current frequency in the stator winding. Geometrical and operating parameters, at which the EMS power exceeds the capabilities of pneumatic stirring, have been determined. Practical value is in 6-9 % reduction of technological period under EMS conditions in a \"deep\" bath, which allows decrease of specific power consumption in melting cycle of foundry class EAF by 1.5-2 % and by 5-6 % for the EAF, operating as part of micro-metallurgical complex.","PeriodicalId":266696,"journal":{"name":"METAL 2021 Conference Proeedings","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117317968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The effect of plasma nitriding on cavitation erosion resistance of grAy cast iron with lamellar graphite, EN-GJL-200 等离子体氮化对层状石墨灰铸铁抗空化侵蚀性能的影响

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4137

E. Riemschneider, I. Bordeasu, I. Mitelea, I. Uțu, C. Crăciunescu

引用次数: 0