METAL 2021 Conference Proeedings最新文献_第10页

Improvement of the Model of an Innovative University-Type Cluster in a Case Example of Coordinated International Organizations Involved in the Metallurgical Industry 创新大学型集群模式的完善——以国际组织协同参与冶金工业为例

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4287

S. Shevtsova, Kamila Janovská, Daria Strapolova, V. Menshikov, Jakub Chlopecký

{"title":"Improvement of the Model of an Innovative University-Type Cluster in a Case Example of Coordinated International Organizations Involved in the Metallurgical Industry","authors":"S. Shevtsova, Kamila Janovská, Daria Strapolova, V. Menshikov, Jakub Chlopecký","doi":"10.37904/metal.2021.4287","DOIUrl":"https://doi.org/10.37904/metal.2021.4287","url":null,"abstract":"The need to innovate in a difficult economic situation has become particularly important in recent years and has attracted the attention of many industrial economists. The cooperation of companies in networks and clusters has been recognized as a catalyst for accelerating industrial transformation for the development of new regional competitive advantages, accelerating the creation of companies and jobs. A large number of modern studies on the grouping of industrial enterprises and universities strongly recommend the use of this type of business combination to gain a number of advantages: better access to suppliers, innovation and competitiveness. Recently, however, more and more researchers are conducting a deeper analysis of the effectiveness of cluster companies and identifying a number of shortcomings. This suggests that the current most common model of university-type unification, namely the innovation cluster, is underdeveloped and requires transformation. Based on the study of this area of knowledge, it was concluded that emphasis should be placed on developing model and organizational aspects of fusion, as this is an obstacle for many clusters. In this article, an architectural model of a new type of university industry type cluster was developed, which contains elements of system analysis and logistic modeling. The effectiveness of innovation will be assessed on the example of associations of universities and industry with the participation of Czech and Russian partners.","PeriodicalId":266696,"journal":{"name":"METAL 2021 Conference Proeedings","volume":"14 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":"133254787","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: 2

ENERGY-SAVING PAINTS AND VARNISHES AND COATINGS FOR AGRICULTURAL MACHINERY 农业机械用节能油漆、清漆和涂料

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4165

V. Boldyrev, V. Men’Shikov, A. Savina, N. Bogatov, F. Il’Darkhanova, Anastasiya Razvodova

引用次数: 0

PHOSPHATING OF STEEL IN LOW-TEMPERATURE SOLUTION 钢在低温溶液中的磷化

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4177

Grigory Studenekin, D. Mazurova, A. Abrashov, N. Grigoryan, T. Vagramyan

{"title":"PHOSPHATING OF STEEL IN LOW-TEMPERATURE SOLUTION","authors":"Grigory Studenekin, D. Mazurova, A. Abrashov, N. Grigoryan, T. Vagramyan","doi":"10.37904/metal.2021.4177","DOIUrl":"https://doi.org/10.37904/metal.2021.4177","url":null,"abstract":"At present, the research in the field of energy and resource-saving phosphating technologies is being continued, including the processes of applying adhesive and anticorrosive phosphate layers. The phosphating used in the industry is energy-intensive due to the high operating temperatures of the processes, which is necessary to obtain high-quality coatings in a technologically acceptable time. In addition, traditional zinc phosphate solution phosphating processes operating at moderate to low operating temperatures typically use sodium nitrite salts as an accelerating agent. In the course of the studies, we have found that the introduction of an ecologically safe nitrogen-containing accelerator into the phosphating electrolyte makes it possible to reduce the temperature of the phosphating process down to room temperature and to abandon toxic nitrate and nitrite compounds. We have carried out studies of the low-temperature sedimentation process of crystalline phosphate coatings, which allows to obtain phosphate layers with an increased protective ability (PA). We have developed low-temperature phosphating solutions, operating at a temperature of 20-27 ºC, allowing to obtain adhesive phosphate coatings with a specific weight of 3.0 g/m 2 , suitable as an underlayer for paint and varnish coatings, and anticorrosive coatings with a specific weight of 7.5 g/m 2 . It was revealed that phosphate layers of various thicknesses are formed from the same solution at different temperatures. They can be used to form anticorrosive layers for oiling with a specific gravity of up to 8.0 g/m 2 and adhesion layers for coloring with a specific gravity of up to 5.0 g/m 2 . surface treatment.","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":"128731709","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

Optimization of operating conditions of aluminum melt refining process in laboratory conditions 实验室条件下铝熔体精炼工艺操作条件的优化

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4257

L. Socha, K. Gryc, J. Svizelová, Tomáš Prášil, Roman Pospisil, Martin Gráf

引用次数: 0

cohesion strenght test of selected commercial hvof coatings 选定商用hvof涂料的内聚强度试验

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4206

J. Antoš, J. Duliškovič, P. Šulcová, K. Lencová

{"title":"cohesion strenght test of selected commercial hvof coatings","authors":"J. Antoš, J. Duliškovič, P. Šulcová, K. Lencová","doi":"10.37904/metal.2021.4206","DOIUrl":"https://doi.org/10.37904/metal.2021.4206","url":null,"abstract":"High velocity oxy-fuel spraying (HVOF) being one of thermal spraying techniques, is deployed in many commercial applications mostly for very hard wear and/or corrosion resistant coatings. Supersonic speed of the spraying jet combined with temperatures around 5500 K is utilized to spray most metals, metallic alloys, cermets and superalloys [1-3]. Typical HVOF coatings are compact, dense, with very low porosity, low to moderate oxidation level and high bonding strength to substrate [1]. Cermets and superalloys are standardly commercially applied HVOF materials, demanded for superb wear resistance, high hardness, abrasion and erosion resistance and overall great performance in high stress and/or high temperature environments. Proper testing methods are required to evaluate quality of deposited coatings and consequently choose coating with optimized properties for demanded application. There are many testing methods standardly and widely used for evaluating properties of thermally sprayed coatings – such as superficial indentation, micro and nanoindentation on cross section of the coating, tensile adhesion strength test, many tribological tests, etc. [1]. This article concerns modified TCT (tubular coating tensile test) for testing cohesion strength of the coatings with the use of common tensile test equipment. In this paper, specimen assembly, coating deposition, testing procedure and calculation of results is described. Cohesion strengths of five HVOF commercial coatings: Stellite 6, Hastelloy C 276, Cr 3 C 2 -25NiCr, WC 10Co4Cr and NiCrFeSiBC are evaluated.","PeriodicalId":266696,"journal":{"name":"METAL 2021 Conference Proeedings","volume":"7 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":"116616535","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

CORRELATION between MORPHOLOGY OF POLYMER COATING’S with TEXTURED SURFACE OF METAL AND ITS CORROSION RESISTANCE 金属织构表面聚合物涂层形貌与耐蚀性的关系

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4203

Aleksander Baidzhanov, O. Maksimova, A. Maksimov

引用次数: 0

Opportunity welding energy in capacitors of amorphous alloy foils, Ni63Cr12Fe4Si8B13 Ni63Cr12Fe4Si8B13非晶合金箔电容器的机会焊接能量

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4227

Dragoş DRĂGĂNESCU-ANGHEL, C. Codrean, D. Buzdugan, I. Mitelea, M. Burcă

{"title":"Opportunity welding energy in capacitors of amorphous alloy foils, Ni63Cr12Fe4Si8B13","authors":"Dragoş DRĂGĂNESCU-ANGHEL, C. Codrean, D. Buzdugan, I. Mitelea, M. Burcă","doi":"10.37904/metal.2021.4227","DOIUrl":"https://doi.org/10.37904/metal.2021.4227","url":null,"abstract":"Amorphous alloys have attracted considerable attention as new structural materials due to their excellent mechanical properties, high wear and corrosion resistance, magnetic properties, and electrical resistivity. However, most of them become brittle by crystallization, structural relaxation, or by separating intermetallic phases during heating. That is why the traditional methods of melt welding based on the introduction of a large amount of heat and the production of intermetallic phases on the interface between the seam and the thermally influenced area are not suitable for joining these materials. Such welding methods can lead to the destruction of the amorphous structure and to the worsening of the useful properties of the welded joints. In this paper, a new method of joining amorphous alloys is investigated based on the modification of the welding energy for different values of the capacity of the capacitor, keeping constant the pressing force and the transformation ratio. The examination of the quality of the welded joints was done by macro graphic analyzes, mechanical tests, and calorimetry with differential scanning. (Differential Scanning Calorimeter)","PeriodicalId":266696,"journal":{"name":"METAL 2021 Conference Proeedings","volume":"6 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":"122149812","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

study on laser-assisted spinning of aged Aluminum alloy sheet 时效铝合金薄板激光辅助旋压的研究

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4109

Fengqi Wang, Jinyu Ran, Chenyang Du, Ruo-xi Song, Zhong-qi Yu

引用次数: 0

PREPARATION FOR IMPLEMENTATION OF INDUSTRY 4.0 IN SMALL AND MEDIUM-SIZED ENTERPRISES OF METAL INDUSTRY 金属行业中小企业实施工业4.0的准备工作

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4301

D. Klimecka-Tatar, M. Ingaldi, R. Ulewicz, R. Dwornicka

引用次数: 1

BALL-MILLED HYDROGEN STORAGE IN Mg-Cu – BASED ALLOYS MODIFIED BY KCl: DISTRIBUTION OF COMPONENTS KCl改性镁铜基合金球磨储氢:组分分布

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4213

J. Čermák, L. Král, P. Roupcová

引用次数: 0