Journal of Casting & Materials Engineering最新文献

Polylactide Used as Filment in 3d Printing – Part 2: TG-DTG, DSC and DRIFT investigations 在 3D 打印中用作滤料的聚乳酸 - 第 2 部分：TG-DTG、DSC 和 DRIFT 研究

Journal of Casting & Materials Engineering Pub Date : 2023-10-23 DOI: 10.7494/jcme.2023.7.4.41

B. Grabowska, Mateusz Skowron, K. Kaczmarska

引用次数: 0

Ecological Electroplating Baths and Their Application in the Tin-coating of Copper Wires Intended for Photovoltaic Cables 生态电镀槽及其在光伏电缆铜线镀锡中的应用

Journal of Casting & Materials Engineering Pub Date : 2023-07-26 DOI: 10.7494/jcme.2023.7.3.31

Aleksander Olędzki, Tadeusz Knych, M. Zasadzińska

{"title":"Ecological Electroplating Baths and Their Application in the Tin-coating of Copper Wires Intended for Photovoltaic Cables","authors":"Aleksander Olędzki, Tadeusz Knych, M. Zasadzińska","doi":"10.7494/jcme.2023.7.3.31","DOIUrl":"https://doi.org/10.7494/jcme.2023.7.3.31","url":null,"abstract":"Copper wires are covered with various coatings for many different applications. The most popular are tin based coatings and both their thickness and quality have been standardized by means of appropriate standard specifications. Copper wires intended for photovoltaic cables are subjected to especially high requirements due to their exceptionally long operating time and extremely unfavourable working conditions. Tin coatings are applied using the electroplating method and generally a fluoroborate bath is used during the process, however, it has been proved to be a health hazard in general and harmful to the environment as a whole. The paper presents the research results of a new ecological methane-sulfonate bath which does not form hazardous waste in the process. The examples of tin coatings of various thickness and the way of obtaining them at varying electrodeposition speeds at constant current or constant speed with varying current intensity were analysed. It has been determined that the use of the new electroplating bath is not only beneficial from an ecological point of view, but also in terms of the coating quality and efficiency of the process.","PeriodicalId":365630,"journal":{"name":"Journal of Casting & Materials Engineering","volume":"51 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139354699","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

Effect of Cavitation Phenomenon on the Quality of High-Pressure Aluminium Alloy Castings 气蚀现象对高压铝合金铸件质量的影响

Journal of Casting & Materials Engineering Pub Date : 2023-07-20 DOI: 10.7494/jcme.2023.7.3.27

M. Brzeziński, Jakub Wiśniowski

引用次数: 0

An Analysis of the Prospects of the Use of Magnetic Water Treatment in Foundry Engineering 铸造工程中使用磁性水处理技术的前景分析

Journal of Casting & Materials Engineering Pub Date : 2023-06-30 DOI: 10.7494/jcme.2023.7.2.22

Leonid Dan, L. Trofimova

引用次数: 0

Research on New Al-Ag-Mo Alloys Dedicated to Wire Applications in Overhead Power Lines 架空电力线专用新型Al-Ag-Mo合金的研究

Journal of Casting & Materials Engineering Pub Date : 2023-03-31 DOI: 10.7494/jcme.2023.7.1.9

J. Grzebinoga, A. Mamala, W. Ściężor, R. Kowal

{"title":"Research on New Al-Ag-Mo Alloys Dedicated to Wire Applications in Overhead Power Lines","authors":"J. Grzebinoga, A. Mamala, W. Ściężor, R. Kowal","doi":"10.7494/jcme.2023.7.1.9","DOIUrl":"https://doi.org/10.7494/jcme.2023.7.1.9","url":null,"abstract":"The latest research work in the field of electric power systems focuses on the development of new wire materials which will allow the increase of the transmission capacity of power lines currently in use. The reason for this research was the often limited possibilities of continuous and failure-free transmission of electricity. In this paper, the authors present research on a new aluminium-based alloy dedicated for use as a conductive braid in the HTLS cable group. There are many technical solutions for this group of cables on the market, although they are solutions with a number of disadvantages, ranging from their high price, various operational shortcomings, complicated installation techniques, and ending with the risk of monopolistic practices, which is related to the inability to attract several competitive suppliers. The main aim of the research was to develop a new alloy based on aluminium with the addition of silver and molybdenum dedicated for use in special overhead power cables. Experimental research on new materials focused on obtaining the necessary knowledge to produce an overhead wire from these alloys with higher current carrying capacity in relation to the currently used conventional wire materials based on aluminium.","PeriodicalId":365630,"journal":{"name":"Journal of Casting & Materials Engineering","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114759441","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

Effect of Particle Size of a Powder upon the Properties and Microstructure of Boron-modified Fe-Ni-Mo-Cu Sinters 粉末粒度对硼改性Fe-Ni-Mo-Cu烧结矿性能和微观结构的影响

Journal of Casting & Materials Engineering Pub Date : 2023-03-30 DOI: 10.7494/jcme.2023.7.1.1

M. Perek-Nowak, Magdalena Majchrowska, J. Karwan-Baczewska, M. Rosso

{"title":"Effect of Particle Size of a Powder upon the Properties and Microstructure of Boron-modified Fe-Ni-Mo-Cu Sinters","authors":"M. Perek-Nowak, Magdalena Majchrowska, J. Karwan-Baczewska, M. Rosso","doi":"10.7494/jcme.2023.7.1.1","DOIUrl":"https://doi.org/10.7494/jcme.2023.7.1.1","url":null,"abstract":"The article discusses the effect of different particle fractions of prealloyed iron powder on the microstructure, density and hardness of sintered material. Each particle fraction (apart from 160–200 µm, which is a trace fraction) was modified with boron, its contents being, respectively, 0.2 wt.%, 0.4 wt.% and 0.6 wt.%. Next, the powder mixtures were pressed under a pressure of 600 MPa, and the final compacts were subject to sintering at 1200°C for 60 min in a hydrogen atmosphere. It was observed that the higher values of density and hardness were found in samples made from finer fractions of powder. A higher homogeneity of the microstructure and the highest degree of compactness was obtained in sinters from powder of 40–56 µm particle size, with 0.4 wt.% boron. Due to the use of small particle fractions of prealloyed powder, a higher degree of compactness in sinters was obtained with lower boron content. Also indicated was which particle fraction of Fe-Ni-Mo-Cu powder should be applied to obtain density in sinters with boron addition equal to almost 100% of the relative density of the analyzed alloy. The presented studies have both scientific and technological aspects.\u0000 ","PeriodicalId":365630,"journal":{"name":"Journal of Casting & Materials Engineering","volume":"223 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134019999","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 Formation, Properties and Use of Dispersed Iron-Graphite Metallurgical Waste 分散铁石墨冶金废料的形成、性质及利用

Journal of Casting & Materials Engineering Pub Date : 2022-12-30 DOI: 10.7494/jcme.2022.6.4.81

Leonid Dan, V. Maslov, L. Trofimova, G. Cios

{"title":"The Formation, Properties and Use of Dispersed Iron-Graphite Metallurgical Waste","authors":"Leonid Dan, V. Maslov, L. Trofimova, G. Cios","doi":"10.7494/jcme.2022.6.4.81","DOIUrl":"https://doi.org/10.7494/jcme.2022.6.4.81","url":null,"abstract":"Dispersed wastes containing graphite, iron, and its oxides, getting into the air and accumulating in landfills, cause serious harm to human health and the environment. Moreover, even if the issue of the localization of these wastes has been solved successfully, their disposal has not yet been fully organized. In the present study, a systematic analysis of the dispersed iron-graphite waste (IGW) conditions for the formation at metallurgical enterprises, their structure, and their properties were carried out. In this case, special attention is focused on the electrophysical properties: specific saturation magnetization and volume resistivity. The presence of magnetic properties in IGW, combined with low electrical resistivity, makes IGW a promising and inexpensive raw material for obtaining cheap composite materials with radio shielding and radio absorbing properties in the microwave range. As a result of the research, effective ways of improving the magnetic properties of IGW by high-temperature treatment were obtained. The practical result of the research was the development and implementation of a technological scheme of dispersed IGW complex processing, which makes it possible to solve a twofold task – to exclude the ingress of iron-graphite wastes into the environment and to obtain a cheap material for protection against microwave radiation.","PeriodicalId":365630,"journal":{"name":"Journal of Casting & Materials Engineering","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115782695","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 Ladle Tilting Speed for Preventing Temperature Drops in the Die Casting Process 为防止压铸过程中温度下降而优化钢包倾斜速度

Journal of Casting & Materials Engineering Pub Date : 2022-12-22 DOI: 10.7494/jcme.2022.6.4.69

Haru Ando, Daichi Minamide, Yuto Takagi, K. Yano, N. Nakamura, M. Sano, Takahiro Aoki, Yasunori Nemoto

{"title":"Optimization of Ladle Tilting Speed for Preventing Temperature Drops in the Die Casting Process","authors":"Haru Ando, Daichi Minamide, Yuto Takagi, K. Yano, N. Nakamura, M. Sano, Takahiro Aoki, Yasunori Nemoto","doi":"10.7494/jcme.2022.6.4.69","DOIUrl":"https://doi.org/10.7494/jcme.2022.6.4.69","url":null,"abstract":"In die casting, molten metal poured into a shot sleeve is pressed into a mold by a plunger at high speed. The temperature of the metal drops significantly while it is being poured from the ladle to the shot sleeve, resulting in casting defects such as misrun flow lines. Although it is important to control the temperature at all stages of the process, a method for minimizing temperature loss has not yet been clarified to date. In this study, the cause of the temperature drop in the shot sleeve was clarified, and a method of optimizing the ladle tilting speed was proposed to prevent temperature drop. First, experiments were conducted to measure the decrease in metal temperature in the sleeve during pouring. These experiments revealed that the metal cools significantly from the moment it touches the shot sleeve. Therefore, the time from the first contact between the shot sleeve and the metal to the start of pouring was set as the objective function. A genetic algorithm was then used to derive the optimal ladle tilting speed pattern to suppress the temperature drop. This analysis confirmed that the metal was poured without flowing out or running ahead and that the immediate liquid level vibration after pouring was suppressed, thus ensuring stable pouring.","PeriodicalId":365630,"journal":{"name":"Journal of Casting & Materials Engineering","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126510172","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 Optimization of a Numerical Steel Foundry Simulation Through a Characterization of the Thermal Properties of the Materials 通过表征材料的热性能来优化数值铸钢模拟

Journal of Casting & Materials Engineering Pub Date : 2022-12-22 DOI: 10.7494/jcme.2022.6.4.76

Morgan Souêtre, Alexis Vaucheret, P. Jacquet, J. Carton

{"title":"The Optimization of a Numerical Steel Foundry Simulation Through a Characterization of the Thermal Properties of the Materials","authors":"Morgan Souêtre, Alexis Vaucheret, P. Jacquet, J. Carton","doi":"10.7494/jcme.2022.6.4.76","DOIUrl":"https://doi.org/10.7494/jcme.2022.6.4.76","url":null,"abstract":"In many foundries, numerical simulation is used to determine the origins of different defects as this tool allows the acceleration of the design process. However, the databases provided by different software do not seem to tally with the actual properties of the material. In fact, every foundry uses a different grade of steel and varying mixtures of sand. An evaluation of the impact of different material properties showed the importance of measuring every physical property to improve the database of the software. Following this, an experiment was conducted to evaluate the gap between numerical simulations and the results obtained through experimentation. This experiment, called thermal analysis, consists in measuring the solidification and cooling of a cylinder filled with liquid steel. After the calculation of the steel properties and a simulation with real experimental parameters, a comparison between each cooling curve was realized. This comparison shows that the calculated properties provide a simulated cooling curve which is closer to the experimental curve than the properties in the original database. We did not explore all of the metal properties in this study, but the modification of the sand properties was explored, together with the thermal conductivity of the steel and sand. These other measurements will be obtained in a future study.","PeriodicalId":365630,"journal":{"name":"Journal of Casting & Materials Engineering","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129130200","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 Effect of High Silicon and Molybdenum Content on the Mechanical Properties and Microstructure of Gray Cast Iron 高硅钼含量对灰口铸铁力学性能和组织的影响

Journal of Casting & Materials Engineering Pub Date : 2022-10-01 DOI: 10.7494/jcme.2022.6.3.64

Łukasz Dyrlaga, D. Kopyciński, E. Guzik, G. Soból, Dariusz Borak

引用次数: 0

Journal of Casting &amp; Materials Engineering最新文献

Journal of Casting & Materials Engineering最新文献