Archives of Foundry Engineering最新文献

Effect of Composition and Pouring Temperature of Cu-Sn on Fluidity and Mechanical Properties of Investment Casting 铜镍合金成分和浇注温度对熔模铸造流动性和机械性能的影响

IF 0.6

Archives of Foundry Engineering Pub Date : 2024-07-22 DOI: 10.24425/afe.2024.151290

S. Slamet, Slamet Khoeron, Ratri Rahmawati, Suyitno, I. Kusumaningtyas

{"title":"Effect of Composition and Pouring Temperature of Cu-Sn on Fluidity and Mechanical Properties of Investment Casting","authors":"S. Slamet, Slamet Khoeron, Ratri Rahmawati, Suyitno, I. Kusumaningtyas","doi":"10.24425/afe.2024.151290","DOIUrl":"https://doi.org/10.24425/afe.2024.151290","url":null,"abstract":"The composition and pouring temperature are important parameters in metal casting. Many cast product failures are caused by ignorance of the influence of both. This research aims to determine the effect of adding tin composition and pouring temperature on fluidity, microstructure and mechanical properties including tensile strength and hardness of tin bronze (Cu-Sn). The Cu-Sn is widely used as employed in the research is Cu (20, 22 and 24) wt.%Sn alloy using the investment casting method. Variations in pouring temperature treatment TS1 = 1000°C and TS2 = 1100°C. The mold for the fluidity test is made with a wax pattern then coated in clay. The mold dimensions are 400 mm long with mold cavity variations of 1.5, 2, 3, 4, 5 mm. Several parameters: increasing the pouring temperature, adding tin composition, decreasing the temperature gradient between the molten metal and the mold walls result in a decrease in the solidification rate which can increase fluidity. The α + δ phase transition to β and γ intermetallic phases decreases fluidity at >22wt.%Sn. The columnar dendrite microstructure increases with the addition of tin composition and pouring temperature. The mechanical properties of tensile strength decrease, hardness increases and the alloy becomes more brittle with increasing tin composition.","PeriodicalId":8301,"journal":{"name":"Archives of Foundry Engineering","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141816564","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

Casting Production in Poland Versus European Trends in 21st Century 波兰的铸造生产与 21 世纪欧洲趋势的对比

IF 0.6

Archives of Foundry Engineering Pub Date : 2024-07-22 DOI: 10.24425/afe.2024.151291

M.S. Soiński, A. Jakubus

{"title":"Casting Production in Poland Versus European Trends in 21st Century","authors":"M.S. Soiński, A. Jakubus","doi":"10.24425/afe.2024.151291","DOIUrl":"https://doi.org/10.24425/afe.2024.151291","url":null,"abstract":"This article presents changes of the total casting production volumes and of the production of castings made from basic casting alloys in Poland, in Europe and worldwide in years 2001–2021. Analogous casting production parameters were compared for Poland, Europe and countries being the leading European and global manufacturers in years 2001, 2011 and 2021. The leading casting manufacturers in Europe (with the manufacturing volume exceeding 1 million tons in the mentioned years) include Germany, Italy, the Ukraine, France and Spain. For years, the largest casting manufacturer worldwide has been China. In 2001–2021, global casting production increased from ca. 68 million tons to ca. 97 million tons (i.e. by ca. 42%), whereas the European one decreased from ca. 17 million tons to ca. 12 million tons (i.e. by close to 30%). In the analyzed period, the Polish production volume grew from ca. 0.75 million tons to ca. 0.88 million tons (i.e. by ca. 17%). The presented data reveal the decreasing importance of gray cast iron and cast steel and the increasing one of ductile cast iron and aluminum alloys. However, the Polish average annual growth rate for aluminum alloy casting production was 10.3%, whereas the global one was 3% and the European one 0.7%.","PeriodicalId":8301,"journal":{"name":"Archives of Foundry Engineering","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141815198","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

Abrasive Wear Resistance of Nodular Cast Iron After Selected Surface Heat and Thermochemical Treatment Processes 经过选定的表面热处理和热化学处理工艺后的球墨铸铁的耐磨损性

IF 0.6

Archives of Foundry Engineering Pub Date : 2024-07-19 DOI: 10.24425/afe.2024.151287

C. Baron, M. Stawarz, A. Studnicki, J. Jezierski, T. Wróbel, R. Dojka, M. Lenert, K. Piasecki

{"title":"Abrasive Wear Resistance of Nodular Cast Iron After Selected Surface Heat and Thermochemical Treatment Processes","authors":"C. Baron, M. Stawarz, A. Studnicki, J. Jezierski, T. Wróbel, R. Dojka, M. Lenert, K. Piasecki","doi":"10.24425/afe.2024.151287","DOIUrl":"https://doi.org/10.24425/afe.2024.151287","url":null,"abstract":"The article presents the test results on the technology of surface hardening of castings from unalloyed and low-alloy nodular cast iron using the method of surface heat treatment, i.e., induction surface hardening and methods of thermochemical treatment, i.e. gas nitriding, nitrocarburizing, and nitrocarburizing with oxidation. The scope of research included macro- and microhardness measurements using Rockwell and Vickers methods, respectively, as well as metallographic microscopic examinations using a light microscope. Furthermore, abrasive wear resistance tests were performed using the pin-on-disk method in the friction pair of nodular cast iron – SiC abrasive paper and the reciprocating method in the friction pair of nodular cast iron – unalloyed steel. Analysis of the test results shows that the size and depth of surface layer hardening strongly depend on the chemical composition of the nodular cast iron, determining its hardenability and its ability to create diffusion layers. Medium induction surface hardening made it possible to strengthen the surface layer of the tested nodular cast irons to the level of 700 HV0.5 with a hardening depth of up to approximately 4000μm, while various variants of thermochemical treatment provided surface hardness of up to 750 HV0.5 with a hardening depth of up to approximately 200μm. Furthermore, induction surface hardening increased the resistance to abrasive wear of nodular cast iron castings, depending on the test method, by an average of 70 and 45%, while thermochemical treatment on average by 15 and 60%.","PeriodicalId":8301,"journal":{"name":"Archives of Foundry Engineering","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141822213","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

Comparison of the Mechanical Properties of Ductile Cast Iron Intended for Gas Gate Valves with Nickel Cast Iron with an Austenitic Matrix 气体闸阀用球墨铸铁与奥氏体基体镍铸铁机械性能的比较

IF 0.6

Archives of Foundry Engineering Pub Date : 2024-07-19 DOI: 10.24425/afe.2024.151288

A. Rączka, A. Szczęsny, D. Kopyciński, Fabryka Armatur, Jafar S.A. Kadyiego, Street, Jasło, Poland

{"title":"Comparison of the Mechanical Properties of Ductile Cast Iron Intended for Gas Gate Valves with Nickel Cast Iron with an Austenitic Matrix","authors":"A. Rączka, A. Szczęsny, D. Kopyciński, Fabryka Armatur, Jafar S.A. Kadyiego, Street, Jasło, Poland","doi":"10.24425/afe.2024.151288","DOIUrl":"https://doi.org/10.24425/afe.2024.151288","url":null,"abstract":"The study presents a comparison of the results of structural tests, impact strength and strength properties of cast iron EN-GJS-400-15, which is produced in industrial conditions and the ductile cast iron, with addition of nickel, in austenitic matrix. Due to the ongoing energy transformation and attempts to inject hydrogen into existing gas grids, gas fittings manufacturers are looking for materials that will be more resistant to the destructive effects of hydrogen than the currently used ductile cast iron. The aim of the work was to obtain cast iron with the addition of nickel (about 20%) with similar strength parameters, better impact strength, both at room temperature and at lower temperatures, as well as a stable austenitic matrix in ductile cast iron. All assumptions were achieved. In the future, research should be undertaken to develop an economically optimal chemical composition, without a significant loss of strength properties, and the resistance of gate valves made of austenitic cast iron to the destructive effects of hydrogen should be examined. The work is preliminary research.","PeriodicalId":8301,"journal":{"name":"Archives of Foundry Engineering","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141822490","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

Kinetic Model for the Decomposition Rate of the Binder in a Foundry Sand Application 铸造砂应用中粘结剂分解率的动力学模型

IF 0.6

Archives of Foundry Engineering Pub Date : 2024-07-19 DOI: 10.24425/afe.2024.151289

T. Matsushita, D. Sundaram, I. Belov, A. Diószegi

引用次数: 0

Effect of Addition of Ti on Selected Properties of AlSi5Cu2Mg Alloy 添加钛对 AlSi5Cu2Mg 合金某些性能的影响

IF 0.6

Archives of Foundry Engineering Pub Date : 2024-07-18 DOI: 10.24425/afe.2024.151285

M. Sýkorová, D. Bolibruchová, M. Brůna, M. Chalupová

{"title":"Effect of Addition of Ti on Selected Properties of AlSi5Cu2Mg Alloy","authors":"M. Sýkorová, D. Bolibruchová, M. Brůna, M. Chalupová","doi":"10.24425/afe.2024.151285","DOIUrl":"https://doi.org/10.24425/afe.2024.151285","url":null,"abstract":"The paper focuses on the investigation of the influence of Ti on selected properties of the hypoeutectic aluminium alloy AlSi5Cu2Mg. AlSi5Cu2Mg alloy finds application in the field of production of high-strength cylinder head castings intended for the automotive industry due to the optimal combination of mechanical, physical and foundry properties. In commercial production, the maximum Ti content is limited by the manufacturer (Ti max. = 0.03 wt.%), which significantly limits the possibilities of refinement the alloy with Ti-based grain refiners. Therefore, the possibility of increasing the Ti content beyond the manufacturer's recommendation is considered in this work. The main aim of the work is to evaluate the influence of graded Ti addition (0.1; 0.2; 0.3 wt.% Ti) on the resulting mechanical and physical properties of the AlSi5Cu2Mg alloy. Simultaneously, the influence of increased Ti content on the microstructure of AlSi5Cu2Mg alloy is evaluated. The alloying element was introduced into the melt in the form of AlTi5B1 master alloy. The effect of T6 heat treatment on the resulting mechanical and physical properties and microstructure of the hypoeutectic AlSi5Cu2Mg alloy with graded Ti addition was also investigated in the experimental work.","PeriodicalId":8301,"journal":{"name":"Archives of Foundry Engineering","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141826712","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

Utilizing Taguchi method and Regression Analysis for Optimizing Sand Mould Flowability 利用田口方法和回归分析优化砂模流动性

IF 0.6

Archives of Foundry Engineering Pub Date : 2024-07-18 DOI: 10.24425/afe.2024.151284

D. Abdulamer, A. Muhsan, Sinan S. Hamdi

引用次数: 0

Research of Hybrid Aluminium Castings with the Use of Porous Cores 使用多孔芯材的混合铝铸件研究

IF 0.6

Archives of Foundry Engineering Pub Date : 2024-07-18 DOI: 10.24425/afe.2024.151286

M. Brůna, M. Medňanský, P. Oslanec

{"title":"Research of Hybrid Aluminium Castings with the Use of Porous Cores","authors":"M. Brůna, M. Medňanský, P. Oslanec","doi":"10.24425/afe.2024.151286","DOIUrl":"https://doi.org/10.24425/afe.2024.151286","url":null,"abstract":"The paper focuses on the research of hybrid aluminium castings produced by overcasting technology. This is an advanced technology for ensuring the lightness of castings by using the principle of overcasting a core with a porous cellular structure produced by foaming. Process parameters in the foaming phase of the material have a great influence on the resulting porous structure. The article focuses on controlling the influence of pressure during the foaming process on the resulting porosity and evaluating by X-ray tomograph and measuring the relative density. Variants using an initial pressure of 0.3 MPa appear to be the most satisfactory. The challenge of this technology is to ensure adequate bonding of the metals at the interface between the porous core and the solidified metal without penetrating the coating layer. For this reason, the surface treatment of foamed cores with various etchants has been proposed to disrupt the oxide layer on their surface. Macrographs of the uncoated sample and samples etched with 0.5% HF and 10% H3PO4 demonstrated the need for core surface treatment to prevent liquid metal penetration. EDX analysis confirmed the presence of AlPO4 at the core/casting interface in the treated sample.","PeriodicalId":8301,"journal":{"name":"Archives of Foundry Engineering","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141826142","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

Bio-regeneration for Sodium Silicate Used Sands and its Unattended Monitoring System 硅酸钠废砂的生物再生及其无人值守监控系统

IF 0.6

Archives of Foundry Engineering Pub Date : 2024-06-11 DOI: 10.24425/afe.2024.149278

Huafang Wang, Zhaoxian Jing, Ao Xue, Yuhan Tang, Lei Yang, Jijun Lu

引用次数: 0

Decarbonization of Production Systems in Foundries 铸造厂生产系统的去碳化

IF 0.6

Archives of Foundry Engineering Pub Date : 2024-06-11 DOI: 10.24425/afe.2024.149276

C. Kolmasiak

{"title":"Decarbonization of Production Systems in Foundries","authors":"C. Kolmasiak","doi":"10.24425/afe.2024.149276","DOIUrl":"https://doi.org/10.24425/afe.2024.149276","url":null,"abstract":"The article discusses the growing importance of decarbonization of production systems in the foundry industry as a response to climate challenges and increasing requirements for sustainable development. The process of reducing greenhouse gas emissions in foundry production is caused by a number of reasons. Decarbonization of the foundry industry refers to actions aimed at reducing greenhouse gas emissions, especially carbon dioxide (CO2). Reducing carbon dioxide emissions is increasingly being considered as a key element of the strategy of both small and large foundries around the world. Foundry is one of the industries that generates significant amounts of carbon dioxide emissions due to the energy consumption in the process of melting and forming metals. There is virtually no manufacturing industry that does not use elements cast from iron, steel or non-ferrous metals, ranging from elements made of aluminum to zinc. The article presents various decarbonization strategies available to foundries, such as: the use of renewable energy, the use of more efficient melting technologies, or the implementation of low-energy technologies throughout the production process. Application examples from different parts of the world illustrate how these strategies are already being put into practice, as well as the potential obstacles and challenges to full decarbonization.","PeriodicalId":8301,"journal":{"name":"Archives of Foundry Engineering","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141357886","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