Archives of Foundry Engineering最新文献_第2页

Examination of the Force Parameters in Drawing Process of CuZn39Pb3 Cast Rod using Selected Lubricants 使用选定润滑剂检验 CuZn39Pb3 铸棒拉拔过程中的力参数

IF 0.6

Archives of Foundry Engineering Pub Date : 2023-12-22 DOI: 10.24425/afe.2023.146684

引用次数: 0

Quantitative Prediction of Air Entrainment Defects in Casting Filling Process 铸件充填过程中夹气缺陷的定量预测

IF 0.6

Archives of Foundry Engineering Pub Date : 2023-12-22 DOI: 10.24425/afe.2023.146686

引用次数: 0

The Melting Process and its Impact on the Properties of High-Chromium Cast Iron and the Economic Calculation 熔炼过程及其对高铬铸铁性能的影响和经济计算

IF 0.6

Archives of Foundry Engineering Pub Date : 2023-12-11 DOI: 10.24425/afe.2023.146679

J. Mędoń, A. Szczęsny, E. Ziółkowski, E. Guzik, M. Czarny, D. Kopyciński

{"title":"The Melting Process and its Impact on the Properties of High-Chromium Cast Iron and the Economic Calculation","authors":"J. Mędoń, A. Szczęsny, E. Ziółkowski, E. Guzik, M. Czarny, D. Kopyciński","doi":"10.24425/afe.2023.146679","DOIUrl":"https://doi.org/10.24425/afe.2023.146679","url":null,"abstract":"The subject of this study is to show that the parameters of the melting process of high chromium cast iron affect the cost of casting and the properties of the cast iron. The analysis of the quality of the casting and its price was conducted in terms of the metal charge of high chromium cast iron. As is well known, in order to obtain the correct structure of the casting, and thus good strength properties, it is necessary to use clean batch components free of undesirable impurities. Unfortunately, the quality of the metal charge is proportional to its price. Thus, the use of expensive batch components offers the possibility of obtaining healthy and meeting the strength properties of castings. However, there is a flaw in this approach. And it is from the point of view of economics that production plants are forced to look for savings. Expensive feedstock materials are replaced by cheaper counterparts giving the possibility of obtaining castings with similar properties often, however, at the cost of increased inferior quality. It seems that a way out of this situation is to introduce a modification procedure into the alloyed iron manufacturing technology. The selected modifiers should affect the fragmentation of the structure of the primary austenite. At this point, it can be hypothesized that this will result in the elimination of hot cracking in high chromium cast iron. The industrial research carried out at the \"Swidnica\" Foundry Ltd. made it possible to show by means of the Althoff-Radtke method that by using the modification of the liquid metal of the so-called \"inferior and cheaper\" composition of the metal charge, a reduction in the occurrence of hot cracks and shrinkage cavities can be achieved. In addition, iron-niobium modification not only reduced the formation of casting defects in castings, but also slightly improved the impact strength of high-chromium cast iron. The work was written as part of an implementation PhD.","PeriodicalId":8301,"journal":{"name":"Archives of Foundry Engineering","volume":"15 17","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138980219","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

Flow Effect on Si Crystals and Mn-Phases in Hypereutectic and Eutectic Al-Si-Mn Alloys 流动对超共晶和共晶铝硅锰合金中硅晶体和锰相的影响

IF 0.6

Archives of Foundry Engineering Pub Date : 2023-12-11 DOI: 10.24425/afe.2023.146681

P. Mikołajczak

引用次数: 0

Comparison of Tensile Properties of Nb Grain Refined A206 Alloy by Gravity and Tilt Casting 重力铸造和倾斜铸造铌晶粒细化 A206 合金的拉伸性能比较

IF 0.6

Archives of Foundry Engineering Pub Date : 2023-12-11 DOI: 10.24425/afe.2023.146678

N. Palamutcu, K. Dizdar, H. Sahin, D. Dispinar

引用次数: 0

Computed Tomography and Scanning Electron Microscopy Analysis of a Friction Stir Welded Al-Cu Joint 摩擦搅拌焊接铝铜接头的计算机断层扫描和扫描电子显微镜分析

IF 0.6

Archives of Foundry Engineering Pub Date : 2023-12-11 DOI: 10.24425/afe.2023.146680

W. P. Depczyński, D. Bańkowski, P. Młynarczyk

引用次数: 0

A Novel Approach for Durability Evaluation of Metal Protective Coatings in Dynamic Interplay with the Liquid Alloy 金属保护涂层与液态合金动态相互作用耐久性评价新方法

Archives of Foundry Engineering Pub Date : 2023-11-13 DOI: 10.24425/afe.2023.146677

引用次数: 0

Investigations Concerning Improvements of the Knock Out Property of Ceramic Moulds Applied in the Investment Casting Technology 在熔模铸造技术中提高陶瓷模具敲出性能的研究

Archives of Foundry Engineering Pub Date : 2023-11-08 DOI: 10.24425/afe.2023.146676

{"title":"Investigations Concerning Improvements of the Knock Out Property of Ceramic Moulds Applied in the Investment Casting Technology","authors":"","doi":"10.24425/afe.2023.146676","DOIUrl":"https://doi.org/10.24425/afe.2023.146676","url":null,"abstract":"In lost wax technology, self-supporting ceramic moulds are made, which must have adequate strength after being filled with liquid metal. The final structural strength is determined by such factors as the thickness of the individual layers applied to the wax model resulting from the viscosity of the liquid mass, the specific strength of the layers formed, and the heat treatment of the moulds. The development of technology and materials is moving in the direction of increasing the specific strength of self-supporting ceramic moulds. The consequence of this is that the final strength of these moulds is too high, making it difficult to knock castings out of the moulds. Removing mould remnants from holes, closed spaces of the casting, corners, sharp edges, variable cross sections and etc. is cumbersome. In order to remove mould remnants from the casting, a method is used to dissolve them in heated solutions of suitable chemical composition and reaction. The paper presents the results of research on a new solution, the essence of which is the production of layers in a ceramic mould, in the middle zone of the mould, characterized by a significantly reduced final strength, achieved after firing. These layers are produced using a different liquid ceramic mass than the base one, based on an organic binder. As a result, thanks to the embedded layer, very good knock-out of castings is achieved and separation of residual ceramic mass. Special layers can be incorporated over the entire surface or only in those places where the bonding of the casting surface and ceramic mass occurs.","PeriodicalId":8301,"journal":{"name":"Archives of Foundry Engineering","volume":"64 1‐2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135341984","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

Analysis of Inorganic Binder Bridges Destruction after Thermal Load 无机粘结剂桥梁热载荷破坏分析

Archives of Foundry Engineering Pub Date : 2023-11-06 DOI: 10.24425/afe.2019.127111

I. Vaskova, M. Conev

{"title":"Analysis of Inorganic Binder Bridges Destruction after Thermal Load","authors":"I. Vaskova, M. Conev","doi":"10.24425/afe.2019.127111","DOIUrl":"https://doi.org/10.24425/afe.2019.127111","url":null,"abstract":"Recently, the use of inorganic binders cured by heat as a progressive technology for large scale production of cores is widely discussed topic in aluminium foundries. As practical experiences show, knock-out properties of inorganic binders were significantly increased, although they cannot overcome organic based binder systems. This paper contains information about hot curing processes based on alkali silicate and geopolymer binder systems for core making. Main differences between hot cured geopolymers and hot cured alkali silicate based inorganic binders are discussed. Theory of geopolymer binder states, that binder bridge destruction is mainly of adhesive character. The main aim of this research paper was to examine binder bridge destruction of alkali silicate and geopolymer binder systems. In order to fulfil this objective, sample parts were submitted to defined thermal load, broken and by using SEM analysis, binder bridge destruction mechanism was observed. Results showed that geopolymer binder system examined within this investigation does not have mainly adhesive destruction of binder bridges, however the ratio of adhesive-cohesive to cohesive destruction is higher than by use of alkali silicate based binder systems, therefore better knock-out properties can be expected.","PeriodicalId":8301,"journal":{"name":"Archives of Foundry Engineering","volume":"4 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135544383","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 Analysis of Microhardness Variations of Hydroformed P265TR1 Steel Axisymmetric Elements from Tubes 液压成形P265TR1钢管轴对称件显微硬度变化分析

Archives of Foundry Engineering Pub Date : 2023-11-06 DOI: 10.24425/afe.2020.133333

引用次数: 0