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Research in the field of hard-facing of various parts mechanical systems' are being done for technical and techno-economic reasons. The reasons for... DOAJ is a community-curated online directory that indexes and provides access to high quality, open access, peer-reviewed journals.
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A special attention is paid to characteristic working conditions and complex wear mechanisms. In order to select the most appropriate reparation technology, both model and real investigations …
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In this paper, the reparatory hard facing of the damaged forging dies is considered. The objective was to establish the optimal reparatory technology based on cooling time t8/5 . The verification of the adopted technology was done by investigation of the hard faced layers microstructure and measurements of hardness within the welded layers ...
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reparation technology of the forging dies by hard facing. In [6] the optimal technology was considered based on criterion of the cooling time between 800 and 500°C, t. 8/5, for the same steels that are considered in this paper (proposed hard facing technology is described in details in ref. [6], so presenting of certain data about it is avoided in
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The aim of this work is to analyse the possibility to increase the service life of working parts on construction machinery exposed to intensive wear, such...
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The Centre for Reparation Research (CRR), which commenced operation in March 2017 and which was officially launched in October 2017, was created to promote research on, and engage in advocacy around the legacies of the transatlantic trade in enslaved Africans, African enslavement, Asian indentureship, colonialism and its legacies in the Caribbean; and help to …
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Academic Journals Database is a universal index of periodical literature covering basic research from all fields of knowledge, and is particularly strong in medical research, humanities and social sciences. ... Shape punch ABSTRACT In this paper, for the sake of improving the reparatory hard-facing technology is especially analyzed reparatory ...
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In order to select the most appropriate reparatory technology, both model and real investigations were conducted. [1-6]. The models, made to be geometrically similar to the real …
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Jun 21, 2012· In Tables 3 and 4 are presented the hard facing parameters (hard facing current was for about 10 % lower than at welding), as well as properties of the filler material [5, 7, 8]. 97
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Any reparatory hard facing (HF) of the damaged dies would require the specially adjusted technology to the particular piece. In this paper reparatory hard facing of dies used for forging pieces in the automobile industry is considered. Prior to reparatory hard facing of the real tools, numerous experimental hard facings on models were performed.
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Abstract This paper deals with the problem of defining the optimal procedure for reparation of the machine parts of large dimensions and complex shapes. The procedure consists of establishing the causes of the part's damages, definition of the reparation technology, with selection of its parameters and ways of execution. The reparation is done by hard-facing, with heat …
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Oct 11, 2018· PDF | The selection procedure for welding/hard-facing of thermo-resistant steels, with emphasis on the reparatory hard-facing of the forging dies, is... | Find, read and cite all the research you ...
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the reparatory technology application with respect to replacing the part with the spare one. In any other case the economic effects would be significantly higher, namely even more positive in favor of the hard facing revitalization technology. Key words – Revitalization technology, hard facing, costs, savings, profitability, loader's bucket ...
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The paper presents a verification of advantage of applying the hard facing as the machine parts reparatory technology with respect to the other revitalization technology. The savings realized by application of hard facing reparation of the loader's teeth reach 73.5 % for one set of teeth and 82.40per annum of the costs for purchasing the new ...
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Academia.edu is a platform for academics to share research papers. . × Close Log In. Log In with ... SELECTION OF THE OPTIMAL HARD FACING (HF) TECHNOLOGY OF DAMAGED …
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Tribology in Industry (Mar 2011) . Selection of the Most Appropriate Technology of Reparatory Hard Facing of Working Parts on Universal Construction Machinery
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Technology of Reparatory Hard Facing ... In order to select the most appropriate reparation technology, both model and real investigations were conducted. ... RESEARCH Vuki ć …
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Appropriate technology (AT) is technology that is designed to be "appropriate" to the context it is intended for - including environmentally, culturally and economically. The main characteristics of most ATs are that they should be sustainable, small and appropriate.To be effective in practice, it should be easy to maintain. To be effective for many people and have a wide …
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Dec 01, 2019· 3. Review of the main technology selection methods. Technology selection is part of Multi-Attribute Decision Making (MADM) employed to help decision-makers for rating various alternatives and identifying the technology with the highest rank from a finite number of alternatives (Lazić et al., 2015, Talluri and Yoon, 2000).A technology selection method …
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Academia.edu is a platform for academics to share research papers. . × Close Log In. Log In with ... SELECTION OF THE OPTIMAL HARD FACING (HF) TECHNOLOGY OF DAMAGED FORGING DIES BASED ON COOLING TIME t 8/5. 4 Pages. SELECTION OF THE OPTIMAL HARD FACING (HF) TECHNOLOGY OF DAMAGED FORGING DIES BASED ON COOLING …
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Corpus ID: 168165206; SELECTION OF THE MOST APPROPRIATE WELDING TECHNOLOGY FOR HARDFACING OF BUCKET TEETH @inproceedings{Sedmak2015SELECTIONOT, …
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In exploitation, the forging dies are exposed to heating up to very high temperatures, variable loads: compressive, impact and shear. In this paper, the reparatory hard facing of the damaged forging dies is considered. The objective was to establish...
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Assistive technologies (ATs) for computer access enable people with disabilities to be included in the information society. Current methods for assessment and selection of the most appropriate AT for each individual are non standardized, lengthy, subjective, and require substantial clinical experience of a multidisciplinary team.This manuscript ...
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This research was partially financially supported by European regional development fund and Slovak state budget by ... LAZI, V. (2008). Reparatory hard facing of the rotational device knives for terrain leveling. ... UKI, R. (2011). Selection of the most appropriate technology of reparatory hard facing of working parts on universal ...
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Hard-facing Costs Techno-economic analysis Tribology tests A B S T R A C T Research in the field of hard-facing of various parts mechanical systems' are being done for technical and techno-economic reasons. The reasons for introducing the new reparation technologies by hard-facing are numerous: three
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Oct 17, 2019· It's important to look at user-friendliness through each lens of the technology. Often we see user-friendliness evaluated only from the perspective of end-users doing data collection or capture – that's a crucial lens, but the technology's friendliness for data management, data analysis, data visualization may be equally important. 3.
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Sep 24, 2020· However, the selection of an optimal wastewater treatment technology (WWTT) is a difficult task owing to several alternatives available and multiple criteria involved in the selection process. To resolve this issue, the purpose of this paper is to evaluate different WWTT based on certain pre-defined criteria, and selecting the most suitable ...
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Research in the field of hard-facing of various parts mechanical systems' are being done for technical and techno-economic reasons. The reasons for introducing the new reparation technologies by hard-facing are numerous: three quarters of all the mechanical parts of engineering could be regenerated or manufactured by hard facing; the working life of the …
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Research on appropriate technology* Larry E. Westphal** Recent interest in appropriate technology stems from dissatisfaction with the development process in a number of developing countries. On the one hand, the pace of development, as reflected in an aggregate index such as per capita real income, has been disappointingly slow.
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Jan 01, 1980· Conclusion We have seen that the problem of defining and implementing the "appropriate technology" for growth and development of a country is a mul 5 tivariable, multi component s problem that has to be analized with a formalized approach.The closed feedback loop aspect is inherent to the evolution of technical, economic and so cial structures.
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