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Wyświetlanie 1-2 z 2
Tytuł:
Development of Process Conditions for the Preparation of Copper Alloys Post-Production Chips for the Continuous Casting Process
Autorzy:
Malec, Witold
Cwolek, Beata
Brudny, Anna
Kulasa, Joanna
Marek, W.
Stolorz, K.
Wróbel, D.
Filipowicz, A.
Powiązania:
https://bibliotekanauki.pl/articles/27314152.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
waste
recycling
bronze
moisture of waste
continuous casting
odpady poprodukcyjne
recykling
brąz
wilgotność odpadów
odlewanie ciągłe
Opis:
The paper presents the results of research aimed at developing assumptions for the preparation of a charge in the form of fine scrap copper alloys (chips/shells) guaranteeing effective removal of impurities and obtaining a metal bath of the required metallurgical quality. The tests were conducted for tin-zinc-lead bronze of the CC499K grade. As part of the work, the characteristics of this type of waste available on the market were made in terms of quality and the possibility of their use for the production of both alloys and finished products, taking into account the elimination of harmful impurities that may ultimately affect the production process adversely. The subject of the work was the selection of appropriate waste cleaning methods in the form of an oily shell in the CC499K (CuZn5Sn5Pb2) grade and its drying in terms of increasing the use of impure waste from machining as scrap for direct melting. The waste was assessed in relation to individual parameters. The research was carried out on 3 groups of waste, with varying degrees of moisture.
Źródło:
Archives of Foundry Engineering; 2023, 23, 2; 43--50
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New Ecological Cast Bronzes for Fittings Manufactured from Recycled Waste
Autorzy:
Malec, Witold
Cwolek, Beata
Brudny, Anna
Juszczyk, Barbara
Kulasa, Joanna
Hury, Anna
Marek, W.
Stolorz, K.
Wróbel, D.
Filipowicz, A.
Powiązania:
https://bibliotekanauki.pl/articles/27314124.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
wastes
recycling
continuous casting
machining bronze
lead-free copper alloy
odpady
recykling
odlewanie ciągłe
obróbka brązu
bezołowiowy stop miedzi
Opis:
The article presents tests on a new lead-free bronze CuSn4Zn2PS, intended for fittings for contact with drinking water, in which the addition of lead was replaced with sulphur. The subject of the experimental work was the production of semi-finished products from this alloy based on the charge coming entirely from waste generated after machining. A specialized pilot line was used for the tests, and after cleaning, the waste was melted and then were continuously cast in the form of rods and hollow rods. The cleaning efficiency was assessed, and the manufactured semi-finished products were subjected to tests, including the assessment of the chemical and mechanical homogeneity and the structure of the test batch of the semi-finished casting products in terms of the possibility of manufacturing products meeting the requirements of technical specifications. The obtained results, both in terms of a stable chemical composition, homogeneous and reproducible mechanical properties, fully compliant with the specifications for fittings bronzes (CC499K), as well as the lack of faults of the obtained semi-finished products, despite a very large share of waste material, indicate the possibility of using the tested recycling method for the production of semi-products of sulphur bronze, which is an alloy that is relatively difficult to manufacture.
Źródło:
Archives of Foundry Engineering; 2023, 23, 1; 37--42
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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