The Effect of the Return Material Implementation into the Production of Silumin Casts on Technological and Economic Indicators of Production Process

• Autorzy: Gaspar S. , Majernik J. , Trytek A. , Podaril M. , Benova Z.

Identyfikatory

DOI

10.24425/afe.2022.140219

• Języki publikacji: EN

Abstrakty

EN

The production of high pressure die casts also brings difficulties regarding the processing of the waste material. It is mainly formed by runners, overflows and other foundry supplements used and, in the case of machines using the cold chamber, also the remainder from this chamber. As this material is often returned to the production process, we refer to it as return material. In the production process, it is therefore essential to deal with the proportion issue of return material against primary material that can be added to the melt to maintain the required cast properties. The submitted article monitors the quality properties of the alloy, selected mechanical properties of casts and porosity depending on the proportion of the return material in the melt. At the same time, the material savings are evaluated with regards to the amount of waste and the economic burden of the foundries. To monitor the above-mentioned factors, series of casts were produced from the seven melting process variants with a variable ratio of return to the primary material. The proportion ratio of return material in the primary alloy was adjusted from 100% of the primary alloy to 100% of the return material in the melting process. It has been proven that with the increasing proportion of the return material, the chemical composition of the melt changes, the mechanical properties of the alloy decrease and the porosity of the casts increases. Based on the results of the tests and analyzes, the optimal ratio of return and primary material in the melting process has been determined. Considering the prescribed quality of the alloy and mechanical properties, concerning the economic indicator of the savings, the ratio is set at 70:30 [%] in favor of the primary material.

Słowa kluczowe

EN

HPDC; product development; quality management; mechanical properties; castings defects

PL

HPDC; rozwój produktu; zarządzanie jakością; właściwości mechaniczne; wady odlewów

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2022
• Tom: Vol. 22, iss. 1
• Strony: 69--76
• Opis fizyczny: Bibliogr. 16 poz., rys., tab., wykr.

Twórcy

autor

Gaspar S.

• Faculty of Manufacturing Technologies of the Technical University of Košice with the seat in Prešov, Slovak Republic

autor

Majernik J.

• Institute of Technology and Business in České Budějovice, Czech Republic

autor

Trytek A.

• The Faculty of Mechanics and Technology in Stalowa Wola, Poland

autor

Podaril M.

• Institute of Technology and Business in České Budějovice, Czech Republic

autor

Benova Z.

• Institute of Technology and Business in České Budějovice, Czech Republic

Bibliografia

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