Technological problems of modifying of structure of silumin castings. Solutions

Author:

Marukovich E. I.1,Stetsenko V. . Yu.1

Affiliation:

1. Institute of Technology of Metals of National Academy of Sciences of Belarus

Abstract

It is shown that the main technological problems of modifying of structure of silumin castings are: absence of the universal modifiers, limitation of their action in time; saturation of a melt by hydrogen and oxide of silicon. Admixture modifiers do not solve these problems. These problems could be solved by method of hereditary modifying. For this purpose it is necessary to use the silumin castings with a high-dispersible microstructure received by casting in a crystallizer with a high speed of cooling.

Publisher

Belarusian National Technical University

Subject

Pulmonary and Respiratory Medicine,Pediatrics, Perinatology, and Child Health

Reference6 articles.

1. Zadruckij S. P., Nemenenok B. M., Korolev S. P. i dr. Rafinirovanie i modificirovanie alyuminievyh splavov [Refinement and modifying of aluminum alloys]. Litejnoe proizvodstvo = Foundry production, 2004, no. 3, pp. 17–20.

2. Svojstva ehlementov. Fizicheskie svojstva: spravochnik [Properties of elements. Physical properties: reference]. P. 1. Moscow, Metallurgiya Publ., 1976. 600 p.

3. Stroganov G. B., Rotenberg V. A., Gershman G. B. Splavy alyuminiya s kremniem [Aluminum alloys with silicon]. Moscow, Metallurgiya Publ., 1977. 272 p.

4. Boom E. A. Priroda modificirovaniya splavov tipa silumin [The nature of modifying of alloys like silumin]. Moscow, Metallurgiya Publ., 1972. 72 p.

5. Vahobov A. V., Ganiev I. N. Stroncij – ehff modifi siluminov [Strontium – the eff modifi of silumins]. Litejnoe proizvodstvo = Foundry production, 2000, no 5, pp. 28–29.

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