Release coating for obtaining sand‑resin rods manufactured using heated tools
https://doi.org/10.21122/1683-6065-2025-2-46-51
Abstract
The article presents the results of research on the development of the lubricant composition for the production of sand‑resin rods over a heated tooling with high technological and consumer properties. It has been established that the conditional viscosity of the developed lubricant compositions decreases when oleic acid is added to the polymethylsiloxane liquid in an amount of 5 to 25 % from 10 to 8 s, and the density of lubricants is reduced from 908 to 882 kg/m3. It has been established that when oleic acid is added to the base in an amount of 15 %, the sedimentation stability of the lubricant is increased by more than 30 times. It is shown that the developed lubricant composition has the best lubrication characteristics at the following component ratio: base (polymethylsiloxane liquid PMS 300) 15 %, additive (oleic acid) 15 %, surfactant 3,0 %, water – the rest. The results of the research can be used by the process engineers when choosing the composition of the lubricant for making rods by the heated tooling.
About the Author
A. A. Pivovarchyk
Yanka Kupala State University of Grodno
Belarus
Belarus
Grodno, Belarus, 22, Ozheshko str.
References
1. Kukuj D. M., Skvorcov V.A., Ectowa V. N. Teorija i tehnologija litejnogo proizvodstva [Theory and technology of foundry]. Мinsk, PRO design Publ., 2010, 416 p.
2. Mihaltzov A. M., Rozum V.A., Pivovarchyk A.A. Vodojemul’sionnye smazki dlja press‑form lit’ja pod davleniem [Water‑emulsion lubricants for press‑modes of casting under pressure]. Lit’e i metallurgija = Foundry production and metallurgy, 2005, no. 4, pp. 104–105.
3. Mihaltzov A. M., Pivovarchyk A.A., Kuryan A. G. Vodojemul’sionnye razdelitel’nye pokrytija dlja izgotovlenija sterzhnej po nagrevaemoj osnastke [Water‑emulsion separating coverings for production of bars by heated mounting]. Lit’e i metallurgija = Foundry production and metallurgy, 2007, no. 2, pp. 178–179.
4. Mihaltzov A. M., Pivovarchyk A.A., Panasyugin A. S. Issledovanie jekologicheskoj bezopasnosti smazok dlja lit’ja pod davleniem aljuminievyh splavov [Investigation of ecological safety of lubrications for casting under pressure of aluminium alloys]. Lit’e i metallurgija = Foundry production and metallurgy, 2008, no. 1, pp. 133–135.
5. Mihaltzov A. M., Pivovarchyk A.A., Subota A.A. Gazotvornost’ razdelitel’nyh pokrytij dlja press‑form lit’ja aljuminievyh splavov pod davleniem [Gas‑creation of separating coverings for moulds for die casting of aluminium alloys]. Lit’e i metallurgija = Foundry production and metallurgy, 2010, no. 4, pp. 85–89.
6. Mihaltzov A. M., Pivovarchyk A.A., Rozum V.A. Razrabotka vodojemul’sionnyh smazok dlja press‑form lit’ja pod davleniem [Development of water‑based lubricants for injection molds]. Litejnoe proizvodstvo = Foundry production, 2006, no. 3, pp. 15–16.
7. Mihaltzov A. M., Pivovarchyk A.A., Slepneva L. M. Razrabotka kompleksnogo komponenta na osnove kremnijorganicheskih polimerov dlja press‑form lit’ja pod davleniem [Development of complex oiling component on the basis of silicone polymers for molds for casting under pressure]. Lit’e i metallurgija = Foundry production and metallurgy, 2008, no. 1, pp. 129–133.
8. Pivovarchyk A.A., Slepneva L. M., Rozum V.A. Razrabotka razdelitel’nyh pokrytij na osnove kremnijorganicheskih materialov dlja press‑form lit’ja pod davleniem [Development of separation coatings on the basis of organosilicon materials for die‑casting molds]. Litejshhik Rossii = Foundry production, 2007, no. 1, pp. 36–40.
9. Mihaltzov A. M., Pivovarchyk A.A., Dyatlovsky S. K. Materialy razdelitel’nyh pokrytij press‑form lit’ja aljuminievyh splavov pod davleniem [Materials of separation coatings of die‑casting molds of aluminum alloys under pressure]. Litejshhik Rossii = Foundry production, 2012, no. 7, pp. 33–40.
10. Pivovarchyk A.A., Mihaltzov A. M. Formirovanie sloja razdelitel’nogo pokrytija na poverhnosti press‑formy pri lit’e pod davleniem [Forming a parting layer of coating on the surface of the mould during die‑casting]. Lit’e i metallurgija = Foundry production and metallurgy, 2015, no. 1, pp. 62–65.
11. Mikhaltsov А. М., Pivavarchyk A.A. Issledovanie adgezionnoj sposobnosti smazok na osnove kremnijorganicheskih polimerov dlja lit’ja pod davleniem aljuminievyh splavov [Investigation of adhesion capability of lubricants on the basis of organicsilicon polymers for casting of aluminium alloys under the pressure]. Lit’e i metallurgija = Foundry production and metallurgy, 2007, no. 1, pp. 131–133.
12. Mihaltzov A. M., Pivovarchyk A.A. Jerozionnaja stojkost’ smazok pri izgotovlenii otlivok iz aljuminievyh splavov metodom lit’ja pod davleniem [Erosion resistance of lubrications at production of castings of aluminium alloys by means of casting under pressure]. Lit’e i metallurgiya = Foundry production and metallurgy, 2008, no. 2, pp. 47–50.
13. Mihaltzov A. M., Pivovarchyk A.A. Issledovanie adgezionnoj sposobnosti smazok na osnove kremnijorganicheskih polimerov dlja lit’ja pod davleniem aljuminievyh splavov [Investigation of the adhesiveness of lubricants based on organosilicon polymers for die casting of aluminum alloys]. Litejshhik Rossii = Foundry production, 2007, no. 7, pp. 11–13.
14. Mihaltzov A. M., Pivovarchyk A.A. Nakoplenie razdelitel’nyh pokrytij na rabochej poverhnosti tehnologicheskoj osnastki pri lit’e pod davleniem aljuminievyh splavov [Accumulation of separation coatings on the working surface of the tooling when casting aluminum alloys under pressure]. Metallurgiya: Respublicanskij mezhvedomstvennyi sbornik nauchnyh trudov = Metallurgy: Republican interdepartmental collection of scientific works, Minsk, BNTU Publ., 2007, vyp. 31, pp. 179–189.
Review
For citations:
Pivovarchyk A.A. Release coating for obtaining sand‑resin rods manufactured using heated tools. Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY). 2025;(2):46-51. (In Russ.) https://doi.org/10.21122/1683-6065-2025-2-46-51
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