This paper reports the analysis of studies on the use of secondary copper for the production of articles based on it, namely the contact wire for electric transport. The effect of the drawing step on the macro- and microstructure and physical and mechanical properties of the copper wire was studied. The optimal draw pitch for continuous copper casting is 8.2 mm. At a temperature of the melt (casting) of 1200 °C and a draw step of 8.2 mm, the average crystallization rate is ~300 °C/s. This provides sufficient time for crystallization, and with such parameters, the heat transfer from the metal receiver does not have a noticeable effect on the structure. At the same time, it was established that Mg is a modifier for liquid Cu while all other elements do not have such an effect and form solid solutions with copper. It is shown that the increase in the concentration of silver from 0.082 at% to 0.092 at% led to an increase in specific electrical resistance by 0.582 %. As for other elements, namely, iron, the change in its amount from 0.002 at% to 0.005 at% increased the specific resistance of copper by 1.733 %. The change in nickel concentration from 0.024 at% to 0.036 at% and tin from 0.0010 at% to 0.0035 at% led to its growth by 2.927 % and 1.269 %, respectively
Оцінка швидкості охолодження розплавів на основі кольорових металів А. М. Верховлюк, доктор технічних наук, старший науковий співробітник, vam@ptima.kiev.ua В. Л. Лахненко, кандидат технічних наук, старший науковий співробітник, lakhnenko@ptima.kiev.ua Р. В. Петровський, аспірант І. Ф. Червоний, доктор технічних наук, професор Фізико-технологічний інститут металів та сплавів НАН України, Київ Представлено методику дослідження швидкості охолодження розплаву на прикладі сплаву системи Cu -Zn. Ключові слова: криві охолодження, сплав, лиття, кристалізація, технологія. Îäåðaeàíî 14.11.18 À. Ì. Âåðõîâëþê, Â. Ë. Ëàõíåíêî, Ð. Â. Ïåòðîâñêèé, È. Ô. ×åðâîíûé Îöåíêà ñêîðîñòè îõëàaeäåíèÿ ðàñïëàâîâ íà îñíîâå öâåòíûõ ìåòàëëîâ Ðåçþìå Ïðåäñòàâëåíà ìåòîäèêà èññëåäîâàíèÿ ñêîðîñòè îõëàaeäåíèÿ ðàñïëàâà íà ïðèìåðå ñïëàâà ñèñòåìû Cu -Zn. Êëþ÷åâûå ñëîâà: êðèâûå îõëàaeäåíèÿ, ñïëàâ, ëèòüå, êðèñòàëëèçàöèÿ, òåõíîëîãèÿ. A. M. Verkhovliuk, V. L. Lachnenko, R. V. Petrovsky, I. F. Chervony Estimate of cooling rate of melts based on non-ferrous metals SummaryThe method of studying the rate of cooling of the melt on the example of a Cu -Zn alloy is presented.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2025 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.