Methods of Rolled Copper Wire Properties Improvement

Zoya Duriagina
Khristyna Dvorianyn kdvoryanyn [at] gmail.com
Sergiy Shvachko
Eduard Pleshakov
Tetiana Tepla
  1. Chair of applied materials science and treatment of materials Lviv Polytechnic National University, 79040, Ukraine, Lviv, S. Bandery street 12.
Abstract 

Hot cracks of rolled copper are the most wide spread type of discards under continuous casting which are eliminated with difficulty. In industrial production of rolled copper wire at the plants of Ukraine the amount of oxygen in the obtained rods does not exceed the standard values. In this paper it is proposed to subject the melt to ultrasonic treatment to degassing process and the formation of homogeneous, dispersive sub dendrite structure of the rolled copper.

Keywords 
rolled copper
hydrogen
hot cracks
wire
pores
References 
  1. Bochvar A. A., Dobatkin V. I. “O temperaturnoj krivoj nachala linejnoj usadki binarnyh splavov” [“About the beginning of the temperature curve linear shrinkage of binary alloys”]. Izvestija AN SSSR. Otdtelenie tehnicheskih nauk, 1945, № 1-3, pp. 3-6.
  2. Bochvar A. A., Sviderskaja Z. A. “O razrushenii otlivok pod dejstviem usadochnyh naprjazhenij v period kristallizacii v zavisimosti ot sostava splava” [“Blow moldings under the action of shrinkage stress during crystallization, depending on the alloy composition”]. Izvestija AN SSSR. Otdtelenie tehnicheskih nauk, 1947, № 3, pp. 349-355.
  3. Dobatkin V. I., Jeskin G. I. “Nedendritnaja struktura v slitkah legkih splavov” [“Dendritic structure in light alloys ingots”]. Cvetnye metally, 1991, №12, pp. 64-67.
  4. Jeskin G. I. “Ul'trazvukovaja obrabotka rasplavlennogo aljuminija” [“Ultrasonic treatment of molten aluminum”]. Moskva, Metallurgija, 1965, 224 s.
  5. Plochikhine V., Karkhin V., Bergmann H. W. Grain Structure, Microstructure and Texture of Copper Ingots Produced during the Continuous Casting Process // Proc. International Congress «Cotinuous Casting» held from 13-15 November 2000 in Frankfrurt/Main, P.109-114.