Abstract
Aluminum alloy A5E was selected as a matrix of high-strength aluminum wrought alloys, and copper M0 and M1 grades was chosen as an alloying element. As a result of comprehensive studies, a technology for casting aluminum wrought alloys of the Al-Cu-Fe-Si system was developed, and optimized casting modes for aluminum wrought alloys with a copper content of 5,7...6,5% were substantiated and selected, according to which the temperature of casting the melt should be within 730 ± 100С, the temperature of the mold is 120 ± 100С, while the fluidity is 430 mm, linear compression is 1,6...1,65%, HB = 1230...1250 MPa, σв = 415...420 MN / m2, δ = 6...7%. It is shown that the casting properties of aluminum alloys, such as fluidity, linear shrinkage and liquation, strongly depend on the chemical composition of the alloy, its structure, liquidus and solidus temperatures, heat capacity, thermal conductivity, etc.
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