FIELD: metallurgy.
SUBSTANCE: invention can be used for manufacture of cast product for high-frequency communication tool formed with high-frequency waveguide and obtained by pressure casting of high-precision alloy containing aluminium, silicon and zinc. The above waveguide has the hole providing input and output of high-frequency signal and obtained without conicity. Hole can be made without secondary machining.
EFFECT: obtaining high-quality alloy.
9 cl, 1 dwg, 3 tbl, 13 ex
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