ALUMINIUM BOTTLE WITH NECK THREAD PRODUCED BY IMPACT EXTRUSION PRESSING, MADE OF RECYCLED ALUMINIUM AND REINFORCED ALLOYS Russian patent published in 2018 - IPC B21C23/18 B65D1/02 B65D41/04 C22C21/02 C22F1/43 

FIELD: metallurgy.

SUBSTANCE: production method of impact extrusion pressing of metal bottle with thread for beverages includes production aluminium alloy blanks mixed from scrap aluminium alloy and relatively clean aluminium alloy. Said aluminium alloy scrap contains: between about 0.20 wt % and about 0.32 wt % Si, between about 0.47 wt % and about 0.59 wt % Fe, between about 0.10 wt % and about 0.22 wt % Cu, between about 0.78 wt % and about 0.90 wt % Mn, between about 0.54 wt % and about 0.66 wt % Mg, between about 0.06 wt % and about 0.18 wt % Zn, between about 0.00 wt % and about 0.08 wt % Cr, between about 0.00 wt % and about 0.08 wt % Ti, deforming said blank into a preferred shape by the method of pressing - by impact extrusion to form said metal bottle and forming a thread on the neck portion of said metal bottle. Said thread is configured to receive a threaded cover which can optionally be opened and closed after filling the metal bottle with beverage.

EFFECT: producing the bottle blank with strength characteristics sufficient to enable threading on the bottle neck designed to be screwed onto such threaded neck of the threaded cover.

21 cl, 12 tbl, 13 dwg