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Zamak alloys are part of the zinc aluminium alloy family; they are distinguished from the other ZA alloys because of their constant 4% aluminium composition. [ 2 ] The name zamak is an acronym of the German names for the metals of which the alloys are composed: Zink (zinc), Aluminium , Magnesium and Kupfer (copper). [ 2 ]
This is a list of named alloys grouped alphabetically by the metal with the highest percentage. Within these headings, the alloys are also grouped alphabetically. Some of the main alloying elements are optionally listed after the alloy names.
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The oldest known pills were made of the zinc carbonates hydrozincite and smithsonite. The pills were used for sore eyes and were found aboard the Roman ship Relitto del Pozzino, wrecked in 140 BC. [79] [80] The Berne zinc tablet is a votive plaque dating to Roman Gaul made of an alloy that is mostly zinc. [81]
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A die-cast toy (also spelled diecast, or die cast) is a toy or a collectible model produced by using the die-casting method of putting molten lead, zinc alloy or plastic in a mold to produce a particular shape. Such toys are made of metal, with plastic, rubber, glass, or other machined metal parts.
ZA alloys make good bearings because their final composition includes hard eutectic zinc-aluminium-copper particles embedded in a softer zinc-aluminium matrix. The hard particles provide a low-friction bearing surface, while the softer material wears back to provide space for lubricant to flow, similar to Babbitt metal .
An emergency kit, disaster bag, bug-out bag (BOB), [4] [5] [6] also known as a 72-hour kit, [7] GOOD bag (get out of Dodge), [8] [9] personal emergency relocation kit (PERK), go-bag, survival backpack, or quick run bag (QRB) [10] [11] is a portable kit containing items that would help a person to survive for 72 hours [12] during an escape or ...