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Model Car Die-Casting

In die-casting model cars molten metal is injected into a mould at high pressures. Set-up time for dies is 1-2 hours, after which production rates of 20–200 pieces per hour-mold are normally obtained. Maximum mass limits for magnesium, zinc, and aluminium parts are roughly 4.5 kg, 18 kg, and 45 kg, respectively; the lower limit in all cases is about 30 g. Die injection machines are generally large (up to 3 × 8 m) and operate at high pressures — 100 Megapascal/cm2) and higher, although aluminium usually is processed at lower pressure.

A well-designed unit produces over 500,000 castings during the production lifetime of a single mold. The major production step is die construction, usually a steel alloy requiring a great deal of skill and fine tooling to prepare. Mostly non-ferrous materials are die-cast, such as aluminium, zinc, magnesium, and copper-based alloys.

This is the process used in the production of certain toys, notably that of diecast model cars.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article Die-casting

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