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In vacuum assisted high pressure die casting, a.k.a. vacuum high pressure die casting (VHPDC), [33] a vacuum pump removes air and gases from die cavity and metal delivery system before and during injection. Vacuum die casting reduces porosity, allows heat treating and welding, improves surface finish, and can increase strength.
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.
The die casting process forces molten metal under high pressure into mold cavities (which are machined into dies). Most die castings are made from nonferrous metals, specifically zinc, copper, and aluminium-based alloys, but ferrous metal die castings are possible. The die casting method is especially suited for applications where many small to ...
Creative Master Northcord Ltd – highly detailed die-cast bus models in 1:76 scale. Crescent Toys – British manufacturer of die-cast models, sometimes marketing DCMT toys. Often 1950s & 1960s race cars. Boxes are reminiscent of Italian Mercury with illustrations [21] Crown Premiums – Manufacturers of mint die-cast collectibles. Mostly 1:24 ...
Semi-solid metal casting (SSM) is a near net shape variant of die casting. [1] The process is used today with non-ferrous metals, such as aluminium , copper , [ 2 ] and magnesium . It can work with higher temperature alloys that lack suitable die materials.
Die casting works by forcing molten metal alloy inside a reusable mold, then opening the mold to remove the finished piece after it cools and solidifies. The opened mold is cooled to 185 °C (365 °F) and cleaned by robots, and fresh molten aluminium is prepared for the next cycle to begin 1‒2 minutes after the first cycle.