Casting Techniques: Pressure Die Casting
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The original fuel fitting design was an assembly of three screw-machined components–a brass orifice, an aluminum stop block and lock mount, and a stainless steel hose barb. By redesigning the assembly as a one-piece zinc die casting, a 56 percent cost reduction was...
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For this design, a series of machined stainless steel air valve spacers were replaced with zinc die castings. Because of the spacer’s large flow areas, engineered plastics do not have the required strength to maintain shape and rigidity. Die cast ZA-8 was chosen for...
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Automatic closing mechanisms for swing doors have to be adjustable and brake the movement of the door. The mechanism must be strong, resistant, reliable, and compact enough to be housed in a casing. Pressure injected zinc alloy casings offer undeniable advantages,...
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Cost savings were the initial reason for converting a number of steel stampings into this single zinc die casting. The surface flatness and dimensional precision between features such as fixing studs was greatly improved, this permitted more reliable assembly of...
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Zinc die cast household gas expanders are often unnoticed but have performed reliably for more than 40 years, even as requirements have become stricter. Zinc castings allow meeting of the pressure tightness specification, which is that the assembly is pressure tight...