Get to Know about the High Pressure Die Casting


Economical quantity production of castings is enabled by High pressure die casting at a rapid rate. These castings are characterized by a good surface finish and high dimensional accuracy and can comprise of various recesses, screw threads, and holes.

Zinc die casting requires little or no surface finishing and enables the good economy of metal. Consisting of forcing molten metal into the die or a mold, the principal on which pressure die casting is based under considerable pressure.

In a crucible inside the machine, the metal is kept the liquid in the hot chamber machines and the metal bath, the pressure chamber that delivers the metal into the die is located. This machinery can be operated pneumatically or more usually by the action of a ram, develop the pressure.

In a holding furnace, the casting metal for a cold chamber the machine has kept the liquid from which employing a special automatic device or a scoop is forced into the die by the means of ram it is transferred to the pressure chamber.

For high rates of production of zinc die casting part, fully automatic machines are more commonly employed some simple machines are hand-operated.

Precision made dies of intricate multipart design in pressure die casting, and therefore to severe working conditions, very expensive are exposed by high successive and high pressures variations in temperature used.
The dies may be made of unalloyed steel for the production of zinc alloy and zinc castings however the dies from zinc die casting manufacturer are generally made of hot-work steel for the alloys of these metals, aluminum, magnesium, and copper, which has much greater durability.

Vacuum die casting is another development in high pressure dies casting. It produces castings which as compared to ordinary high-pressure castings have an even better finish.

There are two systems, the holding furnace is either installed under the casting machine or the die is enclosed in a hood which evacuates the air so that the metal is compacted in it and sucked into the die on the evacuation of the air from the die. Based on this principle has been developed, this is a process for making iron castings.

Location: Zhen An Dong Lu, Dongguan Shi, Guangdong Sheng, China

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