Wednesday, 24 June 2015

The Benefits of Zinc Alloy Die Casting

Die casting is a manufacturing process that involves forcing high pressure molten metal through a mold and then instantly cooling it. This method is very useful for creating many machine parts and accessories. A number of metals and metal alloys are used in the die casting process. Each material has its own set of advantages, disadvantages and applications. The manufacturer identifies the right type of material to use based on the properties expected from the end product.

Of all the metals used for die casting, zinc alloy is the most preferred for its economical properties. This metal alloy is easy to cast and also offers durable use. Moreover, this material is highly ductable and can be easily plated on any surface. Zinc alloy die casting is very sturdy and has a high impact strength.

It is generally used in the cold chamber die casting technique. In this technique, zinc alloy is melted in a separate furnace and then poured into a cold chamber from where it is moved into casting. As it has a low melting point, zinc alloy can also be used in hot chamber method, if required. This versatility makes it the best choice for most manufacturing processes. As this material has a low casting temperature, its thermal shock is less, which results in longer tool life. Another advantage of this low casting temperature is that it reduces energy use, and makes it more ecofriendly.

Another benefit of zinc alloy die casting is that it can be made into casts with very thin walls. Plus, the cast surface is very smooth, and can be easily plated or painted upon. These alloys have a matt anti-sparkling finish, which makes them a good choice for use in refineries, tankers and coal mines. The machining characters of zinc reduce normal wear and tear. So, parts cast with this alloy can be used longer and deliver better performance.

Most manufacturers prefer to use zinc alloy die casting technique as the material has high dimensional stability, hardness as well as good thermal and electrical conductivity. Plus, its self-lubricating properties make it a good option for manufacturing pinons and gears. Its excellent bearing properties make it suitable for industrial applications.

The best part of using zinc alloy in various manufacturing processes is that it is clean and recyclable. The alloys are zinc are not toxic or harmful to the environment. So, the scraps can be recycled and used again. 

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