Zinc die casting manufacturers are highly
popular for making parts in building and industrial fields, but its most common
application is in automotive industry. In fact, cars have different parts that
can be crafted through die casting, so much so that the modern process of die
casting originally started for automotive industry.
Die casting is a very versatile and cost
effective process for components requiring high yearly volumes and complex
geometries. Typically, the zinc die casting process is considered when yearly
volumes reach at least 15,000 parts.
Lesser volumes may require other zinc casting processes such as sand
casting or graphite permanent molding.
Die casting is a net-shape process, and cost savings can be achieved by
eliminating secondary machining and assembly operations required by other
processes. Often, when converting
components to zinc die castings, the assembly can be redesigned to allow the
consolidation of multiple parts to one net shape die cast component.
There are two processes done by Zinc diecasting manufacturers: Hot Chamber and
Cold Chamber.
The
Hot Chamber process is used for alloys with low melting temperatures and a low
attack rate on steel components. This process is used for most of the zinc die casting alloys, and is
more economical. In this process, the
metal pump (gooseneck) is immersed in the molten zinc alloy (thus the name
"hot chamber"), pumping metal directly from the furnace to the
die. Advantages include faster cycle
times, smaller runner systems (and resulting air in the process) and lower
processing costs compared to the cold chamber process.
One
the other hand, cold chamber zinc die casting process there is often no need of
further machining after casting: not only its
accuracy is up to 99.8%, but casted products also can be used raw, since they
have a pleasant finish. Zinc die casting manufacturers use is almost 28% in
automotive industry, followed by building and hardware sectors.
Zinc has become one of the most
important metals in automotive parts industry, especially for products like
door lock housing, pawls, retractor gears and pulleys in seat belt system, but
also for the camshaft and sensor components. By using this metal and its
alloys, it is possible to reach a strength, ductility and malleability that
will not be possible with other materials.
Moreover, zinc can be the right choice
to obtain high quality aesthetic components, with strict tolerances impossible to achieve with
other materials, and to obtain embossing and grooves for mechanical or gear
components.
As said before, automotive industry is
the most common application of die casting: by using zinc and its alloys is
possible to produce components capable of reaching high aesthetic quality ,
with strict and narrow tolerances for shapes morphology. Zinc alloy is also
used for plating purposes because of its many benefits, such as enhancing the
already impressive anti-corrosion zinc properties.
Comments
Post a Comment