We use the method of gravity casting China in manufacturing casting parts from non-ferrous materials such as aluminum or low-temperature alloys. For a wide range of industrial applications in the defense, medical and energy sectors the process is used to create intricately shaped components. It involves pouring molten metal into a pre-formed cast iron block which is fully machined to produce the die under the force of gravity.
Gravity die casting is a form of die casting that is
a great option for creating repeatable medium- and high-volume parts. We refer
to this process as permanent mold. Compared to high-pressure die casting it is
quite different and is used for parts that have higher structural requirements,
are slightly heavier, and larger.
In manufacturing, gravity die casting is an
effective and versatile means of quickly creating parts. In the case of other
forms of die casting, with the help of a mold cavity molten metal is formed
into a shape. In producing the same part this method allows a single set of
dies to be reused indefinitely. This is fortunate as the cost of the metal dies
and casting machinery can be very high. Because of their excellent surface
finish and strength gravity casting manufacturer make use of this
technique.
Here we will look at the process and the advantages
of this technique.
In gravity die casting there are four main steps
involved. At first, the two halves of the die are heated and sprayed with a
coating before being clamped together.
Premature solidification is prevented with the help
of lubrication and it also helps in the removal of the casting.
Into the cavity of the die, the pouring of the
molten metal is done. Before it is allowed to cool the metal solidifies at a
rapid rate. At last, the die is opened and the removal of cast parts is done.
Compared to equivalent manufacturing processes there
are various key benefits which include:
- It offers
excellent durability and dimensional stability.
- versatility
– we can engineer complex and simple shapes
- high
production rates - in a single day many hundreds of castings can be
produced
- It helps in the production of smooth or textured surfaces.
- Gravity casting process provides higher tensile strength and improved mechanical properties when compared with sand casting.
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