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Some of the products made
using Gravity Die casting process are Housings, Junction boxes,
impellers, Valve bodies, Flanges, Manifolds, Actuator bodies,
Compressor parts, Electrical fittings parts, Covers.
Permanent mould casting get their name from the fact that the
process utilizes permanent metal moulds instead of temporary sand
moulds for the casting process. Cast iron is the most commonly used
mould materials as it offers great reliability during casting. The
cores are made from other metals or sand. The cavity surfaces of the
moulds are coated with fine layers of materials that have good
heat-resistant properties such as clay or sodium silicate.
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Gravity Die Casting |
The moulds used in casting are
pre-heated upto 200 ºC (392 ºF) before the molten metal is
poured into the cast cavity. Casting has to be done with care in order
to ensure that proper thermal balance in maintained throughout the
casting process. This is done through a variety of ways including
external cooling techniques using water or relevant radiation
techniques.
Permanent mould casting, while not offering the same level of design
flexibility and ease pattern usage as sand castings, it has the
advantage of offering relatively lower design and development costs as
well as production costs. At VJP, we have the expertise to undertake
permanent mould castings of complex components of diverse application in
various industries. |
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