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Permanent Mould Process involves manufacture of Grey Iron
castings in Grey Iron moulds. Component cavities are accurately
copy milled on mould blanks by using CAD/CAM. Metal is melted
in hot blast cupola of 5 T / Hr capacity. Dies are mounted
on the rotating carousels and the molten metal is poured.
The castings produced are then annealed, finished, inspected
and despatched to the customers. |
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The
Permanent Mould Castings produced in our foundry have the
advantages of consistent
dimensions over large volumes of production, easy machinability,
dense, non-porous structure, very close dimensional tolerances
and high degree of pressure tightness ideal for hydraulic
applications. |
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| General
Information : |
| Capacity |
14000
MT per year |
| Casting
weight (approx.) |
0.2
to 8 Kgs. |
Limiting
size of castings (LXBXH)
|
300
x 250 x 50 mm |
| Mechanical
properties : |
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Tensile: |
12
to 20 Kgs per sq.mm
(Depending on section thickness) |
| Hardness:
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170
to 217 BHN (3000/10) |
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Typical Industries:
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| Automotive,
Refrigeration & air-conditioning industries. |
| Typical
Products: |
| Wheel
cylinders, Master cylinders - Brake and Clutch, Tractor
brake discs, Tractor lift cylinders, Housings, Pulleys,
Bearing covers, Pump housings, Oil seal retainers, Compressor
bodies, Cylinders and Crank shaft |
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Specification : |
| Elements |
Chemical
composition % |
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| Total
carbon |
3.45
- 3.75 |
| Silicon
|
2.40
- 2.70 |
| Manganese
|
0.60
- 0.90 |
| Sulphur
|
0.12
( max) |
| Phosphorus
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0.40
- 0.60 |
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| Microstructure
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Predominantly undercooled graphite (Type D &
E) in a ferritic matrix. |
| Phosphide
eutectic in a discontinuous fashion. |
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