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| Gargi Sleeves are designed to provide effective
feeding of metal by extending the solidification time of risers
used on Steel, SG Iron, Grey Iron castings. Whereas exothermic
sleeves are designed to initiate an exothermic reaction in the
riser thus liberating heat, insulating sleeves provide an
efficient thermal insulating layer thereby conserving the heat
in the riser over an extended period. |
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| Vacuum moulded, their
composition is carefully formulated from high grade insulating /
exothermic materials, bonded with organic and inorganic binders
to provide strong, durable sleeves resistant to pressures
obtainable during ramming of sand in the foundries.
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| GARGI INSULATING & EXOTHERMIC SLEEVES are
recommended for use on riser diameters from 25 mm to 350 mm.
GARGI SLEEVE BLINDERS are merely covers, which can be placed on
open exothermic sleeves rendering them into blind sleeves. GARGI
CONES are used along with Sleeves, which are placed under the
sleeves. Size range available from 125mm to 300 mm. These are of
matching dimensions such as the Outer Diameter and thickness of
the Sleeves for which it is matched. The composition of the
material is also the same as of the exothermic sleeves. |
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All sizes are available to match open exothermic sleeves. If
you are interested in a specific size for any of the above
products, please do get in touch with us. In view of increase in
demands made by the engineering, chemical and automotive
industries, for better quality of castings involving various
non-destructive tests i.e. radiography, ultrasonic, etc. Gargi
has developed special sleeves for use in the manufacture of high
integrity castings. These sleeves ensure a sustained exothermic
reaction over a longer duration, thus ensuring the heat in the
riser over an extended period. For consistent results please
ensure that hot topping compound Gartop 717 is used along with
these sleeves. |
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HEX Exothermic Sleeves |
| In its quest for continuous improvement of
service to the customers, GARGI has developed a range of highly
exothermic risers sleeves with a unique internal profile of
equally placed vertical V shape. This profile results in
extending solidification time of the sleeve risers by directing
more heat to the centre of the risers. The final result, most
interesting to the foundry man, is higher yield on the castings. |
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OVAL Exothermic Sleeves |
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Having determined the size of the riser on a casting, the
next step is to decide the number of risers to be provided to
ensure a good casting. The region of the casting, which can be
fed by a single riser, is known as feeding area or feeding
range. It is necessary to place a single riser within one
feeding area. A second riser would not only be wasteful, but in
certain circumstances, would even be even harmful.
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