Provide better quality foundry products and services to the customer to meet their
requirements in time.
V-square Foundry Products
V-square Foundry Products started its
operations in 2010 in Pune as Dealer for
Vesuvius India Ltd. & today’s Foseco India
Ltd for Silicon carbide crucibles & stands
as well as Foundry fluxes,chemicals, transfer
laddles & Degasing units .
Who we are?
V-square Foundry Products is a major
trading organization providing silicon carbide crucibles and foundry fluxes and dycotes in
Maharashtra. We offer complete technical guidance to nonferrous foundries for selection of
crucibles, as well as advantages of using Foseco fluxes, crucibles & stands.
1 HANDLING: Never roll crucibles on the floor for transportation. Any damage of the protective
surface glaze leads to accelerated oxidation, which in turn, promotes loss of strength and
2 PRE-HEATING: Crucible preheating is one of the most important aspects to prolonging crucible
life. Many times, damage is done to the crucible during pre-heat that is not evident until well
into the crucible /melting campaign. Never fire a crucible while curing the furnace refractories.
The varying temperature ranges will oxidize the crucible bonds. Crucible should be brought up to
about 200®C for 30 minutes empty. This step is to drive off any moisture that the crucible could
have been exposed to. After this crucible should be taken up to 800®C to 900®C as rapidly as
the furnace will take it, and then brought down to operating temperature. The crucible then
should be charged with metal (ingots /liquid).
3 CHARGING: Place large metal ingots vertically into the crucible. Make sure that there is
adequate clearence between metal ingots and crucible wall. Do not wedge cold metal ingots
horizontally inside the crucible. During heating, the metal will expand and cause bursting of the
crucible. On no account should metal ingots be thrown into the crucible, as this will damage rim
and wall of the crucible. Metal ingots or other heavy metal pieces should be placed carefully
into the crucible using special tongs.
4 CLEANING: Proper dross removal is very important. The crucible should be thoroughly
scrapped after the first heat while still hot. Subsequently, the crucible should be scraped at the
end of each day. A proper tool that has rounded edges and a curvature similar to the inner wall
of the crucible should be used to clean the crucible. Slag/dross is harmful to crucible life. When
heated, slag can expand ten times that of the crucible, causing cracking. Slags also contain flux
material and increase the danger of the flux attack. Dross is an insulator. The deposits will
cause longer melt times, higher fuel consumption and reduce crucible capacity. This insulation
will lead to oxidation and cracking.