Along with the moulds, the pouring system is the key to good performance
of a casting system. Get the pouring right, and many downstream
problems can be avoided.
Ingotech manufacture various pouring mechanisms, and select the
most appropriate system for each application:
A rotating cast iron star-wheel is directly driven by the passing
moulds, ensuring synchronised pouring. By pouring through two
outlets (one each side of the wheel) into the same mould the rate
of metal flow in each outlet is halved. This minimises turbulence
and dross, allowing top quality ingot to be produced at higher
We have developed a range of star-wheels to suit different ingot
sizes, along with a range of launder sections specifically designed
to deliver metal into our star-wheels with minimal turbulence.
Molten metal filtration and flow control can also be incorporated
into the machine construction.
Aluminium deoxidant shapes
A pouring tray mounted across the conveyor is rocked in time with
the passing moulds by a cam on the output of a heavy duty gearbox
of our own design. This is driven from the conveyor tail-shaft.
A former is provided to create a uniform shape within the refractory
lining of the tray to minimise turbulence, allowing faster casting
Zinc and lead ingot
Star-wheel systems, principally the same as for Aluminium Ingots
are used. Alternatively, a multi-spout pouring bowl is mounted
on the side of the casting machine. It is driven by a heavy duty
gearbox, of our manufacture, and pours ingots individually as
the moulds pass.
Copper and brass ingot
A single spout, refractory lined bowl is mounted on the side of
the machine and driven by the heavy duty gearbox. Separate drives
for tracking the passing moulds and tilting the bowl ensure cut-off
of metal flow between ingots.