The perfect match where 1 + 1 results in more than 2
UPCAST® Hybrid continuous casting lines are available for combined rod and tube production for capacity optimization.
Easy to manage process.
Small footprint of the equipment
Low investment & production costs Stepwise expansion of production capacity
Efficient downstream production due to high coil weight.
The “Cast” portion consists of UPCAST®-SGTube technology while ASMAG GmbH provides the equipment for the “Draw” portion including machinery for straight drawing and annealing.
By combining their respective know-how and expertise the two companies can offer unprecedented savings for the copper tube industry.
UPCAST OY and ASMAG GmbH have joined forces to supply Cast&Draw — a smooth and cost effective process delivering semi-finished C&D copper tubes.
Cast&Draw takes cost-efficiency to new heights
UPCAST OY is the exclusive supplier of the original UPCAST® technology well-known within the global wire & cable industry for high conductivity copper rod production. With the introduction of UPCAST®-SGtube – an established extension of this innovative technology – the process has also been applied to the casting of thin-walled copper tube.
All inbuilt characteristics of the baseline
UPCAST® technology - low investment & lifetime costs, flexibility in operation, unique upgradability and small environmental footprint – are also at the disposal of copper tube manufacturers.
ASMAG GmbH has for decades been serving both the steel and non-ferrous industry. The company is known for its diverse capabilities ranging from the planning of complete plants to the design and manufacturing of individual machinery. In the area of copper tube production ASMAG GmbH covers the total downstream process starting from straight drawing machines and annealing down to level winders.
Whether it is designing of plants or building machinery, ASMAG GmbH emphasizes a smooth material flow, high automation and economical operation.
C&D tube is produced in three distinct phases:
Continuous upward casting of thin-walled copper tube
Breakdown drawing of the cast tube in continuous straight drawing machine
Intermediate annealing of the drawn tube with in-line inductive annealer
The first phase is performed with the UPCAST®-SGtube technology, which represents a heavily modified version of the baseline UPCAST® system meant for casting of copper rod. UPCAST®-SGtube is a flexible and energy-efficient technology allowing casting of different sizes of copper tube - even simultaneously. Each casting line is tailor-made to suit the customer’s specific needs. The product coming from the UPCAST®-SGtube line is a thin-walled cast tube with a ductile grain structure withstanding high area reductions.
While showing high ductility the tube is still an as-cast product. Thus it is recommended to perform the breakdown drawing (phase 2) in a continuous straight drawing machine. ASMAG GmbH has come up with an innovative design for its straight drawing machines offering low wear in the drawing carriages and enabling quick change of rolls in the swivel-mounted bending unit.
Two drawing passes with an overall area reduction of ≥50% is sufficient for perfect recrystallization during intermediate annealing (phase 3) giving the semi-finished C&D tube a fine and uniform grain structure which is a pre-requisite for successful follow-on drawing on high-speed spinner blocks. ASMAG GmbH’s annealer design is characterized by precise tube guidance and an induction coil optimized for high energy-efficiency.
Low life-cycle costs
Compared to conventional copper tube production methods the Cast&Draw concept offers proven cost savings for small or medium size tube mills. All-round savings arise from both acquisition and production costs. Cast&Draw is a compact process having low energy consumption and requiring just a small workforce and a small floor area. Exceptionally high coil weights mean less process scrap throughout the whole tube production process. Overall yield is in the range of 90-95%, a value unheard of in other tube production methods.