Product category:
Metals processing plant and equipment
News Release from: Rautomead International | Subject: Brass EDM wire rod casting plant - Taiwan
Edited by the Manufacturingtalk Editorial
Team on 08 April 2008
Brass wire rod continuously cast to
near-net-shape
Rautomead's continuous casting machine produces copper to near-net-shape, eliminating some of the traditional intermediate process steps and reducing manufacturing costs.
Continuous casting technology specialists, Rautomead, of Dundee, Scotland, has recently commissioned a brass EDM wire rod casting plant for JIA BAO Company, Taiwan The installation consists of a Rautomead RS 2500 upwards-vertical casting machine producing eight strands of 8mm diameter brass rod, formed into coils
This article was originally published on Manufacturingtalk on 3 Dec 2003 at 8.00am (UK)
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Output is a nominal 6,000 tonnes/year.
In this Rautomead process, grade A quality copper cathode and high quality zinc ingot are melted in an Induga channel type induction melting furnace, where alloy composition is checked before pouring to the casting machine.
After casting, 8mm diameter wire rod is drawn and annealed to make the final wire at 0.1mm to 0.2mm, according to customer requirement.
* Near-net-shape technology - Rautomead told manufacturingtalk that it has always specialised in technology that achieves near-net-shape in the continuous casting process.
The process eliminates some of the intermediate process steps associated with traditional manufacturing routes and so reduces manufacturing costs.
In the case of brass EDM wire, it is customary to cast the brass rod at 16-20mm diameter, then produce the initial size by rolling or drawing to 8mm.
The Rautomead technology removes the need for these initial reductions.
In addition, the benefit of casting at 8mm in brass production is enhanced by the relatively poor cold working properties of 60:40 and 65:35 brass, thus also eliminating at least some of the inter-stage annealing required, with important cost reduction implications.
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