| High quality copper scrap and ingots of zinc, nickel or
tin are used to charge the 4 melting furnaces. |
| After reaching a temperature of about 1200 degrees Celsius,
the metal is sampled and analysed using a fully automatic
optical emission spectrometer. |
| When the analysis complies with the required specification,
the molten metal is transferred from the melting to the holding
furnace. Two strands of cast strip are extracted simultaneously
from the cooler. |
| The cast coils are milled in order to achieve a smooth
surface free of oxides and porosity. In-house cutter grinding
provides the right tooling for the job. |
| Mason operates three 4-high rolling mills to roll material
between 15 mm and 0.08 min. The MDS Mill pictured above includes
flatness control and mass flow thickness control systems
in order to achieve the tightest customer specifications. |
| The coils are annealed in bell furnaces under protective
nitrogen and hydrogen atmosphere, either to soften them for
further rolling or to anneal them at final thickness to the
desired temper. |
| The two Junker strand annealers incorporate degreasing,
annealing, cooling, pickling, brushing and washing in one
operation, resulting in short production lead times and a
large range of achievable tempers. |
| Our two new Froehling slitters shear strip between 0.08
mm and 4.0 mm thickness, using the latest technologies like
CNC slitter heads and a vacuum roll breaking system. |
| Mason produces various copper alloys in strip widths between
3 and 400 mm. |
| The coils are conveyed through a 44 m long packing line
that includes automatic banding, stacking onto wooden pallets
and stretch wrapping. Now the strip is packed securely and
prepared for transport. |
| The finished pallets are stored in 10 metre high racks
until delivery to customers located around the globe. |
click here to view the production flow chart
|
