At the casting operation, chemical composition is strictly controlled and monitored using optical emission spectrometry. Degassing and specialised filtration technology ensure that a quality extrusion billet is produced, with molten metal cleanliness and structural integrity monitored on-line. Throughout the extrusion operation, process parameters such as billet and extrusion temperature, extrusion speed and pressure are rigidly controlled to optimise extruded product quality.
For cold drawing operations, the optimum tooling design can be selected depending on required tube characteristics such as dimensional tolerances or residual internal stress. An extensive range of sizes can be provided using in house capability on draw benches.
All heat treatment processes including annealing, solution heat treatment, artificial ageing and stress relieving are carried out in thermally tested and certified furnaces. State-of-the-art reeler straightening and finish cutting equipment ensure that the final product meets the required straightness and length tolerances.
An extensive range of test equipment and techniques are
employed to measure critical dimensions, including outside and
inside diameter, wall thickness, length and straightness and
chamfer dimensions.
