PC WIRE AND STRAND MACHINES

LINE FOR TREATMENT OF LOW RELAXATION STEEL WIRE FOR PRESTRESSED CONCRETE AND STRUCTURAL REINFORCEMENT

High carbon steel wire is used as structural reinforcement in a wide field of applications such as big industrial and civil engineering works (beams and structures of multi-storey buildings, pillars, bridges, structures, docks, highway barriers, rail sleepers for high speed trains, concrete pipes, huge suspension cables for cable-stayed bridges, etc.). To fulfil efficiently the features of load and reinforcement this steel wire must have characteristics of LOW RELAXATION when it undergoes the continuous application of high axial loads (especially if combined with concrete). To produce such type of wire a tension relief treatment is necessary, obtained by placing the wire under a load equivalent to 40 % of its tensile while being heated to a temperature of approx. 400° C with further quick cooling.

Steel ropes made of high carbon wires mainly in assembly with 2, 3 and 7 wires (1+6 ), but today also in assembly with 19 wires (1+6+12) are more and more frequently used as structural reinforcement in a wide field of applications where it is needed to bear very heavy and continuous loads.

To minimize elongation under continuous load a tension relief treatment is necessary.

KEY BENEFITS

The treatment lines for PC Wire and PC Strand offered by Eurolls guarantee a technological process with very high performance and excellent quality, as a result of great technical knowledge and long experience in this field.

Internal diameter > 1220 mm

Welded joints: Not accepted