Cold drawn bars

Cold drawn bars are cold finished products achieved by the cold deformation of the wire rod through a die that reduces the diameter and after various controls are cut into the length required. This process achieves the calibration of the wire into the diameter required. We can obtain wire in a wide range of diameters, the mechanical characteristics increase depending on the reduction carried out.

Diameter Range: 
14 - 36 mm
Tolerance: 
h9 or higher
Length: 
3000 - 8000 mm
Bundle weight: 
1 - 3 ton
Packing: 
fixed with metal stripe or with juta wrapping on request.

Trafilati Martin - Cologne

Via Kennedy 64
25033 Cologne BS
Italy
Phone: +39 030 705 8 311
Fax Number: +39 030 705 0 490

Modonesi Massimo
Italy
Phone: +39 030 705 8 323
Fax Number: +39 030 705 0 490

Tel +39 030 705 8 323
Fax +39 030 705 0 490
massimo.modonesi@orimartin.it

Coil unwinding

The coil is placed on an appropriate support and prepared for processing.

Sand-blasting

The sand-blasting process is used to descale the surface and prepare the rolled product for the drawing phase.

Coil-bar drawing machine

The drawing operation occurs by feeding the strip through a hard metal die, lubricated with suitable oil, that reduces its cross-sectional dimensions by way of crushing and traction. The wire is driven by a system of clamps that open and close in an alternating manner, so that dragging occurs at constant speed.

Bar shearing to size

A shear cuts to size the bars which are then gathered for being packed.

Straightening

Two opposite rollers straighten the drawn bar by controlled deformation and prepare it for the sectioning phase.

Checks

Induced-current non-destructive tests are carried out for verifying the surface soundness of the drawn elements.

Drawn bars warehouse

The drawn and packed bars are stored in the warehouse ready for being shipped to the customer.

Bright steel engineering steel grades for automotive and mechanical industry