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Our factories work exclusively material in cold, from bars or laminated rolls. Our processes can be combined based on the customerst necessities to obtain products that fulfil the specifications according to the norms in force. |
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CALIBRATED OR DRAWING LINE
The calibrated by drawing consists of reducing the section of a steel by deformation through a row of suitable form. With this process the superficial discontinuities are not eliminated, nor the decarbonized zone of the original material, producing nevertheless a bitterness whose effect, depending on the deformation degree, varies from a case hardening to a substantial modification of the mechanical characteristics.
The machines that we have to make the calibrating process are:
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NAME |
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TRADEMARK |
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HIGHER SPEED |
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Ø |
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6/C |
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4/C |
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D-5 |
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Danieli |
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100 m/min |
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5 a 14 mm |
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6 a 12 mm |
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6 a 10 mm |
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D-8 |
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Danieli |
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100 m/min |
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9 a 25 mm |
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10 a 22 mm |
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10 a 20 mm |
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S-1 |
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Schumag |
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60 m/min |
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6 a 15 mm |
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---- |
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S-8 |
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Schumag |
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50 m/min |
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20 a 40 mm |
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20 a 33 mm |
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20 a 30 mm |
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IV-D |
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Schumag |
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120 m/min |
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16 a 52 mm |
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16 a 46 mm |
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16 a 44 mm |
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I-B |
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Schumag |
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150 m/min |
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5 a 15 mm |
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5 a 14 mm |
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5 a 13 mm |
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The combined machines are able to develop different functions:
DOUBLE BOBBIN: In order to place rolls of raw material
PRE-STRAIGHTEN
SHOT (physical pickling of wire rod)
HYDRAULIC DRIVE
STRETCHING WAGONS
VERTICAL and HORIZONTAL STRAIGHTENING TRAINS
DETECTED
WIRE CUTTERS
STRAIGHTENED-POLISHED
BEVELLING MACHINE
METAL BANDING-WEIGHT
These functions allows the transformation of the roll of wire rod into calibrated bars of concrete length with variations from 20 to 30 mm, that serve to the mechanical industry like raw material. The normal tolerance is of variable quality from h9 to h11 and variable lengths from 2950 to 6050 mm, although, by contractual requirements can be specified other qualities and/or lengths.
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LINE OF TURNING
The line of turning has initiated the production in March of 2002. Is made up of the following functions:
LANDGRAF TURNING MACHINE.
BASQUE HYPERBOLIC ROLLERS STRAIGHTENING:S
CRACKS DETECTION: CIRCOGRAF AND DEFECTOMAT.
2 UNITS OF BEVELLING CNC LANDGRAF.
UNIT OF METAL BANDING-WEIGHT-LABELLING: GUARIENTI
The range of manufacture and benefits are the following ones:
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NAME |
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TRADEMARKS |
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RANGE Ø(MM) |
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RANGE LENGTHS (M) |
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HIGHER SPEED |
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Rev. |
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90 KC |
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LANDGRAF |
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15-90 |
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2,6 - 8 |
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2-45 m/min |
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30-2600 |
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PMO |
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SHUMAG |
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7-35 |
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2,7 - 7 |
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2-60 m/min |
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30-4500 |
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Process of Turning
With this process we obtain turned bars, to tolerances h11 - h10 - h9, free of the common defects that the drawing calibrate presents. The measurement is obtained by a process of extracting the metal shaving which assures the elimination of most of the superficial defects of the material laminated in hot. These defects can be more or less deep rays, small parts, non cylindrical sections, cracks on the surface, pores, of carburations that thermally treated steels have, etc. A noble product is obtained, within the Turned product range.
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LINE OF RECTIFIED
Rectified
Process characterised by the accomplishment of rectifying, eliminating a peripheral zone of the material by abrasion. It is possible to be applied to previously drawn products. With this process the fundamental characteristics of the steel are practically unmodified.
A total or partial disappearance of the superficial defects and the worked zone is obtained, according to the depth of the eliminated peripheral zone. The obtained dimensional tolerance is narrower than the ones obtained in the operations of stretched or turned (h6, h7 and h8).
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NAME |
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TRADEMARKS |
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RANGE Ø(MM) |
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RANGE LENGTHS (M) |
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ESTARTA |
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327FDA |
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8 a 100 mm |
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2,5 a 6,5 m |
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LANDGRAF |
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R664A |
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20 to 120 mm |
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2 to 6,5 m |
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LINE OF CUT
Automatic and sized cut process with packing in containers and 100% control of the length of cut by means of laser.
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NAME |
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TRADEMARKS |
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RANGE Ø(MM) |
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CUT(MM) |
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5 MACHINES |
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Soling |
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5 a 30 mm |
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150/550 mm |
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