Sms Innse S.p.a.

Innse Innocenti Santeustacchio S.p.a.

Demag Italimpianti S.p.a.

Innse Innocenti Engineering, S.p.a.

Vincenzo Palma

Ettore Cernuschi

Guido Emilio Zanella

Marco Ghisolfi

Filippo Cattaneo

Paolo Marin

Maurizio Brignoli

Roberto Brioschi

Jacopo Grassino

Alberto Vittorio Maria Bregante

Roger Bossoney

The invention relates to a pipe rolling plantcomprising a rotary piercer, a treatment stationand a main rolling mill. The rotary piercer and the treatment station are arranged so that the pierced blankleaving them is arranged with the irregular tailfacing the main rolling milland with the regular headfacing the mandrel. The invention also relates to a rolling millcomprising a plurality of rolling stations, each station comprising a plurality of rolling rolls, the radial position h of which is adjustable. The rolling mill also comprises a control circuit for calculating and/or measuring the distance d between the axes of rotation r of the rolls and the trailing edgeof the pipe. The control circuit is also designed to displace the rolling rolls radially towards the outside of the pipe in each rolling stationwhen the distance d assumes a predetermined value d.

Rolling plant, rolling mill and rolling method

The present invention relates to a system and method for rolling a seamless tube. The plant comprises a main rolling mill with adjustable rolls for mandrel-rolling a semi-finished tube. The plant also comprises a fixed-roll extracting/reducing mill positioned downstream of the main rolling mill. The extracting/reducing mill is designed to extract the semi-finished tube from the mandrel and reduce its diameter to a predetermined value close to that desired for the finished tube. Finally, the plant comprises a adjustable-roll sizing mill. The sizing mill is positioned downstream of the extracting/reducing mill. This sizing mill is designed to adjust the radial position of the rolls and define the diameter of the outgoing tube.

Tube rolling plant

Rolling mill for sizing tubes or cylindrical bodies in general in the

A rolling stand includes a roller-carrier substantially in the form of a ring-shaped body having the rollers journalled on its interior; the roller-carrier is slidable along a longitudinal rolling axis L between an operative position occupied during the rolling process, where it is locked inside an outer structure of the rolling stand, and a non-operative position where it is removed from the structure. Provided within the rolling stand are guide means for guiding the roller-carrier movement along the axis L and means of locking the roller-carrier in the operative position.

Rolling stand, having three or more driven and adjustable rollers

A stretch-reducing mill comprises a plurality of rolling stands laid side-by-side between an input stand and an output stand. A first group of stands adjacent to one another is next to the input stand and a second group of stands adjacent to one another is next to the output stand. The first group of stands is operated through a differential drive with two motors; the second group of stands is driven by independent single motors.

Stretch-reducing mill for rolling tubes

Growing community of inventors

Sesto San Giovanni, Italy

Vincenzo Palma