Posted on 08 Jan 2025
Startup of shiftable roughing stands at Kamaishi special steel plant producing high-quality wirerod
The new, tailor-made roughing mill featuring shiftable stands operating now at Kamaishi plant in Japan, is designed for twist-free rolling of 130- to 168-mm billets at 130 tph.
The installation of the shiftable roughing mill, in a narrow space, increased billet charging flexibility and efficiency. Before the upgrading the mill was able to roll only 122-mm-square billets.
The Kamaishi wirerod mill produces high-quality, special steel wirerod in mild and hard steel wire, low-alloy steel, spring steel, special melt wire, and bearing steel grades.
The main equipment supplied includes two mono-groove vertical and horizontal housingless stands. Both stands are individually shiftable by an electric actuator to feed alternately each line of the three-strand wirerod mill with 122-mm-square bars, in diamond configuration as per original feeder.
Roll cartridges are automatically extracted to the nearby roll shop, where a compact Danieli roll-changing robot and an electric roll tilter operate.
A dedicated, three-strand pinch roll, spare cartridge units, special steel grooved rolls, and roller guides completed the project supply.
Danieli previously supplied Nippon Steel with several advanced technologies and systems for long products.
Source:Danieli
