Автоматизация листопрокатного производства

The control system for the rolling modes of cold rolled steel strips

Purpose of the system:

• automatic stop at the end of the roll;
• monitoring of defects;
• adjustment of strip thickness by tension or clamping;
• work in the mode of band-by-rolling.

The system controls the process of obtaining a metal strip 0.5-1 mm ± 20 μm thick from a strip 3-4 mm thick (as one of the examples).

At the same time ASU TP:

• keeps track of, stores and prints information about the defects of seams, deviations in thickness;
• Determines the end of the roll and stops the rolling at the end of the roll;
• saves and restores the coordinates of the ends of the strip and the number of passes during the transition of one band to another,
• determines the possibility of an exact stop over the deflector rollers
• performs the reset of the counters of pulse coilers, deflector rollers, number of passes, auxiliary variables.

The peculiarity of the offspring is that a fast transition to a new system is possible without stopping the work of the mill

The specialists of STC "Privodnaya Tekhnika" can perform the following types of work:

• working design of the system;
• software development;
• assembling systems and supplying equipment;
• chief installation and adjustment of equipment;
• training of customer's specialists

Completed projects:

OJSC CHELYABINSK METALLURGICAL COMBINE (OJSC MECHEL), Chelyabinsk

• Reconstruction of Rolling Shop No. 3 with the installation of a universal mill // Rolling shop No. 3 // Development of applied software (supervision, development of operational documentation)
• The control system for the rolling regime of cold rolled steel strips for a 20-roll mill // Shop # 5 // Control of the process of obtaining a strip of metal 0.5-1 mm thick ± 20 microns from a strip 3-4 mm (Design, fabrication, adjustment)
• Exciters of the main drives of the mill 302 // Rolling Shop No. 1 (Project, commissioning)

JSC "ASHINSK METALLURGICAL PLANT", Chelyabinsk region.

• Modernization of the electric drive of the rolling table of the rolling mill 2850 // Sheet rolling shop No. 1 (Design, fabrication)
• Modernization of electric drives of PKS roller tables // Sheet-rolling shop No. 1 (Draft)
• Modernization of the electric drive for the movement of the sledge of the rolling mill // Sheet-rolling shop No. 1 (Design, fabrication, adjustment)
• The main drive of the mill 1500 (750V, 5000A) // Sheet rolling shop No. 1 (Adjustment)

JSC "BELORETSK METALLURGICAL COMBINE", rep. Bashkortostan

• The two-stage cooling line on the wire mill 150: the drive (200kW) of the fan of the air cooling line (Design, fabrication, commissioning)
• and etc.