Plates

Plates

Information

The plate rolling mill was founded in 1971 and underwent extensive modernisation in 1999, which permitted a significant improvement in the geometry of rolled plate, surface quality and expansion of range. Plates are manufactured from continuously cast slabs.

The range of plates is rolled in thicknesses 5 – 100mm (200mm) and widths 1000 – 3200 mm.

The quality range has these applications of use:

ocelové a mostní konstrukce

lodě

dopravní stroje a vozidla

otěruvzdorné plechy

tlakové nádoby užívané za normálních i zvýšených teplot

speciální vojenská technika

plechy odolné proti atmosférické korozi

tvarové výpalky

produktovody

ocelové a mostní konstrukce

steel and bridge structures

ships

transport machines and vehicles

abrasion resistant plates

pressure vessels used at normal and high temperatures

special military equipment

plates resistant to atmospheric corrosion

flame-cut shapes

pipelines

offshore constructions

Catalogue

Dimensional tables

Plechy 2025 katalog

Product catalog

Product catalog

Plate marking

Plates are marked by stamping and with paint. In the case of cold stamping of plates (four-high), the plates are stamped using the low-stress spot method. In the case of manual stamping (two-high), it is necessary to agree on the low-stress method in the order. The plates are marked with white paint on automatic signing machines or manually (usually using templates). A specific requirement of a customer for marking of plates with text (spraying white paint on plate) or colour marking is implemented after agreement as part of each individual order. The Colour Marking Catalogue containing the individual patterns is available to make the choice of colour marking easier.

 
razba_s_cz

Example of stamping plate marking (cold stamping)

barva_s_cz

Example of plate marking using white paint (automatic signing machine)

Delivery conditions

Používané normy

  • Rozměr a rovinnost (standardně)
    • dle EN 10029, A(SA)20/A(SA)20M, A(SA)6/A(SA)6M,
    • po dohodě možno i dle speciálních požadavků
  • Povrch (standardně)
    • dle EN 10163
    • po dohodě možno i dle speciálních požadavků
  • Ultrazvuk
    • dle EN 10160, SEL 072/77, A(SA)435, A(SA)578,
    • po dohodě možno i dle požadavků dalších norem, například GOST 22727/88, NF A 04-305, BS 5996 : 1993, a jiné
  • Dokumenty kontroly
    • dle EN 10204
  • Zkoušení
    • podle standardů EN, ASTM, ASME, DBS inspekčních společností (LRS, DNVGL, BV, ABS)
    • po dohodě možno i dle speciálních požadavků

Standards used

  • Dimension and straightness (as standard)
    • according to EN 10029, A(SA)20/A(SA)20M, A(SA)6/A(SA)6M,
    • following agreement also possible according to special requirements  
  • Surface (as standard)
    • according to EN 10163
    • following agreement also possible according to special requirements
  • Ultrasound
    • according to ČSN EN 10160
    • following agreement also possible according to requirements of other standards
  • Inspection documents
    • according to 10204
  • Testing
    • according to standards TUV NORD, LR, DNV
    • following agreement also possible according to special requirements

Technical equipment

Rolling mill 3,5 Kvarto

Production range: rolled plates in thicknesses 5 - 100mm (200mm) and widths 1000 - 3200 mm.

Production capacity755 thous. t/year
Length of rollers3 500 mm
Diameter of working rollers940-1005 mm
Diameter of backup rollers1750-1 900 mm
Minimum thickness of plates5 mm
Maximum thickness of plates100 mm (200mm)
Maximum width of plates3 200 mm*
maximum length of plates18 000 mm*
Maximum rolling force62 MN

*other dimensions by agreement

Heating of charge

  • two pushing furnaces with output of 80 and 90 t/h
  • double-line furnace with bottom and top heating
  • heating by natural gas

Finishing shop

Ultrasound inspection

  • automatic ultrasound line with 100% coverage of area
  • 2 manual ultrasound machines

Coating of rolled products

  • edge shears
  • longitudinal separating shears

Separation of rolled products

  • separating shears with magnetic table for processing warehouse formats
  • cutting line

Heat treatment

  • continuous annealing pit
    • length 73 000 mm 
    • capacity 190 kt/year
    • for plates in thicknesses 5 – 70 mm
  • three car-hearth furnaces
    • capacity 3 x 30 t 
    • usable width of pit max 4 500 mm 
    • maximum length of plates 18 000 mm

Stamping of plates

  • low-stress stamping machine with depth of stamping 0.2 – 0.3 mm

Paint marking of plates

  • two marking machines apply fast-drying alcohol-based paint to upper surface

Test management

  • two plasma cutters for preparation of test semi-finished products

Straightening

  • straightening machine for straightening cold plates following annealing to thickness 25 mm
  • straightening machine for straightening cold plates to thickness 12 mm
  • straightening machine for straightening plates up to 100 mm

Surface inspection

  • there are four turners for visual inspection of the top and bottom surface with illumination of min. 500 lux

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