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Plate leveling machine |
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Edge-planing machine with cutting edge of 125000 mm |
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Machine for milling the plates up to 80 mm thick, 3600 mm wide |
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630 tf Flanging press |
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250 tf Crank plate-bending press |
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CNC Portal gas-cutting machine, OMNIMAT,Germany. Range of thicknesses to be cut is from 6 to 300 mm, positional accuracy ±0.5 mm |
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A "CORTINA DP" (Czech Republic) CNC portal plasma cutting machine provides cutting of thicknesses from 5 to 45 mm, with cutting accuracy of ±0,5 mm and cut plate sizes of 2500x9000 mm |
Machine gas - shielded electric-arc welding |
Orbital welding of pipeline |
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This kind of welding is performed in carbon acid gas, argon or helium or in the mixtures of these gases. The main welding facilities comprise the highly efficient welding units made by Messer and EWM (both of Germany) and fitted with the microprocessor - based inverter power supplies. The key advantage of these units is that they provide a lot of possibilities of the welding control at all welding stages including metal transfer, metal motion in a weld bath, weld crystallization and degassing, formation of the required weld shape and surface quality.
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To provide precision welding of pipelines, an orbital welding unit made by POLYSOUDE (France) is used. It enables to carry out automatic welding of the non - rotatable welds with the non-consumable electrodes with the filling wire being used or not. A pulsed arc welding or welding with the transverse oscillations of electrodes can be applied. Microprocessor-based control provides a lot of possibilities for programming a welding cycle and for documenting the process parameters.
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Flux electric arc welding in narrow gap grooving of thick-wall cylindrical constructions
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| Characteristics of products to be welded | |
| Max. dia., mm |
3000 |
| Length, mm | 9500 |
| Thockness, mm | до 500 |
| Weight, t | 200 |
ELECTROSLAG WELDING
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NKMZ has been the leader in mastering and applying of the electroslag welding technique that allows fabrication of the parts weighing up to 300 t made of forged and cast blanks and also made of plate rolled products and combined blanks. Mechanical properties of the welds don't yield to the properties of the base metal. If required, the elements of the higher strength steel are welded into the most stressed parts of structures. Electroslag welding technique and equipment make it possible to weld the articles with the section of 4500x5500 mm (thickness of the welded elements x vertical length of the welds). |
ARCHITRAVE OF PRESS WITH CAPACITY OF 60 MN |
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| Material | Сталь 30Л |
| Section to be welded, mm |
865х320 |
| Weight, t |
124 |
 MIDDLE FRAME PART OF PRESS WITH CAPACITY 60MN |
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| Material | Сталь 30Л |
| Section to be welded, mm |
3380х3170 |
| Weight, t | 145 |
CYLINDER BODY SRP-R 9000 |
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| Material | 20 ХНМФ |
| Section to be welded, mm |
1430х2930 |
| Weight, t | 145 |
| BOTTOM CROSS-PIECE SRP-R 9000 |
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| Material | GS-20Mn5 (20Гл) |
| Section to be welded, mm |
2490х3860 |
| Weight, t | 150 |
AUTOMATIC ELECTRIC ARC WELDING DEPOSITION
Characteristics of the deposited layer: corrosion and wear resistance.
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