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Welding and surfacing section

The cladding is used to give the sealing surfaces of the valves of thermal power plants and nuclear power plants such special properties as resistance to tearing and resistance to erosion. For surfacing sealing surfaces (saddles and spools), automatic submerged-arc welding with flux-cored wire, surfacing in inert gases and mixtures with seamless and flux-cored wire, plasma-powder surfacing is used.

In the cases of valves and fittings from Dy = 10 to Dy = 65, the technology of automatic surfacing of saddles was introduced. In the process of manufacturing pipe fittings one of the most responsible and controlled is the welding operation. The company has a staff of highly qualified welders and welding specialists certified by Rostechnadzor commissions.

Welding production is equipped with both domestic and imported equipment that allows the manual welding process (arc welding with coated electrodes and argon arc welding) and automatically (welding under flux, welding in inert gases and mixtures). All welding equipment was also certified for compliance with the requirements of RD 03-614-03 at the Certification Center of CNIITMASH NAKS.

For the implementation of various types of heat treatment (quenching, normalization, tempering, etc.) CJSC "Firm" Soyuz-01 "has thermal furnaces.

The company also has an installation for performing chemical heat treatment of parts:

  • carbonitration,
  • nitrogenation cementation,
  • oxide free heat treatment.
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