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Notification of changes
in the agenda of the annual General meetings
General Director of PRIVATE JOINT stock company «Ukrenergoremont” reports on amendments in the agenda of the ordinary General meeting of shareholders, held on 28th April 2016 at 12.00 at the address: Ukraine, Dnepropetrovsk region., city Kryvyi Rih, str. 10-letiya Oktyabrya, Bud. 37-b approx. 21 (announcement of the convening of the next shareholders ' meeting published in the Bulletin "Bulletin of the National Commission on securities and stock market" No. 60(2314) from 29.03.2016 g) by the inclusion of new issues.
13.04.2016 -
Company PJSC "Ukrenergoremont" mastered, manufactured and delivered to the consumer, the roller with the actuator 1M-27250А for rolling mill.
30.03.2016 -
The General Director of the PRIVATE JOINT-stock company "Ukrenergoremont" notifies You that on April 28, 2016 at 12: 00 at the address: Ukraine, Dnepropetrovsk region., city Kryvyi Rih, str. 10-letiya Oktyabrya, Bud. 37-b approx. 21, will hold the annual General meeting of shareholders.
28.03.2016
Heat Treatment
|
Equipment for heat treatment |
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|---|---|---|---|---|
|
Shaft furnaces
|
1 |
Maximum operating temperature,,,оС |
1300 |
|
|
Workspace, mm |
Ø1150, depth 2500 |
|||
|
1 |
Maximum operating temperature,,оС |
1300 |
||
|
Workspace, mm |
Ø800, depth 1800 |
|||
|
Glowing furnace |
RК 225/12 Czech Republic |
1 |
Dimensions of the working zone, mm |
600х500х750 |
|
Nominal temperature e. resistance furnace, оС |
1280 |
|||
|
Batch furnace |
PKM 4.8.4 |
1 |
Dimensions of the working zone, mm |
450х550х600 |
|
Nominal temperature,оС |
1200 |
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Heat Treatment of Steel
Heat treatment of steel – the process of changing the structure of steel while it heating with subsequent temperature lowering at a certain speed.
Heat treatment of steel causes to significant changes in its properties, whereas chemical composition remains the same.
Heat Treatment of Steel at Ukrenergoremont
PJSC Ukrenergoremont uses a special heat-treating equipment: shaft, glowing and batch furnaces.
Thermal treatment (heat treatment) provides certain mechanical properties of steel products, such as high hardness, which increases the resistance to wear; less brittleness to improve processing or to enhance the toughness and other.
For proper heat treatment is necessary to select the correct temperature range, depending on the grade of steel.
Heat treatment of steel is divided into the following types:
- annealing
- hardening
- output
- normalization
Annealing - a heat treatment of steel which is performed by heating it and then slow cooling down. This kind of heat treatment is also divided into different types, which depend on the heating temperature, the cooling rate of the steel.
Hardening - heat treatment of steel, which causes recrystallizing by heating to a temperature above the critical. At this temperature, the steel is held, and then rapidly cooled. Consequently, it becomes hardened and obtains nonequilibrium structure, so it is used the following type of heat treatment of steel.
Output – heat treatment of steel, which is carried out after hardening. Performed in order to reduce or remove residual stress in the steel while increasing viscosity and decreasing the hardness and brittleness of the steel.
Normalizing - heat treatment of steel is similar to annealing. Their difference is that the normalisation of the steel is air-cooled, and during annealing - in the furnace.