Hardfacing

- Wear Plate

- Continuous casting Roll

- thermal power plants & Cement Company

*Application

More Benefits - Improved microstructural stability
- Enhanced temperature resistance
- Higher impact resistance and toughness
- Improved oxidation and corrosion resistance
- Higher resistance to thermal cycle and fatigue
- Improved resistance to fire cracking

*What you get...

less than 50% of total cost

about 80% of total cost

repairing cost

easy

difficult

repairs

none

highly possible

crack occurrence possibility

x 1.5

x 1

service lifetime

minute (Nb-C)

coarse(Cr-C)

microstructure

HARDFACING METHOD

CASTING METHOD

ITEM

* Casting Products vs Hardfacing Products

Description

Conventional casting rollers tend to sacrifice wear resistance in order to ensure sufficient core ductility and toughness. By doing so, catastrophic failure, such as neck breakages, cracks through the body, and spalling may be avoided, however, surface deterioration, resulting from pressure, abrasion and erosion, thermal fatigue, oxidation and scaling, crack propagation, and corrosion in the presence of water does occur. In order to avoid such sacrifices, we have developed a new welding method called hardfacing, which ensures surface wear resistance while maintaining core ductility and toughness at the same time. Hardfacing is performed by overlayig the grinding media with wear resistant noble welding alloys which improve the life expectancy of rollers and thus enable our rollers to withstand harsh grinding environments for longer periods.

Country:South Korea
telephone:82-02-786-0451

Conventional casting rollers tend to sacrifice wear resistance in order to ensure sufficient core ductility and toughness.

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