No. 4, 1998 - Tribology in Industry

Fig. 7. Detail of electroslag sutfactug of flat tolls
that this technology can be applied mainly by the switch
from production of rolls of high-chromium alloy to the
high-speed steel materials (HSS).
Table 4. Chemical compositiort of electroslag wekl deposits
on rolls
Mark
Electroslag surfacing can be seen in Fig, 7. The roll after
surfacing is shown in Fig. 8.
7. CONCLUSION
Submerged arc hardfacing and electroslag hardfacing
technology can solve lot of problems with metallurgical
rolls and can improve the quality of the rolls and their
long life.
REFERENCES
Chemical composition [%Wt]
Mn DI P
194:t1 0,79 0,39 0,26 0.012 0,011
GCr 2,46 0,52 0,28 0,014 0,035
Continuatiort of Table 4
Chemical composition [7oWt]
Ar Ni Mo V
Application
0,05 0,3'l 1,65 0,19 0,01 cold rolls
0,43 14,27 o,47 0,05 hot rolls
lL) Bryant,,L M.: Rolls 2000 - The Challenge In.: Rolls
2000, Birmingham UK, March, 1996.
Fig. 8. The roll afret surfucing
12.) Hashimoto, M. - Shibao, S. : Recent Technical Trends
of Hot Strip Mill Rolls at Nippon Steel Corporation.
In.: Rolls 2000, Birmingham, UK March 1996.
[3.] Blaikovii, P.: Present State and Future Perspectives
of Surfacing Rolling Mill Rolls in Slovakia, Doc.
IIW: SC-S-48/94
[4.] Filler Materials. Catalogue, VUZ Bratislava,1996.
[5.] Stekly, J.J. - Atamert, S. : Nitrogen Bearing 400 Series
Alloys for Cladding Continuous Casting Rolls. In.:
36th Mechanical Working and Steel Processing
Conference, Oct. 1994 Baltimore, USA.
16.l Cornaj M. - Sefiik D. - Mihalkovii K. - Domankova
M.: Predli,enie Zivotnosti valcov ZPO navaranim 3-
tej generacie. In.: Weldtech 97 - Progress in Welding,
Proceedings, WRI Bratislaa 22-23 Oct.1997.
[7.]Comaj M.: Nove poznatky v navarani valcov zariadenia
pre plynule odlievanie ocele do bram pridavnymi
materialmi VUZ. In.: Welding 94. Progress in
welding technolory. WRI Bratislava May 1994.
[8.] Blaikovil P.: Tribological aspects of non-uniform
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TERTRIBO,S4 - Proccedings, DT Brutislava, The
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Tibologt itt indtstry, Volume 20, No.4, 1998"