Acta Univ. Agric. Silvic. Mendelianae Brun. 2012, 60(1), 181-188 | DOI: 10.11118/actaun201260010181

Anticorrosion protection of strength bolts

Jiří Votava
Ústav techniky a automobilové dopravy. Mendelova univerzita v Brně. Zemědělská 1, 613 00 Brno, Česká republika

Corrosion damage may, from the technical point of view, cause changes in mechanical and physical characteristics in particular, at the same time it may also cause changes in surface geometry. These aspects are likely to manifest themselves in all steel parts. The presented study looks at corrosion protection in bolts and bolt connections protected by metal coating based on zinc.
Four different types of passivation, easily accessible on the Czech market, have been selected for this experiment. They are as follows: first, galvanic plating using white zinc; second, galvanic plating using yellow zinc; third, hot dip galvanizing; fourth, specific type of plating using the technology Dacromet 500 LC. In order to compare the given parameters there have been selected a unified M bolt size of 8 × 30 mm.
The experimental part of this study can be further divided into two phases. The initial phase puts stress on the exact specification of the protection layer, namely, the analysis and establishment of the elemental compositon contained in the given coating, its microhardness, weight and thickness. The second phase of the experiment analyses the results of tests according to the norm ČSN ISO 9227 (Salt Fog Test) and ČSN ISO 6988 (Sulphur Dioxide Test). With the tests we have concentrated on the initial stages of corrosion degradation and its overall process.

Keywords: corrosion, zinc plating, analysis, bolt, elemental composition

Received: October 17, 2011; Prepublished online: October 5, 2013; Published: October 9, 2013  Show citation

ACS AIP APA ASA Harvard Chicago IEEE ISO690 MLA NLM Turabian Vancouver
Votava, J. (2012). Anticorrosion protection of strength bolts. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis60(1), 181-188. doi: 10.11118/actaun201260010181
Download citation

References

  1. BARTONÍČEK, R., 1966: Koroze a protikorozní ochrana kovů. Praha: NČSAV, Without ISBN.
  2. BARTONÍČEK, R., 1980: Návrhy protikorozní ochrany. 1st edition. Praha: SNTL, 287 p. Without ISBN.
  3. ČSN ISO 9227 korozní zkoušky v umělých atmosférách. Zkouška solnou mlhou, 1994.
  4. ČSN ISO 6988 Kovové a jiné anorganické povlaky. Zkouška oxidem siřičitým s povšechnou kondenzací vlhkosti, 1994.
  5. ČSN EN ISO 3892 Konverzní povlaky na kovových materiálech. Stanovení plošné hmotnosti povlaku - Vážková metoda, 2002.
  6. DILLINGER, J., 2007: Moderní strojírenství pro školu i praxi. Edition. Praha: Europa sobotáles, 612 p. ISBN 978-80-86706-19-1.
  7. KENDIG, M. W., BUCHHEIT, R. G., 2003: Corrosion 2003, ISSN 1466-8858.
  8. MARDER, A. R., 2000: The metalurgy of zinc-coated steel, Progress in materials science 45. Go to original source...
  9. PEJČOCH, M., CHRÁST, V., ČERNÝ, M., 2006: Aspekty protikorozní ochrany automobilů In: Kvalita a spoľahlivosť technických systémov. Nitra: MF-SPU Nitra, p. 157-160. ISBN 80-8069-707-8.
  10. PORTER, F. C., 1991: Zinc handbook, New York: Marcel Dekker.
  11. PRŮŠEK, J. a kol., 1985: Hodnocení jakosti a účinnosti protikorozních ochran strojírenských výrobků. Praha: SNTL Praha, Without ISBN.
  12. SVOBODA, M., 1985: Protikorozní ochrana kovů galvanickými povlaky. 1st edition. Praha: SNTL, 235 p. ISBN 04-603-85.
  13. ŠČERBEJOVÁ, M., 1993: Strojírenská technologie. 1st editon. Brno: VŠZ Brno, 132 p. ISBN 80-7157-083-4.

This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY NC ND 4.0), which permits non-comercial use, distribution, and reproduction in any medium, provided the original publication is properly cited. No use, distribution or reproduction is permitted which does not comply with these terms.