| | SLO | ENG | Cookies and privacy

Bigger font | Smaller font

Show document Help

Title:DOLOČANJE VSEBNOSTI Cr6+ NA POVRŠINI KONČNIH IZDELKOV KOVINSKE INDUSTRIJE
Authors:ID Stupan Rozman, Irena (Author)
ID Goršek, Andreja (Mentor) More about this mentor... New window
ID Pečar, Darja (Comentor)
Files:.pdf VS_Stupan_Rozman_Irena_2014.pdf (1,22 MB)
MD5: C22D60D078E2B9A2A7BD999035785EE9
 
Language:Slovenian
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:V zadnjem času je skrb za okolje vedno večja. Na probleme onesnaževanja nas opozarja tudi okoljska zakonodaja. Ta s predpisi s teh področij določa zdravstvene standarde in omejitve za onesnaževalce okolja. Med močne onesnaževalce okolja spada tudi šestvalentni krom. Omejevanje le-tega določa Pravilnik o omejevanju uporabe določenih nevarnih snovi v električni in elektronski opremi (Uradni list RS, št. 87/2009, 32/2010 – napisan na osnovi RoHS direktive 2002/95/ES Evropskega parlamenta in Sveta z dne 27. 1. 2003 ). Namen oz. cilj tega diplomskega dela je bila natančna določitev koncentracije Cr6+ na površini končnih izdelkov. Analizirali smo več vrst končnih izdelkov, kot so: vilični ključi, klešče, obročni ključi itd. Ti izdelki so v celoti proizvedeni in galvansko obdelani v podjetju Unior d. d. Vzorce smo pripravili po navodilih standarda EN 15205:2005. Koncentracijo Cr6+ smo določali s spektrofotometrom. Ugotovili smo, da je koncentracija Cr6+ pod mejo, ki jo določa Pravilnik o omejevanju uporabe določenih nevarnih snovi v električni in elektronski opremi.
Keywords:Cr6+, koncentracija, galvanizacija, korozija
Place of publishing:Maribor
Publisher:[I. Stupan Rozman]
Year of publishing:2014
PID:20.500.12556/DKUM-46993 New window
UDC:669.26:620.193.4(043.2)
COBISS.SI-ID:18401302 New window
NUK URN:URN:SI:UM:DK:XIUQSMRX
Publication date in DKUM:07.01.2015
Views:2165
Downloads:221
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FKKT
:
Copy citation
  
Average score:(0 votes)
Your score:Voting is allowed only for logged in users.
Share:Bookmark and Share



Hover the mouse pointer over a document title to show the abstract or click on the title to get all document metadata.

Secondary language

Language:English
Title:DETERMINATION OF Cr6+ ON THE SURFACE OF METAL INDUSTRY FINAL PRODUCTS
Abstract:Concern for the environment has recently been increasing. Environmental legislation also remind us on the problems of pollution. This with the provisions of these areas provides health standards and limits for pollutants. Heavy polluters of the environment also includes hexavalent chromium. Its limits are defined by the Rules on the restriction of use of certain hazardous substances in electrical and electronic equipment. (Official Gazzete of RS, no. 87/2009, 32/2010 – writen on the basis of the RoHS Directive 2002/95/EC of the European Parliament and of the Council of 27.1.2003). The aim of this study was precise determination of concentration of the Cr6+ on the surface of finished products. We analyzed several types of end products such as fork wrenches, pliers, ring spanners … This products are entirely manufactured and galvanic treated in the company Unior d.d. Samples were prepared according to the instructions of the standard EN 15205:2005. Concentrations of Cr6+ were determined with a spectrophotometer. We have found that in all cases the concentrations of Cr6+ were below the limit which is set by the Rules on the restriction of the use of certain hazardous substances in electrical and electronic equipment.
Keywords:Cr6+, concentration, plating, corrosion


Comments

Leave comment

You must log in to leave a comment.

Comments (0)
0 - 0 / 0
 
There are no comments!

Back
Logos of partners University of Maribor University of Ljubljana University of Primorska University of Nova Gorica