Kontrolno-tehnološki postopek anodizacije

diplomsko delo

Natalija Leskovar (Author), Maja Leitgeb (Mentor)

Abstract

Diplomsko delo obsega raziskavo, s katero smo poskušali podrobneje prikazati potek anodizacije. Predvsem smo se osredotočili na luženje (pickling). Raziskava je potekala v proizvodnem obratu Eloksirna in njenem pripadajočem laboratoriju v podjetju Aha Emmi, predelava aluminija, d. o. o, in sicer v kraju Slovenska Bistrica. V proizvodnem obratu smo pripravili vse potrebne vzorce - ploščice iz aluminija, na liniji anodizacije je potekala obdelava, v laboratoriju pa smo opravili vse potrebne analize za študijo. Proučevali smo predvsem odvisnost količine odvzema iz materiala glede na čas obdelave in vpliv koncentracij Al in NaOH na čas luženja. Prav tako smo bili pozorni, kolikšna je pridobitev teže na materialu po anodizaciji in kolikšne so bile razlike med srednjo in veliko navojnico. Potrebne podatke smo dobili s pomočjo analiz raztopin, za študijo odvzema materiala pa smo uporabili elektronsko kljunasto merilo. Ko smo ugotavljali vpliv koncentracij Al in NaOH, so bile naš vzorec velike in srednje navojnice. Obojne predstavljajo izdelek v podjetju, katere je za nadaljnjo uporabo potrebno anodizirati. Z raziskavo smo ugotovili, da je količina odvzema iz materiala odvisna od časa trajanja luženja, posledično torej tudi od koncentracij Al in NaOH v raztopini. Obe koncentraciji sta medsebojno povezani, zato so potrebne analize obeh pred vsakim novim procesom luženja. Med veliko in srednjo navojnico prihaja do odstopanj v času trajanja luženja, predvsem pa do odstopanj pri koncentraciji obeh parametrov. Dejavnik, ki vpliva na to, je delovna temperatura kopeli. Pri srednji navojnici je delovna temperatura kopeli raztopine luga višja kot pri veliki navojnici. Z raziskavo smo potrdili hipotezo oziroma dejstvo, da material izgubi težo po samem procesu luženja in pridobi težo po končanem celotnem postopku anodizacije.

Keywords

diplomska dela;kemija;anodizacija;luženje;aluminij;

Data

Language:	Slovenian
Year of publishing:	2012
Source:	Maribor
Typology:	2.11 - Undergraduate Thesis
Organization:	UM FNM - Faculty of Natural Sciences and Mathematics
Publisher:	[N. Leskovar]
UDC:	54(043.2)
COBISS:	19394824
Views:	2168
Downloads:	284
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Certified tehnological process of electrolitic oxidation
Secondary abstract:	The thesis involves a research by which the process of anodizing was demonstrated in detail. Above all we were focused on pickling. The research was conducted in a production plant for anodising and its belonging laboratory of the enterprise Aha Emmi aluminium processing (LLC) in Slovenska Bistrica. All the necessary samples - aluminium plates were prepared in the production plant for anodising, processing was performed on the anodising line, and all the necessary analyses were conducted in laboratory. Dependence of the material reduction according to the process duration, concentration influence of Al and NaOH on pickling time, weight gaining of the material after anodising, and differences between middle and large mycron were analysed. All the necessary information was gained through the solution analyses, for the material reduction study the electronic calliper was used. While determining concentration influence of the Al and NaOH large and middle mycrones were used. Both represent a product which has to be anodised for the further usage. With the research it was established that the quantity of material reduction depends on pickling time, and subsequently also on Al and NaOH concentration in the solution. Both concentrations are mutually connected, therefor analysis of both are necessary before each new pickling process. There are also some deviations in pickling time between large and middle mycron, above all in both parameters concentration. Influence factor is working temperature of the bath. At the middle mycron the working temperature of the lye solution bath is higher than at the large mycron. The hypothesis or the fact that the material loses on weight at the pickling process and gains it back after the whole anodising process is finished was confirmed with the research.
Secondary keywords:	Aha Emmi;alumnium;anodisation;pickling;material reduction;
URN:	URN:SI:UM:
Type (COBISS):	Undergraduate thesis
Thesis comment:	Univ. v Mariboru, Fak. za naravoslovje in matematiko, Oddelek za kemijo
Pages:	38 f.
Keywords (UDC):	mathematics;natural sciences;naravoslovne vede;matematika;chemistry;crystallography;mineralogy;kemija;
ID:	994276