Cost effective galvanising in remote areas

McInally, Stuart Anthony (2013) Cost effective galvanising in remote areas. [USQ Project]

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Abstract

The aim of this project is to determine a suitable method for applying zinc based corrosion protection to steel fabricated in a remote area. The various methods for applying the zinc have been researched to determine their requirements and their relative advantages and limitations. The application methods identified were:
*Hot-dip Galvanising
*Electro-Galvanising
*Metal Spray
*Sherardizing
*Organic Zinc Rich Primers
*Inorganic Zinc Rich Primers

The methods were researched to find the following information:
*Application Process
*Required Inspections
*Known Advantages and Disadvantages
*Health, Safety, and Environmental Factors
*Required Infrastructure

The results of the research were used to determine which of the coatings could be performed by the business. A criteria matrix was developed and used to determine this. Zinc thermal spray and both organic and inorganic zinc rich primers were deemed the most viable. The corrosion and abrasion resistance of these coatings were tested and compared with the performance of hot dip galvanising due to it being an industry standard. The results highlighted zinc thermal spray as the highest performer with greatest corrosion resistance and superior abrasion resistance over the painted coatings.

The costs of the coatings were also compared with the cost of having an external supplier performing hot dip galvanising. It was found that the cost of transport made this uneconomical as expected. The cost of zinc thermal spray again proved to be the highest performer being 25% less to apply than the painted zinc rich coatings.

The net present value for acquiring the infrastructure to perform zinc thermal spray was calculated and proved that the project is worth pursuing. This has provided assurance that the application of zinc thermal spray would not only provide the customer with a cost effective alternative to hot dip galvanising, but also that it will provide a positive investment for the business.


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Item Type: USQ Project
Item Status: Live Archive
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering
Supervisors: Goh, Stephen
Date Deposited: 06 Mar 2014 06:06
Last Modified: 06 Mar 2014 06:06
Uncontrolled Keywords: cost effective; galvanising; remote areas; methods
Fields of Research : 09 Engineering > 0912 Materials Engineering > 091205 Functional Materials
URI: http://eprints.usq.edu.au/id/eprint/24638

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