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| URN: | http://URN.fi/URN:NBN:fi:tty-200911097073 |
| Title: | Chemical pre-treatment of steel pipes for oil and gas industry |
| Author: | Suikkanen, Petra |
| Publication type: | Diplomityö |
| Issue date: | 2009-01-14 |
| University: | Tampereen teknillinen yliopisto |
| Faculty: | Automaatio-, kone- ja materiaalitekniikan tiedekunta |
| Department: | Kemian ja biotekniikan laitos |
| Abstract: |
Työn tarkoituksena on tutkia silaanipohjaisia putken esikäsittelyliuoksia, joilla voitaisiin korvata nykyään esikäsittelyyn käytetty karsinogeeninen kromiliuos, ehkä myös jopa putken pinnassa oleva epoksikerros. Putket päällystettiin kohdeyrityksessä, minkä jälkeen esitestien perusteella määritettiin jatkotutkimusmenetelmäksi kuumavesivanhennustesti (HWS) ja/tai katodinen kiinnipysyvyystesti (CDT). /Kir09 The thesis investigates different silane-based primers for the steel surface pre-treatment and the possibility to find replacement for the currently-used, carcinogenic chromate solution. Another aim was to find a pre-treatment method in order to substitute the epoxy layer. The pipes were coated in the company and initial peel tests were carried out to be confident about the success of the coating process. Through these results the following additional tests, hot water soaking (HWS) and/or cathodic disbondment test (CDT) were determined. |
| Copyright: | This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited. |