Methodological approach of evaluation on prefabrication primers for steel structures

International Journal of Naval Architecture and Ocean Engineering

Jeong-Hun Hyun¹  Sung-Wook Chung² 

[1] Industrial Application R&D Institute, Daewoo Shipbuilding &Corresponding author.;

关键词: Shop primer;    Fillet weld;    Anti-corrosion;    Anti-Porosity;    Optimization;   

DOI  :  

来源: DOAJ

【 摘 要 】

To the date, shipbuilding companies have applied shop primer coating which protects the steel surface from global oxidization in environment. Proper shop primer requires either anti-corrosion ability during construction or anti-porosity ability during welding, and those properties contradict to each other. This report tried to derive an optimizing parameter on these conflicting properties to select a proper shop primer. First, sufficient amounts of the natural salt spray tests were carried out to achieve a series of data for the anti-corrosion ability. Second, lots of T-joint fillet welding test were performed to evaluate the trapped porosity formed in the weld pool. According to the experimental data, we could achieve either the rust-formation rate or the porosity-formation rate, then, each rate was generalized as formulae. Then, we tried to combine these conflicting properties to decide an optimum shop primer.

【 授权许可】

Unknown