抄録
At start-up operation of hot dip galvanizing baths to galvanize steel products, several leakage accidents of liquid zinc due to the damage in the vicinity of welded parts between side and bottom plates have been reported. Generally, liquid zinc is transferred to a new bath which has been heated adequately. In some of the accidents, however, it was found that transferred liquid zinc solidified in the bath heated inadequately. In other paper, the author reports the stresses of the bath due to the thermal expansion of solid zinc inside the bath based on unsteady thermal conduction analysis and elastic-plastic analysis with taking effects of temperature and strain rate for the solid zinc into account. This paper reports the results of additional analysis to investigate especially the effect of the expansion of solid zinc on generated stresses.
