1959 Volume 45 Issue 11 Pages 1255-1260
In previous report (Vol. 45, 1959, p. 699) the authors reported the results of experiments on a small converter with water-cooled tuyeres and jackets. In this report, they reported the water-cooled converter practice to estimate the application of this method and following results were obtained.
By application of a side-blown converter process, low P steel was made while the C was still high by the choice of refining operation. One of the objectives of the experiment was the production of low Cr steel from pig iron that contained medium Cr. The result showed that this process had a strong ability to eliminate Cr completely in refining stage of the heat.
In general, it was important to investigate the characteristics of the refractory meterials for patching. This was examined by microstructure-test. Another test was made with a baby water-cooled converter which was designed as 5kg capacity. From the results it was found that the refractory lining in a converter was eroded by dynamic streams of metal, slag and blast, and especially the action of slag must be emphasized.