Double Injection Currents Protection Pouring of Profiled Billet
YANG Zhijie
ZHOU Xiaolei
Abstract：According to the practice of Laiwu iron and steel production, the combination approach of the sizing nozzle and the submerged nozzle was developed for the profiled billet double injection protection casting process of industrial field application test. And the actual data of the field was collected as the test results to carry on the comparative analysis. The results showed that the cleanliness of molten steel was significantly improved. For the alloy steels, compared with the open casting process, double jet flow protective casting can reduce 10×10-6 of the nitrogen increasing in molten steel, about 54%of the total nitrogen in casting billet was reduced, about 45.5%of total inclusions in rolling materials was reduced than the open casting process. The process is stable and reliable, and meets the needs of the field production.
Keywords：special shaped billetdouble injectionprotective castingnitrogen increaseinclusion
Publication Date：2016-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：2( 38-39 )