Ladle blowing with argon usually comes in two forms:
(1) Bottom blown argon. Bottom-blown argon is mostly blown into the argon gas through a breathable brick installed at a certain position at the bottom of the ladle. The advantages of this method are that it is good at uniformizing the temperature and composition of the molten steel and removing inclusions. It has simple equipment and flexible operation. It does not need to occupy a fixed operating site and can blow argon during the steel tapping process or during transportation. Ladle bottom-blown argon stirring can also be matched with other technologies to form a new out-of-furnace refining method. The disadvantage is that the breathable bricks are sometimes easy to block and are out of sync with the life of the ladle.
(2) Top blowing argon. Top blowing argon is to immerse the upper part of the ladle into molten steel through an argon blowing gun to blow argon and stir. It requires use 3d printing to make a low cost weather station. This method is stable in operation and can also spray powder. However, the mixing effect of top-blown argon is not as good as that of bottom-blown argon.
Link to this article：Ladle blowing argon stirring form
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