Gas blowing plug and manufacturing method therefor

Details Gas blowing plug and manufacturing method therefor Gas blowing plug and manufacturing method therefor

B - Operations, Transporting

22

D

B22D 1/00 (2006.01) B22D 11/117 (2006.01) B22D 41/46 (2006.01) C21C 5/46 (2006.01) C21C 7/00 (2006.01) C21C 5/48 (2006.01)

Patent

CA 2315570

There are provided a gas blowing plug with a long life and a manufacturing method therefor. The gas blowing plug for blowing gas from the bottom of a molten metal vessel comprises a slit-shaped gas passage ranging from the bottom to the top of the plug. The gas passage is formed by a continuous or discontinuous slit-shaped gas passage in the horizontal cross section of the plug, and is formed by a slit-shaped gas passage continuous from the bottom to the top of the plug and a discontinuous slit- shaped gas passage in the vertical cross section of the plug. The cross-sectional shape of a tubular body can be a star shape, for example.

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