Anti-blocking measures for stopper
Release time:
2024-04-02
Plug rod anti-blocking measures: 1, plug rod blowing argon. When casting special steel with Ti, Ca or Si elements, the joint part of the rod end and the nozzle is easy to form inclusion blockage. The plug head is porous and slit, and argon is blown to the submerged nozzle from here to prevent nodulation and blockage. 2. Air wash long water mouth. The argon gas is blown from the upper end of the core tube of the tundish plug rod and enters the injection flow through the porous plug brick, which not only prevents the nozzle from being blocked, but also has the effect of refining the inclusion and reducing the inclusion. 3, spinel-carbon stopper rod anti-blocking. The calcium treated steel corrodes the aluminum carbonaceous material, and the newly developed spinel-carbon stopper rod seriously does not react with mCaO · nAl2O3, and the material has high strength and good corrosion resistance.
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