1. How to determine the time and location of the slag ball?
When tapping reaches 3/4, use a special device to drop the slag ball from the top of the tapping hole 500 mm away from the slag surface, and the slag retaining effect is the best.
2. How to evaluate the use effect of slag ball?
The use effect of the slag ball can be evaluated by observing the shape of the tapping molten steel. When the slag retaining effect is good, the tapping molten steel should flow down in an annular shape. In addition, it can be judged by the color of the slag.
3. What is the function of the groove on the slag ball? How to calculate?
The function of the groove on the slag stop ball is to facilitate the flow of molten steel during the slag stop process.
The formula for calculating the groove volume is: V1=slot area*slot length=πr2/2*L
4. How to evaluate the performance of the slag ball after use?
The effect of the slag ball after use can be evaluated by the thickness of the slag layer in the ladle and the alloy yield. The thickness of the slag layer is small, the alloy yield is high, and the slag blocking effect is good.
5. What data need to be recorded in the field test?
The data that needs to be recorded in the field test include: tapping temperature, use time of slag ball, thickness of slag layer, alloy yield, etc.
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Article Source:The role and performance of the slag ball
Company name: Henan Changxing Refractory Materials Co.,Ltd
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