The characters of ladle well /setting brick for porous plug
2025-09-26
在现代冶金过程中,采用气体吹炼钢水始于冶炼过程并结束于结晶器中。钢包用透气座砖是这一环节的重要功能性元件!。钢包用透气砖座砖应具备的主要性能可概括为以下几个方面:
(1)高温耐侵蚀性
精炼钢包在温度和时间方面都要求非常严格最高温度往往达到1750℃以上。在精炼操作过程中,熔渣碱度对耐火材料的寿命影响很大。钢包精炼熔渣的碱度约在0.6~0.4的范围内变化,所以耐火材料受到在高温下渗透性很强的酸性渣和碱性渣的侵蚀,损毁速度快。
(2)高温耐磨性
各种钢包精炼方法都采用了强制搅拌,这对座砖的高温磨损非常严重。
(3)耐剥落性。
由于是间歇操作,温度变化很大,极易产生热剥落和结构剥落,使用条件非常苛刻。
In modern metallurgical processes, the use of gas to blow molten steel begins in the smelting process and ends in the crystallizer. The air-permeable base bricks for ladle are important functional components in this link! The main properties that the air-permeable base bricks for ladle should have can be summarized as follows:
(1) High-temperature corrosion resistance
The refining ladle has very strict requirements in terms of temperature and time, and the highest temperature often reaches above 1750℃. During the refining operation, the alkalinity of the slag has a great influence on the life of the refractory material. The alkalinity of the ladle refining slag varies in the range of about 0.6~0.4, so the refractory material is corroded by the acidic slag and alkaline slag with strong permeability at high temperature, and the damage rate is fast.
(2) High-temperature wear resistance
All ladle refining methods use forced stirring, which is very serious for the high-temperature wear of the base bricks.
(3) Spalling resistance
Because it is an intermittent operation, the temperature changes greatly, which is very easy to cause thermal spalling and structural spalling, and the use conditions are very harsh.
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