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研究了超声处理对高碳钢铸锭内气孔的影响。研究结果表明,在1 510℃较低温度的高碳钢液中进行超声处理后,铸锭内产生大量气孔;增大超声波功率、提高超声处理温度、采用冷却速度相对较慢的随炉冷却方式均可以降低超声处理后铸锭中气孔率。在1 570℃的较高温度下,超声处理具有一定程度的脱气作用,可以明显降低高碳钢铸锭中氮的质量分数,由未经超声处理时的97×10-6降低到处理后的49×10-6。
The effect of ultrasonic treatment on the pores in high carbon steel ingot was studied. The results show that a large number of pores are formed in the ingot after being sonicated in a high-carbon steel liquid at a relatively low temperature of 1 510 ° C. The ultrasonic power is increased to increase the ultrasonic treatment temperature. A relatively slow cooling rate is adopted in the furnace cooling method Can reduce the porosity of the ingot after sonicating. At a high temperature of 1 570 ℃, the ultrasonic treatment has a certain degree of degassing effect, which can obviously reduce the mass fraction of nitrogen in the ingot of high carbon steel from 97 × 10-6 without ultrasonic treatment to after treatment Of 49 × 10-6.