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电子束冷床熔炼炉熔炼钛扁锭结束后,由于出锭温度过高,造成扁锭长度方向弯曲变形,因此采取真空缓慢冷却来防止变形的发生,时间往往长达8小时,出锭最高温度在100℃左右。经过Pro CAST有限元软件分析及实际生产验证,确认真空冷却3小时出锭,最高温度约为200℃,从200℃到100℃真空状态下冷却速率为22.5℃/h,在大气状态下冷却速率为25.7℃/h,冷却速率相差不大,对铸锭平直度影响轻微。缩短真空冷却时间之后,大幅提高了生产效率。
E-beam cooling bed smelting furnace smelting Titanium ingot after the end of the ingot temperature is too high, causing the length direction of the slab bending deformation, so take a slow cooling vacuum to prevent deformation occurs, the time is often up to 8 hours, the maximum ingot temperature Around 100 ℃. Pro CAST finite element software analysis and actual production verification confirmed that the vacuum cooling 3 hours out of ingot, the maximum temperature is about 200 ℃, from 200 ℃ to 100 ℃ under vacuum cooling rate of 22.5 ℃ / h, the cooling rate in the state of the atmosphere Is 25.7 ℃ / h, the cooling rate is not big difference, has a slight influence on the flatness of the ingot. Shorten the vacuum cooling time, a substantial increase in production efficiency.