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| 小样品快速冷却实验台的研制及应用 | |
| 引用本文： | 刘红姣,吴锋. 小样品快速冷却实验台的研制及应用[J]. 低温工程, 2007, 0(2): 35-39 |
| 作者姓名： | 刘红姣 吴锋 |
| 作者单位： | 江汉大学化学与环境工程学院,武汉,430056;武汉工程大学理学院,武汉,430074 |
| 基金项目： | 湖北省教育厅重点项目（No.2003A010）. |
| 摘 要： | 研制了一种用于小样品在低温冷却介质中实现超快速冷却的实验台。通过该实验台对小样品实施弹射，其弹射速度在较宽范围内可调，同时能对小样品的沉浸速度和淬冷温度进行准确的测量。将其应用于小样品在过冷液氮中的超快速冷却过程，可以实现较高的沉浸速度和冷却速率。实验研究表明随着小样品沉浸速度的增大、液氮过冷度的增加，冷却速率明显增加。 |
| 关 键 词： | 实验台 弹射装置 超快速冷却 |
| 文章编号： | 1000-6516（2007）02-0035-05 |
| 收稿时间： | 2006-10-18 |
| 修稿时间： | 2006-10-182007-03-02 |
Development and application of a new kind of rapid quenching experimental setup for a small sample |
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| Liu Hongjiao,Wu Feng. Development and application of a new kind of rapid quenching experimental setup for a small sample[J]. Cryogenics, 2007, 0(2): 35-39 | |
| Authors: | Liu Hongjiao Wu Feng |
| Affiliation: | 1. College of Chemical and Evironmental Engineering, Jianghan University, Wuhan 430056 , China;2.School of Sciences, Wuhan Engineering University, Wuhan 430074, China |
| Abstract: | A kind of ultra-rapid cooling experimental system for small sample was designed and developed. The ejecting speed of the ejector could be adjusted continuously in a wider range, the ejecting speed and the temperature of the small sample could he measured accurately. As the equipment was used to study the ultra-rapid cooling of a small sample in sub-liquid ni~Lrogen, the high quenching speeds and the high cooling rates could be reached. The experiment shows that the cooling rates increased dramatically as the ejecting speeding and the sub-liquid nitrogen sub-coolings increased. |
| Keywords: | experimental setup ejecting equipment ultra-rapid cooling |
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