| 铸钢件冒口离开热节凝固时间的试验研究 |
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| 引用本文： | 袁森 席捉云. 铸钢件冒口离开热节凝固时间的试验研究[J]. 铸造技术, 1997, 0(1): 38-41 |
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| 作者姓名： | 袁森 席捉云 |
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| 作者单位： | 西安理工大学，陕西重型机器厂 |
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| 摘 要： | 测温试验表明，冒口放在热节上，热节处的凝固时间延长８０％；冒口离开热节的距离为１．６８倍热节圆直径时，冒口对热节的热影响基本消失。冒口离开热节放在次热节或薄壁处，形成的接触热节可使该处凝固时间延长４０．４％，有利于建立冒口—接触热节—热节—薄壁之间的动态顺序凝固条件
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| 关 键 词： | 铸钢件 冒口离开热节 凝固时间 |
A Study on Solidification Time of Steel Casting With Riser Away from Hot Spot |
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| Yuan Sen Wei Bing Zhang Weihua Shan Zhongde. A Study on Solidification Time of Steel Casting With Riser Away from Hot Spot[J]. Foundry Technology, 1997, 0(1): 38-41 |
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| Authors: | Yuan Sen Wei Bing Zhang Weihua Shan Zhongde |
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| Affiliation: | Yuan Sen Wei Bing Zhang Weihua Shan Zhongde (Xian University of Technology) Xi Zhueyun (Shaanxi heavy Machinery Plant) |
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| Abstract: | The temperature measuring results show that in case that the riser is located on hot spot, the solidifications time of hot spot is prolonged by 80%. The thermal influence of riser on hot spot disppeared when the distance between the centre of riser and geometry centre of hot spot is 1.68 times of the hot spot diameter. Upon conditions that the riser is away from hot spot and located on secondary hot spot or thin wall, the local solidification time is delayed 40.4% . As a result of local neighbourhood, it is advantageous to establishing the dynamic directional solidification from thin wall to hot spot, and to neighbourhood, towards riser. |
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| Keywords: | Castings of steel Riser is away from hot spot Solidification time |
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