| 离心铸造HP—Nb高温合金炉管的对接 |
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| 引用本文： | 兰宝彤 夏天东. 离心铸造HP—Nb高温合金炉管的对接[J]. 焊接, 1999, 6(6): 18-21 |
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| 作者姓名： | 兰宝彤 夏天东 |
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| 作者单位： | [1]兰州炼油化工机械厂 [2]甘肃工业大学 |
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| 摘 要： | 分析了离心铸造ＨＰ－Ｎｂ高温合金的焊接性，采用Ｒ－Ｎｉ镍基焊丝手工ＴＩＧ焊打底，Ｒ－Ｐ２专用焊丝手工ＴＩＧ焊填充和全位置全自动管焊机ＴＩＧ盖面的焊接工艺，焊接了外径１２７ｍｍ，壁厚１０ｍｍ的离心铸造ＨＰ－Ｎｂ高温合金炉管对扫接头，并对焊接接头进行了常温和高温机械性能测试和微观组织分析。
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| 关 键 词： | 高温合金 HP－Nb 离心铸造 炉管 焊接 |
BUTT WELDING OF CENTRIFUGALLY CASTED HP - Nb SUPERALLOY PIPE |
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| Lan Baotong et al.. BUTT WELDING OF CENTRIFUGALLY CASTED HP - Nb SUPERALLOY PIPE[J]. Welding & Joining, 1999, 6(6): 18-21 |
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| Authors: | Lan Baotong et al. |
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| Affiliation: | Lan Baotong et al. |
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| Abstract: | The weldability of centrifugally casted HP- Mb superalloy was investigated. The HP- Nb superalloy pipes with thickness of 10 mm and outer diameter of 127 mm were butt - welded using a combined process. The root passes were welded by manual TIG with the nickel - based wire R - Ni, the internally filling passes with the wire R -P2 specially designed for HP - Nb superalloy, and the top passes by the automatic pipe welder tool. The mechanical properties and the microstructures of the welded joints were examined. |
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| Keywords: | Superalloy HP-Nb centrifugal casting pipe |
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