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| Ti321钛合金轴箱铸件石墨型铸造工艺研究 |
| Graphite Casting Technology of Ti321 Titanium Alloy Axle Box Casting |
| Received:April 19, 2018 Revised:May 10, 2018 |
| DOI：10.3969/j.issn.1674-6457.2018.03.010 |
| 中文关键词: 钛合金 轴箱铸件 石墨型工艺 |
| 英文关键词: titanium alloy axle box casting graphite technology |
| 基金项目:国家高技术研究发展计划（863）（2013AA031003） |
| Author Name | Affiliation | | FAN Shi-xi | 1. Baimtec Material Co., Ltd., Beijing 100094, China
2. AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China
3. Beijing Engineering Research Center of Advanced Titanium Alloys Precision Forming Technology, Beijing 100095, China | | ZHAO Rui-bin | 1. Baimtec Material Co., Ltd., Beijing 100094, China
2. AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China
3. Beijing Engineering Research Center of Advanced Titanium Alloys Precision Forming Technology, Beijing 100095, China | | XIAO Qiang-wei | 1. Baimtec Material Co., Ltd., Beijing 100094, China
2. AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China
3. Beijing Engineering Research Center of Advanced Titanium Alloys Precision Forming Technology, Beijing 100095, China | | NAN Hai | 1. Baimtec Material Co., Ltd., Beijing 100094, China
2. AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China
3. Beijing Engineering Research Center of Advanced Titanium Alloys Precision Forming Technology, Beijing 100095, China |
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| 中文摘要: |
| 目的 研究钛合金高铁轴箱铸件采用石墨铸型工艺时，铸件尺寸、成形及内部质量控制技术。方法 通过对高铁轴箱铸件的结构特点进行分析，针对铸件结构复杂、尺寸比较大、铸件成形比较困难、容易变形的特点，开展了铸型结构设计、铸件尺寸控制技术和铸件成形工艺等方面研究。采用多活块组合的石墨铸型，设计底注开放式浇注系统，利用Procast软件对高铁轴箱铸件的浇注方案进行了模拟分析。选用Ti321合金，设定合理的浇注参数，利用真空自耗电极凝壳炉对铸件进行浇注。结果 铸件成形良好，经过热等静压和后精整后的铸件，铸件内外部冶金质量和性能指标，满足客户标准要求，验证了方案的合理性。结论 铸件的计算机模拟对铸件工艺的设计提供了技术支撑，高铁轴箱铸件采用的石墨型浇注工艺比较合理。 |
| 英文摘要: |
| The paper aims to research dimension, forming and internal quality control technology of castings when casting titanium high-speed axle box with graphite mould. Based on analysis of structural characteristics of high speed axle box castings, the casting structure was designed in view of complex structure, large size and difficult deformation of casting. Casting dimension control technology and casting molding technology were researched. With die insert combination of graphite mould, an open gating system for bottom casting was designed. And the casting scheme of high-speed axle box was simulated and analyzed by Procast software. Reasonable casting parameters were selected to cast with Ti321 alloy in vacuum consumable electrode furnace. After HIP and finishing, internal and external metallurgical quality and performance indicators of castings met customer requirements. The rationality of the scheme was verified. Computer simulation of casting provides technical support for design of casting process. It is reasonable to take graphite casting process for high-speed axle box casting. |
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