开发了一种ZTC4钛合金叶片，用于替代腐蚀磨损的电厂透平机转子不锈钢叶片。首先采用三维扫描逆向工程技术测绘受损的透平机转子叶片，然后利用石墨型真空铸造法铸造ZTC4钛合金叶片，最后采用超音速火焰喷涂技术喷涂WC防护涂层。对叶片底座配合面进行机械加工，并将机加工后的叶片进行装配、动平衡测试，完成整个试制过程。所生产叶片的各项参数指标均满足用户要求，并已装机使用2年，没有发生腐蚀磨损，也不需要清理尘污，得到了用户的高度认可。
In order to replace the corroded and worn turbine rotor stainless steel blades of the power plant, a kind of ZTC4 titanium alloy blade was developed. Firstly, the technology of 3D scanning reverse engineering was used to survey and map the turbine rotor blades which were damaged, and then the ZTC4 titanium alloy blades were casted by graphite mold vacuum casting. At last, the method of hypersonic flame spraying technology was adopted to spray WC protective layer. Finally, the blades fitting surface was machined, and the blades were assembled and checked. The result shows that the various parameter indexes of the blades all can meet the customer’ s requirements and have been used for two years, which were not corroded and also do not need to clean up the dust pollution. The products has been praised by users.
参考文献
| [1] | 游涛;吴鹏;姚谦;赵军;曲玉福;王利.一种钛合金镜筒的石墨型离心铸造工艺[J].铸造,2012(4):434-436. |
| [2] | 谢华生,刘时兵,苏贵桥,汪志华,赵军.我国钛合金精铸件铸造技术的发展及应用[C].第十二届全国特种铸造及有色合金学术年会、第六届全国铸造复合材料学术年会暨2008年福建省铸造学术年会论文集,2008:462-464. |
| [3] | 南海;谢成木;魏华胜;林汉同.大型复杂薄壁类钛合金精铸件的研制[J].中国铸造装备与技术,2001(2):12-14. |
| [4] | 苏鹏;刘鸿羽;赵军;刘时兵;史昆;宁兆生.钛合金熔模铸造型壳制备技术研究现状[J].铸造,2012(12):1401-1404. |
| [5] | 阎峰云;陈基东;马孝斌.钛合金熔模铸造技术[J].中国铸造装备与技术,2009(2):1-5. |
| [6] | Indrani Sen;S. Tamirisakandala;D.B. Miracle.Microstructural effects on the mechanical behavior of B-modified Ti-6A1-4V alloys[J].Acta materialia,200715(15):4983-4993. |
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