分析了海绵钛残留氯化镁对钛及钛合金熔铸的影响。在钛及钛合金铸锭生产过程中，由于氯化镁吸湿现象导致压制的电极块出现白色析出物、一次锭表面有潮湿的黑斑以及真空系统内沉积物水化等现象。残留氯化镁对真空熔炼及设备的危害主要有：①增大发气量，降低熔炼真空度；②使铸锭气体杂质含量偏高，气孔增加；③使铸锭中残留的高熔点颗粒增加；④腐蚀真空系统，降低设备寿命。最后对出现的问题，提出了相应的预防措施。
The influence of residual magnesium chloride in sponge titanium on casting of titanium and its alloys has been studied .The results show that during the casting process , white precipitates were found on the electrode surface , while humid black spots appeared on the primary ingot and precipitates inside vacuum system hydrated , due to the moisture absorption of magnesium chloride .Damages to the vacuum system and equipments were mainly as follows:①increased gas generation to lower vacuum of the system;②more gas impurities in ingots , then higher porosity;③in-creasing retained particles with high melting point; and ④ vacuum system corrosion to decrease life span of equipments .And measures were raised to prevent occurred problems .
参考文献
| [1] | 李水娥;张金柱;金会心 .海绵钛产品氧、氯杂质来源分析及其降低措施[J].中国稀土学报,2006,24(10):585-588. |
| [2] | 程代松,汤平.海绵钛生产过程中氯含量的控制[J].钛工业进展,2004(02):45-47. |
| [3] | 文娜,张娜,陈飞,邓超.海绵钛中氯化物对钛铸锭产品质量的影响[J].中小企业管理与科技,2011(28):304-304. |
| [4] | 左春生,普学伟.联合法海绵钛生产中氯化镁吸潮及其脱气工艺的探讨[J].轻金属,2011(07):69-71. |
| [5] | 莫畏.钛[M].北京:冶金工业出版社,2008 |
| [6] | 庞全世;薛循升.无水氧化镁存放过程中吸湿性的研究[J].轻金属,1991(12):42-45. |
| [7] | 赵友超,刘方明,张大勇.钛锭表面气孔产生原因浅析[J].轻金属,2007(03):50-51. |
| [8] | 安红,刘俊玲,范丽颖.真空自耗电弧炉熔炼钛铸锭的质量控制[J].世界有色金属,2007(08):25-27. |
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