The invention relates to a vacuum furnace device used for hydrogenation of sponge titanium and a hydrogenation method thereof, relating to a device for preparing titanium powder and a preparation method thereof. The purpose of the invention is to solve the problem that the oxygen content of titanium powder is too high in the prior art, which can greatly shorten the hydrogenation time and ensure the low oxygen content of the titanium powder. Technical scheme: the device comprises a furnace wall, a furnace wall is arranged at the inner wall of the heating device, furnace tube into the tank from the furnace wall at the upper end of the top tube furnace, the furnace cover is provided with a lifting ring, hydrogen tube through the furnace cover inserted into the furnace tube placed inside the sponge titanium powder, furnace tube and external vacuum tank system connection; methods are: using the device under vacuum, temperature and pressure regulation after introducing hydrogen titanium powder and hydrogen reaction temperature and pressure, continuously adjust the whole process, and achieve rapid cooling pipe through the rapid separation of furnace wall and furnace tank, save time and shorten the production cycle, low oxygen content with the effective control of titanium powder. The invention can be applied to the preparation and processing of sponge titanium.
【技术实现步骤摘要】
本专利技术涉及一种制备钛粉的装置及其制备方法,特别是涉及一种制备低氧含量钛粉的真空炉以及利用此真空炉进行钛粉氢化的方法。
技术介绍
钛及钛合金具有密度低、比强度高、耐腐蚀性强、高温下抗蠕变性能好、焊接性能优良、生物相容性优异等优点。但是海绵钛无法直接使用,因此,用于粉末冶金技术需要海绵钛粉深加工而成的钛粉。海绵钛有很大的吸气性,在氢化过程中,会与从炉盖、连接管道的法兰和阀门渗入的空气中的氧气、氮气以及水蒸气发生反应,导致致命的危害就是氧含量增大而降低钛粉的质量。钛行业发展的巨大推动力来自航空、航天等国防军工需求。从早期的不计成本,到现在许多超轻、超薄、复杂精密零件,以及钛材料的耐高温、耐腐蚀等优良性能,使之有巨大的需求量。同时,对技术的依赖程度与日俱增,粉末冶金、注模成形已成为加工满足要求精密零部件的主要工艺手段。这直接导致对粉末材料的品质也有新的要求比如,低氧含量高质量粉末是可用的必要条件,因此在军事技术装备的发展中有重要的应用价值和作用。当海绵钛粉氢化处理时,钛在吸氢过程中,随着溶入氢量的增加,其基体的晶格常数逐渐增大,并引起点阵的弹性畸变,造成体积增大。氢 ...
【技术保护点】
1.一种用于海绵钛氢化的真空炉装置,其特征在于包括内部中空且上端开口的炉墙(1),炉墙(1)内壁上设置有加热装置(2),炉罐管(3)从炉墙(1)上端放入,炉罐管(3)顶端的炉盖4上设置有起吊环(5),充氢管(6)穿过炉盖(4)插入到炉罐管(3)内部放置的海绵钛粉(7)中,炉罐管(3)与外部抽真空系统(8)连接。
【技术特征摘要】
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