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首页> 外文期刊>Russian Journal of Non-Ferrous Metals >STUDY OF THE POSSIBILITY OF PRODUCING RODS FROM TITANIUM SPONGE
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STUDY OF THE POSSIBILITY OF PRODUCING RODS FROM TITANIUM SPONGE

机译:钛海绵生产棒的可能性的研究

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The traditional technology that is used in the production of titanium articles includes the operations of vacuum-arc melting, casting the billet, double remelting of the billet, turning the billet and heating it to 900 - 1200 deg C in a protective atmosphere, and hot extrusion, which may be preceded by forging (1). An important aspect is the protection of the billet against gas saturation during heating, since the intensive absorption of hydrogen and oxygen by titanium at temperatures above 550 - 600 deg C and of nitrogen at temperatures above 800 - 850 deg C leads to degradation of the deformability of the billet and degradation of the mechanical properties of the product (2, 3). Also important is the prevention of adhesion of the billet to the surface of the tool, which is achieved by the use of separating/lubricating coatings (4).The goal of this study was to determine the possibility of obtaining monolithic titanium rods using a non-billet technology from crushed titanium sponge and, in contrast with (5), without vacuum sintering of the briquets and without forging and vacuum annealing of the billets prior to their hot extrusion into rods. This technology variant is most economical in producing general-purpose titanium articles with the usual properties and chemical composition of the sponge that is used, which are not governed by any special requirements.
机译:钛制品生产中使用的传统技术包括真空电弧熔化,铸造方坯,对方坯进行两次重熔,旋转方坯并在保护性气氛中将其加热到900-1200℃的操作,以及加热挤压,可以在锻造之前进行(1)。一个重要的方面是防止坯料在加热过程中发生气体饱和,因为钛在550-600摄氏度以上的温度下大量吸收氢和氧,而在800-850摄氏度以上的温度下大量吸收氮会导致变形性下降。坯料的破坏和产品机械性能的下降(2、3)。防止坯料粘附在工具表面上也很重要,这是通过使用分离/润滑涂层实现的(4)。本研究的目的是确定使用非涂层获得整体式钛棒的可能性。 -(5)压碎的海绵海绵制成的坯料技术,在没有将坯块进行真空烧结的情况下,并且在将坯料热挤压成棒材之前,没有对坯料进行锻造和真空退火。在生产具有所用海绵的常规特性和化学成分的通用钛制品时,此技术变型最经济,不受任何特殊要求的约束。

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