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国内外用来制造高合金钢和合金粉只有惰性气体雾化法已用于工业生产。但是,用雾化法制造的含铬、铝、钛等的合金粉末,其颗粒表面总是有一层难还原的氧化物膜,影响了质量。本文介绍用氧化物生成自由能比铬、铝、钛、硅、硼更低的氢化钙作还原剂制高合金钢与合金粉的工艺和计算混合料的方法。文中还以Cr18Ni15、Cr28、OCr18Ni9、1Cr18Ni9Ti、1Cr17Ni2、Cr20Ni80和司太利合金为例介绍用氢化钙共还原制造粉末的工艺过程,计算混合粉料的组成,和用这些金属粉末做成的材料的化学成分与机械性能。
At home and abroad for the manufacture of high alloy steel and alloy powder only inert gas atomization method has been used in industrial production. However, alloy powders containing chromium, aluminum, titanium and the like, which are produced by the atomization method, always have a refractory oxide film on the surface of the particles, affecting the quality. This article describes the use of oxide to generate free energy than chromium, aluminum, titanium, silicon, boron and lower calcium hydride as a reducing agent for high alloy steel and alloy powder process and the method of calculating the mixture. In this paper, we also take Cr18Ni15, Cr28, OCr18Ni9, 1Cr18Ni9Ti, 1Cr17Ni2, Cr20Ni80 and Stellite as an example to introduce calcium hydroxide co-reduction process for the manufacture of powder to calculate the composition of mixed powder, and the use of these metal powder made of materials Chemical composition and mechanical properties.