Molybdenum-rhenium-lanthanum-potassium big stick and preparation method thereof

Abstract

The invention relates to a molybdenum-rhenium-lanthanum-potassium big stick and a preparation method thereof. The molybdenum-rhenium-lanthanum-potassium big stick is prepared from, by mass, 0.1-0.45% of rhenium, 0.1-0.25% of lanthanum, 0.1-0.55% of potassium and the balance molybdenum. The preparation method of the molybdenum-rhenium-lanthanum-potassium big stick comprises the following steps that 1, a lanthanum nitrate solution with the lanthanum oxide content being 30.5 g / L, a rhenium sulfide solution with the rhenium heptoxide content being 20.3 g / L, a potassium silicate solution with the potassium oxide content being 58.7 g / L and an ammonium rhenate solution with the amine oxide content being 28.6 g / L are prepared; 2, ammonium tetramolybdate (NH4)Mo4O13.2H2O is reduced to be molybdenum trioxide MoO3 under the temperature condition of 900-920 DEG C in the hydrogen protection state. According to the molybdenum-rhenium-lanthanum-potassium big stick and the preparation method thereof, the structure is simple, use is convenient, the production efficiency is high, and flying dust is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of mechanical equipment, in particular to a molybdenum-rhenium-lanthanum-potassium rod and a preparation method thereof. Background technique [0002] Pure molybdenum rod is a common molybdenum processing material. It has high melting point, high strength and elastic modulus, small expansion coefficient, low vapor pressure, good electrical conductivity, thermal conductivity and excellent corrosion resistance. It is one of the metal materials with the highest service temperature. one. Widely used in mechanical cutting, heat-resistant structural parts, electronic components, anodes for lamps, various electrodes, glass industry parts, electrodes, etc. However, in general, molybdenum is a material with high low temperature brittleness, and the pure molybdenum rod processed by ordinary methods also has the problems of insufficient strength, high brittleness, and poor machining performance. [0003] At present, ...

AI Technical Summary

Problems solved by technology

However, in general, molybdenum is a material with high low-temperature brittleness, and the pure molybdenum rods processed by ordinary methods also have problems of insufficient strength, high brittleness, and poor mechanical cutting performance.

[0003] At present, there is a lack of a molybdenum-rhenium-lanthanum-potassium rod with high production efficiency and a preparation method thereof