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[China Aluminum Industry Network] The appearance of a silver-gray metal luster block, with the increase in the vanadium content of the alloy, the metal luster enhancement, hardness increases, oxygen content increases. When the vanadium content is more than 85%, the product is not easily broken, and the oxide film is easily generated on the long-term storage surface. The VAl55-VAl65 grade has a particle size range of 0.25-50.0mm; the VAl75-VAl85 grade has a particle size range of 1.0-100.0mm.
1. The grades and chemical composition of vanadium-aluminum alloys are as follows:
Grade
chemical composition%
V
Fe
SI
C
O
AL
no greater than
AIV55
50-60
0.35
0.30
0.15
0.20
margin
AIV65
>60-70
0.30
0.30
0.20
0.20
margin
AIV75
>70-80
0.30
0.30
0.20
-
margin
AIV85
>80-90
0.30
0.30
0.30
-
margin
Second, the use of vanadium
Vanadium alloy as an intermediate alloy is mainly used as an elemental additive for making titanium alloys, intermediate alloys for high-temperature alloys, and certain special alloys.
Vanadium aluminum alloy is a kind of advanced alloy material widely used in aerospace field. It has high hardness, elasticity, seawater resistance and lightness. It is used to make seaplane and water glider. At present, only a few countries such as the United States and Germany have achieved industrial production. The development of vanadium-aluminum alloys by Panzhihua Iron and Steel Technology personnel broke through the foreign production process and analysis and testing. Through a large number of experimental studies, it has established a complete, high-precision, wide detection range, simple and fast and easy to practical operation of vanadium aluminum. The analysis and test procedures for the chemical composition of alloys can accurately determine the vanadium, aluminum and carbon, sulfur, silicon, manganese and other trace impurities in the vanadium aluminum alloy, which can meet the needs of process research, production and products. The need for quality control. Panzhihua Iron and Steel Research Institute and Panhong Company have applied this research achievement and have successfully smelted products with chemical components that meet the technical standards of Germany and the United States and have lower costs, and are currently advancing toward industrialization.
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