Molybdenum Mining Usage in Iron and Steel Industry
- Details
- Category: Molybdenum knowledge
- Published on 22 September 2013
- Written by 陈桂兰
- Hits: 465
According to the world molybdenum consumption statistics, molybdenum application in the steel industry still holds a major position. Molybdenum as alloying elements in steel can enhance the strength of steel, especially high-temperature strength and toughness; raise steel in acid solution and the liquid metal in the corrosion resistance; to improve the wear resistance of steel and to improve hardenability, weldability and heat resistance. The formation of molybdenum carbide is a good element, not in the process of oxidation of steel can be used alone can also be used in conjunction with other alloying elements. Mo special steel consumption growth in the volume of regular, special steel per ton of molybdenum present consumption level has reached 0.201 kg.
molybdenum and chromium, nickel, manganese and silicon can produce different types of stainless steel, tool steel, high-speed steel and alloy steel. Are made of stainless steel has good corrosion resistance, can be used for anti-corrosion steel pipe oil, an increase of about 6% molybdenum stainless steel can be replaced by titanium for desalination plant, ocean vessels, offshore oil and natural gas pipelines. Such stainless steel shell can also be used in cars, sewage treatment equipment. Molybdenum tool steel with tungsten tool efficiency is twice as good performance, low cost and light weight. Molybdenum high speed steel with carbide heterogeneity, wear, toughness, high temperature plastic strong advantages for the manufacture of molding tools. Molybdenum alloy steel structural components used in the manufacture machine tools, industrial vehicles and earth moving equipment. In the rolling state has fine pearlite containing molybdenum alloy steel, rail and bridge construction is an important steel.
Molybdenum as an alloy of iron additive to help form a fully pearlitic matrix, can improve strength and toughness of cast iron to improve the uniform of the large cast, but also can increase the heat treatment of castings may quench. Gray cast iron with molybdenum has a good wear resistance, the gate can be used for heavy vehicles such as wheel and brake pads.
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