Bismuth manganese iron alloy

Abstract

The invention discloses a bismuth-manganese-ferrite alloy. The alloy is characterized in that the weight percentages of the components of the alloy are as follows: 20 percent to 70 percent of bismuth, 20 percent to 70 percent of manganese, less than or equal to 2 percent of carbon, less than or equal to 0.8 percent of inevitable impurities, and the balance of ferrite. The alloy has the advantages of having practical alloying treatment and high yielding rate of bismuth and is an additive for free-cutting steel alloying treatment.

Description

technical field [0001] The invention relates to a bismuth manganese ferroalloy, in particular to a bismuth manganese ferroalloy used for alloying treatment of free-cutting alloy steel. It belongs to alloy production technology. Background technique [0002] Metal bismuth (Bi) is silvery white, has a strong metallic luster, is brittle, and belongs to the orthorhombic crystal system. my country's bismuth reserves rank first in the world, accounting for about 73% of the world's total reserves. [0003] Bismuth has a wide range of uses and is non-toxic, so it is called a green metal. It is mainly used as a catalyst (bismuth salt) for fusible alloys, medicine, chemical industry and man-made fibers, etc. In recent years, bismuth salts (bismuth germanate) have been used as nuclear radiation detectors and X-ray layer surface scanners (ie CT), and bismuth can also be used to prepare bismuth-based superconducting materials, nuclear fuel coolants, nuclear fission protection devices,...

AI Technical Summary

Problems solved by technology

Therefore, it is still very difficult to use it as an additive in the alloying treatment of free-cutting alloy steel.

And Chinese patent retrieval result shows, alloying treatment is feasible, and the additive bismuth alloy that is used for alloying treatment of free-cutting alloy steel with high yield rate has not yet been reported.