Sand casting is a method of obtaining a casting by pouring molten metal into a sand cavity, cooling and solidifying. When the casting is removed from the sand mold, the sand mold is destroyed, so it is also called one-time casting, commonly known as turning sand.
Application of investment precision casting technology is very extensive, and its development prospects are expected to be broad in the future.
The largest consumption of molybdenum in the steel industry is mainly used to produce alloy steel, stainless steel, tool steel and high-speed steel, cast iron and Roller. Most of the molybdenum is directly used in steelmaking or cast iron after industrial molybdenum briquetting, and a small part is first smelted into ferromolybdenum and then used in steelmaking.
Metal hardness is ability of a metal material to resist local deformation, especially plastic deformation, indentation or scratching. It is an indicator of the hardness of a metal material. It can sensitively reflect the chemical composition, metallographic structure, Differences in heat treatment.