Wear resistant and wearable die material

Abstract

The invention relates to a material, in particular to a wear resistant and wearable die material. The die material is prepared by the following components in percentage by weight: 1.2 to 3.50% of C, 1.0 to 3.5% of Si, 0.5 to 1.2% of Mn, not greater than 0.02% of S, 0.3 to 1.0% of Cu, 0.5 to 5.0% of Cr, 0.5 to 3.0% of Al, and the balance of Fe. A heat-conducting property of the material is superior to that of steel, a mechanical performance is close to that of the steel, and the material is stable in chemical performance, prevent molten aluminum from polluting, and high in wear resistance; because graphite is contained in the material, the die material is excellent in heat-conducting property; the graphite is small, and a tail end of the graphite is circular and passivated, so that the mechanical performance of the material is slightly reduced; proper alloy elements are added to the material, so that a layer of protecting films without being infiltrated by aluminum and the molten aluminum can be formed in an internal chamber after a die is thermally processed during a manufacturing process; once a film of the internal chamber is broken during use, a new protection film can be continuously generated, so that erosion of the molten aluminum can be resisted. According to the die material, a Cr element and carbon form a metal compound, so that the die has an excellent wearable performance; the graphite in the material is a good solid lubricant, so that wear can be reduced, and the wear on surfaces of the aluminum and an aluminum alloy can be reduced.

Description

technical field [0001] The invention relates to a material, especially a heat-resistant and wear-resistant mold material. Background technique [0002] In order to save energy, countries all over the world increase the working temperature of heat and electric energy or heat and kinetic energy conversion machines to improve their benefits. In this way, the materials of some supporting parts fail due to lack of heat resistance and wear resistance. In addition, with the adoption of new processes for hot-pressed or hot-extruded plastic, non-ferrous metal or steel parts, the molding temperature and pressure increase, and the materials originally used to make molds can no longer meet the new performance requirements. [0003] For heat-resistant and wear-resistant materials, steel parts are mostly used, but for molds with very high thermal conductivity requirements, steel molds are not as good as graphite molds. At present, most of these parts in my country rely on imports. For ex...

AI Technical Summary

Problems solved by technology

In this way, the chemical composition and size of the mold cavity will change, and the vibration and impact force brought by the material molding will make the mold fail quickly.