Smelting method based on nickel-based heat-resistance alloy

Abstract

The invention discloses a smelting method based on a nickel-based heat-resistance alloy. The method comprises specific steps that molten steel is prepared, and the quantitative amount of metal nickel, the quantitative amount of metal chromium, the quantitative amount of metal cobalt, the quantitative amount of ferrocolumbium, the quantitative amount of ferrovanadium and the quantitative amount of ferrotitanium are loaded in an EAF electric arc furnace, and heated to the high temperature until all kinds of metal are molten; impurities of the molten steel are removed, the prepared molten steel is subject to temperature adjustment and refining for a period, and then, electrolytic aluminum and ferroboron are added to be subject to sufficient stirring and deoxidation treatment; the molten steel is poured, the prepared alloy molten steel is put into an LF ladle furnace to be cooled for a period, and then the molten steel is poured into a shaping mold, wherein a heating agent is added into a riser of the mold; alloy phase change treatment is carried out, the poured alloy is subject to heat preservation for 24 h to 30 h at the temperature of 1280 DEG C to 1300 DEG C, after the alloy is annealed, the alloy is rapidly cooled to 800 DEG C, then the alloy is shifted into a heat preservation furnace to be subject to phase change, and after the temperature rises to a certain temperature, forging heating is carried out; and the alloy is re-machined, and the forged alloy is subject to discharging, quenching and medium-temperature tempering. The manufactured alloy is low in cost.

Description

technical field [0001] The invention relates to an alloy smelting method, in particular to a nickel-based heat-resistant alloy-based smelting method, and belongs to the technical field of alloy smelting method applications. Background technique [0002] With the development of science and technology, the demand for the output and variety of special alloys is increasing, and the requirements for quality are becoming more and more strict and demanding. In recent years, focusing on improving the performance, quality, variety and efficiency of special alloys, reducing the cost of special alloys, A series of new technologies, new processes, and new equipment have been adopted in terms of energy saving, consumption reduction, and environmental friendliness, which have greatly improved the cleanliness, uniformity, microstructure, and dimensional accuracy of special alloys. Heat-resistant alloys are also known as Superalloys, which are of great significance for industrial sectors an...

AI Technical Summary

Problems solved by technology

However, there are many deficiencies in the current method of smelting alloys. The current method is to add alloying elements such as Cr, Si, and Al to the steel, or carry out alloying treatment of Cr, Si, and Al on the surface of the steel. A layer of dense oxide film can be quickly formed in the atmosphere, and firmly attached to the surface of the steel, thereby effectively preventing the oxidation from continuing; the second is to form oxides and carbides with high melting points on the surface of the steel by various methods , nitride and other high-temperature resistant coatings, the alloys produced in this way do not have good heat resistance, and the manufacturing cost is high and the manufacturing is complicated