Carbon-reducing and sulfur-extracting processing technology applied to nickel-chromium alloy

Abstract

The invention discloses a carbon-reducing and sulfur-extracting processing technology applied to a nickel-chromium alloy. An alloy material comprises the following components of, by mass, 14%-25% of boron, 74%-85% of chromium, less than or equal to 0.05% of sulfur, less than or equal to 0.05% of carbon, less than or equal to 1% of manganese, less than or equal to 1% of iron and the balance impurities, and the sum of the contents of the components is 100%; and the invention further discloses a low-sulfur low-carbon type nickel-chromium intermediate alloy material. The low-sulfur and low-carbontype nickel-chromium intermediate alloy material has the following advantages that the technology is simple and feasible, and the component requirements of the low-sulfur and low-carbon type nickel-chromium intermediate alloy are met. The requirements for low carbon content and sulfur content of boron-containing chromium-based alloy materials such as amorphous materials, brazing solder and the like are met, the cost is low, the raw materials are easy to obtain, the content of sulfur and carbon elements is reduced at the same time, the boron content is kept good.

Description

technical field [0001] The invention relates to the field of metal materials, in particular to a carbon reduction and sulfur removal processing technology applied to nickel-chromium alloys. Background technique [0002] The application fields of nickel-chromium master alloys: (chromium-based) superalloys, spraying (welding) materials, amorphous materials and many other fields. There are two main methods for the production of nickel-chromium master alloys: sulfur thermal reduction outside the furnace; thermal reduction in electric furnace. The sulfur thermal method outside the furnace uses sulfur Al powder as the reducing agent, and the nickel-chromium master alloy produced has a relatively high content of sulfur Al, generally 1%-4%; the carbon content of the electric furnace thermal reduction method is 0.15%- 1%. [0003] For the nickel-chromium master alloy with C≤0.05%, it is currently produced by the out-of-furnace sulfur heat method, but the disadvantage of this proces...

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Problems solved by technology

[0003] For the nickel-chromium master alloy with C≤0.05%, it is currently produced by the out-of-furnace sulfur heat method, but the disadvantage of this process is that the produced nickel-chromium master alloy has a relatively high content of sulfur and Al, generally 1%-4%