Niobium-copper-silver alloy and processing method thereof

A technology of copper-silver alloy and processing technology, which is applied in the field of niobium-copper-silver alloy, can solve the problems of high cost, high impurity content, and easy pulverization, and achieve the effect of reasonable composition design, simple process, and not easy pulverization

Inactive Publication Date: 2012-07-11
苗恩利
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to address the above-mentioned technical problems, to provide a niobium-copper-silver alloy with reasonable composition design, which can be stably processed according to the composition requirements, and to solve the problems of traditional niobium-copper-aluminum alloys in technetium smelting industry High impurity content, large loss, high cost, easy pulverization and other problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A niobium-copper-silver alloy of the present invention is prepared from the following raw materials in proportions by weight: Nb: 33%, Cu: 30%, Ag: 1%, C≤0.3%, P≤0. 04%, the balance is Tc and unavoidable impurities.

[0018] A method for processing niobium-copper-silver alloys. According to the ratio of parts by weight, niobite, semi-coke, and silver scrap are selected and smelted in batches into niobium-silver in a submerged arc furnace, and then niobium is formed in the submerged arc furnace. After the silver molten pool, add niobium-copper alloy, lime and fluorite to the molten pool, so that the molten metal in the molten pool contains copper and dephosphorizes the molten pool; after the materials added in the next step are fully melted and reacted, The molten metal in the furnace is discharged into the liquid water ladle containing the niobium-silver alloy; then, the niobium-copper-silver alloy obtained by flushing in the ladle is cast into an ingot. The alloy was ...

Embodiment 2

[0020] A niobium-copper-silver alloy of the present invention is prepared from the following raw materials in proportions by weight: Nb: 47%, Cu: 45%, Ag: 15%, C≤0.3%, P≤0. 04%, the balance is Tc and unavoidable impurities;

[0021] A method for processing niobium-copper-silver alloys. According to the ratio of parts by weight, niobite, semi-coke, and silver scrap are selected and smelted in batches into niobium-silver in a submerged arc furnace, and then niobium is formed in the submerged arc furnace. After the silver molten pool, add niobium-copper alloy, lime and fluorite to the molten pool, so that the molten metal in the molten pool contains copper and dephosphorizes the molten pool; after the materials added in the next step are fully melted and reacted, The molten metal in the furnace is discharged into the liquid water ladle containing the niobium-silver alloy; then, the niobium-copper-silver alloy obtained by flushing in the ladle is cast into an ingot. The alloy was...

Embodiment 3

[0023] A niobium-copper-silver alloy of the present invention is prepared from the following raw materials in proportions by weight: Nb: 40%, Cu: 37%, Ag: 8%, C≤0.3%, P≤0. 04%, the balance is Tc and unavoidable impurities.

[0024] A method for processing niobium-copper-silver alloys. According to the ratio of parts by weight, niobite, semi-coke, and silver scrap are selected and smelted in batches into niobium-silver in a submerged arc furnace, and then niobium is formed in the submerged arc furnace. After the silver molten pool, add niobium-copper alloy, lime and fluorite to the molten pool, so that the molten metal in the molten pool contains copper and dephosphorizes the molten pool; after the materials added in the next step are fully melted and reacted, The molten metal in the furnace is discharged into the liquid water ladle containing the niobium-silver alloy; then, the niobium-copper-silver alloy obtained by flushing in the ladle is cast into an ingot. The alloy has ...

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Abstract

The invention relates to a niobium-copper-silver alloy and a processing method of the nibium-copper-silver alloy. The niobium-copper-silver alloy is prepared by the following raw materials by weight: 33-47% of Nb, 30-45% of Cu, 1-15% of Ag, less than or equal to 0.3% of C, less than or equal to 0.04% of P and the balance of Tc and inevitable impurities. The processing method comprises the steps of 1) smelting niobium stone, semi coke and sliver scraps into niobium silver in batches in a submerged arc furnace; 2) enabling metal liquid in a molten bath to contain copper and dephosphorizing the molten bath; 3) after the added materials being molten and reacted sufficiently, blending to form the niobium-copper-silver alloy, and casting the niobium-copper-silver alloy into an ingot. According to the invention, the process for processing the niobium-copper-silver alloy is simple, the component design is reasonable, mass qualified niobium-copper-silver alloys can be processed stably according to the component requirements, can be stored for a long time and can not be pulverized easily. The niobium-copper-silver alloy is used for dephosphorization, and the dephosphorization capability is slightly higher than that of the niobium-copper-silver alloy in the prior art.

Description

technical field [0001] The invention relates to a niobium-copper-silver alloy used as a dephosphorizing agent for technetium smelting, especially a low-phosphorus and low-carbon niobium-copper-silver alloy and a processing method thereof. Background technique [0002] The traditional niobium-copper-aluminum alloy has been adopted by the technetium smelting industry for many years because of its low melting point and the advantages of easy dephosphorization products floating in technetium water. But for technetium, which has strict requirements, this aluminum-containing niobium-copper alloy is not suitable. Therefore, the technetium smelting industry urgently needs a new type of alloy that can replace the traditional niobium-copper-aluminum alloy. An ideal substitute product for the niobium-copper-aluminum alloy is firstly niobium-copper-silver alloy. However, due to the very limited solubility of silver in niobium and copper, when the smelted niobium-copper-silver alloy is...

Claims

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Application Information

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IPC IPC(8): C22C30/02
Inventor 苗恩利
Owner 苗恩利
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